Chao Yu | 6d1a832 | 2018-09-12 09:16:07 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 2 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3 | * fs/f2fs/segment.c |
| 4 | * |
| 5 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. |
| 6 | * http://www.samsung.com/ |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 7 | */ |
| 8 | #include <linux/fs.h> |
| 9 | #include <linux/f2fs_fs.h> |
| 10 | #include <linux/bio.h> |
| 11 | #include <linux/blkdev.h> |
Geert Uytterhoeven | 690e4a3 | 2012-12-19 22:19:30 +0100 | [diff] [blame] | 12 | #include <linux/prefetch.h> |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 13 | #include <linux/kthread.h> |
Chao Yu | 74de593 | 2013-11-22 09:09:59 +0800 | [diff] [blame] | 14 | #include <linux/swap.h> |
Jaegeuk Kim | 60b99b4 | 2015-10-05 14:49:57 -0700 | [diff] [blame] | 15 | #include <linux/timer.h> |
Jaegeuk Kim | d430af2 | 2017-05-17 10:36:58 -0700 | [diff] [blame] | 16 | #include <linux/freezer.h> |
Jaegeuk Kim | cfc72cc | 2017-09-09 12:03:23 -0700 | [diff] [blame] | 17 | #include <linux/sched.h> |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 18 | |
| 19 | #include "f2fs.h" |
| 20 | #include "segment.h" |
| 21 | #include "node.h" |
Jaegeuk Kim | 766330d | 2017-08-15 21:27:19 -0700 | [diff] [blame] | 22 | #include "gc.h" |
Jaegeuk Kim | 9e4ded3 | 2014-12-17 19:58:58 -0800 | [diff] [blame] | 23 | #include "trace.h" |
Namjae Jeon | 6ec178d | 2013-04-23 17:51:43 +0900 | [diff] [blame] | 24 | #include <trace/events/f2fs.h> |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 25 | |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 26 | #define __reverse_ffz(x) __reverse_ffs(~(x)) |
| 27 | |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 28 | static struct kmem_cache *discard_entry_slab; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 29 | static struct kmem_cache *discard_cmd_slab; |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 30 | static struct kmem_cache *sit_entry_set_slab; |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 31 | static struct kmem_cache *inmem_entry_slab; |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 32 | |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 33 | static unsigned long __reverse_ulong(unsigned char *str) |
| 34 | { |
| 35 | unsigned long tmp = 0; |
| 36 | int shift = 24, idx = 0; |
| 37 | |
| 38 | #if BITS_PER_LONG == 64 |
| 39 | shift = 56; |
| 40 | #endif |
| 41 | while (shift >= 0) { |
| 42 | tmp |= (unsigned long)str[idx++] << shift; |
| 43 | shift -= BITS_PER_BYTE; |
| 44 | } |
| 45 | return tmp; |
| 46 | } |
| 47 | |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 48 | /* |
| 49 | * __reverse_ffs is copied from include/asm-generic/bitops/__ffs.h since |
| 50 | * MSB and LSB are reversed in a byte by f2fs_set_bit. |
| 51 | */ |
| 52 | static inline unsigned long __reverse_ffs(unsigned long word) |
| 53 | { |
| 54 | int num = 0; |
| 55 | |
| 56 | #if BITS_PER_LONG == 64 |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 57 | if ((word & 0xffffffff00000000UL) == 0) |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 58 | num += 32; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 59 | else |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 60 | word >>= 32; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 61 | #endif |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 62 | if ((word & 0xffff0000) == 0) |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 63 | num += 16; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 64 | else |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 65 | word >>= 16; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 66 | |
| 67 | if ((word & 0xff00) == 0) |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 68 | num += 8; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 69 | else |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 70 | word >>= 8; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 71 | |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 72 | if ((word & 0xf0) == 0) |
| 73 | num += 4; |
| 74 | else |
| 75 | word >>= 4; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 76 | |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 77 | if ((word & 0xc) == 0) |
| 78 | num += 2; |
| 79 | else |
| 80 | word >>= 2; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 81 | |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 82 | if ((word & 0x2) == 0) |
| 83 | num += 1; |
| 84 | return num; |
| 85 | } |
| 86 | |
| 87 | /* |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 88 | * __find_rev_next(_zero)_bit is copied from lib/find_next_bit.c because |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 89 | * f2fs_set_bit makes MSB and LSB reversed in a byte. |
Fan Li | 692223d | 2015-11-12 08:43:04 +0800 | [diff] [blame] | 90 | * @size must be integral times of unsigned long. |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 91 | * Example: |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 92 | * MSB <--> LSB |
| 93 | * f2fs_set_bit(0, bitmap) => 1000 0000 |
| 94 | * f2fs_set_bit(7, bitmap) => 0000 0001 |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 95 | */ |
| 96 | static unsigned long __find_rev_next_bit(const unsigned long *addr, |
| 97 | unsigned long size, unsigned long offset) |
| 98 | { |
| 99 | const unsigned long *p = addr + BIT_WORD(offset); |
Fan Li | 692223d | 2015-11-12 08:43:04 +0800 | [diff] [blame] | 100 | unsigned long result = size; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 101 | unsigned long tmp; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 102 | |
| 103 | if (offset >= size) |
| 104 | return size; |
| 105 | |
Fan Li | 692223d | 2015-11-12 08:43:04 +0800 | [diff] [blame] | 106 | size -= (offset & ~(BITS_PER_LONG - 1)); |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 107 | offset %= BITS_PER_LONG; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 108 | |
Fan Li | 692223d | 2015-11-12 08:43:04 +0800 | [diff] [blame] | 109 | while (1) { |
| 110 | if (*p == 0) |
| 111 | goto pass; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 112 | |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 113 | tmp = __reverse_ulong((unsigned char *)p); |
Fan Li | 692223d | 2015-11-12 08:43:04 +0800 | [diff] [blame] | 114 | |
| 115 | tmp &= ~0UL >> offset; |
| 116 | if (size < BITS_PER_LONG) |
| 117 | tmp &= (~0UL << (BITS_PER_LONG - size)); |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 118 | if (tmp) |
Fan Li | 692223d | 2015-11-12 08:43:04 +0800 | [diff] [blame] | 119 | goto found; |
| 120 | pass: |
| 121 | if (size <= BITS_PER_LONG) |
| 122 | break; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 123 | size -= BITS_PER_LONG; |
Fan Li | 692223d | 2015-11-12 08:43:04 +0800 | [diff] [blame] | 124 | offset = 0; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 125 | p++; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 126 | } |
Fan Li | 692223d | 2015-11-12 08:43:04 +0800 | [diff] [blame] | 127 | return result; |
| 128 | found: |
| 129 | return result - size + __reverse_ffs(tmp); |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | static unsigned long __find_rev_next_zero_bit(const unsigned long *addr, |
| 133 | unsigned long size, unsigned long offset) |
| 134 | { |
| 135 | const unsigned long *p = addr + BIT_WORD(offset); |
Jaegeuk Kim | 8060944 | 2015-12-04 16:51:13 -0800 | [diff] [blame] | 136 | unsigned long result = size; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 137 | unsigned long tmp; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 138 | |
| 139 | if (offset >= size) |
| 140 | return size; |
| 141 | |
Jaegeuk Kim | 8060944 | 2015-12-04 16:51:13 -0800 | [diff] [blame] | 142 | size -= (offset & ~(BITS_PER_LONG - 1)); |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 143 | offset %= BITS_PER_LONG; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 144 | |
Jaegeuk Kim | 8060944 | 2015-12-04 16:51:13 -0800 | [diff] [blame] | 145 | while (1) { |
| 146 | if (*p == ~0UL) |
| 147 | goto pass; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 148 | |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 149 | tmp = __reverse_ulong((unsigned char *)p); |
Jaegeuk Kim | 8060944 | 2015-12-04 16:51:13 -0800 | [diff] [blame] | 150 | |
| 151 | if (offset) |
| 152 | tmp |= ~0UL << (BITS_PER_LONG - offset); |
| 153 | if (size < BITS_PER_LONG) |
| 154 | tmp |= ~0UL >> size; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 155 | if (tmp != ~0UL) |
Jaegeuk Kim | 8060944 | 2015-12-04 16:51:13 -0800 | [diff] [blame] | 156 | goto found; |
| 157 | pass: |
| 158 | if (size <= BITS_PER_LONG) |
| 159 | break; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 160 | size -= BITS_PER_LONG; |
Jaegeuk Kim | 8060944 | 2015-12-04 16:51:13 -0800 | [diff] [blame] | 161 | offset = 0; |
Jaegeuk Kim | f96999c | 2015-10-20 15:17:19 -0700 | [diff] [blame] | 162 | p++; |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 163 | } |
Jaegeuk Kim | 8060944 | 2015-12-04 16:51:13 -0800 | [diff] [blame] | 164 | return result; |
| 165 | found: |
| 166 | return result - size + __reverse_ffz(tmp); |
Changman Lee | 9a7f143 | 2013-11-15 10:42:51 +0900 | [diff] [blame] | 167 | } |
| 168 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 169 | bool f2fs_need_SSR(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 2b170fc | 2017-09-09 11:11:04 -0700 | [diff] [blame] | 170 | { |
| 171 | int node_secs = get_blocktype_secs(sbi, F2FS_DIRTY_NODES); |
| 172 | int dent_secs = get_blocktype_secs(sbi, F2FS_DIRTY_DENTS); |
| 173 | int imeta_secs = get_blocktype_secs(sbi, F2FS_DIRTY_IMETA); |
| 174 | |
| 175 | if (test_opt(sbi, LFS)) |
| 176 | return false; |
Jaegeuk Kim | 0390d83 | 2018-05-07 14:22:40 -0700 | [diff] [blame] | 177 | if (sbi->gc_mode == GC_URGENT) |
Jaegeuk Kim | 2b170fc | 2017-09-09 11:11:04 -0700 | [diff] [blame] | 178 | return true; |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 179 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) |
| 180 | return true; |
Jaegeuk Kim | 2b170fc | 2017-09-09 11:11:04 -0700 | [diff] [blame] | 181 | |
| 182 | return free_sections(sbi) <= (node_secs + 2 * dent_secs + imeta_secs + |
Chao Yu | b9f7387 | 2017-10-28 16:52:33 +0800 | [diff] [blame] | 183 | SM_I(sbi)->min_ssr_sections + reserved_sections(sbi)); |
Jaegeuk Kim | 2b170fc | 2017-09-09 11:11:04 -0700 | [diff] [blame] | 184 | } |
| 185 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 186 | void f2fs_register_inmem_page(struct inode *inode, struct page *page) |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 187 | { |
Jaegeuk Kim | 35e13ca | 2017-10-18 19:05:57 -0700 | [diff] [blame] | 188 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 189 | struct f2fs_inode_info *fi = F2FS_I(inode); |
| 190 | struct inmem_pages *new; |
Jaegeuk Kim | 9be32d7 | 2014-12-05 10:39:49 -0800 | [diff] [blame] | 191 | |
Jaegeuk Kim | 9e4ded3 | 2014-12-17 19:58:58 -0800 | [diff] [blame] | 192 | f2fs_trace_pid(page); |
Jaegeuk Kim | 0722b10 | 2014-12-05 11:58:02 -0800 | [diff] [blame] | 193 | |
Chao Yu | decd36b | 2015-08-07 18:42:09 +0800 | [diff] [blame] | 194 | set_page_private(page, (unsigned long)ATOMIC_WRITTEN_PAGE); |
| 195 | SetPagePrivate(page); |
| 196 | |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 197 | new = f2fs_kmem_cache_alloc(inmem_entry_slab, GFP_NOFS); |
| 198 | |
| 199 | /* add atomic page indices to the list */ |
| 200 | new->page = page; |
| 201 | INIT_LIST_HEAD(&new->list); |
Chao Yu | decd36b | 2015-08-07 18:42:09 +0800 | [diff] [blame] | 202 | |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 203 | /* increase reference count with clean state */ |
| 204 | mutex_lock(&fi->inmem_lock); |
| 205 | get_page(page); |
| 206 | list_add_tail(&new->list, &fi->inmem_pages); |
Jaegeuk Kim | 35e13ca | 2017-10-18 19:05:57 -0700 | [diff] [blame] | 207 | spin_lock(&sbi->inode_lock[ATOMIC_FILE]); |
| 208 | if (list_empty(&fi->inmem_ilist)) |
| 209 | list_add_tail(&fi->inmem_ilist, &sbi->inode_list[ATOMIC_FILE]); |
| 210 | spin_unlock(&sbi->inode_lock[ATOMIC_FILE]); |
Jaegeuk Kim | 8dcf2ff7 | 2014-12-05 17:18:15 -0800 | [diff] [blame] | 211 | inc_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES); |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 212 | mutex_unlock(&fi->inmem_lock); |
Jaegeuk Kim | 8ce67cb | 2015-03-17 17:58:08 -0700 | [diff] [blame] | 213 | |
| 214 | trace_f2fs_register_inmem_page(page, INMEM); |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 215 | } |
| 216 | |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 217 | static int __revoke_inmem_pages(struct inode *inode, |
| 218 | struct list_head *head, bool drop, bool recover) |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 219 | { |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 220 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 221 | struct inmem_pages *cur, *tmp; |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 222 | int err = 0; |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 223 | |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 224 | list_for_each_entry_safe(cur, tmp, head, list) { |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 225 | struct page *page = cur->page; |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 226 | |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 227 | if (drop) |
| 228 | trace_f2fs_commit_inmem_page(page, INMEM_DROP); |
| 229 | |
| 230 | lock_page(page); |
| 231 | |
Chao Yu | d9b3df5 | 2018-12-25 17:43:42 +0800 | [diff] [blame] | 232 | f2fs_wait_on_page_writeback(page, DATA, true, true); |
Chao Yu | 2f7e488 | 2018-04-23 10:36:13 +0800 | [diff] [blame] | 233 | |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 234 | if (recover) { |
| 235 | struct dnode_of_data dn; |
| 236 | struct node_info ni; |
| 237 | |
| 238 | trace_f2fs_commit_inmem_page(page, INMEM_REVOKE); |
Chao Yu | 4b634f36 | 2017-08-08 19:09:08 +0800 | [diff] [blame] | 239 | retry: |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 240 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 241 | err = f2fs_get_dnode_of_data(&dn, page->index, |
| 242 | LOOKUP_NODE); |
Chao Yu | 4b634f36 | 2017-08-08 19:09:08 +0800 | [diff] [blame] | 243 | if (err) { |
| 244 | if (err == -ENOMEM) { |
| 245 | congestion_wait(BLK_RW_ASYNC, HZ/50); |
| 246 | cond_resched(); |
| 247 | goto retry; |
| 248 | } |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 249 | err = -EAGAIN; |
| 250 | goto next; |
| 251 | } |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 252 | |
| 253 | err = f2fs_get_node_info(sbi, dn.nid, &ni); |
| 254 | if (err) { |
| 255 | f2fs_put_dnode(&dn); |
| 256 | return err; |
| 257 | } |
| 258 | |
Daeho Jeong | d1a6b4f | 2018-01-10 16:49:10 +0900 | [diff] [blame] | 259 | if (cur->old_addr == NEW_ADDR) { |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 260 | f2fs_invalidate_blocks(sbi, dn.data_blkaddr); |
Daeho Jeong | d1a6b4f | 2018-01-10 16:49:10 +0900 | [diff] [blame] | 261 | f2fs_update_data_blkaddr(&dn, NEW_ADDR); |
| 262 | } else |
| 263 | f2fs_replace_block(sbi, &dn, dn.data_blkaddr, |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 264 | cur->old_addr, ni.version, true, true); |
| 265 | f2fs_put_dnode(&dn); |
| 266 | } |
| 267 | next: |
Jaegeuk Kim | 63c52d7 | 2016-04-12 14:11:03 -0700 | [diff] [blame] | 268 | /* we don't need to invalidate this in the sccessful status */ |
Chao Yu | 408bca0 | 2018-07-27 18:15:16 +0800 | [diff] [blame] | 269 | if (drop || recover) { |
Jaegeuk Kim | 63c52d7 | 2016-04-12 14:11:03 -0700 | [diff] [blame] | 270 | ClearPageUptodate(page); |
Chao Yu | 408bca0 | 2018-07-27 18:15:16 +0800 | [diff] [blame] | 271 | clear_cold_data(page); |
| 272 | } |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 273 | set_page_private(page, 0); |
Chao Yu | c81ced0 | 2016-04-29 20:13:36 +0800 | [diff] [blame] | 274 | ClearPagePrivate(page); |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 275 | f2fs_put_page(page, 1); |
Chao Yu | decd36b | 2015-08-07 18:42:09 +0800 | [diff] [blame] | 276 | |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 277 | list_del(&cur->list); |
| 278 | kmem_cache_free(inmem_entry_slab, cur); |
Jaegeuk Kim | 8dcf2ff7 | 2014-12-05 17:18:15 -0800 | [diff] [blame] | 279 | dec_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES); |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 280 | } |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 281 | return err; |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 282 | } |
| 283 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 284 | void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure) |
Jaegeuk Kim | 35e13ca | 2017-10-18 19:05:57 -0700 | [diff] [blame] | 285 | { |
| 286 | struct list_head *head = &sbi->inode_list[ATOMIC_FILE]; |
| 287 | struct inode *inode; |
| 288 | struct f2fs_inode_info *fi; |
| 289 | next: |
| 290 | spin_lock(&sbi->inode_lock[ATOMIC_FILE]); |
| 291 | if (list_empty(head)) { |
| 292 | spin_unlock(&sbi->inode_lock[ATOMIC_FILE]); |
| 293 | return; |
| 294 | } |
| 295 | fi = list_first_entry(head, struct f2fs_inode_info, inmem_ilist); |
| 296 | inode = igrab(&fi->vfs_inode); |
| 297 | spin_unlock(&sbi->inode_lock[ATOMIC_FILE]); |
| 298 | |
| 299 | if (inode) { |
Chao Yu | caf10c6 | 2018-05-07 20:28:54 +0800 | [diff] [blame] | 300 | if (gc_failure) { |
| 301 | if (fi->i_gc_failures[GC_FAILURE_ATOMIC]) |
| 302 | goto drop; |
| 303 | goto skip; |
| 304 | } |
| 305 | drop: |
| 306 | set_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST); |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 307 | f2fs_drop_inmem_pages(inode); |
Jaegeuk Kim | 35e13ca | 2017-10-18 19:05:57 -0700 | [diff] [blame] | 308 | iput(inode); |
| 309 | } |
Chao Yu | caf10c6 | 2018-05-07 20:28:54 +0800 | [diff] [blame] | 310 | skip: |
Jaegeuk Kim | 35e13ca | 2017-10-18 19:05:57 -0700 | [diff] [blame] | 311 | congestion_wait(BLK_RW_ASYNC, HZ/50); |
| 312 | cond_resched(); |
| 313 | goto next; |
| 314 | } |
| 315 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 316 | void f2fs_drop_inmem_pages(struct inode *inode) |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 317 | { |
Jaegeuk Kim | 35e13ca | 2017-10-18 19:05:57 -0700 | [diff] [blame] | 318 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 319 | struct f2fs_inode_info *fi = F2FS_I(inode); |
| 320 | |
| 321 | mutex_lock(&fi->inmem_lock); |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 322 | __revoke_inmem_pages(inode, &fi->inmem_pages, true, false); |
Jaegeuk Kim | 35e13ca | 2017-10-18 19:05:57 -0700 | [diff] [blame] | 323 | spin_lock(&sbi->inode_lock[ATOMIC_FILE]); |
| 324 | if (!list_empty(&fi->inmem_ilist)) |
| 325 | list_del_init(&fi->inmem_ilist); |
| 326 | spin_unlock(&sbi->inode_lock[ATOMIC_FILE]); |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 327 | mutex_unlock(&fi->inmem_lock); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 328 | |
| 329 | clear_inode_flag(inode, FI_ATOMIC_FILE); |
Chao Yu | caf10c6 | 2018-05-07 20:28:54 +0800 | [diff] [blame] | 330 | fi->i_gc_failures[GC_FAILURE_ATOMIC] = 0; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 331 | stat_dec_atomic_write(inode); |
| 332 | } |
| 333 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 334 | void f2fs_drop_inmem_page(struct inode *inode, struct page *page) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 335 | { |
| 336 | struct f2fs_inode_info *fi = F2FS_I(inode); |
| 337 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
| 338 | struct list_head *head = &fi->inmem_pages; |
| 339 | struct inmem_pages *cur = NULL; |
| 340 | |
| 341 | f2fs_bug_on(sbi, !IS_ATOMIC_WRITTEN_PAGE(page)); |
| 342 | |
| 343 | mutex_lock(&fi->inmem_lock); |
| 344 | list_for_each_entry(cur, head, list) { |
| 345 | if (cur->page == page) |
| 346 | break; |
| 347 | } |
| 348 | |
Sheng Yong | 51ad179 | 2018-04-17 17:12:27 +0800 | [diff] [blame] | 349 | f2fs_bug_on(sbi, list_empty(head) || cur->page != page); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 350 | list_del(&cur->list); |
| 351 | mutex_unlock(&fi->inmem_lock); |
| 352 | |
| 353 | dec_page_count(sbi, F2FS_INMEM_PAGES); |
| 354 | kmem_cache_free(inmem_entry_slab, cur); |
| 355 | |
| 356 | ClearPageUptodate(page); |
| 357 | set_page_private(page, 0); |
| 358 | ClearPagePrivate(page); |
| 359 | f2fs_put_page(page, 0); |
| 360 | |
| 361 | trace_f2fs_commit_inmem_page(page, INMEM_INVALIDATE); |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 362 | } |
| 363 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 364 | static int __f2fs_commit_inmem_pages(struct inode *inode) |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 365 | { |
| 366 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
| 367 | struct f2fs_inode_info *fi = F2FS_I(inode); |
| 368 | struct inmem_pages *cur, *tmp; |
| 369 | struct f2fs_io_info fio = { |
| 370 | .sbi = sbi, |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 371 | .ino = inode->i_ino, |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 372 | .type = DATA, |
Mike Christie | 04d328d | 2016-06-05 14:31:55 -0500 | [diff] [blame] | 373 | .op = REQ_OP_WRITE, |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 374 | .op_flags = REQ_SYNC | REQ_PRIO, |
Chao Yu | c0fe488 | 2017-08-02 23:21:48 +0800 | [diff] [blame] | 375 | .io_type = FS_DATA_IO, |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 376 | }; |
Chao Yu | 0b4d0d0 | 2018-04-23 10:36:14 +0800 | [diff] [blame] | 377 | struct list_head revoke_list; |
Chao Yu | 39373df | 2018-09-27 23:41:16 +0800 | [diff] [blame] | 378 | bool submit_bio = false; |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 379 | int err = 0; |
| 380 | |
Chao Yu | 0b4d0d0 | 2018-04-23 10:36:14 +0800 | [diff] [blame] | 381 | INIT_LIST_HEAD(&revoke_list); |
| 382 | |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 383 | list_for_each_entry_safe(cur, tmp, &fi->inmem_pages, list) { |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 384 | struct page *page = cur->page; |
| 385 | |
| 386 | lock_page(page); |
| 387 | if (page->mapping == inode->i_mapping) { |
| 388 | trace_f2fs_commit_inmem_page(page, INMEM); |
| 389 | |
Chao Yu | d9b3df5 | 2018-12-25 17:43:42 +0800 | [diff] [blame] | 390 | f2fs_wait_on_page_writeback(page, DATA, true, true); |
Chao Yu | a8c3e53 | 2018-12-12 18:12:30 +0800 | [diff] [blame] | 391 | |
| 392 | set_page_dirty(page); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 393 | if (clear_page_dirty_for_io(page)) { |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 394 | inode_dec_dirty_pages(inode); |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 395 | f2fs_remove_dirty_inode(inode); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 396 | } |
Jaegeuk Kim | 847413f | 2017-07-19 10:59:55 -0700 | [diff] [blame] | 397 | retry: |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 398 | fio.page = page; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 399 | fio.old_blkaddr = NULL_ADDR; |
| 400 | fio.encrypted_page = NULL; |
Jaegeuk Kim | 1b48ed6 | 2017-05-12 13:51:34 -0700 | [diff] [blame] | 401 | fio.need_lock = LOCK_DONE; |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 402 | err = f2fs_do_write_data_page(&fio); |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 403 | if (err) { |
Jaegeuk Kim | 847413f | 2017-07-19 10:59:55 -0700 | [diff] [blame] | 404 | if (err == -ENOMEM) { |
| 405 | congestion_wait(BLK_RW_ASYNC, HZ/50); |
| 406 | cond_resched(); |
| 407 | goto retry; |
| 408 | } |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 409 | unlock_page(page); |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 410 | break; |
| 411 | } |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 412 | /* record old blkaddr for revoking */ |
| 413 | cur->old_addr = fio.old_blkaddr; |
Chao Yu | 39373df | 2018-09-27 23:41:16 +0800 | [diff] [blame] | 414 | submit_bio = true; |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 415 | } |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 416 | unlock_page(page); |
Chao Yu | 0b4d0d0 | 2018-04-23 10:36:14 +0800 | [diff] [blame] | 417 | list_move_tail(&cur->list, &revoke_list); |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 418 | } |
| 419 | |
Chao Yu | 39373df | 2018-09-27 23:41:16 +0800 | [diff] [blame] | 420 | if (submit_bio) |
| 421 | f2fs_submit_merged_write_cond(sbi, inode, NULL, 0, DATA); |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 422 | |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 423 | if (err) { |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 424 | /* |
| 425 | * try to revoke all committed pages, but still we could fail |
| 426 | * due to no memory or other reason, if that happened, EAGAIN |
| 427 | * will be returned, which means in such case, transaction is |
| 428 | * already not integrity, caller should use journal to do the |
| 429 | * recovery or rewrite & commit last transaction. For other |
| 430 | * error number, revoking was done by filesystem itself. |
| 431 | */ |
Chao Yu | 0b4d0d0 | 2018-04-23 10:36:14 +0800 | [diff] [blame] | 432 | err = __revoke_inmem_pages(inode, &revoke_list, false, true); |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 433 | |
| 434 | /* drop all uncommitted pages */ |
| 435 | __revoke_inmem_pages(inode, &fi->inmem_pages, true, false); |
Chao Yu | 0b4d0d0 | 2018-04-23 10:36:14 +0800 | [diff] [blame] | 436 | } else { |
| 437 | __revoke_inmem_pages(inode, &revoke_list, false, false); |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 438 | } |
Chao Yu | 0b4d0d0 | 2018-04-23 10:36:14 +0800 | [diff] [blame] | 439 | |
| 440 | return err; |
| 441 | } |
| 442 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 443 | int f2fs_commit_inmem_pages(struct inode *inode) |
Chao Yu | 0b4d0d0 | 2018-04-23 10:36:14 +0800 | [diff] [blame] | 444 | { |
| 445 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
| 446 | struct f2fs_inode_info *fi = F2FS_I(inode); |
| 447 | int err; |
| 448 | |
| 449 | f2fs_balance_fs(sbi, true); |
Chao Yu | 0b4d0d0 | 2018-04-23 10:36:14 +0800 | [diff] [blame] | 450 | |
Jaegeuk Kim | f64b4d7 | 2018-07-25 12:11:56 +0900 | [diff] [blame] | 451 | down_write(&fi->i_gc_rwsem[WRITE]); |
| 452 | |
| 453 | f2fs_lock_op(sbi); |
Chao Yu | 0b4d0d0 | 2018-04-23 10:36:14 +0800 | [diff] [blame] | 454 | set_inode_flag(inode, FI_ATOMIC_COMMIT); |
| 455 | |
| 456 | mutex_lock(&fi->inmem_lock); |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 457 | err = __f2fs_commit_inmem_pages(inode); |
Chao Yu | 0b4d0d0 | 2018-04-23 10:36:14 +0800 | [diff] [blame] | 458 | |
Jaegeuk Kim | 35e13ca | 2017-10-18 19:05:57 -0700 | [diff] [blame] | 459 | spin_lock(&sbi->inode_lock[ATOMIC_FILE]); |
| 460 | if (!list_empty(&fi->inmem_ilist)) |
| 461 | list_del_init(&fi->inmem_ilist); |
| 462 | spin_unlock(&sbi->inode_lock[ATOMIC_FILE]); |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 463 | mutex_unlock(&fi->inmem_lock); |
| 464 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 465 | clear_inode_flag(inode, FI_ATOMIC_COMMIT); |
| 466 | |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 467 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | f64b4d7 | 2018-07-25 12:11:56 +0900 | [diff] [blame] | 468 | up_write(&fi->i_gc_rwsem[WRITE]); |
| 469 | |
Jaegeuk Kim | edb27de | 2015-07-25 00:52:52 -0700 | [diff] [blame] | 470 | return err; |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 471 | } |
| 472 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 473 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 474 | * This function balances dirty node and dentry pages. |
| 475 | * In addition, it controls garbage collection. |
| 476 | */ |
Jaegeuk Kim | 2c4db1a | 2016-01-07 14:15:04 -0800 | [diff] [blame] | 477 | void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 478 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 479 | if (time_to_inject(sbi, FAULT_CHECKPOINT)) { |
| 480 | f2fs_show_injection_info(FAULT_CHECKPOINT); |
Chao Yu | 0f34802 | 2016-09-26 19:45:55 +0800 | [diff] [blame] | 481 | f2fs_stop_checkpoint(sbi, false); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 482 | } |
Chao Yu | 0f34802 | 2016-09-26 19:45:55 +0800 | [diff] [blame] | 483 | |
Jaegeuk Kim | e589c2c | 2016-06-02 15:24:24 -0700 | [diff] [blame] | 484 | /* balance_fs_bg is able to be pending */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 485 | if (need && excess_cached_nats(sbi)) |
Jaegeuk Kim | e589c2c | 2016-06-02 15:24:24 -0700 | [diff] [blame] | 486 | f2fs_balance_fs_bg(sbi); |
| 487 | |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 488 | if (f2fs_is_checkpoint_ready(sbi)) |
| 489 | return; |
| 490 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 491 | /* |
Jaegeuk Kim | 029cd28 | 2012-12-21 17:20:21 +0900 | [diff] [blame] | 492 | * We should do GC or end up with checkpoint, if there are so many dirty |
| 493 | * dir/node pages without enough free segments. |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 494 | */ |
Jaegeuk Kim | 7f3037a | 2016-09-01 12:02:51 -0700 | [diff] [blame] | 495 | if (has_not_enough_free_secs(sbi, 0, 0)) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 496 | mutex_lock(&sbi->gc_mutex); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 497 | f2fs_gc(sbi, false, false, NULL_SEGNO); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 498 | } |
| 499 | } |
| 500 | |
Jaegeuk Kim | 4660f9c | 2013-10-24 14:19:18 +0900 | [diff] [blame] | 501 | void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi) |
| 502 | { |
Chao Yu | 4636af9 | 2018-05-26 18:03:34 +0800 | [diff] [blame] | 503 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
| 504 | return; |
| 505 | |
Chao Yu | 1dcc336 | 2015-02-05 17:57:31 +0800 | [diff] [blame] | 506 | /* try to shrink extent cache when there is no enough memory */ |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 507 | if (!f2fs_available_free_memory(sbi, EXTENT_CACHE)) |
Jaegeuk Kim | 554df79 | 2015-06-19 13:41:23 -0700 | [diff] [blame] | 508 | f2fs_shrink_extent_tree(sbi, EXTENT_CACHE_SHRINK_NUMBER); |
Chao Yu | 1dcc336 | 2015-02-05 17:57:31 +0800 | [diff] [blame] | 509 | |
Jaegeuk Kim | 1b38dc8 | 2015-06-19 15:36:07 -0700 | [diff] [blame] | 510 | /* check the # of cached NAT entries */ |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 511 | if (!f2fs_available_free_memory(sbi, NAT_ENTRIES)) |
| 512 | f2fs_try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK); |
Jaegeuk Kim | 1b38dc8 | 2015-06-19 15:36:07 -0700 | [diff] [blame] | 513 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 514 | if (!f2fs_available_free_memory(sbi, FREE_NIDS)) |
| 515 | f2fs_try_to_free_nids(sbi, MAX_FREE_NIDS); |
Jaegeuk Kim | ad4edb8 | 2016-06-16 16:41:49 -0700 | [diff] [blame] | 516 | else |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 517 | f2fs_build_free_nids(sbi, false, false); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 518 | |
Sahitya Tummala | feb1b25 | 2018-09-19 14:18:47 +0530 | [diff] [blame] | 519 | if (!is_idle(sbi, REQ_TIME) && |
Chao Yu | 5cf8d7b | 2018-07-25 19:16:21 +0800 | [diff] [blame] | 520 | (!excess_dirty_nats(sbi) && !excess_dirty_nodes(sbi))) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 521 | return; |
Chao Yu | 3169658 | 2015-07-28 18:33:46 +0800 | [diff] [blame] | 522 | |
Jaegeuk Kim | 1b38dc8 | 2015-06-19 15:36:07 -0700 | [diff] [blame] | 523 | /* checkpoint is the only way to shrink partial cached entries */ |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 524 | if (!f2fs_available_free_memory(sbi, NAT_ENTRIES) || |
| 525 | !f2fs_available_free_memory(sbi, INO_ENTRIES) || |
Chao Yu | 7d768d2 | 2016-01-18 18:31:18 +0800 | [diff] [blame] | 526 | excess_prefree_segs(sbi) || |
| 527 | excess_dirty_nats(sbi) || |
Chao Yu | 5cf8d7b | 2018-07-25 19:16:21 +0800 | [diff] [blame] | 528 | excess_dirty_nodes(sbi) || |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 529 | f2fs_time_over(sbi, CP_TIME)) { |
Chao Yu | e9f5b8b | 2016-02-14 18:54:33 +0800 | [diff] [blame] | 530 | if (test_opt(sbi, DATA_FLUSH)) { |
| 531 | struct blk_plug plug; |
| 532 | |
| 533 | blk_start_plug(&plug); |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 534 | f2fs_sync_dirty_inodes(sbi, FILE_INODE); |
Chao Yu | e9f5b8b | 2016-02-14 18:54:33 +0800 | [diff] [blame] | 535 | blk_finish_plug(&plug); |
| 536 | } |
Jaegeuk Kim | 4660f9c | 2013-10-24 14:19:18 +0900 | [diff] [blame] | 537 | f2fs_sync_fs(sbi->sb, true); |
Jaegeuk Kim | 42190d2 | 2016-01-09 13:45:17 -0800 | [diff] [blame] | 538 | stat_inc_bg_cp_count(sbi->stat_info); |
Chao Yu | 36b35a0 | 2015-12-17 17:13:28 +0800 | [diff] [blame] | 539 | } |
Jaegeuk Kim | 4660f9c | 2013-10-24 14:19:18 +0900 | [diff] [blame] | 540 | } |
| 541 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 542 | static int __submit_flush_wait(struct f2fs_sb_info *sbi, |
| 543 | struct block_device *bdev) |
| 544 | { |
Chao Yu | b5db2de | 2017-10-28 16:52:31 +0800 | [diff] [blame] | 545 | struct bio *bio = f2fs_bio_alloc(sbi, 0, true); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 546 | int ret; |
| 547 | |
| 548 | bio->bi_opf = REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH; |
| 549 | bio->bi_bdev = bdev; |
| 550 | ret = submit_bio_wait(bio); |
| 551 | bio_put(bio); |
| 552 | |
| 553 | trace_f2fs_issue_flush(bdev, test_opt(sbi, NOBARRIER), |
| 554 | test_opt(sbi, FLUSH_MERGE), ret); |
| 555 | return ret; |
| 556 | } |
| 557 | |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 558 | static int submit_flush_wait(struct f2fs_sb_info *sbi, nid_t ino) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 559 | { |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 560 | int ret = 0; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 561 | int i; |
| 562 | |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 563 | if (!sbi->s_ndevs) |
| 564 | return __submit_flush_wait(sbi, sbi->sb->s_bdev); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 565 | |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 566 | for (i = 0; i < sbi->s_ndevs; i++) { |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 567 | if (!f2fs_is_dirty_device(sbi, ino, i, FLUSH_INO)) |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 568 | continue; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 569 | ret = __submit_flush_wait(sbi, FDEV(i).bdev); |
| 570 | if (ret) |
| 571 | break; |
| 572 | } |
| 573 | return ret; |
| 574 | } |
| 575 | |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 576 | static int issue_flush_thread(void *data) |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 577 | { |
| 578 | struct f2fs_sb_info *sbi = data; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 579 | struct flush_cmd_control *fcc = SM_I(sbi)->fcc_info; |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 580 | wait_queue_head_t *q = &fcc->flush_wait_queue; |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 581 | repeat: |
| 582 | if (kthread_should_stop()) |
| 583 | return 0; |
| 584 | |
Chao Yu | ce8bd4b | 2017-07-22 08:52:23 +0800 | [diff] [blame] | 585 | sb_start_intwrite(sbi->sb); |
| 586 | |
Gu Zheng | 721bd4d | 2014-09-05 18:31:00 +0800 | [diff] [blame] | 587 | if (!llist_empty(&fcc->issue_list)) { |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 588 | struct flush_cmd *cmd, *next; |
| 589 | int ret; |
| 590 | |
Gu Zheng | 721bd4d | 2014-09-05 18:31:00 +0800 | [diff] [blame] | 591 | fcc->dispatch_list = llist_del_all(&fcc->issue_list); |
| 592 | fcc->dispatch_list = llist_reverse_order(fcc->dispatch_list); |
| 593 | |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 594 | cmd = llist_entry(fcc->dispatch_list, struct flush_cmd, llnode); |
| 595 | |
| 596 | ret = submit_flush_wait(sbi, cmd->ino); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 597 | atomic_inc(&fcc->issued_flush); |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 598 | |
Gu Zheng | 721bd4d | 2014-09-05 18:31:00 +0800 | [diff] [blame] | 599 | llist_for_each_entry_safe(cmd, next, |
| 600 | fcc->dispatch_list, llnode) { |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 601 | cmd->ret = ret; |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 602 | complete(&cmd->wait); |
| 603 | } |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 604 | fcc->dispatch_list = NULL; |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 605 | } |
| 606 | |
Chao Yu | ce8bd4b | 2017-07-22 08:52:23 +0800 | [diff] [blame] | 607 | sb_end_intwrite(sbi->sb); |
| 608 | |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 609 | wait_event_interruptible(*q, |
Gu Zheng | 721bd4d | 2014-09-05 18:31:00 +0800 | [diff] [blame] | 610 | kthread_should_stop() || !llist_empty(&fcc->issue_list)); |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 611 | goto repeat; |
| 612 | } |
| 613 | |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 614 | int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino) |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 615 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 616 | struct flush_cmd_control *fcc = SM_I(sbi)->fcc_info; |
Chao Yu | adf8d90 | 2014-05-08 17:00:35 +0800 | [diff] [blame] | 617 | struct flush_cmd cmd; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 618 | int ret; |
Jaegeuk Kim | 24a9ee0 | 2014-07-25 17:46:10 -0700 | [diff] [blame] | 619 | |
Jaegeuk Kim | 0f7b2ab | 2014-07-23 09:57:31 -0700 | [diff] [blame] | 620 | if (test_opt(sbi, NOBARRIER)) |
| 621 | return 0; |
| 622 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 623 | if (!test_opt(sbi, FLUSH_MERGE)) { |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 624 | atomic_inc(&fcc->queued_flush); |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 625 | ret = submit_flush_wait(sbi, ino); |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 626 | atomic_dec(&fcc->queued_flush); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 627 | atomic_inc(&fcc->issued_flush); |
| 628 | return ret; |
| 629 | } |
Jaegeuk Kim | 740432f | 2015-08-14 11:43:56 -0700 | [diff] [blame] | 630 | |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 631 | if (atomic_inc_return(&fcc->queued_flush) == 1 || sbi->s_ndevs > 1) { |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 632 | ret = submit_flush_wait(sbi, ino); |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 633 | atomic_dec(&fcc->queued_flush); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 634 | |
| 635 | atomic_inc(&fcc->issued_flush); |
Jaegeuk Kim | 740432f | 2015-08-14 11:43:56 -0700 | [diff] [blame] | 636 | return ret; |
| 637 | } |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 638 | |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 639 | cmd.ino = ino; |
Chao Yu | adf8d90 | 2014-05-08 17:00:35 +0800 | [diff] [blame] | 640 | init_completion(&cmd.wait); |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 641 | |
Gu Zheng | 721bd4d | 2014-09-05 18:31:00 +0800 | [diff] [blame] | 642 | llist_add(&cmd.llnode, &fcc->issue_list); |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 643 | |
Chao Yu | 4aab88e | 2017-08-21 22:53:45 +0800 | [diff] [blame] | 644 | /* update issue_list before we wake up issue_flush thread */ |
| 645 | smp_mb(); |
| 646 | |
| 647 | if (waitqueue_active(&fcc->flush_wait_queue)) |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 648 | wake_up(&fcc->flush_wait_queue); |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 649 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 650 | if (fcc->f2fs_issue_flush) { |
| 651 | wait_for_completion(&cmd.wait); |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 652 | atomic_dec(&fcc->queued_flush); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 653 | } else { |
Chao Yu | b0171d9 | 2017-08-31 18:56:06 +0800 | [diff] [blame] | 654 | struct llist_node *list; |
| 655 | |
| 656 | list = llist_del_all(&fcc->issue_list); |
| 657 | if (!list) { |
| 658 | wait_for_completion(&cmd.wait); |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 659 | atomic_dec(&fcc->queued_flush); |
Chao Yu | b0171d9 | 2017-08-31 18:56:06 +0800 | [diff] [blame] | 660 | } else { |
| 661 | struct flush_cmd *tmp, *next; |
| 662 | |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 663 | ret = submit_flush_wait(sbi, ino); |
Chao Yu | b0171d9 | 2017-08-31 18:56:06 +0800 | [diff] [blame] | 664 | |
| 665 | llist_for_each_entry_safe(tmp, next, list, llnode) { |
| 666 | if (tmp == &cmd) { |
| 667 | cmd.ret = ret; |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 668 | atomic_dec(&fcc->queued_flush); |
Chao Yu | b0171d9 | 2017-08-31 18:56:06 +0800 | [diff] [blame] | 669 | continue; |
| 670 | } |
| 671 | tmp->ret = ret; |
| 672 | complete(&tmp->wait); |
| 673 | } |
| 674 | } |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 675 | } |
Chao Yu | adf8d90 | 2014-05-08 17:00:35 +0800 | [diff] [blame] | 676 | |
| 677 | return cmd.ret; |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 678 | } |
| 679 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 680 | int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi) |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 681 | { |
| 682 | dev_t dev = sbi->sb->s_bdev->bd_dev; |
| 683 | struct flush_cmd_control *fcc; |
| 684 | int err = 0; |
| 685 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 686 | if (SM_I(sbi)->fcc_info) { |
| 687 | fcc = SM_I(sbi)->fcc_info; |
Yunlong Song | 471cd23 | 2017-06-24 15:57:19 +0800 | [diff] [blame] | 688 | if (fcc->f2fs_issue_flush) |
| 689 | return err; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 690 | goto init_thread; |
| 691 | } |
| 692 | |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 693 | fcc = f2fs_kzalloc(sbi, sizeof(struct flush_cmd_control), GFP_KERNEL); |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 694 | if (!fcc) |
| 695 | return -ENOMEM; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 696 | atomic_set(&fcc->issued_flush, 0); |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 697 | atomic_set(&fcc->queued_flush, 0); |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 698 | init_waitqueue_head(&fcc->flush_wait_queue); |
Gu Zheng | 721bd4d | 2014-09-05 18:31:00 +0800 | [diff] [blame] | 699 | init_llist_head(&fcc->issue_list); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 700 | SM_I(sbi)->fcc_info = fcc; |
Yunlei He | ad9baf4 | 2017-06-01 16:43:51 +0800 | [diff] [blame] | 701 | if (!test_opt(sbi, FLUSH_MERGE)) |
| 702 | return err; |
| 703 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 704 | init_thread: |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 705 | fcc->f2fs_issue_flush = kthread_run(issue_flush_thread, sbi, |
| 706 | "f2fs_flush-%u:%u", MAJOR(dev), MINOR(dev)); |
| 707 | if (IS_ERR(fcc->f2fs_issue_flush)) { |
| 708 | err = PTR_ERR(fcc->f2fs_issue_flush); |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 709 | kvfree(fcc); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 710 | SM_I(sbi)->fcc_info = NULL; |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 711 | return err; |
| 712 | } |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 713 | |
| 714 | return err; |
| 715 | } |
| 716 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 717 | void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free) |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 718 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 719 | struct flush_cmd_control *fcc = SM_I(sbi)->fcc_info; |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 720 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 721 | if (fcc && fcc->f2fs_issue_flush) { |
| 722 | struct task_struct *flush_thread = fcc->f2fs_issue_flush; |
| 723 | |
| 724 | fcc->f2fs_issue_flush = NULL; |
| 725 | kthread_stop(flush_thread); |
| 726 | } |
| 727 | if (free) { |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 728 | kvfree(fcc); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 729 | SM_I(sbi)->fcc_info = NULL; |
| 730 | } |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 731 | } |
| 732 | |
Chao Yu | fd6422e | 2017-09-29 13:59:39 +0800 | [diff] [blame] | 733 | int f2fs_flush_device_cache(struct f2fs_sb_info *sbi) |
| 734 | { |
| 735 | int ret = 0, i; |
| 736 | |
| 737 | if (!sbi->s_ndevs) |
| 738 | return 0; |
| 739 | |
| 740 | for (i = 1; i < sbi->s_ndevs; i++) { |
| 741 | if (!f2fs_test_bit(i, (char *)&sbi->dirty_device)) |
| 742 | continue; |
| 743 | ret = __submit_flush_wait(sbi, FDEV(i).bdev); |
| 744 | if (ret) |
| 745 | break; |
| 746 | |
| 747 | spin_lock(&sbi->dev_lock); |
| 748 | f2fs_clear_bit(i, (char *)&sbi->dirty_device); |
| 749 | spin_unlock(&sbi->dev_lock); |
| 750 | } |
| 751 | |
| 752 | return ret; |
| 753 | } |
| 754 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 755 | static void __locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno, |
| 756 | enum dirty_type dirty_type) |
| 757 | { |
| 758 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
| 759 | |
| 760 | /* need not be added */ |
| 761 | if (IS_CURSEG(sbi, segno)) |
| 762 | return; |
| 763 | |
| 764 | if (!test_and_set_bit(segno, dirty_i->dirty_segmap[dirty_type])) |
| 765 | dirty_i->nr_dirty[dirty_type]++; |
| 766 | |
| 767 | if (dirty_type == DIRTY) { |
| 768 | struct seg_entry *sentry = get_seg_entry(sbi, segno); |
Changman Lee | 4625d6a | 2013-10-25 17:31:57 +0900 | [diff] [blame] | 769 | enum dirty_type t = sentry->type; |
Jaegeuk Kim | b2f2c39 | 2013-04-01 13:52:09 +0900 | [diff] [blame] | 770 | |
Jaegeuk Kim | ec325b5 | 2014-09-02 16:24:11 -0700 | [diff] [blame] | 771 | if (unlikely(t >= DIRTY)) { |
| 772 | f2fs_bug_on(sbi, 1); |
| 773 | return; |
| 774 | } |
Changman Lee | 4625d6a | 2013-10-25 17:31:57 +0900 | [diff] [blame] | 775 | if (!test_and_set_bit(segno, dirty_i->dirty_segmap[t])) |
| 776 | dirty_i->nr_dirty[t]++; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 777 | } |
| 778 | } |
| 779 | |
| 780 | static void __remove_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno, |
| 781 | enum dirty_type dirty_type) |
| 782 | { |
| 783 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
| 784 | |
| 785 | if (test_and_clear_bit(segno, dirty_i->dirty_segmap[dirty_type])) |
| 786 | dirty_i->nr_dirty[dirty_type]--; |
| 787 | |
| 788 | if (dirty_type == DIRTY) { |
Changman Lee | 4625d6a | 2013-10-25 17:31:57 +0900 | [diff] [blame] | 789 | struct seg_entry *sentry = get_seg_entry(sbi, segno); |
| 790 | enum dirty_type t = sentry->type; |
Jaegeuk Kim | b2f2c39 | 2013-04-01 13:52:09 +0900 | [diff] [blame] | 791 | |
Changman Lee | 4625d6a | 2013-10-25 17:31:57 +0900 | [diff] [blame] | 792 | if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t])) |
| 793 | dirty_i->nr_dirty[t]--; |
Jaegeuk Kim | b2f2c39 | 2013-04-01 13:52:09 +0900 | [diff] [blame] | 794 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 795 | if (get_valid_blocks(sbi, segno, true) == 0) |
| 796 | clear_bit(GET_SEC_FROM_SEG(sbi, segno), |
Jaegeuk Kim | 5ec4e49 | 2013-03-31 13:26:03 +0900 | [diff] [blame] | 797 | dirty_i->victim_secmap); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 798 | } |
| 799 | } |
| 800 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 801 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 802 | * Should not occur error such as -ENOMEM. |
| 803 | * Adding dirty entry into seglist is not critical operation. |
| 804 | * If a given segment is one of current working segments, it won't be added. |
| 805 | */ |
Haicheng Li | 8d8451a | 2013-06-13 16:59:28 +0800 | [diff] [blame] | 806 | static void locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 807 | { |
| 808 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 809 | unsigned short valid_blocks, ckpt_valid_blocks; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 810 | |
| 811 | if (segno == NULL_SEGNO || IS_CURSEG(sbi, segno)) |
| 812 | return; |
| 813 | |
| 814 | mutex_lock(&dirty_i->seglist_lock); |
| 815 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 816 | valid_blocks = get_valid_blocks(sbi, segno, false); |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 817 | ckpt_valid_blocks = get_ckpt_valid_blocks(sbi, segno); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 818 | |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 819 | if (valid_blocks == 0 && (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) || |
| 820 | ckpt_valid_blocks == sbi->blocks_per_seg)) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 821 | __locate_dirty_segment(sbi, segno, PRE); |
| 822 | __remove_dirty_segment(sbi, segno, DIRTY); |
| 823 | } else if (valid_blocks < sbi->blocks_per_seg) { |
| 824 | __locate_dirty_segment(sbi, segno, DIRTY); |
| 825 | } else { |
| 826 | /* Recovery routine with SSR needs this */ |
| 827 | __remove_dirty_segment(sbi, segno, DIRTY); |
| 828 | } |
| 829 | |
| 830 | mutex_unlock(&dirty_i->seglist_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 831 | } |
| 832 | |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 833 | /* This moves currently empty dirty blocks to prefree. Must hold seglist_lock */ |
| 834 | void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi) |
| 835 | { |
| 836 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
| 837 | unsigned int segno; |
| 838 | |
| 839 | mutex_lock(&dirty_i->seglist_lock); |
| 840 | for_each_set_bit(segno, dirty_i->dirty_segmap[DIRTY], MAIN_SEGS(sbi)) { |
| 841 | if (get_valid_blocks(sbi, segno, false)) |
| 842 | continue; |
| 843 | if (IS_CURSEG(sbi, segno)) |
| 844 | continue; |
| 845 | __locate_dirty_segment(sbi, segno, PRE); |
| 846 | __remove_dirty_segment(sbi, segno, DIRTY); |
| 847 | } |
| 848 | mutex_unlock(&dirty_i->seglist_lock); |
| 849 | } |
| 850 | |
| 851 | int f2fs_disable_cp_again(struct f2fs_sb_info *sbi) |
| 852 | { |
| 853 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
| 854 | block_t ovp = overprovision_segments(sbi) << sbi->log_blocks_per_seg; |
| 855 | block_t holes[2] = {0, 0}; /* DATA and NODE */ |
| 856 | struct seg_entry *se; |
| 857 | unsigned int segno; |
| 858 | |
| 859 | mutex_lock(&dirty_i->seglist_lock); |
| 860 | for_each_set_bit(segno, dirty_i->dirty_segmap[DIRTY], MAIN_SEGS(sbi)) { |
| 861 | se = get_seg_entry(sbi, segno); |
| 862 | if (IS_NODESEG(se->type)) |
| 863 | holes[NODE] += sbi->blocks_per_seg - se->valid_blocks; |
| 864 | else |
| 865 | holes[DATA] += sbi->blocks_per_seg - se->valid_blocks; |
| 866 | } |
| 867 | mutex_unlock(&dirty_i->seglist_lock); |
| 868 | |
| 869 | if (holes[DATA] > ovp || holes[NODE] > ovp) |
| 870 | return -EAGAIN; |
Jaegeuk Kim | f2cb919 | 2019-01-24 17:48:38 -0800 | [diff] [blame] | 871 | if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK) && |
| 872 | dirty_segments(sbi) > overprovision_segments(sbi)) |
| 873 | return -EAGAIN; |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 874 | return 0; |
| 875 | } |
| 876 | |
| 877 | /* This is only used by SBI_CP_DISABLED */ |
| 878 | static unsigned int get_free_segment(struct f2fs_sb_info *sbi) |
| 879 | { |
| 880 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
| 881 | unsigned int segno = 0; |
| 882 | |
| 883 | mutex_lock(&dirty_i->seglist_lock); |
| 884 | for_each_set_bit(segno, dirty_i->dirty_segmap[DIRTY], MAIN_SEGS(sbi)) { |
| 885 | if (get_valid_blocks(sbi, segno, false)) |
| 886 | continue; |
| 887 | if (get_ckpt_valid_blocks(sbi, segno)) |
| 888 | continue; |
| 889 | mutex_unlock(&dirty_i->seglist_lock); |
| 890 | return segno; |
| 891 | } |
| 892 | mutex_unlock(&dirty_i->seglist_lock); |
| 893 | return NULL_SEGNO; |
| 894 | } |
| 895 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 896 | static struct discard_cmd *__create_discard_cmd(struct f2fs_sb_info *sbi, |
| 897 | struct block_device *bdev, block_t lstart, |
| 898 | block_t start, block_t len) |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 899 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 900 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 901 | struct list_head *pend_list; |
| 902 | struct discard_cmd *dc; |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 903 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 904 | f2fs_bug_on(sbi, !len); |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 905 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 906 | pend_list = &dcc->pend_list[plist_idx(len)]; |
| 907 | |
| 908 | dc = f2fs_kmem_cache_alloc(discard_cmd_slab, GFP_NOFS); |
| 909 | INIT_LIST_HEAD(&dc->list); |
| 910 | dc->bdev = bdev; |
| 911 | dc->lstart = lstart; |
| 912 | dc->start = start; |
| 913 | dc->len = len; |
| 914 | dc->ref = 0; |
| 915 | dc->state = D_PREP; |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 916 | dc->queued = 0; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 917 | dc->error = 0; |
| 918 | init_completion(&dc->wait); |
| 919 | list_add_tail(&dc->list, pend_list); |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 920 | spin_lock_init(&dc->lock); |
| 921 | dc->bio_ref = 0; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 922 | atomic_inc(&dcc->discard_cmd_cnt); |
| 923 | dcc->undiscard_blks += len; |
| 924 | |
| 925 | return dc; |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 926 | } |
| 927 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 928 | static struct discard_cmd *__attach_discard_cmd(struct f2fs_sb_info *sbi, |
| 929 | struct block_device *bdev, block_t lstart, |
| 930 | block_t start, block_t len, |
| 931 | struct rb_node *parent, struct rb_node **p) |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 932 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 933 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 934 | struct discard_cmd *dc; |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 935 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 936 | dc = __create_discard_cmd(sbi, bdev, lstart, start, len); |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 937 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 938 | rb_link_node(&dc->rb_node, parent, p); |
| 939 | rb_insert_color(&dc->rb_node, &dcc->root); |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 940 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 941 | return dc; |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 942 | } |
| 943 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 944 | static void __detach_discard_cmd(struct discard_cmd_control *dcc, |
| 945 | struct discard_cmd *dc) |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 946 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 947 | if (dc->state == D_DONE) |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 948 | atomic_sub(dc->queued, &dcc->queued_discard); |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 949 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 950 | list_del(&dc->list); |
| 951 | rb_erase(&dc->rb_node, &dcc->root); |
| 952 | dcc->undiscard_blks -= dc->len; |
| 953 | |
| 954 | kmem_cache_free(discard_cmd_slab, dc); |
| 955 | |
| 956 | atomic_dec(&dcc->discard_cmd_cnt); |
| 957 | } |
| 958 | |
| 959 | static void __remove_discard_cmd(struct f2fs_sb_info *sbi, |
| 960 | struct discard_cmd *dc) |
| 961 | { |
| 962 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 963 | unsigned long flags; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 964 | |
Chao Yu | 8258fd3 | 2017-10-04 09:08:36 +0800 | [diff] [blame] | 965 | trace_f2fs_remove_discard(dc->bdev, dc->start, dc->len); |
| 966 | |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 967 | spin_lock_irqsave(&dc->lock, flags); |
| 968 | if (dc->bio_ref) { |
| 969 | spin_unlock_irqrestore(&dc->lock, flags); |
| 970 | return; |
| 971 | } |
| 972 | spin_unlock_irqrestore(&dc->lock, flags); |
| 973 | |
Chao Yu | eb6c48e | 2017-06-05 18:29:07 +0800 | [diff] [blame] | 974 | f2fs_bug_on(sbi, dc->ref); |
| 975 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 976 | if (dc->error == -EOPNOTSUPP) |
| 977 | dc->error = 0; |
| 978 | |
| 979 | if (dc->error) |
Chao Yu | 2f476442 | 2018-08-22 17:17:47 +0800 | [diff] [blame] | 980 | printk_ratelimited( |
| 981 | "%sF2FS-fs: Issue discard(%u, %u, %u) failed, ret: %d", |
| 982 | KERN_INFO, dc->lstart, dc->start, dc->len, dc->error); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 983 | __detach_discard_cmd(dcc, dc); |
| 984 | } |
| 985 | |
| 986 | static void f2fs_submit_discard_endio(struct bio *bio) |
| 987 | { |
| 988 | struct discard_cmd *dc = (struct discard_cmd *)bio->bi_private; |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 989 | unsigned long flags; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 990 | |
| 991 | dc->error = bio->bi_error; |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 992 | |
| 993 | spin_lock_irqsave(&dc->lock, flags); |
| 994 | dc->bio_ref--; |
| 995 | if (!dc->bio_ref && dc->state == D_SUBMIT) { |
| 996 | dc->state = D_DONE; |
| 997 | complete_all(&dc->wait); |
| 998 | } |
| 999 | spin_unlock_irqrestore(&dc->lock, flags); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1000 | bio_put(bio); |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 1001 | } |
| 1002 | |
Wei Yongjun | 02cfdab | 2018-01-05 09:41:20 +0000 | [diff] [blame] | 1003 | static void __check_sit_bitmap(struct f2fs_sb_info *sbi, |
Chao Yu | 280fd0f | 2017-06-30 17:19:02 +0800 | [diff] [blame] | 1004 | block_t start, block_t end) |
| 1005 | { |
| 1006 | #ifdef CONFIG_F2FS_CHECK_FS |
| 1007 | struct seg_entry *sentry; |
| 1008 | unsigned int segno; |
| 1009 | block_t blk = start; |
| 1010 | unsigned long offset, size, max_blocks = sbi->blocks_per_seg; |
| 1011 | unsigned long *map; |
| 1012 | |
| 1013 | while (blk < end) { |
| 1014 | segno = GET_SEGNO(sbi, blk); |
| 1015 | sentry = get_seg_entry(sbi, segno); |
| 1016 | offset = GET_BLKOFF_FROM_SEG0(sbi, blk); |
| 1017 | |
Yunlong Song | 55824ab | 2017-08-04 17:07:15 +0800 | [diff] [blame] | 1018 | if (end < START_BLOCK(sbi, segno + 1)) |
| 1019 | size = GET_BLKOFF_FROM_SEG0(sbi, end); |
| 1020 | else |
| 1021 | size = max_blocks; |
Chao Yu | 280fd0f | 2017-06-30 17:19:02 +0800 | [diff] [blame] | 1022 | map = (unsigned long *)(sentry->cur_valid_map); |
| 1023 | offset = __find_rev_next_bit(map, size, offset); |
| 1024 | f2fs_bug_on(sbi, offset != size); |
Yunlong Song | 55824ab | 2017-08-04 17:07:15 +0800 | [diff] [blame] | 1025 | blk = START_BLOCK(sbi, segno + 1); |
Chao Yu | 280fd0f | 2017-06-30 17:19:02 +0800 | [diff] [blame] | 1026 | } |
| 1027 | #endif |
| 1028 | } |
| 1029 | |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1030 | static void __init_discard_policy(struct f2fs_sb_info *sbi, |
| 1031 | struct discard_policy *dpolicy, |
| 1032 | int discard_type, unsigned int granularity) |
| 1033 | { |
| 1034 | /* common policy */ |
| 1035 | dpolicy->type = discard_type; |
| 1036 | dpolicy->sync = true; |
Chao Yu | f4a0eb5 | 2018-07-08 22:11:01 +0800 | [diff] [blame] | 1037 | dpolicy->ordered = false; |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1038 | dpolicy->granularity = granularity; |
| 1039 | |
| 1040 | dpolicy->max_requests = DEF_MAX_DISCARD_REQUEST; |
| 1041 | dpolicy->io_aware_gran = MAX_PLIST_NUM; |
Jaegeuk Kim | b842f2d | 2019-01-14 10:42:11 -0800 | [diff] [blame] | 1042 | dpolicy->timeout = 0; |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1043 | |
| 1044 | if (discard_type == DPOLICY_BG) { |
| 1045 | dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME; |
Yunlei He | 8d74ddc | 2018-04-08 15:11:11 +0800 | [diff] [blame] | 1046 | dpolicy->mid_interval = DEF_MID_DISCARD_ISSUE_TIME; |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1047 | dpolicy->max_interval = DEF_MAX_DISCARD_ISSUE_TIME; |
| 1048 | dpolicy->io_aware = true; |
Chao Yu | cea3ae5 | 2018-04-10 15:43:09 +0800 | [diff] [blame] | 1049 | dpolicy->sync = false; |
Chao Yu | f4a0eb5 | 2018-07-08 22:11:01 +0800 | [diff] [blame] | 1050 | dpolicy->ordered = true; |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1051 | if (utilization(sbi) > DEF_DISCARD_URGENT_UTIL) { |
| 1052 | dpolicy->granularity = 1; |
| 1053 | dpolicy->max_interval = DEF_MIN_DISCARD_ISSUE_TIME; |
| 1054 | } |
| 1055 | } else if (discard_type == DPOLICY_FORCE) { |
| 1056 | dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME; |
Yunlei He | 8d74ddc | 2018-04-08 15:11:11 +0800 | [diff] [blame] | 1057 | dpolicy->mid_interval = DEF_MID_DISCARD_ISSUE_TIME; |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1058 | dpolicy->max_interval = DEF_MAX_DISCARD_ISSUE_TIME; |
| 1059 | dpolicy->io_aware = false; |
| 1060 | } else if (discard_type == DPOLICY_FSTRIM) { |
| 1061 | dpolicy->io_aware = false; |
| 1062 | } else if (discard_type == DPOLICY_UMOUNT) { |
Yunlei He | addb448 | 2018-04-04 17:29:05 +0800 | [diff] [blame] | 1063 | dpolicy->max_requests = UINT_MAX; |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1064 | dpolicy->io_aware = false; |
Jaegeuk Kim | 4eefccf | 2019-01-25 09:12:13 -0800 | [diff] [blame^] | 1065 | /* we need to issue all to keep CP_TRIMMED_FLAG */ |
| 1066 | dpolicy->granularity = 1; |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1067 | } |
| 1068 | } |
| 1069 | |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1070 | static void __update_discard_tree_range(struct f2fs_sb_info *sbi, |
| 1071 | struct block_device *bdev, block_t lstart, |
| 1072 | block_t start, block_t len); |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 1073 | /* this function is copied from blkdev_issue_discard from block/blk-lib.c */ |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1074 | static int __submit_discard_cmd(struct f2fs_sb_info *sbi, |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1075 | struct discard_policy *dpolicy, |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1076 | struct discard_cmd *dc, |
| 1077 | unsigned int *issued) |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 1078 | { |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1079 | struct block_device *bdev = dc->bdev; |
| 1080 | struct request_queue *q = bdev_get_queue(bdev); |
| 1081 | unsigned int max_discard_blocks = |
| 1082 | SECTOR_TO_BLOCK(q->limits.max_discard_sectors); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1083 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1084 | struct list_head *wait_list = (dpolicy->type == DPOLICY_FSTRIM) ? |
| 1085 | &(dcc->fstrim_list) : &(dcc->wait_list); |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1086 | int flag = dpolicy->sync ? REQ_SYNC : 0; |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1087 | block_t lstart, start, len, total_len; |
| 1088 | int err = 0; |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 1089 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1090 | if (dc->state != D_PREP) |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1091 | return 0; |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 1092 | |
Yunlei He | 198f637 | 2018-04-13 11:08:05 +0800 | [diff] [blame] | 1093 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1094 | return 0; |
Yunlei He | 198f637 | 2018-04-13 11:08:05 +0800 | [diff] [blame] | 1095 | |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1096 | trace_f2fs_issue_discard(bdev, dc->start, dc->len); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1097 | |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1098 | lstart = dc->lstart; |
| 1099 | start = dc->start; |
| 1100 | len = dc->len; |
| 1101 | total_len = len; |
| 1102 | |
| 1103 | dc->len = 0; |
| 1104 | |
| 1105 | while (total_len && *issued < dpolicy->max_requests && !err) { |
| 1106 | struct bio *bio = NULL; |
| 1107 | unsigned long flags; |
| 1108 | bool last = true; |
| 1109 | |
| 1110 | if (len > max_discard_blocks) { |
| 1111 | len = max_discard_blocks; |
| 1112 | last = false; |
| 1113 | } |
| 1114 | |
| 1115 | (*issued)++; |
| 1116 | if (*issued == dpolicy->max_requests) |
| 1117 | last = true; |
| 1118 | |
| 1119 | dc->len += len; |
| 1120 | |
Chao Yu | 8bdb419 | 2018-08-06 20:30:18 +0800 | [diff] [blame] | 1121 | if (time_to_inject(sbi, FAULT_DISCARD)) { |
| 1122 | f2fs_show_injection_info(FAULT_DISCARD); |
| 1123 | err = -EIO; |
| 1124 | goto submit; |
| 1125 | } |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1126 | err = __blkdev_issue_discard(bdev, |
| 1127 | SECTOR_FROM_BLOCK(start), |
| 1128 | SECTOR_FROM_BLOCK(len), |
| 1129 | GFP_NOFS, 0, &bio); |
Chao Yu | 8bdb419 | 2018-08-06 20:30:18 +0800 | [diff] [blame] | 1130 | submit: |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1131 | if (err) { |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1132 | spin_lock_irqsave(&dc->lock, flags); |
| 1133 | if (dc->state == D_PARTIAL) |
| 1134 | dc->state = D_SUBMIT; |
| 1135 | spin_unlock_irqrestore(&dc->lock, flags); |
| 1136 | |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1137 | break; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1138 | } |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1139 | |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1140 | f2fs_bug_on(sbi, !bio); |
| 1141 | |
| 1142 | /* |
| 1143 | * should keep before submission to avoid D_DONE |
| 1144 | * right away |
| 1145 | */ |
| 1146 | spin_lock_irqsave(&dc->lock, flags); |
| 1147 | if (last) |
| 1148 | dc->state = D_SUBMIT; |
| 1149 | else |
| 1150 | dc->state = D_PARTIAL; |
| 1151 | dc->bio_ref++; |
| 1152 | spin_unlock_irqrestore(&dc->lock, flags); |
| 1153 | |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 1154 | atomic_inc(&dcc->queued_discard); |
| 1155 | dc->queued++; |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1156 | list_move_tail(&dc->list, wait_list); |
| 1157 | |
| 1158 | /* sanity check on discard range */ |
Qiuyang Sun | 489f2dc | 2018-12-18 17:32:23 +0800 | [diff] [blame] | 1159 | __check_sit_bitmap(sbi, lstart, lstart + len); |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1160 | |
| 1161 | bio->bi_private = dc; |
| 1162 | bio->bi_end_io = f2fs_submit_discard_endio; |
| 1163 | bio->bi_opf |= flag; |
| 1164 | submit_bio(bio); |
| 1165 | |
| 1166 | atomic_inc(&dcc->issued_discard); |
| 1167 | |
| 1168 | f2fs_update_iostat(sbi, FS_DISCARD, 1); |
| 1169 | |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1170 | lstart += len; |
| 1171 | start += len; |
| 1172 | total_len -= len; |
| 1173 | len = total_len; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1174 | } |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1175 | |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1176 | if (!err && len) |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1177 | __update_discard_tree_range(sbi, bdev, lstart, start, len); |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1178 | return err; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1179 | } |
| 1180 | |
| 1181 | static struct discard_cmd *__insert_discard_tree(struct f2fs_sb_info *sbi, |
| 1182 | struct block_device *bdev, block_t lstart, |
| 1183 | block_t start, block_t len, |
| 1184 | struct rb_node **insert_p, |
| 1185 | struct rb_node *insert_parent) |
| 1186 | { |
| 1187 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
Colin Ian King | 872d8e3 | 2017-10-19 12:58:21 +0200 | [diff] [blame] | 1188 | struct rb_node **p; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1189 | struct rb_node *parent = NULL; |
| 1190 | struct discard_cmd *dc = NULL; |
| 1191 | |
| 1192 | if (insert_p && insert_parent) { |
| 1193 | parent = insert_parent; |
| 1194 | p = insert_p; |
| 1195 | goto do_insert; |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 1196 | } |
| 1197 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1198 | p = f2fs_lookup_rb_tree_for_insert(sbi, &dcc->root, &parent, lstart); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1199 | do_insert: |
| 1200 | dc = __attach_discard_cmd(sbi, bdev, lstart, start, len, parent, p); |
| 1201 | if (!dc) |
| 1202 | return NULL; |
| 1203 | |
| 1204 | return dc; |
| 1205 | } |
| 1206 | |
| 1207 | static void __relocate_discard_cmd(struct discard_cmd_control *dcc, |
| 1208 | struct discard_cmd *dc) |
| 1209 | { |
| 1210 | list_move_tail(&dc->list, &dcc->pend_list[plist_idx(dc->len)]); |
| 1211 | } |
| 1212 | |
| 1213 | static void __punch_discard_cmd(struct f2fs_sb_info *sbi, |
| 1214 | struct discard_cmd *dc, block_t blkaddr) |
| 1215 | { |
| 1216 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 1217 | struct discard_info di = dc->di; |
| 1218 | bool modified = false; |
| 1219 | |
| 1220 | if (dc->state == D_DONE || dc->len == 1) { |
| 1221 | __remove_discard_cmd(sbi, dc); |
| 1222 | return; |
| 1223 | } |
| 1224 | |
| 1225 | dcc->undiscard_blks -= di.len; |
| 1226 | |
| 1227 | if (blkaddr > di.lstart) { |
| 1228 | dc->len = blkaddr - dc->lstart; |
| 1229 | dcc->undiscard_blks += dc->len; |
| 1230 | __relocate_discard_cmd(dcc, dc); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1231 | modified = true; |
| 1232 | } |
| 1233 | |
| 1234 | if (blkaddr < di.lstart + di.len - 1) { |
| 1235 | if (modified) { |
| 1236 | __insert_discard_tree(sbi, dc->bdev, blkaddr + 1, |
| 1237 | di.start + blkaddr + 1 - di.lstart, |
| 1238 | di.lstart + di.len - 1 - blkaddr, |
| 1239 | NULL, NULL); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1240 | } else { |
| 1241 | dc->lstart++; |
| 1242 | dc->len--; |
| 1243 | dc->start++; |
| 1244 | dcc->undiscard_blks += dc->len; |
| 1245 | __relocate_discard_cmd(dcc, dc); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1246 | } |
| 1247 | } |
| 1248 | } |
| 1249 | |
| 1250 | static void __update_discard_tree_range(struct f2fs_sb_info *sbi, |
| 1251 | struct block_device *bdev, block_t lstart, |
| 1252 | block_t start, block_t len) |
| 1253 | { |
| 1254 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 1255 | struct discard_cmd *prev_dc = NULL, *next_dc = NULL; |
| 1256 | struct discard_cmd *dc; |
| 1257 | struct discard_info di = {0}; |
| 1258 | struct rb_node **insert_p = NULL, *insert_parent = NULL; |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1259 | struct request_queue *q = bdev_get_queue(bdev); |
| 1260 | unsigned int max_discard_blocks = |
| 1261 | SECTOR_TO_BLOCK(q->limits.max_discard_sectors); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1262 | block_t end = lstart + len; |
| 1263 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1264 | dc = (struct discard_cmd *)f2fs_lookup_rb_tree_ret(&dcc->root, |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1265 | NULL, lstart, |
| 1266 | (struct rb_entry **)&prev_dc, |
| 1267 | (struct rb_entry **)&next_dc, |
| 1268 | &insert_p, &insert_parent, true); |
| 1269 | if (dc) |
| 1270 | prev_dc = dc; |
| 1271 | |
| 1272 | if (!prev_dc) { |
| 1273 | di.lstart = lstart; |
| 1274 | di.len = next_dc ? next_dc->lstart - lstart : len; |
| 1275 | di.len = min(di.len, len); |
| 1276 | di.start = start; |
| 1277 | } |
| 1278 | |
| 1279 | while (1) { |
| 1280 | struct rb_node *node; |
| 1281 | bool merged = false; |
| 1282 | struct discard_cmd *tdc = NULL; |
| 1283 | |
| 1284 | if (prev_dc) { |
| 1285 | di.lstart = prev_dc->lstart + prev_dc->len; |
| 1286 | if (di.lstart < lstart) |
| 1287 | di.lstart = lstart; |
| 1288 | if (di.lstart >= end) |
| 1289 | break; |
| 1290 | |
| 1291 | if (!next_dc || next_dc->lstart > end) |
| 1292 | di.len = end - di.lstart; |
| 1293 | else |
| 1294 | di.len = next_dc->lstart - di.lstart; |
| 1295 | di.start = start + di.lstart - lstart; |
| 1296 | } |
| 1297 | |
| 1298 | if (!di.len) |
| 1299 | goto next; |
| 1300 | |
| 1301 | if (prev_dc && prev_dc->state == D_PREP && |
| 1302 | prev_dc->bdev == bdev && |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1303 | __is_discard_back_mergeable(&di, &prev_dc->di, |
| 1304 | max_discard_blocks)) { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1305 | prev_dc->di.len += di.len; |
| 1306 | dcc->undiscard_blks += di.len; |
| 1307 | __relocate_discard_cmd(dcc, prev_dc); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1308 | di = prev_dc->di; |
| 1309 | tdc = prev_dc; |
| 1310 | merged = true; |
| 1311 | } |
| 1312 | |
| 1313 | if (next_dc && next_dc->state == D_PREP && |
| 1314 | next_dc->bdev == bdev && |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1315 | __is_discard_front_mergeable(&di, &next_dc->di, |
| 1316 | max_discard_blocks)) { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1317 | next_dc->di.lstart = di.lstart; |
| 1318 | next_dc->di.len += di.len; |
| 1319 | next_dc->di.start = di.start; |
| 1320 | dcc->undiscard_blks += di.len; |
| 1321 | __relocate_discard_cmd(dcc, next_dc); |
| 1322 | if (tdc) |
| 1323 | __remove_discard_cmd(sbi, tdc); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1324 | merged = true; |
| 1325 | } |
| 1326 | |
| 1327 | if (!merged) { |
| 1328 | __insert_discard_tree(sbi, bdev, di.lstart, di.start, |
| 1329 | di.len, NULL, NULL); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1330 | } |
| 1331 | next: |
| 1332 | prev_dc = next_dc; |
| 1333 | if (!prev_dc) |
| 1334 | break; |
| 1335 | |
| 1336 | node = rb_next(&prev_dc->rb_node); |
| 1337 | next_dc = rb_entry_safe(node, struct discard_cmd, rb_node); |
| 1338 | } |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1339 | } |
| 1340 | |
| 1341 | static int __queue_discard_cmd(struct f2fs_sb_info *sbi, |
| 1342 | struct block_device *bdev, block_t blkstart, block_t blklen) |
| 1343 | { |
| 1344 | block_t lblkstart = blkstart; |
| 1345 | |
| 1346 | trace_f2fs_queue_discard(bdev, blkstart, blklen); |
| 1347 | |
| 1348 | if (sbi->s_ndevs) { |
| 1349 | int devi = f2fs_target_device_index(sbi, blkstart); |
| 1350 | |
| 1351 | blkstart -= FDEV(devi).start_blk; |
| 1352 | } |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1353 | mutex_lock(&SM_I(sbi)->dcc_info->cmd_lock); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1354 | __update_discard_tree_range(sbi, bdev, lblkstart, blkstart, blklen); |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1355 | mutex_unlock(&SM_I(sbi)->dcc_info->cmd_lock); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1356 | return 0; |
| 1357 | } |
| 1358 | |
Chao Yu | f4a0eb5 | 2018-07-08 22:11:01 +0800 | [diff] [blame] | 1359 | static unsigned int __issue_discard_cmd_orderly(struct f2fs_sb_info *sbi, |
| 1360 | struct discard_policy *dpolicy) |
| 1361 | { |
| 1362 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 1363 | struct discard_cmd *prev_dc = NULL, *next_dc = NULL; |
| 1364 | struct rb_node **insert_p = NULL, *insert_parent = NULL; |
| 1365 | struct discard_cmd *dc; |
| 1366 | struct blk_plug plug; |
| 1367 | unsigned int pos = dcc->next_pos; |
| 1368 | unsigned int issued = 0; |
| 1369 | bool io_interrupted = false; |
| 1370 | |
| 1371 | mutex_lock(&dcc->cmd_lock); |
| 1372 | dc = (struct discard_cmd *)f2fs_lookup_rb_tree_ret(&dcc->root, |
| 1373 | NULL, pos, |
| 1374 | (struct rb_entry **)&prev_dc, |
| 1375 | (struct rb_entry **)&next_dc, |
| 1376 | &insert_p, &insert_parent, true); |
| 1377 | if (!dc) |
| 1378 | dc = next_dc; |
| 1379 | |
| 1380 | blk_start_plug(&plug); |
| 1381 | |
| 1382 | while (dc) { |
| 1383 | struct rb_node *node; |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1384 | int err = 0; |
Chao Yu | f4a0eb5 | 2018-07-08 22:11:01 +0800 | [diff] [blame] | 1385 | |
| 1386 | if (dc->state != D_PREP) |
| 1387 | goto next; |
| 1388 | |
Sahitya Tummala | feb1b25 | 2018-09-19 14:18:47 +0530 | [diff] [blame] | 1389 | if (dpolicy->io_aware && !is_idle(sbi, DISCARD_TIME)) { |
Chao Yu | f4a0eb5 | 2018-07-08 22:11:01 +0800 | [diff] [blame] | 1390 | io_interrupted = true; |
| 1391 | break; |
| 1392 | } |
| 1393 | |
| 1394 | dcc->next_pos = dc->lstart + dc->len; |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1395 | err = __submit_discard_cmd(sbi, dpolicy, dc, &issued); |
Chao Yu | f4a0eb5 | 2018-07-08 22:11:01 +0800 | [diff] [blame] | 1396 | |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1397 | if (issued >= dpolicy->max_requests) |
Chao Yu | f4a0eb5 | 2018-07-08 22:11:01 +0800 | [diff] [blame] | 1398 | break; |
| 1399 | next: |
| 1400 | node = rb_next(&dc->rb_node); |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 1401 | if (err) |
| 1402 | __remove_discard_cmd(sbi, dc); |
Chao Yu | f4a0eb5 | 2018-07-08 22:11:01 +0800 | [diff] [blame] | 1403 | dc = rb_entry_safe(node, struct discard_cmd, rb_node); |
| 1404 | } |
| 1405 | |
| 1406 | blk_finish_plug(&plug); |
| 1407 | |
| 1408 | if (!dc) |
| 1409 | dcc->next_pos = 0; |
| 1410 | |
| 1411 | mutex_unlock(&dcc->cmd_lock); |
| 1412 | |
| 1413 | if (!issued && io_interrupted) |
| 1414 | issued = -1; |
| 1415 | |
| 1416 | return issued; |
| 1417 | } |
| 1418 | |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1419 | static int __issue_discard_cmd(struct f2fs_sb_info *sbi, |
| 1420 | struct discard_policy *dpolicy) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1421 | { |
| 1422 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 1423 | struct list_head *pend_list; |
| 1424 | struct discard_cmd *dc, *tmp; |
| 1425 | struct blk_plug plug; |
Chao Yu | 735743f | 2018-07-08 22:08:09 +0800 | [diff] [blame] | 1426 | int i, issued = 0; |
Chao Yu | 30da3a4 | 2017-09-12 21:35:12 +0800 | [diff] [blame] | 1427 | bool io_interrupted = false; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1428 | |
Jaegeuk Kim | b842f2d | 2019-01-14 10:42:11 -0800 | [diff] [blame] | 1429 | if (dpolicy->timeout != 0) |
| 1430 | f2fs_update_time(sbi, dpolicy->timeout); |
| 1431 | |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1432 | for (i = MAX_PLIST_NUM - 1; i >= 0; i--) { |
Jaegeuk Kim | b842f2d | 2019-01-14 10:42:11 -0800 | [diff] [blame] | 1433 | if (dpolicy->timeout != 0 && |
| 1434 | f2fs_time_over(sbi, dpolicy->timeout)) |
| 1435 | break; |
| 1436 | |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1437 | if (i + 1 < dpolicy->granularity) |
| 1438 | break; |
Chao Yu | f4a0eb5 | 2018-07-08 22:11:01 +0800 | [diff] [blame] | 1439 | |
| 1440 | if (i < DEFAULT_DISCARD_GRANULARITY && dpolicy->ordered) |
| 1441 | return __issue_discard_cmd_orderly(sbi, dpolicy); |
| 1442 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1443 | pend_list = &dcc->pend_list[i]; |
Chao Yu | 6c46b37 | 2017-10-04 09:08:35 +0800 | [diff] [blame] | 1444 | |
| 1445 | mutex_lock(&dcc->cmd_lock); |
Chao Yu | 37d4ca7 | 2018-01-08 18:48:33 +0800 | [diff] [blame] | 1446 | if (list_empty(pend_list)) |
| 1447 | goto next; |
Chao Yu | be92eee | 2018-06-22 16:06:59 +0800 | [diff] [blame] | 1448 | if (unlikely(dcc->rbtree_check)) |
| 1449 | f2fs_bug_on(sbi, !f2fs_check_rb_tree_consistence(sbi, |
| 1450 | &dcc->root)); |
Chao Yu | 6c46b37 | 2017-10-04 09:08:35 +0800 | [diff] [blame] | 1451 | blk_start_plug(&plug); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1452 | list_for_each_entry_safe(dc, tmp, pend_list, list) { |
| 1453 | f2fs_bug_on(sbi, dc->state != D_PREP); |
| 1454 | |
Chao Yu | 69a5967 | 2017-10-04 09:08:33 +0800 | [diff] [blame] | 1455 | if (dpolicy->io_aware && i < dpolicy->io_aware_gran && |
Sahitya Tummala | feb1b25 | 2018-09-19 14:18:47 +0530 | [diff] [blame] | 1456 | !is_idle(sbi, DISCARD_TIME)) { |
Chao Yu | 30da3a4 | 2017-09-12 21:35:12 +0800 | [diff] [blame] | 1457 | io_interrupted = true; |
Chao Yu | 735743f | 2018-07-08 22:08:09 +0800 | [diff] [blame] | 1458 | break; |
Chao Yu | 30da3a4 | 2017-09-12 21:35:12 +0800 | [diff] [blame] | 1459 | } |
| 1460 | |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1461 | __submit_discard_cmd(sbi, dpolicy, dc, &issued); |
Chao Yu | 735743f | 2018-07-08 22:08:09 +0800 | [diff] [blame] | 1462 | |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 1463 | if (issued >= dpolicy->max_requests) |
Chao Yu | 6c46b37 | 2017-10-04 09:08:35 +0800 | [diff] [blame] | 1464 | break; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1465 | } |
Chao Yu | 6c46b37 | 2017-10-04 09:08:35 +0800 | [diff] [blame] | 1466 | blk_finish_plug(&plug); |
Chao Yu | 37d4ca7 | 2018-01-08 18:48:33 +0800 | [diff] [blame] | 1467 | next: |
Chao Yu | 6c46b37 | 2017-10-04 09:08:35 +0800 | [diff] [blame] | 1468 | mutex_unlock(&dcc->cmd_lock); |
| 1469 | |
Chao Yu | 735743f | 2018-07-08 22:08:09 +0800 | [diff] [blame] | 1470 | if (issued >= dpolicy->max_requests || io_interrupted) |
Chao Yu | 6c46b37 | 2017-10-04 09:08:35 +0800 | [diff] [blame] | 1471 | break; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1472 | } |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1473 | |
Chao Yu | 30da3a4 | 2017-09-12 21:35:12 +0800 | [diff] [blame] | 1474 | if (!issued && io_interrupted) |
| 1475 | issued = -1; |
| 1476 | |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1477 | return issued; |
| 1478 | } |
| 1479 | |
Chao Yu | 1e5305a | 2017-10-04 09:08:37 +0800 | [diff] [blame] | 1480 | static bool __drop_discard_cmd(struct f2fs_sb_info *sbi) |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1481 | { |
| 1482 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 1483 | struct list_head *pend_list; |
| 1484 | struct discard_cmd *dc, *tmp; |
| 1485 | int i; |
Chao Yu | 1e5305a | 2017-10-04 09:08:37 +0800 | [diff] [blame] | 1486 | bool dropped = false; |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1487 | |
| 1488 | mutex_lock(&dcc->cmd_lock); |
| 1489 | for (i = MAX_PLIST_NUM - 1; i >= 0; i--) { |
| 1490 | pend_list = &dcc->pend_list[i]; |
| 1491 | list_for_each_entry_safe(dc, tmp, pend_list, list) { |
| 1492 | f2fs_bug_on(sbi, dc->state != D_PREP); |
| 1493 | __remove_discard_cmd(sbi, dc); |
Chao Yu | 1e5305a | 2017-10-04 09:08:37 +0800 | [diff] [blame] | 1494 | dropped = true; |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1495 | } |
| 1496 | } |
| 1497 | mutex_unlock(&dcc->cmd_lock); |
Chao Yu | 1e5305a | 2017-10-04 09:08:37 +0800 | [diff] [blame] | 1498 | |
| 1499 | return dropped; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1500 | } |
| 1501 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1502 | void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi) |
Chao Yu | 1a3b004 | 2018-01-18 17:23:29 +0800 | [diff] [blame] | 1503 | { |
| 1504 | __drop_discard_cmd(sbi); |
| 1505 | } |
| 1506 | |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 1507 | static unsigned int __wait_one_discard_bio(struct f2fs_sb_info *sbi, |
Chao Yu | a7aa97d | 2017-06-05 18:29:06 +0800 | [diff] [blame] | 1508 | struct discard_cmd *dc) |
| 1509 | { |
| 1510 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 1511 | unsigned int len = 0; |
Chao Yu | a7aa97d | 2017-06-05 18:29:06 +0800 | [diff] [blame] | 1512 | |
| 1513 | wait_for_completion_io(&dc->wait); |
| 1514 | mutex_lock(&dcc->cmd_lock); |
| 1515 | f2fs_bug_on(sbi, dc->state != D_DONE); |
| 1516 | dc->ref--; |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 1517 | if (!dc->ref) { |
| 1518 | if (!dc->error) |
| 1519 | len = dc->len; |
Chao Yu | a7aa97d | 2017-06-05 18:29:06 +0800 | [diff] [blame] | 1520 | __remove_discard_cmd(sbi, dc); |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 1521 | } |
Chao Yu | a7aa97d | 2017-06-05 18:29:06 +0800 | [diff] [blame] | 1522 | mutex_unlock(&dcc->cmd_lock); |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 1523 | |
| 1524 | return len; |
Chao Yu | a7aa97d | 2017-06-05 18:29:06 +0800 | [diff] [blame] | 1525 | } |
| 1526 | |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 1527 | static unsigned int __wait_discard_cmd_range(struct f2fs_sb_info *sbi, |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1528 | struct discard_policy *dpolicy, |
| 1529 | block_t start, block_t end) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1530 | { |
| 1531 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1532 | struct list_head *wait_list = (dpolicy->type == DPOLICY_FSTRIM) ? |
| 1533 | &(dcc->fstrim_list) : &(dcc->wait_list); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1534 | struct discard_cmd *dc, *tmp; |
Chao Yu | 3215e78 | 2017-05-19 23:46:45 +0800 | [diff] [blame] | 1535 | bool need_wait; |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 1536 | unsigned int trimmed = 0; |
Chao Yu | 3215e78 | 2017-05-19 23:46:45 +0800 | [diff] [blame] | 1537 | |
| 1538 | next: |
| 1539 | need_wait = false; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1540 | |
| 1541 | mutex_lock(&dcc->cmd_lock); |
| 1542 | list_for_each_entry_safe(dc, tmp, wait_list, list) { |
Chao Yu | 28e1023 | 2017-10-04 09:08:32 +0800 | [diff] [blame] | 1543 | if (dc->lstart + dc->len <= start || end <= dc->lstart) |
| 1544 | continue; |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1545 | if (dc->len < dpolicy->granularity) |
Chao Yu | 28e1023 | 2017-10-04 09:08:32 +0800 | [diff] [blame] | 1546 | continue; |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1547 | if (dc->state == D_DONE && !dc->ref) { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1548 | wait_for_completion_io(&dc->wait); |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 1549 | if (!dc->error) |
| 1550 | trimmed += dc->len; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1551 | __remove_discard_cmd(sbi, dc); |
Chao Yu | 3215e78 | 2017-05-19 23:46:45 +0800 | [diff] [blame] | 1552 | } else { |
| 1553 | dc->ref++; |
| 1554 | need_wait = true; |
| 1555 | break; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1556 | } |
| 1557 | } |
| 1558 | mutex_unlock(&dcc->cmd_lock); |
Chao Yu | 3215e78 | 2017-05-19 23:46:45 +0800 | [diff] [blame] | 1559 | |
| 1560 | if (need_wait) { |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 1561 | trimmed += __wait_one_discard_bio(sbi, dc); |
Chao Yu | 3215e78 | 2017-05-19 23:46:45 +0800 | [diff] [blame] | 1562 | goto next; |
| 1563 | } |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 1564 | |
| 1565 | return trimmed; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1566 | } |
| 1567 | |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 1568 | static unsigned int __wait_all_discard_cmd(struct f2fs_sb_info *sbi, |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1569 | struct discard_policy *dpolicy) |
Chao Yu | 28e1023 | 2017-10-04 09:08:32 +0800 | [diff] [blame] | 1570 | { |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 1571 | struct discard_policy dp; |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 1572 | unsigned int discard_blks; |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 1573 | |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 1574 | if (dpolicy) |
| 1575 | return __wait_discard_cmd_range(sbi, dpolicy, 0, UINT_MAX); |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 1576 | |
| 1577 | /* wait all */ |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1578 | __init_discard_policy(sbi, &dp, DPOLICY_FSTRIM, 1); |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 1579 | discard_blks = __wait_discard_cmd_range(sbi, &dp, 0, UINT_MAX); |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1580 | __init_discard_policy(sbi, &dp, DPOLICY_UMOUNT, 1); |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 1581 | discard_blks += __wait_discard_cmd_range(sbi, &dp, 0, UINT_MAX); |
| 1582 | |
| 1583 | return discard_blks; |
Chao Yu | 28e1023 | 2017-10-04 09:08:32 +0800 | [diff] [blame] | 1584 | } |
| 1585 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1586 | /* This should be covered by global mutex, &sit_i->sentry_lock */ |
Wei Yongjun | 02cfdab | 2018-01-05 09:41:20 +0000 | [diff] [blame] | 1587 | static void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1588 | { |
| 1589 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 1590 | struct discard_cmd *dc; |
| 1591 | bool need_wait = false; |
| 1592 | |
| 1593 | mutex_lock(&dcc->cmd_lock); |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1594 | dc = (struct discard_cmd *)f2fs_lookup_rb_tree(&dcc->root, |
| 1595 | NULL, blkaddr); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1596 | if (dc) { |
| 1597 | if (dc->state == D_PREP) { |
| 1598 | __punch_discard_cmd(sbi, dc, blkaddr); |
| 1599 | } else { |
| 1600 | dc->ref++; |
| 1601 | need_wait = true; |
| 1602 | } |
| 1603 | } |
| 1604 | mutex_unlock(&dcc->cmd_lock); |
| 1605 | |
Chao Yu | a7aa97d | 2017-06-05 18:29:06 +0800 | [diff] [blame] | 1606 | if (need_wait) |
| 1607 | __wait_one_discard_bio(sbi, dc); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1608 | } |
| 1609 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1610 | void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi) |
Chao Yu | d9d85cc | 2017-06-29 23:17:45 +0800 | [diff] [blame] | 1611 | { |
| 1612 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 1613 | |
| 1614 | if (dcc && dcc->f2fs_issue_discard) { |
| 1615 | struct task_struct *discard_thread = dcc->f2fs_issue_discard; |
| 1616 | |
| 1617 | dcc->f2fs_issue_discard = NULL; |
| 1618 | kthread_stop(discard_thread); |
| 1619 | } |
| 1620 | } |
| 1621 | |
Chao Yu | 28e1023 | 2017-10-04 09:08:32 +0800 | [diff] [blame] | 1622 | /* This comes from f2fs_put_super */ |
Jaegeuk Kim | b842f2d | 2019-01-14 10:42:11 -0800 | [diff] [blame] | 1623 | bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1624 | { |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1625 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1626 | struct discard_policy dpolicy; |
Chao Yu | 1e5305a | 2017-10-04 09:08:37 +0800 | [diff] [blame] | 1627 | bool dropped; |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1628 | |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1629 | __init_discard_policy(sbi, &dpolicy, DPOLICY_UMOUNT, |
| 1630 | dcc->discard_granularity); |
Jaegeuk Kim | b842f2d | 2019-01-14 10:42:11 -0800 | [diff] [blame] | 1631 | dpolicy.timeout = UMOUNT_DISCARD_TIMEOUT; |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1632 | __issue_discard_cmd(sbi, &dpolicy); |
Chao Yu | 1e5305a | 2017-10-04 09:08:37 +0800 | [diff] [blame] | 1633 | dropped = __drop_discard_cmd(sbi); |
Chao Yu | 1e5305a | 2017-10-04 09:08:37 +0800 | [diff] [blame] | 1634 | |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 1635 | /* just to make sure there is no pending discard commands */ |
| 1636 | __wait_all_discard_cmd(sbi, NULL); |
Chao Yu | adfdcf4 | 2018-07-08 22:16:53 +0800 | [diff] [blame] | 1637 | |
| 1638 | f2fs_bug_on(sbi, atomic_read(&dcc->discard_cmd_cnt)); |
Chao Yu | 1e5305a | 2017-10-04 09:08:37 +0800 | [diff] [blame] | 1639 | return dropped; |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1640 | } |
| 1641 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1642 | static int issue_discard_thread(void *data) |
| 1643 | { |
| 1644 | struct f2fs_sb_info *sbi = data; |
| 1645 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 1646 | wait_queue_head_t *q = &dcc->discard_wait_queue; |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1647 | struct discard_policy dpolicy; |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1648 | unsigned int wait_ms = DEF_MIN_DISCARD_ISSUE_TIME; |
| 1649 | int issued; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1650 | |
Jaegeuk Kim | d430af2 | 2017-05-17 10:36:58 -0700 | [diff] [blame] | 1651 | set_freezable(); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1652 | |
Jaegeuk Kim | d430af2 | 2017-05-17 10:36:58 -0700 | [diff] [blame] | 1653 | do { |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1654 | __init_discard_policy(sbi, &dpolicy, DPOLICY_BG, |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1655 | dcc->discard_granularity); |
| 1656 | |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1657 | wait_event_interruptible_timeout(*q, |
| 1658 | kthread_should_stop() || freezing(current) || |
| 1659 | dcc->discard_wake, |
| 1660 | msecs_to_jiffies(wait_ms)); |
Sheng Yong | 5bc68f3 | 2018-05-08 17:51:34 +0800 | [diff] [blame] | 1661 | |
| 1662 | if (dcc->discard_wake) |
| 1663 | dcc->discard_wake = 0; |
| 1664 | |
Jaegeuk Kim | 1f85e0c | 2018-12-13 20:50:51 -0800 | [diff] [blame] | 1665 | /* clean up pending candidates before going to sleep */ |
| 1666 | if (atomic_read(&dcc->queued_discard)) |
| 1667 | __wait_all_discard_cmd(sbi, NULL); |
| 1668 | |
Jaegeuk Kim | d430af2 | 2017-05-17 10:36:58 -0700 | [diff] [blame] | 1669 | if (try_to_freeze()) |
| 1670 | continue; |
Chao Yu | 6393cef | 2018-01-25 18:57:27 +0800 | [diff] [blame] | 1671 | if (f2fs_readonly(sbi->sb)) |
| 1672 | continue; |
Jaegeuk Kim | d430af2 | 2017-05-17 10:36:58 -0700 | [diff] [blame] | 1673 | if (kthread_should_stop()) |
| 1674 | return 0; |
Yunlei He | 198f637 | 2018-04-13 11:08:05 +0800 | [diff] [blame] | 1675 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) { |
| 1676 | wait_ms = dpolicy.max_interval; |
| 1677 | continue; |
| 1678 | } |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1679 | |
Jaegeuk Kim | 0390d83 | 2018-05-07 14:22:40 -0700 | [diff] [blame] | 1680 | if (sbi->gc_mode == GC_URGENT) |
Jaegeuk Kim | 4105909 | 2018-05-29 09:58:42 -0700 | [diff] [blame] | 1681 | __init_discard_policy(sbi, &dpolicy, DPOLICY_FORCE, 1); |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1682 | |
Chao Yu | ce8bd4b | 2017-07-22 08:52:23 +0800 | [diff] [blame] | 1683 | sb_start_intwrite(sbi->sb); |
| 1684 | |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1685 | issued = __issue_discard_cmd(sbi, &dpolicy); |
Yunlei He | 8d74ddc | 2018-04-08 15:11:11 +0800 | [diff] [blame] | 1686 | if (issued > 0) { |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1687 | __wait_all_discard_cmd(sbi, &dpolicy); |
| 1688 | wait_ms = dpolicy.min_interval; |
Yunlei He | 8d74ddc | 2018-04-08 15:11:11 +0800 | [diff] [blame] | 1689 | } else if (issued == -1){ |
Sahitya Tummala | feb1b25 | 2018-09-19 14:18:47 +0530 | [diff] [blame] | 1690 | wait_ms = f2fs_time_to_wait(sbi, DISCARD_TIME); |
| 1691 | if (!wait_ms) |
Sahitya Tummala | c2049e2 | 2018-08-31 15:09:26 +0530 | [diff] [blame] | 1692 | wait_ms = dpolicy.mid_interval; |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1693 | } else { |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 1694 | wait_ms = dpolicy.max_interval; |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1695 | } |
Jaegeuk Kim | d430af2 | 2017-05-17 10:36:58 -0700 | [diff] [blame] | 1696 | |
Chao Yu | ce8bd4b | 2017-07-22 08:52:23 +0800 | [diff] [blame] | 1697 | sb_end_intwrite(sbi->sb); |
| 1698 | |
Jaegeuk Kim | d430af2 | 2017-05-17 10:36:58 -0700 | [diff] [blame] | 1699 | } while (!kthread_should_stop()); |
| 1700 | return 0; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1701 | } |
| 1702 | |
| 1703 | #ifdef CONFIG_BLK_DEV_ZONED |
| 1704 | static int __f2fs_issue_discard_zone(struct f2fs_sb_info *sbi, |
| 1705 | struct block_device *bdev, block_t blkstart, block_t blklen) |
| 1706 | { |
| 1707 | sector_t sector, nr_sects; |
| 1708 | block_t lblkstart = blkstart; |
| 1709 | int devi = 0; |
| 1710 | |
| 1711 | if (sbi->s_ndevs) { |
| 1712 | devi = f2fs_target_device_index(sbi, blkstart); |
| 1713 | blkstart -= FDEV(devi).start_blk; |
| 1714 | } |
| 1715 | |
| 1716 | /* |
| 1717 | * We need to know the type of the zone: for conventional zones, |
| 1718 | * use regular discard if the drive supports it. For sequential |
| 1719 | * zones, reset the zone write pointer. |
| 1720 | */ |
| 1721 | switch (get_blkz_type(sbi, bdev, blkstart)) { |
| 1722 | |
| 1723 | case BLK_ZONE_TYPE_CONVENTIONAL: |
| 1724 | if (!blk_queue_discard(bdev_get_queue(bdev))) |
| 1725 | return 0; |
| 1726 | return __queue_discard_cmd(sbi, bdev, lblkstart, blklen); |
| 1727 | case BLK_ZONE_TYPE_SEQWRITE_REQ: |
| 1728 | case BLK_ZONE_TYPE_SEQWRITE_PREF: |
| 1729 | sector = SECTOR_FROM_BLOCK(blkstart); |
| 1730 | nr_sects = SECTOR_FROM_BLOCK(blklen); |
| 1731 | |
| 1732 | if (sector & (bdev_zone_sectors(bdev) - 1) || |
| 1733 | nr_sects != bdev_zone_sectors(bdev)) { |
| 1734 | f2fs_msg(sbi->sb, KERN_INFO, |
| 1735 | "(%d) %s: Unaligned discard attempted (block %x + %x)", |
| 1736 | devi, sbi->s_ndevs ? FDEV(devi).path: "", |
| 1737 | blkstart, blklen); |
| 1738 | return -EIO; |
| 1739 | } |
| 1740 | trace_f2fs_issue_reset_zone(bdev, blkstart); |
| 1741 | return blkdev_reset_zones(bdev, sector, |
| 1742 | nr_sects, GFP_NOFS); |
| 1743 | default: |
| 1744 | /* Unknown zone type: broken device ? */ |
| 1745 | return -EIO; |
| 1746 | } |
| 1747 | } |
| 1748 | #endif |
| 1749 | |
| 1750 | static int __issue_discard_async(struct f2fs_sb_info *sbi, |
| 1751 | struct block_device *bdev, block_t blkstart, block_t blklen) |
| 1752 | { |
| 1753 | #ifdef CONFIG_BLK_DEV_ZONED |
Chao Yu | 5b11d2b | 2018-10-24 18:34:26 +0800 | [diff] [blame] | 1754 | if (f2fs_sb_has_blkzoned(sbi) && |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1755 | bdev_zoned_model(bdev) != BLK_ZONED_NONE) |
| 1756 | return __f2fs_issue_discard_zone(sbi, bdev, blkstart, blklen); |
| 1757 | #endif |
| 1758 | return __queue_discard_cmd(sbi, bdev, blkstart, blklen); |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 1759 | } |
| 1760 | |
Jaegeuk Kim | 1e87a78 | 2014-04-15 13:57:55 +0900 | [diff] [blame] | 1761 | static int f2fs_issue_discard(struct f2fs_sb_info *sbi, |
Jaegeuk Kim | 3720887 | 2013-11-12 16:55:17 +0900 | [diff] [blame] | 1762 | block_t blkstart, block_t blklen) |
| 1763 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1764 | sector_t start = blkstart, len = 0; |
| 1765 | struct block_device *bdev; |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 1766 | struct seg_entry *se; |
| 1767 | unsigned int offset; |
| 1768 | block_t i; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1769 | int err = 0; |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 1770 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1771 | bdev = f2fs_target_device(sbi, blkstart, NULL); |
| 1772 | |
| 1773 | for (i = blkstart; i < blkstart + blklen; i++, len++) { |
| 1774 | if (i != start) { |
| 1775 | struct block_device *bdev2 = |
| 1776 | f2fs_target_device(sbi, i, NULL); |
| 1777 | |
| 1778 | if (bdev2 != bdev) { |
| 1779 | err = __issue_discard_async(sbi, bdev, |
| 1780 | start, len); |
| 1781 | if (err) |
| 1782 | return err; |
| 1783 | bdev = bdev2; |
| 1784 | start = i; |
| 1785 | len = 0; |
| 1786 | } |
| 1787 | } |
| 1788 | |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 1789 | se = get_seg_entry(sbi, GET_SEGNO(sbi, i)); |
| 1790 | offset = GET_BLKOFF_FROM_SEG0(sbi, i); |
| 1791 | |
| 1792 | if (!f2fs_test_and_set_bit(offset, se->discard_map)) |
| 1793 | sbi->discard_blks--; |
| 1794 | } |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1795 | |
| 1796 | if (len) |
| 1797 | err = __issue_discard_async(sbi, bdev, start, len); |
| 1798 | return err; |
Jaegeuk Kim | 1e87a78 | 2014-04-15 13:57:55 +0900 | [diff] [blame] | 1799 | } |
| 1800 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1801 | static bool add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc, |
| 1802 | bool check_only) |
Jaegeuk Kim | adf4983 | 2014-10-28 22:27:59 -0700 | [diff] [blame] | 1803 | { |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1804 | int entries = SIT_VBLOCK_MAP_SIZE / sizeof(unsigned long); |
| 1805 | int max_blocks = sbi->blocks_per_seg; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 1806 | struct seg_entry *se = get_seg_entry(sbi, cpc->trim_start); |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1807 | unsigned long *cur_map = (unsigned long *)se->cur_valid_map; |
| 1808 | unsigned long *ckpt_map = (unsigned long *)se->ckpt_valid_map; |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 1809 | unsigned long *discard_map = (unsigned long *)se->discard_map; |
Jaegeuk Kim | 60a3b78 | 2015-02-10 16:44:29 -0800 | [diff] [blame] | 1810 | unsigned long *dmap = SIT_I(sbi)->tmp_map; |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1811 | unsigned int start = 0, end = -1; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1812 | bool force = (cpc->reason & CP_DISCARD); |
| 1813 | struct discard_entry *de = NULL; |
| 1814 | struct list_head *head = &SM_I(sbi)->dcc_info->entry_list; |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1815 | int i; |
| 1816 | |
Chao Yu | 12d8e57 | 2018-09-04 03:52:17 +0800 | [diff] [blame] | 1817 | if (se->valid_blocks == max_blocks || !f2fs_hw_support_discard(sbi)) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1818 | return false; |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1819 | |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 1820 | if (!force) { |
Chao Yu | 12d8e57 | 2018-09-04 03:52:17 +0800 | [diff] [blame] | 1821 | if (!f2fs_realtime_discard_enable(sbi) || !se->valid_blocks || |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1822 | SM_I(sbi)->dcc_info->nr_discards >= |
| 1823 | SM_I(sbi)->dcc_info->max_discards) |
| 1824 | return false; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 1825 | } |
| 1826 | |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1827 | /* SIT_VBLOCK_MAP_SIZE should be multiple of sizeof(unsigned long) */ |
| 1828 | for (i = 0; i < entries; i++) |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 1829 | dmap[i] = force ? ~ckpt_map[i] & ~discard_map[i] : |
Jaegeuk Kim | d7bc248 | 2014-12-12 13:53:41 -0800 | [diff] [blame] | 1830 | (cur_map[i] ^ ckpt_map[i]) & ckpt_map[i]; |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1831 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1832 | while (force || SM_I(sbi)->dcc_info->nr_discards <= |
| 1833 | SM_I(sbi)->dcc_info->max_discards) { |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1834 | start = __find_rev_next_bit(dmap, max_blocks, end + 1); |
| 1835 | if (start >= max_blocks) |
| 1836 | break; |
| 1837 | |
| 1838 | end = __find_rev_next_zero_bit(dmap, max_blocks, start + 1); |
Yunlei He | c7b41e1 | 2016-07-07 12:13:33 +0800 | [diff] [blame] | 1839 | if (force && start && end != max_blocks |
| 1840 | && (end - start) < cpc->trim_minlen) |
| 1841 | continue; |
| 1842 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1843 | if (check_only) |
| 1844 | return true; |
| 1845 | |
| 1846 | if (!de) { |
| 1847 | de = f2fs_kmem_cache_alloc(discard_entry_slab, |
| 1848 | GFP_F2FS_ZERO); |
| 1849 | de->start_blkaddr = START_BLOCK(sbi, cpc->trim_start); |
| 1850 | list_add_tail(&de->list, head); |
| 1851 | } |
| 1852 | |
| 1853 | for (i = start; i < end; i++) |
| 1854 | __set_bit_le(i, (void *)de->discard_map); |
| 1855 | |
| 1856 | SM_I(sbi)->dcc_info->nr_discards += end - start; |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1857 | } |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1858 | return false; |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1859 | } |
| 1860 | |
Chao Yu | a2cbd9b | 2018-04-25 17:38:29 +0800 | [diff] [blame] | 1861 | static void release_discard_addr(struct discard_entry *entry) |
| 1862 | { |
| 1863 | list_del(&entry->list); |
| 1864 | kmem_cache_free(discard_entry_slab, entry); |
| 1865 | } |
| 1866 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1867 | void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 1868 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1869 | struct list_head *head = &(SM_I(sbi)->dcc_info->entry_list); |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 1870 | struct discard_entry *entry, *this; |
| 1871 | |
| 1872 | /* drop caches */ |
Chao Yu | a2cbd9b | 2018-04-25 17:38:29 +0800 | [diff] [blame] | 1873 | list_for_each_entry_safe(entry, this, head, list) |
| 1874 | release_discard_addr(entry); |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 1875 | } |
| 1876 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 1877 | /* |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1878 | * Should call f2fs_clear_prefree_segments after checkpoint is done. |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1879 | */ |
| 1880 | static void set_prefree_as_free_segments(struct f2fs_sb_info *sbi) |
| 1881 | { |
| 1882 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
Chao Yu | b65ee14 | 2014-08-04 10:10:07 +0800 | [diff] [blame] | 1883 | unsigned int segno; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1884 | |
| 1885 | mutex_lock(&dirty_i->seglist_lock); |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 1886 | for_each_set_bit(segno, dirty_i->dirty_segmap[PRE], MAIN_SEGS(sbi)) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1887 | __set_test_and_free(sbi, segno); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1888 | mutex_unlock(&dirty_i->seglist_lock); |
| 1889 | } |
| 1890 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1891 | void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi, |
| 1892 | struct cp_control *cpc) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1893 | { |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1894 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 1895 | struct list_head *head = &dcc->entry_list; |
Chao Yu | 2d7b822 | 2014-03-29 11:33:17 +0800 | [diff] [blame] | 1896 | struct discard_entry *entry, *this; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1897 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
Changman Lee | 29e59c1 | 2013-11-11 09:24:37 +0900 | [diff] [blame] | 1898 | unsigned long *prefree_map = dirty_i->dirty_segmap[PRE]; |
Changman Lee | 29e59c1 | 2013-11-11 09:24:37 +0900 | [diff] [blame] | 1899 | unsigned int start = 0, end = -1; |
Jaegeuk Kim | 36abef4 | 2016-06-03 19:29:38 -0700 | [diff] [blame] | 1900 | unsigned int secno, start_segno; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1901 | bool force = (cpc->reason & CP_DISCARD); |
Chao Yu | 7fc4751 | 2018-10-24 18:37:26 +0800 | [diff] [blame] | 1902 | bool need_align = test_opt(sbi, LFS) && __is_large_section(sbi); |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 1903 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1904 | mutex_lock(&dirty_i->seglist_lock); |
Changman Lee | 29e59c1 | 2013-11-11 09:24:37 +0900 | [diff] [blame] | 1905 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1906 | while (1) { |
Changman Lee | 29e59c1 | 2013-11-11 09:24:37 +0900 | [diff] [blame] | 1907 | int i; |
Yunlong Song | fe0e252 | 2018-07-19 20:58:15 +0800 | [diff] [blame] | 1908 | |
| 1909 | if (need_align && end != -1) |
| 1910 | end--; |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 1911 | start = find_next_bit(prefree_map, MAIN_SEGS(sbi), end + 1); |
| 1912 | if (start >= MAIN_SEGS(sbi)) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1913 | break; |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 1914 | end = find_next_zero_bit(prefree_map, MAIN_SEGS(sbi), |
| 1915 | start + 1); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1916 | |
Yunlong Song | fe0e252 | 2018-07-19 20:58:15 +0800 | [diff] [blame] | 1917 | if (need_align) { |
| 1918 | start = rounddown(start, sbi->segs_per_sec); |
| 1919 | end = roundup(end, sbi->segs_per_sec); |
| 1920 | } |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1921 | |
Yunlong Song | fe0e252 | 2018-07-19 20:58:15 +0800 | [diff] [blame] | 1922 | for (i = start; i < end; i++) { |
| 1923 | if (test_and_clear_bit(i, prefree_map)) |
| 1924 | dirty_i->nr_dirty[PRE]--; |
| 1925 | } |
Changman Lee | 29e59c1 | 2013-11-11 09:24:37 +0900 | [diff] [blame] | 1926 | |
Chao Yu | 12d8e57 | 2018-09-04 03:52:17 +0800 | [diff] [blame] | 1927 | if (!f2fs_realtime_discard_enable(sbi)) |
Changman Lee | 29e59c1 | 2013-11-11 09:24:37 +0900 | [diff] [blame] | 1928 | continue; |
| 1929 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1930 | if (force && start >= cpc->trim_start && |
| 1931 | (end - 1) <= cpc->trim_end) |
| 1932 | continue; |
| 1933 | |
Chao Yu | 7fc4751 | 2018-10-24 18:37:26 +0800 | [diff] [blame] | 1934 | if (!test_opt(sbi, LFS) || !__is_large_section(sbi)) { |
Jaegeuk Kim | 36abef4 | 2016-06-03 19:29:38 -0700 | [diff] [blame] | 1935 | f2fs_issue_discard(sbi, START_BLOCK(sbi, start), |
Jaegeuk Kim | 3720887 | 2013-11-12 16:55:17 +0900 | [diff] [blame] | 1936 | (end - start) << sbi->log_blocks_per_seg); |
Jaegeuk Kim | 36abef4 | 2016-06-03 19:29:38 -0700 | [diff] [blame] | 1937 | continue; |
| 1938 | } |
| 1939 | next: |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1940 | secno = GET_SEC_FROM_SEG(sbi, start); |
| 1941 | start_segno = GET_SEG_FROM_SEC(sbi, secno); |
Jaegeuk Kim | 36abef4 | 2016-06-03 19:29:38 -0700 | [diff] [blame] | 1942 | if (!IS_CURSEC(sbi, secno) && |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1943 | !get_valid_blocks(sbi, start, true)) |
Jaegeuk Kim | 36abef4 | 2016-06-03 19:29:38 -0700 | [diff] [blame] | 1944 | f2fs_issue_discard(sbi, START_BLOCK(sbi, start_segno), |
| 1945 | sbi->segs_per_sec << sbi->log_blocks_per_seg); |
| 1946 | |
| 1947 | start = start_segno + sbi->segs_per_sec; |
| 1948 | if (start < end) |
| 1949 | goto next; |
Jaegeuk Kim | 8c53efc3 | 2017-02-27 11:57:11 -0800 | [diff] [blame] | 1950 | else |
| 1951 | end = start - 1; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 1952 | } |
| 1953 | mutex_unlock(&dirty_i->seglist_lock); |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1954 | |
| 1955 | /* send small discards */ |
Chao Yu | 2d7b822 | 2014-03-29 11:33:17 +0800 | [diff] [blame] | 1956 | list_for_each_entry_safe(entry, this, head, list) { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1957 | unsigned int cur_pos = 0, next_pos, len, total_len = 0; |
| 1958 | bool is_valid = test_bit_le(0, entry->discard_map); |
| 1959 | |
| 1960 | find_next: |
| 1961 | if (is_valid) { |
| 1962 | next_pos = find_next_zero_bit_le(entry->discard_map, |
| 1963 | sbi->blocks_per_seg, cur_pos); |
| 1964 | len = next_pos - cur_pos; |
| 1965 | |
Chao Yu | 5b11d2b | 2018-10-24 18:34:26 +0800 | [diff] [blame] | 1966 | if (f2fs_sb_has_blkzoned(sbi) || |
Damien Le Moal | 57a9123 | 2017-05-26 17:04:40 +0900 | [diff] [blame] | 1967 | (force && len < cpc->trim_minlen)) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1968 | goto skip; |
| 1969 | |
| 1970 | f2fs_issue_discard(sbi, entry->start_blkaddr + cur_pos, |
| 1971 | len); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1972 | total_len += len; |
| 1973 | } else { |
| 1974 | next_pos = find_next_bit_le(entry->discard_map, |
| 1975 | sbi->blocks_per_seg, cur_pos); |
| 1976 | } |
Jaegeuk Kim | 836b5a6 | 2015-04-30 22:50:06 -0700 | [diff] [blame] | 1977 | skip: |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1978 | cur_pos = next_pos; |
| 1979 | is_valid = !is_valid; |
| 1980 | |
| 1981 | if (cur_pos < sbi->blocks_per_seg) |
| 1982 | goto find_next; |
| 1983 | |
Chao Yu | a2cbd9b | 2018-04-25 17:38:29 +0800 | [diff] [blame] | 1984 | release_discard_addr(entry); |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 1985 | dcc->nr_discards -= total_len; |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 1986 | } |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 1987 | |
Jaegeuk Kim | 200ad89 | 2017-08-22 21:15:43 -0700 | [diff] [blame] | 1988 | wake_up_discard_thread(sbi, false); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1989 | } |
| 1990 | |
| 1991 | static int create_discard_cmd_control(struct f2fs_sb_info *sbi) |
| 1992 | { |
| 1993 | dev_t dev = sbi->sb->s_bdev->bd_dev; |
| 1994 | struct discard_cmd_control *dcc; |
| 1995 | int err = 0, i; |
| 1996 | |
| 1997 | if (SM_I(sbi)->dcc_info) { |
| 1998 | dcc = SM_I(sbi)->dcc_info; |
| 1999 | goto init_thread; |
| 2000 | } |
| 2001 | |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 2002 | dcc = f2fs_kzalloc(sbi, sizeof(struct discard_cmd_control), GFP_KERNEL); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2003 | if (!dcc) |
| 2004 | return -ENOMEM; |
| 2005 | |
Chao Yu | efe24da | 2017-08-07 23:09:56 +0800 | [diff] [blame] | 2006 | dcc->discard_granularity = DEFAULT_DISCARD_GRANULARITY; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2007 | INIT_LIST_HEAD(&dcc->entry_list); |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 2008 | for (i = 0; i < MAX_PLIST_NUM; i++) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2009 | INIT_LIST_HEAD(&dcc->pend_list[i]); |
| 2010 | INIT_LIST_HEAD(&dcc->wait_list); |
Chao Yu | 28e1023 | 2017-10-04 09:08:32 +0800 | [diff] [blame] | 2011 | INIT_LIST_HEAD(&dcc->fstrim_list); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2012 | mutex_init(&dcc->cmd_lock); |
| 2013 | atomic_set(&dcc->issued_discard, 0); |
Jaegeuk Kim | 2d145882 | 2018-12-13 16:53:57 -0800 | [diff] [blame] | 2014 | atomic_set(&dcc->queued_discard, 0); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2015 | atomic_set(&dcc->discard_cmd_cnt, 0); |
| 2016 | dcc->nr_discards = 0; |
| 2017 | dcc->max_discards = MAIN_SEGS(sbi) << sbi->log_blocks_per_seg; |
| 2018 | dcc->undiscard_blks = 0; |
Chao Yu | f4a0eb5 | 2018-07-08 22:11:01 +0800 | [diff] [blame] | 2019 | dcc->next_pos = 0; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2020 | dcc->root = RB_ROOT; |
Chao Yu | be92eee | 2018-06-22 16:06:59 +0800 | [diff] [blame] | 2021 | dcc->rbtree_check = false; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2022 | |
| 2023 | init_waitqueue_head(&dcc->discard_wait_queue); |
| 2024 | SM_I(sbi)->dcc_info = dcc; |
| 2025 | init_thread: |
| 2026 | dcc->f2fs_issue_discard = kthread_run(issue_discard_thread, sbi, |
| 2027 | "f2fs_discard-%u:%u", MAJOR(dev), MINOR(dev)); |
| 2028 | if (IS_ERR(dcc->f2fs_issue_discard)) { |
| 2029 | err = PTR_ERR(dcc->f2fs_issue_discard); |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 2030 | kvfree(dcc); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2031 | SM_I(sbi)->dcc_info = NULL; |
| 2032 | return err; |
| 2033 | } |
| 2034 | |
| 2035 | return err; |
| 2036 | } |
| 2037 | |
| 2038 | static void destroy_discard_cmd_control(struct f2fs_sb_info *sbi) |
| 2039 | { |
| 2040 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 2041 | |
| 2042 | if (!dcc) |
| 2043 | return; |
| 2044 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2045 | f2fs_stop_discard_thread(sbi); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2046 | |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 2047 | kvfree(dcc); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2048 | SM_I(sbi)->dcc_info = NULL; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2049 | } |
| 2050 | |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 2051 | static bool __mark_sit_entry_dirty(struct f2fs_sb_info *sbi, unsigned int segno) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2052 | { |
| 2053 | struct sit_info *sit_i = SIT_I(sbi); |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 2054 | |
| 2055 | if (!__test_and_set_bit(segno, sit_i->dirty_sentries_bitmap)) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2056 | sit_i->dirty_sentries++; |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 2057 | return false; |
| 2058 | } |
| 2059 | |
| 2060 | return true; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2061 | } |
| 2062 | |
| 2063 | static void __set_sit_entry_type(struct f2fs_sb_info *sbi, int type, |
| 2064 | unsigned int segno, int modified) |
| 2065 | { |
| 2066 | struct seg_entry *se = get_seg_entry(sbi, segno); |
| 2067 | se->type = type; |
| 2068 | if (modified) |
| 2069 | __mark_sit_entry_dirty(sbi, segno); |
| 2070 | } |
| 2071 | |
| 2072 | static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del) |
| 2073 | { |
| 2074 | struct seg_entry *se; |
| 2075 | unsigned int segno, offset; |
| 2076 | long int new_vblocks; |
Yunlong Song | 5ccdd09 | 2017-08-02 21:20:13 +0800 | [diff] [blame] | 2077 | bool exist; |
| 2078 | #ifdef CONFIG_F2FS_CHECK_FS |
| 2079 | bool mir_exist; |
| 2080 | #endif |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2081 | |
| 2082 | segno = GET_SEGNO(sbi, blkaddr); |
| 2083 | |
| 2084 | se = get_seg_entry(sbi, segno); |
| 2085 | new_vblocks = se->valid_blocks + del; |
Jaegeuk Kim | 491c085 | 2014-02-04 13:01:10 +0900 | [diff] [blame] | 2086 | offset = GET_BLKOFF_FROM_SEG0(sbi, blkaddr); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2087 | |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 2088 | f2fs_bug_on(sbi, (new_vblocks >> (sizeof(unsigned short) << 3) || |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2089 | (new_vblocks > sbi->blocks_per_seg))); |
| 2090 | |
| 2091 | se->valid_blocks = new_vblocks; |
Chao Yu | accb406 | 2018-06-04 23:20:17 +0800 | [diff] [blame] | 2092 | se->mtime = get_mtime(sbi, false); |
| 2093 | if (se->mtime > SIT_I(sbi)->max_mtime) |
| 2094 | SIT_I(sbi)->max_mtime = se->mtime; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2095 | |
| 2096 | /* Update valid block bitmap */ |
| 2097 | if (del > 0) { |
Yunlong Song | 5ccdd09 | 2017-08-02 21:20:13 +0800 | [diff] [blame] | 2098 | exist = f2fs_test_and_set_bit(offset, se->cur_valid_map); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2099 | #ifdef CONFIG_F2FS_CHECK_FS |
Yunlong Song | 5ccdd09 | 2017-08-02 21:20:13 +0800 | [diff] [blame] | 2100 | mir_exist = f2fs_test_and_set_bit(offset, |
| 2101 | se->cur_valid_map_mir); |
| 2102 | if (unlikely(exist != mir_exist)) { |
| 2103 | f2fs_msg(sbi->sb, KERN_ERR, "Inconsistent error " |
| 2104 | "when setting bitmap, blk:%u, old bit:%d", |
| 2105 | blkaddr, exist); |
Jaegeuk Kim | 0579676 | 2014-09-02 16:05:00 -0700 | [diff] [blame] | 2106 | f2fs_bug_on(sbi, 1); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2107 | } |
Yunlong Song | 5ccdd09 | 2017-08-02 21:20:13 +0800 | [diff] [blame] | 2108 | #endif |
| 2109 | if (unlikely(exist)) { |
| 2110 | f2fs_msg(sbi->sb, KERN_ERR, |
| 2111 | "Bitmap was wrongly set, blk:%u", blkaddr); |
| 2112 | f2fs_bug_on(sbi, 1); |
Yunlong Song | 5fd827b | 2017-08-02 22:16:54 +0800 | [diff] [blame] | 2113 | se->valid_blocks--; |
| 2114 | del = 0; |
Yunlong Song | 5ccdd09 | 2017-08-02 21:20:13 +0800 | [diff] [blame] | 2115 | } |
| 2116 | |
Chao Yu | 12d8e57 | 2018-09-04 03:52:17 +0800 | [diff] [blame] | 2117 | if (!f2fs_test_and_set_bit(offset, se->discard_map)) |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 2118 | sbi->discard_blks--; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2119 | |
| 2120 | /* don't overwrite by SSR to keep node chain */ |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 2121 | if (IS_NODESEG(se->type) && |
| 2122 | !is_sbi_flag_set(sbi, SBI_CP_DISABLED)) { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2123 | if (!f2fs_test_and_set_bit(offset, se->ckpt_valid_map)) |
| 2124 | se->ckpt_valid_blocks++; |
| 2125 | } |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2126 | } else { |
Yunlong Song | 5ccdd09 | 2017-08-02 21:20:13 +0800 | [diff] [blame] | 2127 | exist = f2fs_test_and_clear_bit(offset, se->cur_valid_map); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2128 | #ifdef CONFIG_F2FS_CHECK_FS |
Yunlong Song | 5ccdd09 | 2017-08-02 21:20:13 +0800 | [diff] [blame] | 2129 | mir_exist = f2fs_test_and_clear_bit(offset, |
| 2130 | se->cur_valid_map_mir); |
| 2131 | if (unlikely(exist != mir_exist)) { |
| 2132 | f2fs_msg(sbi->sb, KERN_ERR, "Inconsistent error " |
| 2133 | "when clearing bitmap, blk:%u, old bit:%d", |
| 2134 | blkaddr, exist); |
Jaegeuk Kim | 0579676 | 2014-09-02 16:05:00 -0700 | [diff] [blame] | 2135 | f2fs_bug_on(sbi, 1); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2136 | } |
Yunlong Song | 5ccdd09 | 2017-08-02 21:20:13 +0800 | [diff] [blame] | 2137 | #endif |
| 2138 | if (unlikely(!exist)) { |
| 2139 | f2fs_msg(sbi->sb, KERN_ERR, |
| 2140 | "Bitmap was wrongly cleared, blk:%u", blkaddr); |
| 2141 | f2fs_bug_on(sbi, 1); |
Yunlong Song | 5fd827b | 2017-08-02 22:16:54 +0800 | [diff] [blame] | 2142 | se->valid_blocks++; |
| 2143 | del = 0; |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 2144 | } else if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { |
| 2145 | /* |
| 2146 | * If checkpoints are off, we must not reuse data that |
| 2147 | * was used in the previous checkpoint. If it was used |
| 2148 | * before, we must track that to know how much space we |
| 2149 | * really have. |
| 2150 | */ |
| 2151 | if (f2fs_test_bit(offset, se->ckpt_valid_map)) |
| 2152 | sbi->unusable_block_count++; |
Yunlong Song | 5ccdd09 | 2017-08-02 21:20:13 +0800 | [diff] [blame] | 2153 | } |
| 2154 | |
Chao Yu | 12d8e57 | 2018-09-04 03:52:17 +0800 | [diff] [blame] | 2155 | if (f2fs_test_and_clear_bit(offset, se->discard_map)) |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 2156 | sbi->discard_blks++; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2157 | } |
| 2158 | if (!f2fs_test_bit(offset, se->ckpt_valid_map)) |
| 2159 | se->ckpt_valid_blocks += del; |
| 2160 | |
| 2161 | __mark_sit_entry_dirty(sbi, segno); |
| 2162 | |
| 2163 | /* update total number of valid blocks to be written in ckpt area */ |
| 2164 | SIT_I(sbi)->written_valid_blocks += del; |
| 2165 | |
Chao Yu | 7fc4751 | 2018-10-24 18:37:26 +0800 | [diff] [blame] | 2166 | if (__is_large_section(sbi)) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2167 | get_sec_entry(sbi, segno)->valid_blocks += del; |
| 2168 | } |
| 2169 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2170 | void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2171 | { |
| 2172 | unsigned int segno = GET_SEGNO(sbi, addr); |
| 2173 | struct sit_info *sit_i = SIT_I(sbi); |
| 2174 | |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 2175 | f2fs_bug_on(sbi, addr == NULL_ADDR); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2176 | if (addr == NEW_ADDR) |
| 2177 | return; |
| 2178 | |
Chao Yu | 08386a6 | 2018-08-14 22:37:25 +0800 | [diff] [blame] | 2179 | invalidate_mapping_pages(META_MAPPING(sbi), addr, addr); |
| 2180 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2181 | /* add it into sit main buffer */ |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 2182 | down_write(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2183 | |
| 2184 | update_sit_entry(sbi, addr, -1); |
| 2185 | |
| 2186 | /* add it into dirty seglist */ |
| 2187 | locate_dirty_segment(sbi, segno); |
| 2188 | |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 2189 | up_write(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2190 | } |
| 2191 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2192 | bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr) |
Jaegeuk Kim | 6e2c64a | 2015-10-07 12:28:41 -0700 | [diff] [blame] | 2193 | { |
| 2194 | struct sit_info *sit_i = SIT_I(sbi); |
| 2195 | unsigned int segno, offset; |
| 2196 | struct seg_entry *se; |
| 2197 | bool is_cp = false; |
| 2198 | |
Chao Yu | d05e871 | 2018-06-05 17:44:11 +0800 | [diff] [blame] | 2199 | if (!is_valid_data_blkaddr(sbi, blkaddr)) |
Jaegeuk Kim | 6e2c64a | 2015-10-07 12:28:41 -0700 | [diff] [blame] | 2200 | return true; |
| 2201 | |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 2202 | down_read(&sit_i->sentry_lock); |
Jaegeuk Kim | 6e2c64a | 2015-10-07 12:28:41 -0700 | [diff] [blame] | 2203 | |
| 2204 | segno = GET_SEGNO(sbi, blkaddr); |
| 2205 | se = get_seg_entry(sbi, segno); |
| 2206 | offset = GET_BLKOFF_FROM_SEG0(sbi, blkaddr); |
| 2207 | |
| 2208 | if (f2fs_test_bit(offset, se->ckpt_valid_map)) |
| 2209 | is_cp = true; |
| 2210 | |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 2211 | up_read(&sit_i->sentry_lock); |
Jaegeuk Kim | 6e2c64a | 2015-10-07 12:28:41 -0700 | [diff] [blame] | 2212 | |
| 2213 | return is_cp; |
| 2214 | } |
| 2215 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 2216 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2217 | * This function should be resided under the curseg_mutex lock |
| 2218 | */ |
| 2219 | static void __add_sum_entry(struct f2fs_sb_info *sbi, int type, |
Haicheng Li | e79efe3 | 2013-06-13 16:59:27 +0800 | [diff] [blame] | 2220 | struct f2fs_summary *sum) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2221 | { |
| 2222 | struct curseg_info *curseg = CURSEG_I(sbi, type); |
| 2223 | void *addr = curseg->sum_blk; |
Haicheng Li | e79efe3 | 2013-06-13 16:59:27 +0800 | [diff] [blame] | 2224 | addr += curseg->next_blkoff * sizeof(struct f2fs_summary); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2225 | memcpy(addr, sum, sizeof(struct f2fs_summary)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2226 | } |
| 2227 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 2228 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2229 | * Calculate the number of current summary pages for writing |
| 2230 | */ |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2231 | int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2232 | { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2233 | int valid_sum_count = 0; |
Fan Li | 9a47938 | 2013-10-29 16:21:47 +0800 | [diff] [blame] | 2234 | int i, sum_in_page; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2235 | |
| 2236 | for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) { |
| 2237 | if (sbi->ckpt->alloc_type[i] == SSR) |
| 2238 | valid_sum_count += sbi->blocks_per_seg; |
Chao Yu | 3fa06d7 | 2014-12-09 14:21:46 +0800 | [diff] [blame] | 2239 | else { |
| 2240 | if (for_ra) |
| 2241 | valid_sum_count += le16_to_cpu( |
| 2242 | F2FS_CKPT(sbi)->cur_data_blkoff[i]); |
| 2243 | else |
| 2244 | valid_sum_count += curseg_blkoff(sbi, i); |
| 2245 | } |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2246 | } |
| 2247 | |
Kirill A. Shutemov | 09cbfea | 2016-04-01 15:29:47 +0300 | [diff] [blame] | 2248 | sum_in_page = (PAGE_SIZE - 2 * SUM_JOURNAL_SIZE - |
Fan Li | 9a47938 | 2013-10-29 16:21:47 +0800 | [diff] [blame] | 2249 | SUM_FOOTER_SIZE) / SUMMARY_SIZE; |
| 2250 | if (valid_sum_count <= sum_in_page) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2251 | return 1; |
Fan Li | 9a47938 | 2013-10-29 16:21:47 +0800 | [diff] [blame] | 2252 | else if ((valid_sum_count - sum_in_page) <= |
Kirill A. Shutemov | 09cbfea | 2016-04-01 15:29:47 +0300 | [diff] [blame] | 2253 | (PAGE_SIZE - SUM_FOOTER_SIZE) / SUMMARY_SIZE) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2254 | return 2; |
| 2255 | return 3; |
| 2256 | } |
| 2257 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 2258 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2259 | * Caller should put this summary page |
| 2260 | */ |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2261 | struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2262 | { |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 2263 | return f2fs_get_meta_page_nofail(sbi, GET_SUM_BLOCK(sbi, segno)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2264 | } |
| 2265 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2266 | void f2fs_update_meta_page(struct f2fs_sb_info *sbi, |
| 2267 | void *src, block_t blk_addr) |
Chao Yu | 381722d | 2015-05-19 17:40:04 +0800 | [diff] [blame] | 2268 | { |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2269 | struct page *page = f2fs_grab_meta_page(sbi, blk_addr); |
Chao Yu | 381722d | 2015-05-19 17:40:04 +0800 | [diff] [blame] | 2270 | |
Chao Yu | 148c518 | 2017-11-02 20:41:02 +0800 | [diff] [blame] | 2271 | memcpy(page_address(page), src, PAGE_SIZE); |
Chao Yu | 381722d | 2015-05-19 17:40:04 +0800 | [diff] [blame] | 2272 | set_page_dirty(page); |
| 2273 | f2fs_put_page(page, 1); |
| 2274 | } |
| 2275 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2276 | static void write_sum_page(struct f2fs_sb_info *sbi, |
| 2277 | struct f2fs_summary_block *sum_blk, block_t blk_addr) |
| 2278 | { |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2279 | f2fs_update_meta_page(sbi, (void *)sum_blk, blk_addr); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2280 | } |
| 2281 | |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 2282 | static void write_current_sum_page(struct f2fs_sb_info *sbi, |
| 2283 | int type, block_t blk_addr) |
| 2284 | { |
| 2285 | struct curseg_info *curseg = CURSEG_I(sbi, type); |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2286 | struct page *page = f2fs_grab_meta_page(sbi, blk_addr); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 2287 | struct f2fs_summary_block *src = curseg->sum_blk; |
| 2288 | struct f2fs_summary_block *dst; |
| 2289 | |
| 2290 | dst = (struct f2fs_summary_block *)page_address(page); |
Chao Yu | 7aee058 | 2018-04-09 20:25:06 +0800 | [diff] [blame] | 2291 | memset(dst, 0, PAGE_SIZE); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 2292 | |
| 2293 | mutex_lock(&curseg->curseg_mutex); |
| 2294 | |
| 2295 | down_read(&curseg->journal_rwsem); |
| 2296 | memcpy(&dst->journal, curseg->journal, SUM_JOURNAL_SIZE); |
| 2297 | up_read(&curseg->journal_rwsem); |
| 2298 | |
| 2299 | memcpy(dst->entries, src->entries, SUM_ENTRY_SIZE); |
| 2300 | memcpy(&dst->footer, &src->footer, SUM_FOOTER_SIZE); |
| 2301 | |
| 2302 | mutex_unlock(&curseg->curseg_mutex); |
| 2303 | |
| 2304 | set_page_dirty(page); |
| 2305 | f2fs_put_page(page, 1); |
| 2306 | } |
| 2307 | |
Jaegeuk Kim | 6037468 | 2013-03-31 13:58:51 +0900 | [diff] [blame] | 2308 | static int is_next_segment_free(struct f2fs_sb_info *sbi, int type) |
| 2309 | { |
| 2310 | struct curseg_info *curseg = CURSEG_I(sbi, type); |
Haicheng Li | 81fb5e8 | 2013-05-14 18:20:28 +0800 | [diff] [blame] | 2311 | unsigned int segno = curseg->segno + 1; |
Jaegeuk Kim | 6037468 | 2013-03-31 13:58:51 +0900 | [diff] [blame] | 2312 | struct free_segmap_info *free_i = FREE_I(sbi); |
| 2313 | |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 2314 | if (segno < MAIN_SEGS(sbi) && segno % sbi->segs_per_sec) |
Haicheng Li | 81fb5e8 | 2013-05-14 18:20:28 +0800 | [diff] [blame] | 2315 | return !test_bit(segno, free_i->free_segmap); |
Jaegeuk Kim | 6037468 | 2013-03-31 13:58:51 +0900 | [diff] [blame] | 2316 | return 0; |
| 2317 | } |
| 2318 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 2319 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2320 | * Find a new segment from the free segments bitmap to right order |
| 2321 | * This function should be returned with success, otherwise BUG |
| 2322 | */ |
| 2323 | static void get_new_segment(struct f2fs_sb_info *sbi, |
| 2324 | unsigned int *newseg, bool new_sec, int dir) |
| 2325 | { |
| 2326 | struct free_segmap_info *free_i = FREE_I(sbi); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2327 | unsigned int segno, secno, zoneno; |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 2328 | unsigned int total_zones = MAIN_SECS(sbi) / sbi->secs_per_zone; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2329 | unsigned int hint = GET_SEC_FROM_SEG(sbi, *newseg); |
| 2330 | unsigned int old_zoneno = GET_ZONE_FROM_SEG(sbi, *newseg); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2331 | unsigned int left_start = hint; |
| 2332 | bool init = true; |
| 2333 | int go_left = 0; |
| 2334 | int i; |
| 2335 | |
Chao Yu | 1a118cc | 2015-02-11 18:20:38 +0800 | [diff] [blame] | 2336 | spin_lock(&free_i->segmap_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2337 | |
| 2338 | if (!new_sec && ((*newseg + 1) % sbi->segs_per_sec)) { |
| 2339 | segno = find_next_zero_bit(free_i->free_segmap, |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2340 | GET_SEG_FROM_SEC(sbi, hint + 1), *newseg + 1); |
| 2341 | if (segno < GET_SEG_FROM_SEC(sbi, hint + 1)) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2342 | goto got_it; |
| 2343 | } |
| 2344 | find_other_zone: |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 2345 | secno = find_next_zero_bit(free_i->free_secmap, MAIN_SECS(sbi), hint); |
| 2346 | if (secno >= MAIN_SECS(sbi)) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2347 | if (dir == ALLOC_RIGHT) { |
| 2348 | secno = find_next_zero_bit(free_i->free_secmap, |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 2349 | MAIN_SECS(sbi), 0); |
| 2350 | f2fs_bug_on(sbi, secno >= MAIN_SECS(sbi)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2351 | } else { |
| 2352 | go_left = 1; |
| 2353 | left_start = hint - 1; |
| 2354 | } |
| 2355 | } |
| 2356 | if (go_left == 0) |
| 2357 | goto skip_left; |
| 2358 | |
| 2359 | while (test_bit(left_start, free_i->free_secmap)) { |
| 2360 | if (left_start > 0) { |
| 2361 | left_start--; |
| 2362 | continue; |
| 2363 | } |
| 2364 | left_start = find_next_zero_bit(free_i->free_secmap, |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 2365 | MAIN_SECS(sbi), 0); |
| 2366 | f2fs_bug_on(sbi, left_start >= MAIN_SECS(sbi)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2367 | break; |
| 2368 | } |
| 2369 | secno = left_start; |
| 2370 | skip_left: |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2371 | segno = GET_SEG_FROM_SEC(sbi, secno); |
| 2372 | zoneno = GET_ZONE_FROM_SEC(sbi, secno); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2373 | |
| 2374 | /* give up on finding another zone */ |
| 2375 | if (!init) |
| 2376 | goto got_it; |
| 2377 | if (sbi->secs_per_zone == 1) |
| 2378 | goto got_it; |
| 2379 | if (zoneno == old_zoneno) |
| 2380 | goto got_it; |
| 2381 | if (dir == ALLOC_LEFT) { |
| 2382 | if (!go_left && zoneno + 1 >= total_zones) |
| 2383 | goto got_it; |
| 2384 | if (go_left && zoneno == 0) |
| 2385 | goto got_it; |
| 2386 | } |
| 2387 | for (i = 0; i < NR_CURSEG_TYPE; i++) |
| 2388 | if (CURSEG_I(sbi, i)->zone == zoneno) |
| 2389 | break; |
| 2390 | |
| 2391 | if (i < NR_CURSEG_TYPE) { |
| 2392 | /* zone is in user, try another */ |
| 2393 | if (go_left) |
| 2394 | hint = zoneno * sbi->secs_per_zone - 1; |
| 2395 | else if (zoneno + 1 >= total_zones) |
| 2396 | hint = 0; |
| 2397 | else |
| 2398 | hint = (zoneno + 1) * sbi->secs_per_zone; |
| 2399 | init = false; |
| 2400 | goto find_other_zone; |
| 2401 | } |
| 2402 | got_it: |
| 2403 | /* set it as dirty segment in free segmap */ |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 2404 | f2fs_bug_on(sbi, test_bit(segno, free_i->free_segmap)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2405 | __set_inuse(sbi, segno); |
| 2406 | *newseg = segno; |
Chao Yu | 1a118cc | 2015-02-11 18:20:38 +0800 | [diff] [blame] | 2407 | spin_unlock(&free_i->segmap_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2408 | } |
| 2409 | |
| 2410 | static void reset_curseg(struct f2fs_sb_info *sbi, int type, int modified) |
| 2411 | { |
| 2412 | struct curseg_info *curseg = CURSEG_I(sbi, type); |
| 2413 | struct summary_footer *sum_footer; |
| 2414 | |
| 2415 | curseg->segno = curseg->next_segno; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2416 | curseg->zone = GET_ZONE_FROM_SEG(sbi, curseg->segno); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2417 | curseg->next_blkoff = 0; |
| 2418 | curseg->next_segno = NULL_SEGNO; |
| 2419 | |
| 2420 | sum_footer = &(curseg->sum_blk->footer); |
| 2421 | memset(sum_footer, 0, sizeof(struct summary_footer)); |
| 2422 | if (IS_DATASEG(type)) |
| 2423 | SET_SUM_TYPE(sum_footer, SUM_TYPE_DATA); |
| 2424 | if (IS_NODESEG(type)) |
| 2425 | SET_SUM_TYPE(sum_footer, SUM_TYPE_NODE); |
| 2426 | __set_sit_entry_type(sbi, type, curseg->segno, modified); |
| 2427 | } |
| 2428 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2429 | static unsigned int __get_next_segno(struct f2fs_sb_info *sbi, int type) |
| 2430 | { |
| 2431 | /* if segs_per_sec is large than 1, we need to keep original policy. */ |
Chao Yu | 7fc4751 | 2018-10-24 18:37:26 +0800 | [diff] [blame] | 2432 | if (__is_large_section(sbi)) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2433 | return CURSEG_I(sbi, type)->segno; |
| 2434 | |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 2435 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) |
| 2436 | return 0; |
| 2437 | |
Yunlong Song | aae506a | 2018-01-29 11:37:45 +0800 | [diff] [blame] | 2438 | if (test_opt(sbi, NOHEAP) && |
| 2439 | (type == CURSEG_HOT_DATA || IS_NODESEG(type))) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2440 | return 0; |
| 2441 | |
| 2442 | if (SIT_I(sbi)->last_victim[ALLOC_NEXT]) |
| 2443 | return SIT_I(sbi)->last_victim[ALLOC_NEXT]; |
Jaegeuk Kim | 78c1fc2 | 2018-02-18 08:50:49 -0800 | [diff] [blame] | 2444 | |
| 2445 | /* find segments from 0 to reuse freed segments */ |
Chao Yu | e9a50e6 | 2018-03-08 14:22:56 +0800 | [diff] [blame] | 2446 | if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE) |
Jaegeuk Kim | 78c1fc2 | 2018-02-18 08:50:49 -0800 | [diff] [blame] | 2447 | return 0; |
| 2448 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2449 | return CURSEG_I(sbi, type)->segno; |
| 2450 | } |
| 2451 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 2452 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2453 | * Allocate a current working segment. |
| 2454 | * This function always allocates a free segment in LFS manner. |
| 2455 | */ |
| 2456 | static void new_curseg(struct f2fs_sb_info *sbi, int type, bool new_sec) |
| 2457 | { |
| 2458 | struct curseg_info *curseg = CURSEG_I(sbi, type); |
| 2459 | unsigned int segno = curseg->segno; |
| 2460 | int dir = ALLOC_LEFT; |
| 2461 | |
| 2462 | write_sum_page(sbi, curseg->sum_blk, |
Haicheng Li | 81fb5e8 | 2013-05-14 18:20:28 +0800 | [diff] [blame] | 2463 | GET_SUM_BLOCK(sbi, segno)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2464 | if (type == CURSEG_WARM_DATA || type == CURSEG_COLD_DATA) |
| 2465 | dir = ALLOC_RIGHT; |
| 2466 | |
| 2467 | if (test_opt(sbi, NOHEAP)) |
| 2468 | dir = ALLOC_RIGHT; |
| 2469 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2470 | segno = __get_next_segno(sbi, type); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2471 | get_new_segment(sbi, &segno, new_sec, dir); |
| 2472 | curseg->next_segno = segno; |
| 2473 | reset_curseg(sbi, type, 1); |
| 2474 | curseg->alloc_type = LFS; |
| 2475 | } |
| 2476 | |
| 2477 | static void __next_free_blkoff(struct f2fs_sb_info *sbi, |
| 2478 | struct curseg_info *seg, block_t start) |
| 2479 | { |
| 2480 | struct seg_entry *se = get_seg_entry(sbi, seg->segno); |
Changman Lee | e81c93c | 2013-11-15 13:21:16 +0900 | [diff] [blame] | 2481 | int entries = SIT_VBLOCK_MAP_SIZE / sizeof(unsigned long); |
Jaegeuk Kim | 60a3b78 | 2015-02-10 16:44:29 -0800 | [diff] [blame] | 2482 | unsigned long *target_map = SIT_I(sbi)->tmp_map; |
Changman Lee | e81c93c | 2013-11-15 13:21:16 +0900 | [diff] [blame] | 2483 | unsigned long *ckpt_map = (unsigned long *)se->ckpt_valid_map; |
| 2484 | unsigned long *cur_map = (unsigned long *)se->cur_valid_map; |
| 2485 | int i, pos; |
| 2486 | |
| 2487 | for (i = 0; i < entries; i++) |
| 2488 | target_map[i] = ckpt_map[i] | cur_map[i]; |
| 2489 | |
| 2490 | pos = __find_rev_next_zero_bit(target_map, sbi->blocks_per_seg, start); |
| 2491 | |
| 2492 | seg->next_blkoff = pos; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2493 | } |
| 2494 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 2495 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2496 | * If a segment is written by LFS manner, next block offset is just obtained |
| 2497 | * by increasing the current block offset. However, if a segment is written by |
| 2498 | * SSR manner, next block offset obtained by calling __next_free_blkoff |
| 2499 | */ |
| 2500 | static void __refresh_next_blkoff(struct f2fs_sb_info *sbi, |
| 2501 | struct curseg_info *seg) |
| 2502 | { |
| 2503 | if (seg->alloc_type == SSR) |
| 2504 | __next_free_blkoff(sbi, seg, seg->next_blkoff + 1); |
| 2505 | else |
| 2506 | seg->next_blkoff++; |
| 2507 | } |
| 2508 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 2509 | /* |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 2510 | * This function always allocates a used segment(from dirty seglist) by SSR |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2511 | * manner, so it should recover the existing segment information of valid blocks |
| 2512 | */ |
Chao Yu | a69c974 | 2017-08-30 18:04:48 +0800 | [diff] [blame] | 2513 | static void change_curseg(struct f2fs_sb_info *sbi, int type) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2514 | { |
| 2515 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
| 2516 | struct curseg_info *curseg = CURSEG_I(sbi, type); |
| 2517 | unsigned int new_segno = curseg->next_segno; |
| 2518 | struct f2fs_summary_block *sum_node; |
| 2519 | struct page *sum_page; |
| 2520 | |
| 2521 | write_sum_page(sbi, curseg->sum_blk, |
| 2522 | GET_SUM_BLOCK(sbi, curseg->segno)); |
| 2523 | __set_test_and_inuse(sbi, new_segno); |
| 2524 | |
| 2525 | mutex_lock(&dirty_i->seglist_lock); |
| 2526 | __remove_dirty_segment(sbi, new_segno, PRE); |
| 2527 | __remove_dirty_segment(sbi, new_segno, DIRTY); |
| 2528 | mutex_unlock(&dirty_i->seglist_lock); |
| 2529 | |
| 2530 | reset_curseg(sbi, type, 1); |
| 2531 | curseg->alloc_type = SSR; |
| 2532 | __next_free_blkoff(sbi, curseg, 0); |
| 2533 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2534 | sum_page = f2fs_get_sum_page(sbi, new_segno); |
Jaegeuk Kim | 4474e2f | 2018-09-17 17:36:06 -0700 | [diff] [blame] | 2535 | f2fs_bug_on(sbi, IS_ERR(sum_page)); |
Chao Yu | a69c974 | 2017-08-30 18:04:48 +0800 | [diff] [blame] | 2536 | sum_node = (struct f2fs_summary_block *)page_address(sum_page); |
| 2537 | memcpy(curseg->sum_blk, sum_node, SUM_ENTRY_SIZE); |
| 2538 | f2fs_put_page(sum_page, 1); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2539 | } |
| 2540 | |
Jaegeuk Kim | 4372752 | 2013-02-04 15:11:17 +0900 | [diff] [blame] | 2541 | static int get_ssr_segment(struct f2fs_sb_info *sbi, int type) |
| 2542 | { |
| 2543 | struct curseg_info *curseg = CURSEG_I(sbi, type); |
| 2544 | const struct victim_selection *v_ops = DIRTY_I(sbi)->v_ops; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2545 | unsigned segno = NULL_SEGNO; |
| 2546 | int i, cnt; |
| 2547 | bool reversed = false; |
Jaegeuk Kim | 4372752 | 2013-02-04 15:11:17 +0900 | [diff] [blame] | 2548 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2549 | /* f2fs_need_SSR() already forces to do this */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2550 | if (v_ops->get_victim(sbi, &segno, BG_GC, type, SSR)) { |
| 2551 | curseg->next_segno = segno; |
| 2552 | return 1; |
| 2553 | } |
Jaegeuk Kim | 4372752 | 2013-02-04 15:11:17 +0900 | [diff] [blame] | 2554 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2555 | /* For node segments, let's do SSR more intensively */ |
| 2556 | if (IS_NODESEG(type)) { |
| 2557 | if (type >= CURSEG_WARM_NODE) { |
| 2558 | reversed = true; |
| 2559 | i = CURSEG_COLD_NODE; |
| 2560 | } else { |
| 2561 | i = CURSEG_HOT_NODE; |
| 2562 | } |
| 2563 | cnt = NR_CURSEG_NODE_TYPE; |
| 2564 | } else { |
| 2565 | if (type >= CURSEG_WARM_DATA) { |
| 2566 | reversed = true; |
| 2567 | i = CURSEG_COLD_DATA; |
| 2568 | } else { |
| 2569 | i = CURSEG_HOT_DATA; |
| 2570 | } |
| 2571 | cnt = NR_CURSEG_DATA_TYPE; |
| 2572 | } |
| 2573 | |
| 2574 | for (; cnt-- > 0; reversed ? i-- : i++) { |
| 2575 | if (i == type) |
| 2576 | continue; |
| 2577 | if (v_ops->get_victim(sbi, &segno, BG_GC, i, SSR)) { |
| 2578 | curseg->next_segno = segno; |
Jaegeuk Kim | 4372752 | 2013-02-04 15:11:17 +0900 | [diff] [blame] | 2579 | return 1; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2580 | } |
| 2581 | } |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 2582 | |
| 2583 | /* find valid_blocks=0 in dirty list */ |
| 2584 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { |
| 2585 | segno = get_free_segment(sbi); |
| 2586 | if (segno != NULL_SEGNO) { |
| 2587 | curseg->next_segno = segno; |
| 2588 | return 1; |
| 2589 | } |
| 2590 | } |
Jaegeuk Kim | 4372752 | 2013-02-04 15:11:17 +0900 | [diff] [blame] | 2591 | return 0; |
| 2592 | } |
| 2593 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2594 | /* |
| 2595 | * flush out current segment and replace it with new segment |
| 2596 | * This function should be returned with success, otherwise BUG |
| 2597 | */ |
| 2598 | static void allocate_segment_by_default(struct f2fs_sb_info *sbi, |
| 2599 | int type, bool force) |
| 2600 | { |
| 2601 | struct curseg_info *curseg = CURSEG_I(sbi, type); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2602 | |
Gu Zheng | 7b40527 | 2013-08-19 09:41:15 +0800 | [diff] [blame] | 2603 | if (force) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2604 | new_curseg(sbi, type, true); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2605 | else if (!is_set_ckpt_flags(sbi, CP_CRC_RECOVERY_FLAG) && |
| 2606 | type == CURSEG_WARM_NODE) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2607 | new_curseg(sbi, type, false); |
Daniel Rosenberg | f22f93a | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 2608 | else if (curseg->alloc_type == LFS && is_next_segment_free(sbi, type) && |
| 2609 | likely(!is_sbi_flag_set(sbi, SBI_CP_DISABLED))) |
Jaegeuk Kim | 6037468 | 2013-03-31 13:58:51 +0900 | [diff] [blame] | 2610 | new_curseg(sbi, type, false); |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2611 | else if (f2fs_need_SSR(sbi) && get_ssr_segment(sbi, type)) |
Chao Yu | a69c974 | 2017-08-30 18:04:48 +0800 | [diff] [blame] | 2612 | change_curseg(sbi, type); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2613 | else |
| 2614 | new_curseg(sbi, type, false); |
Jaegeuk Kim | dcdfff6 | 2013-10-22 20:56:10 +0900 | [diff] [blame] | 2615 | |
| 2616 | stat_inc_seg_type(sbi, curseg); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2617 | } |
| 2618 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2619 | void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2620 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2621 | struct curseg_info *curseg; |
| 2622 | unsigned int old_segno; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2623 | int i; |
| 2624 | |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 2625 | down_write(&SIT_I(sbi)->sentry_lock); |
| 2626 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2627 | for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) { |
| 2628 | curseg = CURSEG_I(sbi, i); |
| 2629 | old_segno = curseg->segno; |
| 2630 | SIT_I(sbi)->s_ops->allocate_segment(sbi, i, true); |
| 2631 | locate_dirty_segment(sbi, old_segno); |
| 2632 | } |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 2633 | |
| 2634 | up_write(&SIT_I(sbi)->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2635 | } |
| 2636 | |
| 2637 | static const struct segment_allocation default_salloc_ops = { |
| 2638 | .allocate_segment = allocate_segment_by_default, |
| 2639 | }; |
| 2640 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2641 | bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi, |
| 2642 | struct cp_control *cpc) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2643 | { |
| 2644 | __u64 trim_start = cpc->trim_start; |
| 2645 | bool has_candidate = false; |
| 2646 | |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 2647 | down_write(&SIT_I(sbi)->sentry_lock); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2648 | for (; cpc->trim_start <= cpc->trim_end; cpc->trim_start++) { |
| 2649 | if (add_discard_addrs(sbi, cpc, true)) { |
| 2650 | has_candidate = true; |
| 2651 | break; |
| 2652 | } |
| 2653 | } |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 2654 | up_write(&SIT_I(sbi)->sentry_lock); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2655 | |
| 2656 | cpc->trim_start = trim_start; |
| 2657 | return has_candidate; |
| 2658 | } |
| 2659 | |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 2660 | static unsigned int __issue_discard_cmd_range(struct f2fs_sb_info *sbi, |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2661 | struct discard_policy *dpolicy, |
| 2662 | unsigned int start, unsigned int end) |
| 2663 | { |
| 2664 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
| 2665 | struct discard_cmd *prev_dc = NULL, *next_dc = NULL; |
| 2666 | struct rb_node **insert_p = NULL, *insert_parent = NULL; |
| 2667 | struct discard_cmd *dc; |
| 2668 | struct blk_plug plug; |
| 2669 | int issued; |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 2670 | unsigned int trimmed = 0; |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2671 | |
| 2672 | next: |
| 2673 | issued = 0; |
| 2674 | |
| 2675 | mutex_lock(&dcc->cmd_lock); |
Chao Yu | be92eee | 2018-06-22 16:06:59 +0800 | [diff] [blame] | 2676 | if (unlikely(dcc->rbtree_check)) |
| 2677 | f2fs_bug_on(sbi, !f2fs_check_rb_tree_consistence(sbi, |
| 2678 | &dcc->root)); |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2679 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2680 | dc = (struct discard_cmd *)f2fs_lookup_rb_tree_ret(&dcc->root, |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2681 | NULL, start, |
| 2682 | (struct rb_entry **)&prev_dc, |
| 2683 | (struct rb_entry **)&next_dc, |
| 2684 | &insert_p, &insert_parent, true); |
| 2685 | if (!dc) |
| 2686 | dc = next_dc; |
| 2687 | |
| 2688 | blk_start_plug(&plug); |
| 2689 | |
| 2690 | while (dc && dc->lstart <= end) { |
| 2691 | struct rb_node *node; |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 2692 | int err = 0; |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2693 | |
| 2694 | if (dc->len < dpolicy->granularity) |
| 2695 | goto skip; |
| 2696 | |
| 2697 | if (dc->state != D_PREP) { |
| 2698 | list_move_tail(&dc->list, &dcc->fstrim_list); |
| 2699 | goto skip; |
| 2700 | } |
| 2701 | |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 2702 | err = __submit_discard_cmd(sbi, dpolicy, dc, &issued); |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2703 | |
Chao Yu | c813f5a | 2018-08-06 22:43:50 +0800 | [diff] [blame] | 2704 | if (issued >= dpolicy->max_requests) { |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2705 | start = dc->lstart + dc->len; |
| 2706 | |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 2707 | if (err) |
| 2708 | __remove_discard_cmd(sbi, dc); |
| 2709 | |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2710 | blk_finish_plug(&plug); |
| 2711 | mutex_unlock(&dcc->cmd_lock); |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 2712 | trimmed += __wait_all_discard_cmd(sbi, NULL); |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2713 | congestion_wait(BLK_RW_ASYNC, HZ/50); |
| 2714 | goto next; |
| 2715 | } |
| 2716 | skip: |
| 2717 | node = rb_next(&dc->rb_node); |
Chao Yu | b096edf | 2018-08-08 10:14:55 +0800 | [diff] [blame] | 2718 | if (err) |
| 2719 | __remove_discard_cmd(sbi, dc); |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2720 | dc = rb_entry_safe(node, struct discard_cmd, rb_node); |
| 2721 | |
| 2722 | if (fatal_signal_pending(current)) |
| 2723 | break; |
| 2724 | } |
| 2725 | |
| 2726 | blk_finish_plug(&plug); |
| 2727 | mutex_unlock(&dcc->cmd_lock); |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 2728 | |
| 2729 | return trimmed; |
Jaegeuk Kim | 8f6a2e7 | 2018-05-24 13:57:26 -0700 | [diff] [blame] | 2730 | } |
| 2731 | |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2732 | int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range) |
| 2733 | { |
Jaegeuk Kim | f7ef9b8 | 2015-02-09 12:02:44 -0800 | [diff] [blame] | 2734 | __u64 start = F2FS_BYTES_TO_BLK(range->start); |
| 2735 | __u64 end = start + F2FS_BYTES_TO_BLK(range->len) - 1; |
Chao Yu | 0357a0f | 2018-04-09 10:25:23 +0800 | [diff] [blame] | 2736 | unsigned int start_segno, end_segno; |
Chao Yu | 28e1023 | 2017-10-04 09:08:32 +0800 | [diff] [blame] | 2737 | block_t start_block, end_block; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2738 | struct cp_control cpc; |
Chao Yu | daf437d | 2017-10-04 09:08:34 +0800 | [diff] [blame] | 2739 | struct discard_policy dpolicy; |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 2740 | unsigned long long trimmed = 0; |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 2741 | int err = 0; |
Chao Yu | 7fc4751 | 2018-10-24 18:37:26 +0800 | [diff] [blame] | 2742 | bool need_align = test_opt(sbi, LFS) && __is_large_section(sbi); |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2743 | |
Jaegeuk Kim | 836b5a6 | 2015-04-30 22:50:06 -0700 | [diff] [blame] | 2744 | if (start >= MAX_BLKADDR(sbi) || range->len < sbi->blocksize) |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2745 | return -EINVAL; |
| 2746 | |
Chao Yu | 5d2300d | 2018-08-08 17:36:29 +0800 | [diff] [blame] | 2747 | if (end < MAIN_BLKADDR(sbi)) |
| 2748 | goto out; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2749 | |
Yunlei He | ed214a1 | 2016-09-01 10:14:39 +0800 | [diff] [blame] | 2750 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) { |
| 2751 | f2fs_msg(sbi->sb, KERN_WARNING, |
| 2752 | "Found FS corruption, run fsck to fix."); |
Chao Yu | aa8b4b9 | 2018-04-08 20:39:03 +0800 | [diff] [blame] | 2753 | return -EIO; |
Yunlei He | ed214a1 | 2016-09-01 10:14:39 +0800 | [diff] [blame] | 2754 | } |
| 2755 | |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2756 | /* start/end segment number in main_area */ |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 2757 | start_segno = (start <= MAIN_BLKADDR(sbi)) ? 0 : GET_SEGNO(sbi, start); |
| 2758 | end_segno = (end >= MAX_BLKADDR(sbi)) ? MAIN_SEGS(sbi) - 1 : |
| 2759 | GET_SEGNO(sbi, end); |
Yunlong Song | fe0e252 | 2018-07-19 20:58:15 +0800 | [diff] [blame] | 2760 | if (need_align) { |
| 2761 | start_segno = rounddown(start_segno, sbi->segs_per_sec); |
| 2762 | end_segno = roundup(end_segno + 1, sbi->segs_per_sec) - 1; |
| 2763 | } |
Chao Yu | 28e1023 | 2017-10-04 09:08:32 +0800 | [diff] [blame] | 2764 | |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2765 | cpc.reason = CP_DISCARD; |
Jaegeuk Kim | 836b5a6 | 2015-04-30 22:50:06 -0700 | [diff] [blame] | 2766 | cpc.trim_minlen = max_t(__u64, 1, F2FS_BYTES_TO_BLK(range->minlen)); |
Chao Yu | 0357a0f | 2018-04-09 10:25:23 +0800 | [diff] [blame] | 2767 | cpc.trim_start = start_segno; |
| 2768 | cpc.trim_end = end_segno; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2769 | |
Chao Yu | 0357a0f | 2018-04-09 10:25:23 +0800 | [diff] [blame] | 2770 | if (sbi->discard_blks == 0) |
| 2771 | goto out; |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 2772 | |
Chao Yu | 0357a0f | 2018-04-09 10:25:23 +0800 | [diff] [blame] | 2773 | mutex_lock(&sbi->gc_mutex); |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2774 | err = f2fs_write_checkpoint(sbi, &cpc); |
Chao Yu | 0357a0f | 2018-04-09 10:25:23 +0800 | [diff] [blame] | 2775 | mutex_unlock(&sbi->gc_mutex); |
| 2776 | if (err) |
| 2777 | goto out; |
Chao Yu | 28e1023 | 2017-10-04 09:08:32 +0800 | [diff] [blame] | 2778 | |
Jaegeuk Kim | 3ccf9ee | 2018-05-31 10:20:48 -0700 | [diff] [blame] | 2779 | /* |
| 2780 | * We filed discard candidates, but actually we don't need to wait for |
| 2781 | * all of them, since they'll be issued in idle time along with runtime |
| 2782 | * discard option. User configuration looks like using runtime discard |
| 2783 | * or periodic fstrim instead of it. |
| 2784 | */ |
Chao Yu | 12d8e57 | 2018-09-04 03:52:17 +0800 | [diff] [blame] | 2785 | if (f2fs_realtime_discard_enable(sbi)) |
Jaegeuk Kim | fa83391 | 2018-06-20 21:27:21 -0700 | [diff] [blame] | 2786 | goto out; |
| 2787 | |
| 2788 | start_block = START_BLOCK(sbi, start_segno); |
| 2789 | end_block = START_BLOCK(sbi, end_segno + 1); |
| 2790 | |
| 2791 | __init_discard_policy(sbi, &dpolicy, DPOLICY_FSTRIM, cpc.trim_minlen); |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 2792 | trimmed = __issue_discard_cmd_range(sbi, &dpolicy, |
| 2793 | start_block, end_block); |
Jaegeuk Kim | fa83391 | 2018-06-20 21:27:21 -0700 | [diff] [blame] | 2794 | |
Chao Yu | 27d312b | 2018-06-25 20:33:24 +0800 | [diff] [blame] | 2795 | trimmed += __wait_discard_cmd_range(sbi, &dpolicy, |
Chao Yu | ab30204 | 2017-10-28 16:52:32 +0800 | [diff] [blame] | 2796 | start_block, end_block); |
Chao Yu | 0357a0f | 2018-04-09 10:25:23 +0800 | [diff] [blame] | 2797 | out: |
Chao Yu | c3aff6f | 2018-08-05 23:09:00 +0800 | [diff] [blame] | 2798 | if (!err) |
| 2799 | range->len = F2FS_BLK_TO_BYTES(trimmed); |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 2800 | return err; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2801 | } |
| 2802 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2803 | static bool __has_curseg_space(struct f2fs_sb_info *sbi, int type) |
| 2804 | { |
| 2805 | struct curseg_info *curseg = CURSEG_I(sbi, type); |
| 2806 | if (curseg->next_blkoff < sbi->blocks_per_seg) |
| 2807 | return true; |
| 2808 | return false; |
| 2809 | } |
| 2810 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2811 | int f2fs_rw_hint_to_seg_type(enum rw_hint hint) |
Hyunchul Lee | b1823df | 2017-11-09 14:51:27 +0900 | [diff] [blame] | 2812 | { |
| 2813 | switch (hint) { |
| 2814 | case WRITE_LIFE_SHORT: |
| 2815 | return CURSEG_HOT_DATA; |
| 2816 | case WRITE_LIFE_EXTREME: |
| 2817 | return CURSEG_COLD_DATA; |
| 2818 | default: |
| 2819 | return CURSEG_WARM_DATA; |
| 2820 | } |
| 2821 | } |
Hyunchul Lee | b1823df | 2017-11-09 14:51:27 +0900 | [diff] [blame] | 2822 | |
Hyunchul Lee | bcdc571 | 2018-01-31 11:36:57 +0900 | [diff] [blame] | 2823 | /* This returns write hints for each segment type. This hints will be |
| 2824 | * passed down to block layer. There are mapping tables which depend on |
| 2825 | * the mount option 'whint_mode'. |
| 2826 | * |
| 2827 | * 1) whint_mode=off. F2FS only passes down WRITE_LIFE_NOT_SET. |
| 2828 | * |
| 2829 | * 2) whint_mode=user-based. F2FS tries to pass down hints given by users. |
| 2830 | * |
| 2831 | * User F2FS Block |
| 2832 | * ---- ---- ----- |
| 2833 | * META WRITE_LIFE_NOT_SET |
| 2834 | * HOT_NODE " |
| 2835 | * WARM_NODE " |
| 2836 | * COLD_NODE " |
| 2837 | * ioctl(COLD) COLD_DATA WRITE_LIFE_EXTREME |
| 2838 | * extension list " " |
| 2839 | * |
| 2840 | * -- buffered io |
| 2841 | * WRITE_LIFE_EXTREME COLD_DATA WRITE_LIFE_EXTREME |
| 2842 | * WRITE_LIFE_SHORT HOT_DATA WRITE_LIFE_SHORT |
| 2843 | * WRITE_LIFE_NOT_SET WARM_DATA WRITE_LIFE_NOT_SET |
| 2844 | * WRITE_LIFE_NONE " " |
| 2845 | * WRITE_LIFE_MEDIUM " " |
| 2846 | * WRITE_LIFE_LONG " " |
| 2847 | * |
| 2848 | * -- direct io |
| 2849 | * WRITE_LIFE_EXTREME COLD_DATA WRITE_LIFE_EXTREME |
| 2850 | * WRITE_LIFE_SHORT HOT_DATA WRITE_LIFE_SHORT |
| 2851 | * WRITE_LIFE_NOT_SET WARM_DATA WRITE_LIFE_NOT_SET |
| 2852 | * WRITE_LIFE_NONE " WRITE_LIFE_NONE |
| 2853 | * WRITE_LIFE_MEDIUM " WRITE_LIFE_MEDIUM |
| 2854 | * WRITE_LIFE_LONG " WRITE_LIFE_LONG |
| 2855 | * |
Hyunchul Lee | 87c1806 | 2018-01-31 11:36:58 +0900 | [diff] [blame] | 2856 | * 3) whint_mode=fs-based. F2FS passes down hints with its policy. |
| 2857 | * |
| 2858 | * User F2FS Block |
| 2859 | * ---- ---- ----- |
| 2860 | * META WRITE_LIFE_MEDIUM; |
| 2861 | * HOT_NODE WRITE_LIFE_NOT_SET |
| 2862 | * WARM_NODE " |
| 2863 | * COLD_NODE WRITE_LIFE_NONE |
| 2864 | * ioctl(COLD) COLD_DATA WRITE_LIFE_EXTREME |
| 2865 | * extension list " " |
| 2866 | * |
| 2867 | * -- buffered io |
| 2868 | * WRITE_LIFE_EXTREME COLD_DATA WRITE_LIFE_EXTREME |
| 2869 | * WRITE_LIFE_SHORT HOT_DATA WRITE_LIFE_SHORT |
| 2870 | * WRITE_LIFE_NOT_SET WARM_DATA WRITE_LIFE_LONG |
| 2871 | * WRITE_LIFE_NONE " " |
| 2872 | * WRITE_LIFE_MEDIUM " " |
| 2873 | * WRITE_LIFE_LONG " " |
| 2874 | * |
| 2875 | * -- direct io |
| 2876 | * WRITE_LIFE_EXTREME COLD_DATA WRITE_LIFE_EXTREME |
| 2877 | * WRITE_LIFE_SHORT HOT_DATA WRITE_LIFE_SHORT |
| 2878 | * WRITE_LIFE_NOT_SET WARM_DATA WRITE_LIFE_NOT_SET |
| 2879 | * WRITE_LIFE_NONE " WRITE_LIFE_NONE |
| 2880 | * WRITE_LIFE_MEDIUM " WRITE_LIFE_MEDIUM |
| 2881 | * WRITE_LIFE_LONG " WRITE_LIFE_LONG |
Hyunchul Lee | bcdc571 | 2018-01-31 11:36:57 +0900 | [diff] [blame] | 2882 | */ |
| 2883 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2884 | enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, |
Hyunchul Lee | bcdc571 | 2018-01-31 11:36:57 +0900 | [diff] [blame] | 2885 | enum page_type type, enum temp_type temp) |
| 2886 | { |
Chao Yu | e9a50e6 | 2018-03-08 14:22:56 +0800 | [diff] [blame] | 2887 | if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_USER) { |
Hyunchul Lee | bcdc571 | 2018-01-31 11:36:57 +0900 | [diff] [blame] | 2888 | if (type == DATA) { |
Hyunchul Lee | 87c1806 | 2018-01-31 11:36:58 +0900 | [diff] [blame] | 2889 | if (temp == WARM) |
Hyunchul Lee | bcdc571 | 2018-01-31 11:36:57 +0900 | [diff] [blame] | 2890 | return WRITE_LIFE_NOT_SET; |
Hyunchul Lee | 87c1806 | 2018-01-31 11:36:58 +0900 | [diff] [blame] | 2891 | else if (temp == HOT) |
| 2892 | return WRITE_LIFE_SHORT; |
| 2893 | else if (temp == COLD) |
| 2894 | return WRITE_LIFE_EXTREME; |
Hyunchul Lee | bcdc571 | 2018-01-31 11:36:57 +0900 | [diff] [blame] | 2895 | } else { |
| 2896 | return WRITE_LIFE_NOT_SET; |
| 2897 | } |
Chao Yu | e9a50e6 | 2018-03-08 14:22:56 +0800 | [diff] [blame] | 2898 | } else if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_FS) { |
Hyunchul Lee | 87c1806 | 2018-01-31 11:36:58 +0900 | [diff] [blame] | 2899 | if (type == DATA) { |
| 2900 | if (temp == WARM) |
| 2901 | return WRITE_LIFE_LONG; |
| 2902 | else if (temp == HOT) |
| 2903 | return WRITE_LIFE_SHORT; |
| 2904 | else if (temp == COLD) |
| 2905 | return WRITE_LIFE_EXTREME; |
| 2906 | } else if (type == NODE) { |
| 2907 | if (temp == WARM || temp == HOT) |
| 2908 | return WRITE_LIFE_NOT_SET; |
| 2909 | else if (temp == COLD) |
| 2910 | return WRITE_LIFE_NONE; |
| 2911 | } else if (type == META) { |
| 2912 | return WRITE_LIFE_MEDIUM; |
| 2913 | } |
Hyunchul Lee | bcdc571 | 2018-01-31 11:36:57 +0900 | [diff] [blame] | 2914 | } |
Hyunchul Lee | 87c1806 | 2018-01-31 11:36:58 +0900 | [diff] [blame] | 2915 | return WRITE_LIFE_NOT_SET; |
Hyunchul Lee | bcdc571 | 2018-01-31 11:36:57 +0900 | [diff] [blame] | 2916 | } |
| 2917 | |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2918 | static int __get_segment_type_2(struct f2fs_io_info *fio) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2919 | { |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2920 | if (fio->type == DATA) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2921 | return CURSEG_HOT_DATA; |
| 2922 | else |
| 2923 | return CURSEG_HOT_NODE; |
| 2924 | } |
| 2925 | |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2926 | static int __get_segment_type_4(struct f2fs_io_info *fio) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2927 | { |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2928 | if (fio->type == DATA) { |
| 2929 | struct inode *inode = fio->page->mapping->host; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2930 | |
| 2931 | if (S_ISDIR(inode->i_mode)) |
| 2932 | return CURSEG_HOT_DATA; |
| 2933 | else |
| 2934 | return CURSEG_COLD_DATA; |
| 2935 | } else { |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2936 | if (IS_DNODE(fio->page) && is_cold_node(fio->page)) |
Jaegeuk Kim | a344b9f | 2014-11-05 20:05:53 -0800 | [diff] [blame] | 2937 | return CURSEG_WARM_NODE; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2938 | else |
| 2939 | return CURSEG_COLD_NODE; |
| 2940 | } |
| 2941 | } |
| 2942 | |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2943 | static int __get_segment_type_6(struct f2fs_io_info *fio) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2944 | { |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2945 | if (fio->type == DATA) { |
| 2946 | struct inode *inode = fio->page->mapping->host; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2947 | |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2948 | if (is_cold_data(fio->page) || file_is_cold(inode)) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2949 | return CURSEG_COLD_DATA; |
Chao Yu | ac734c4 | 2018-02-28 17:07:27 +0800 | [diff] [blame] | 2950 | if (file_is_hot(inode) || |
Chao Yu | f921fa8 | 2018-04-26 17:05:50 +0800 | [diff] [blame] | 2951 | is_inode_flag_set(inode, FI_HOT_DATA) || |
Chao Yu | 0c82975 | 2018-07-17 20:41:48 +0800 | [diff] [blame] | 2952 | f2fs_is_atomic_file(inode) || |
| 2953 | f2fs_is_volatile_file(inode)) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2954 | return CURSEG_HOT_DATA; |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2955 | /* f2fs_rw_hint_to_seg_type(inode->i_write_hint); */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2956 | return CURSEG_WARM_DATA; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2957 | } else { |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2958 | if (IS_DNODE(fio->page)) |
| 2959 | return is_cold_node(fio->page) ? CURSEG_WARM_NODE : |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2960 | CURSEG_HOT_NODE; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2961 | return CURSEG_COLD_NODE; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2962 | } |
| 2963 | } |
| 2964 | |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2965 | static int __get_segment_type(struct f2fs_io_info *fio) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2966 | { |
Jaegeuk Kim | c412726 | 2017-05-10 11:18:25 -0700 | [diff] [blame] | 2967 | int type = 0; |
| 2968 | |
Chao Yu | e9a50e6 | 2018-03-08 14:22:56 +0800 | [diff] [blame] | 2969 | switch (F2FS_OPTION(fio->sbi).active_logs) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2970 | case 2: |
Jaegeuk Kim | c412726 | 2017-05-10 11:18:25 -0700 | [diff] [blame] | 2971 | type = __get_segment_type_2(fio); |
| 2972 | break; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2973 | case 4: |
Jaegeuk Kim | c412726 | 2017-05-10 11:18:25 -0700 | [diff] [blame] | 2974 | type = __get_segment_type_4(fio); |
| 2975 | break; |
| 2976 | case 6: |
| 2977 | type = __get_segment_type_6(fio); |
| 2978 | break; |
| 2979 | default: |
| 2980 | f2fs_bug_on(fio->sbi, true); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2981 | } |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 2982 | |
Jaegeuk Kim | c412726 | 2017-05-10 11:18:25 -0700 | [diff] [blame] | 2983 | if (IS_HOT(type)) |
| 2984 | fio->temp = HOT; |
| 2985 | else if (IS_WARM(type)) |
| 2986 | fio->temp = WARM; |
| 2987 | else |
| 2988 | fio->temp = COLD; |
| 2989 | return type; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2990 | } |
| 2991 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 2992 | void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, |
Jaegeuk Kim | bfad7c2 | 2013-12-16 19:04:05 +0900 | [diff] [blame] | 2993 | block_t old_blkaddr, block_t *new_blkaddr, |
Chao Yu | c52dc0f | 2017-05-19 23:37:01 +0800 | [diff] [blame] | 2994 | struct f2fs_summary *sum, int type, |
| 2995 | struct f2fs_io_info *fio, bool add_list) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2996 | { |
| 2997 | struct sit_info *sit_i = SIT_I(sbi); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2998 | struct curseg_info *curseg = CURSEG_I(sbi, type); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 2999 | |
Chao Yu | 7f41aab | 2017-11-02 20:41:03 +0800 | [diff] [blame] | 3000 | down_read(&SM_I(sbi)->curseg_lock); |
| 3001 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3002 | mutex_lock(&curseg->curseg_mutex); |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 3003 | down_write(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3004 | |
| 3005 | *new_blkaddr = NEXT_FREE_BLKADDR(sbi, curseg); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3006 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3007 | f2fs_wait_discard_bio(sbi, *new_blkaddr); |
| 3008 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3009 | /* |
| 3010 | * __add_sum_entry should be resided under the curseg_mutex |
| 3011 | * because, this function updates a summary entry in the |
| 3012 | * current summary block. |
| 3013 | */ |
Haicheng Li | e79efe3 | 2013-06-13 16:59:27 +0800 | [diff] [blame] | 3014 | __add_sum_entry(sbi, type, sum); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3015 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3016 | __refresh_next_blkoff(sbi, curseg); |
Jaegeuk Kim | dcdfff6 | 2013-10-22 20:56:10 +0900 | [diff] [blame] | 3017 | |
| 3018 | stat_inc_block_count(sbi, curseg); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3019 | |
Yunlong Song | c7272f8 | 2017-10-30 09:33:41 +0800 | [diff] [blame] | 3020 | /* |
| 3021 | * SIT information should be updated before segment allocation, |
| 3022 | * since SSR needs latest valid block information. |
| 3023 | */ |
| 3024 | update_sit_entry(sbi, *new_blkaddr, 1); |
| 3025 | if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO) |
| 3026 | update_sit_entry(sbi, old_blkaddr, -1); |
| 3027 | |
Jaegeuk Kim | 5e44381 | 2014-01-28 12:22:14 +0900 | [diff] [blame] | 3028 | if (!__has_curseg_space(sbi, type)) |
| 3029 | sit_i->s_ops->allocate_segment(sbi, type, false); |
Yunlong Song | c7272f8 | 2017-10-30 09:33:41 +0800 | [diff] [blame] | 3030 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3031 | /* |
Yunlong Song | c7272f8 | 2017-10-30 09:33:41 +0800 | [diff] [blame] | 3032 | * segment dirty status should be updated after segment allocation, |
| 3033 | * so we just need to update status only one time after previous |
| 3034 | * segment being closed. |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3035 | */ |
Yunlong Song | c7272f8 | 2017-10-30 09:33:41 +0800 | [diff] [blame] | 3036 | locate_dirty_segment(sbi, GET_SEGNO(sbi, old_blkaddr)); |
| 3037 | locate_dirty_segment(sbi, GET_SEGNO(sbi, *new_blkaddr)); |
Jaegeuk Kim | 5e44381 | 2014-01-28 12:22:14 +0900 | [diff] [blame] | 3038 | |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 3039 | up_write(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3040 | |
Chao Yu | 4310125 | 2017-07-31 20:19:09 +0800 | [diff] [blame] | 3041 | if (page && IS_NODESEG(type)) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3042 | fill_node_footer_blkaddr(page, NEXT_FREE_BLKADDR(sbi, curseg)); |
| 3043 | |
Chao Yu | 4310125 | 2017-07-31 20:19:09 +0800 | [diff] [blame] | 3044 | f2fs_inode_chksum_set(sbi, page); |
| 3045 | } |
| 3046 | |
Chao Yu | c52dc0f | 2017-05-19 23:37:01 +0800 | [diff] [blame] | 3047 | if (add_list) { |
| 3048 | struct f2fs_bio_info *io; |
| 3049 | |
| 3050 | INIT_LIST_HEAD(&fio->list); |
| 3051 | fio->in_list = true; |
Chao Yu | 34880e0 | 2018-05-28 23:47:18 +0800 | [diff] [blame] | 3052 | fio->retry = false; |
Chao Yu | c52dc0f | 2017-05-19 23:37:01 +0800 | [diff] [blame] | 3053 | io = sbi->write_io[fio->type] + fio->temp; |
| 3054 | spin_lock(&io->io_lock); |
| 3055 | list_add_tail(&fio->list, &io->io_list); |
| 3056 | spin_unlock(&io->io_lock); |
| 3057 | } |
| 3058 | |
Jaegeuk Kim | bfad7c2 | 2013-12-16 19:04:05 +0900 | [diff] [blame] | 3059 | mutex_unlock(&curseg->curseg_mutex); |
Chao Yu | 7f41aab | 2017-11-02 20:41:03 +0800 | [diff] [blame] | 3060 | |
| 3061 | up_read(&SM_I(sbi)->curseg_lock); |
Jaegeuk Kim | bfad7c2 | 2013-12-16 19:04:05 +0900 | [diff] [blame] | 3062 | } |
| 3063 | |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 3064 | static void update_device_state(struct f2fs_io_info *fio) |
| 3065 | { |
| 3066 | struct f2fs_sb_info *sbi = fio->sbi; |
| 3067 | unsigned int devidx; |
| 3068 | |
| 3069 | if (!sbi->s_ndevs) |
| 3070 | return; |
| 3071 | |
| 3072 | devidx = f2fs_target_device_index(sbi, fio->new_blkaddr); |
| 3073 | |
| 3074 | /* update device state for fsync */ |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3075 | f2fs_set_dirty_device(sbi, fio->ino, devidx, FLUSH_INO); |
Chao Yu | fd6422e | 2017-09-29 13:59:39 +0800 | [diff] [blame] | 3076 | |
| 3077 | /* update device state for checkpoint */ |
| 3078 | if (!f2fs_test_bit(devidx, (char *)&sbi->dirty_device)) { |
| 3079 | spin_lock(&sbi->dev_lock); |
| 3080 | f2fs_set_bit(devidx, (char *)&sbi->dirty_device); |
| 3081 | spin_unlock(&sbi->dev_lock); |
| 3082 | } |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 3083 | } |
| 3084 | |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 3085 | static void do_write_page(struct f2fs_summary *sum, struct f2fs_io_info *fio) |
Jaegeuk Kim | bfad7c2 | 2013-12-16 19:04:05 +0900 | [diff] [blame] | 3086 | { |
Jaegeuk Kim | 72cc458 | 2017-05-10 14:19:54 -0700 | [diff] [blame] | 3087 | int type = __get_segment_type(fio); |
Chao Yu | bbab2dc | 2018-05-26 09:00:13 +0800 | [diff] [blame] | 3088 | bool keep_order = (test_opt(fio->sbi, LFS) && type == CURSEG_COLD_DATA); |
Jaegeuk Kim | bfad7c2 | 2013-12-16 19:04:05 +0900 | [diff] [blame] | 3089 | |
Chao Yu | bbab2dc | 2018-05-26 09:00:13 +0800 | [diff] [blame] | 3090 | if (keep_order) |
| 3091 | down_read(&fio->sbi->io_order_lock); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3092 | reallocate: |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3093 | f2fs_allocate_data_block(fio->sbi, fio->page, fio->old_blkaddr, |
Chao Yu | c52dc0f | 2017-05-19 23:37:01 +0800 | [diff] [blame] | 3094 | &fio->new_blkaddr, sum, type, fio, true); |
Chao Yu | 08386a6 | 2018-08-14 22:37:25 +0800 | [diff] [blame] | 3095 | if (GET_SEGNO(fio->sbi, fio->old_blkaddr) != NULL_SEGNO) |
| 3096 | invalidate_mapping_pages(META_MAPPING(fio->sbi), |
| 3097 | fio->old_blkaddr, fio->old_blkaddr); |
Jaegeuk Kim | bfad7c2 | 2013-12-16 19:04:05 +0900 | [diff] [blame] | 3098 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3099 | /* writeout dirty page into bdev */ |
Chao Yu | 34880e0 | 2018-05-28 23:47:18 +0800 | [diff] [blame] | 3100 | f2fs_submit_page_write(fio); |
| 3101 | if (fio->retry) { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3102 | fio->old_blkaddr = fio->new_blkaddr; |
| 3103 | goto reallocate; |
| 3104 | } |
Chao Yu | 34880e0 | 2018-05-28 23:47:18 +0800 | [diff] [blame] | 3105 | |
| 3106 | update_device_state(fio); |
| 3107 | |
Chao Yu | bbab2dc | 2018-05-26 09:00:13 +0800 | [diff] [blame] | 3108 | if (keep_order) |
| 3109 | up_read(&fio->sbi->io_order_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3110 | } |
| 3111 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3112 | void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page, |
Chao Yu | c0fe488 | 2017-08-02 23:21:48 +0800 | [diff] [blame] | 3113 | enum iostat_type io_type) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3114 | { |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 3115 | struct f2fs_io_info fio = { |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 3116 | .sbi = sbi, |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 3117 | .type = META, |
Hyunchul Lee | bcdc571 | 2018-01-31 11:36:57 +0900 | [diff] [blame] | 3118 | .temp = HOT, |
Mike Christie | 04d328d | 2016-06-05 14:31:55 -0500 | [diff] [blame] | 3119 | .op = REQ_OP_WRITE, |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3120 | .op_flags = REQ_SYNC | REQ_META | REQ_PRIO, |
Chao Yu | 7a9d754 | 2016-02-22 18:36:38 +0800 | [diff] [blame] | 3121 | .old_blkaddr = page->index, |
| 3122 | .new_blkaddr = page->index, |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 3123 | .page = page, |
Jaegeuk Kim | 4375a33 | 2015-04-23 12:04:33 -0700 | [diff] [blame] | 3124 | .encrypted_page = NULL, |
Chao Yu | c52dc0f | 2017-05-19 23:37:01 +0800 | [diff] [blame] | 3125 | .in_list = false, |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 3126 | }; |
| 3127 | |
Chao Yu | 2b94700 | 2015-10-12 17:04:21 +0800 | [diff] [blame] | 3128 | if (unlikely(page->index >= MAIN_BLKADDR(sbi))) |
Mike Christie | 04d328d | 2016-06-05 14:31:55 -0500 | [diff] [blame] | 3129 | fio.op_flags &= ~REQ_META; |
Chao Yu | 2b94700 | 2015-10-12 17:04:21 +0800 | [diff] [blame] | 3130 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3131 | set_page_writeback(page); |
Jaegeuk Kim | f453147 | 2018-04-11 23:09:04 -0700 | [diff] [blame] | 3132 | ClearPageError(page); |
Jaegeuk Kim | 9bc576a | 2017-05-10 11:28:38 -0700 | [diff] [blame] | 3133 | f2fs_submit_page_write(&fio); |
Chao Yu | c0fe488 | 2017-08-02 23:21:48 +0800 | [diff] [blame] | 3134 | |
Chao Yu | d826d4a | 2018-09-29 18:31:27 +0800 | [diff] [blame] | 3135 | stat_inc_meta_count(sbi, page->index); |
Chao Yu | c0fe488 | 2017-08-02 23:21:48 +0800 | [diff] [blame] | 3136 | f2fs_update_iostat(sbi, io_type, F2FS_BLKSIZE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3137 | } |
| 3138 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3139 | void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3140 | { |
| 3141 | struct f2fs_summary sum; |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 3142 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3143 | set_summary(&sum, nid, 0, 0); |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 3144 | do_write_page(&sum, fio); |
Chao Yu | c0fe488 | 2017-08-02 23:21:48 +0800 | [diff] [blame] | 3145 | |
| 3146 | f2fs_update_iostat(fio->sbi, fio->io_type, F2FS_BLKSIZE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3147 | } |
| 3148 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3149 | void f2fs_outplace_write_data(struct dnode_of_data *dn, |
| 3150 | struct f2fs_io_info *fio) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3151 | { |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 3152 | struct f2fs_sb_info *sbi = fio->sbi; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3153 | struct f2fs_summary sum; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3154 | |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 3155 | f2fs_bug_on(sbi, dn->data_blkaddr == NULL_ADDR); |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3156 | set_summary(&sum, dn->nid, dn->ofs_in_node, fio->version); |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 3157 | do_write_page(&sum, fio); |
Chao Yu | f28b343 | 2016-02-24 17:16:47 +0800 | [diff] [blame] | 3158 | f2fs_update_data_blkaddr(dn, fio->new_blkaddr); |
Chao Yu | c0fe488 | 2017-08-02 23:21:48 +0800 | [diff] [blame] | 3159 | |
| 3160 | f2fs_update_iostat(sbi, fio->io_type, F2FS_BLKSIZE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3161 | } |
| 3162 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3163 | int f2fs_inplace_write_data(struct f2fs_io_info *fio) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3164 | { |
Chao Yu | c0fe488 | 2017-08-02 23:21:48 +0800 | [diff] [blame] | 3165 | int err; |
Yunlei He | 848b293 | 2018-03-26 17:32:23 +0800 | [diff] [blame] | 3166 | struct f2fs_sb_info *sbi = fio->sbi; |
Chao Yu | c0fe488 | 2017-08-02 23:21:48 +0800 | [diff] [blame] | 3167 | |
Chao Yu | 7a9d754 | 2016-02-22 18:36:38 +0800 | [diff] [blame] | 3168 | fio->new_blkaddr = fio->old_blkaddr; |
Hyunchul Lee | bcdc571 | 2018-01-31 11:36:57 +0900 | [diff] [blame] | 3169 | /* i/o temperature is needed for passing down write hints */ |
| 3170 | __get_segment_type(fio); |
Yunlei He | 848b293 | 2018-03-26 17:32:23 +0800 | [diff] [blame] | 3171 | |
| 3172 | f2fs_bug_on(sbi, !IS_DATASEG(get_seg_entry(sbi, |
| 3173 | GET_SEGNO(sbi, fio->new_blkaddr))->type)); |
| 3174 | |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 3175 | stat_inc_inplace_blocks(fio->sbi); |
Chao Yu | c0fe488 | 2017-08-02 23:21:48 +0800 | [diff] [blame] | 3176 | |
| 3177 | err = f2fs_submit_page_bio(fio); |
Chao Yu | f014be8 | 2017-09-29 13:59:38 +0800 | [diff] [blame] | 3178 | if (!err) |
| 3179 | update_device_state(fio); |
Chao Yu | c0fe488 | 2017-08-02 23:21:48 +0800 | [diff] [blame] | 3180 | |
| 3181 | f2fs_update_iostat(fio->sbi, fio->io_type, F2FS_BLKSIZE); |
| 3182 | |
| 3183 | return err; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3184 | } |
| 3185 | |
Chao Yu | 7f41aab | 2017-11-02 20:41:03 +0800 | [diff] [blame] | 3186 | static inline int __f2fs_get_curseg(struct f2fs_sb_info *sbi, |
| 3187 | unsigned int segno) |
| 3188 | { |
| 3189 | int i; |
| 3190 | |
| 3191 | for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) { |
| 3192 | if (CURSEG_I(sbi, i)->segno == segno) |
| 3193 | break; |
| 3194 | } |
| 3195 | return i; |
| 3196 | } |
| 3197 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3198 | void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, |
Chao Yu | 19f106b | 2015-05-06 13:08:06 +0800 | [diff] [blame] | 3199 | block_t old_blkaddr, block_t new_blkaddr, |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 3200 | bool recover_curseg, bool recover_newaddr) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3201 | { |
| 3202 | struct sit_info *sit_i = SIT_I(sbi); |
| 3203 | struct curseg_info *curseg; |
| 3204 | unsigned int segno, old_cursegno; |
| 3205 | struct seg_entry *se; |
| 3206 | int type; |
Chao Yu | 19f106b | 2015-05-06 13:08:06 +0800 | [diff] [blame] | 3207 | unsigned short old_blkoff; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3208 | |
| 3209 | segno = GET_SEGNO(sbi, new_blkaddr); |
| 3210 | se = get_seg_entry(sbi, segno); |
| 3211 | type = se->type; |
| 3212 | |
Chao Yu | 7f41aab | 2017-11-02 20:41:03 +0800 | [diff] [blame] | 3213 | down_write(&SM_I(sbi)->curseg_lock); |
| 3214 | |
Chao Yu | 19f106b | 2015-05-06 13:08:06 +0800 | [diff] [blame] | 3215 | if (!recover_curseg) { |
| 3216 | /* for recovery flow */ |
| 3217 | if (se->valid_blocks == 0 && !IS_CURSEG(sbi, segno)) { |
| 3218 | if (old_blkaddr == NULL_ADDR) |
| 3219 | type = CURSEG_COLD_DATA; |
| 3220 | else |
| 3221 | type = CURSEG_WARM_DATA; |
| 3222 | } |
| 3223 | } else { |
Chao Yu | 7f41aab | 2017-11-02 20:41:03 +0800 | [diff] [blame] | 3224 | if (IS_CURSEG(sbi, segno)) { |
| 3225 | /* se->type is volatile as SSR allocation */ |
| 3226 | type = __f2fs_get_curseg(sbi, segno); |
| 3227 | f2fs_bug_on(sbi, type == NO_CHECK_TYPE); |
| 3228 | } else { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3229 | type = CURSEG_WARM_DATA; |
Chao Yu | 7f41aab | 2017-11-02 20:41:03 +0800 | [diff] [blame] | 3230 | } |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3231 | } |
Chao Yu | 19f106b | 2015-05-06 13:08:06 +0800 | [diff] [blame] | 3232 | |
Yunlong Song | 2659746 | 2018-01-04 15:02:02 +0800 | [diff] [blame] | 3233 | f2fs_bug_on(sbi, !IS_DATASEG(type)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3234 | curseg = CURSEG_I(sbi, type); |
| 3235 | |
| 3236 | mutex_lock(&curseg->curseg_mutex); |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 3237 | down_write(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3238 | |
| 3239 | old_cursegno = curseg->segno; |
Chao Yu | 19f106b | 2015-05-06 13:08:06 +0800 | [diff] [blame] | 3240 | old_blkoff = curseg->next_blkoff; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3241 | |
| 3242 | /* change the current segment */ |
| 3243 | if (segno != curseg->segno) { |
| 3244 | curseg->next_segno = segno; |
Chao Yu | a69c974 | 2017-08-30 18:04:48 +0800 | [diff] [blame] | 3245 | change_curseg(sbi, type); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3246 | } |
| 3247 | |
Jaegeuk Kim | 491c085 | 2014-02-04 13:01:10 +0900 | [diff] [blame] | 3248 | curseg->next_blkoff = GET_BLKOFF_FROM_SEG0(sbi, new_blkaddr); |
Haicheng Li | e79efe3 | 2013-06-13 16:59:27 +0800 | [diff] [blame] | 3249 | __add_sum_entry(sbi, type, sum); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3250 | |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 3251 | if (!recover_curseg || recover_newaddr) |
Jaegeuk Kim | 6e2c64a | 2015-10-07 12:28:41 -0700 | [diff] [blame] | 3252 | update_sit_entry(sbi, new_blkaddr, 1); |
Chao Yu | 08386a6 | 2018-08-14 22:37:25 +0800 | [diff] [blame] | 3253 | if (GET_SEGNO(sbi, old_blkaddr) != NULL_SEGNO) { |
| 3254 | invalidate_mapping_pages(META_MAPPING(sbi), |
| 3255 | old_blkaddr, old_blkaddr); |
Jaegeuk Kim | 6e2c64a | 2015-10-07 12:28:41 -0700 | [diff] [blame] | 3256 | update_sit_entry(sbi, old_blkaddr, -1); |
Chao Yu | 08386a6 | 2018-08-14 22:37:25 +0800 | [diff] [blame] | 3257 | } |
Jaegeuk Kim | 6e2c64a | 2015-10-07 12:28:41 -0700 | [diff] [blame] | 3258 | |
| 3259 | locate_dirty_segment(sbi, GET_SEGNO(sbi, old_blkaddr)); |
| 3260 | locate_dirty_segment(sbi, GET_SEGNO(sbi, new_blkaddr)); |
| 3261 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3262 | locate_dirty_segment(sbi, old_cursegno); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3263 | |
Chao Yu | 19f106b | 2015-05-06 13:08:06 +0800 | [diff] [blame] | 3264 | if (recover_curseg) { |
| 3265 | if (old_cursegno != curseg->segno) { |
| 3266 | curseg->next_segno = old_cursegno; |
Chao Yu | a69c974 | 2017-08-30 18:04:48 +0800 | [diff] [blame] | 3267 | change_curseg(sbi, type); |
Chao Yu | 19f106b | 2015-05-06 13:08:06 +0800 | [diff] [blame] | 3268 | } |
| 3269 | curseg->next_blkoff = old_blkoff; |
| 3270 | } |
| 3271 | |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 3272 | up_write(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3273 | mutex_unlock(&curseg->curseg_mutex); |
Chao Yu | 7f41aab | 2017-11-02 20:41:03 +0800 | [diff] [blame] | 3274 | up_write(&SM_I(sbi)->curseg_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3275 | } |
| 3276 | |
Chao Yu | 528e345 | 2015-05-28 19:15:35 +0800 | [diff] [blame] | 3277 | void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, |
| 3278 | block_t old_addr, block_t new_addr, |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 3279 | unsigned char version, bool recover_curseg, |
| 3280 | bool recover_newaddr) |
Chao Yu | 528e345 | 2015-05-28 19:15:35 +0800 | [diff] [blame] | 3281 | { |
| 3282 | struct f2fs_summary sum; |
| 3283 | |
| 3284 | set_summary(&sum, dn->nid, dn->ofs_in_node, version); |
| 3285 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3286 | f2fs_do_replace_block(sbi, &sum, old_addr, new_addr, |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 3287 | recover_curseg, recover_newaddr); |
Chao Yu | 528e345 | 2015-05-28 19:15:35 +0800 | [diff] [blame] | 3288 | |
Chao Yu | f28b343 | 2016-02-24 17:16:47 +0800 | [diff] [blame] | 3289 | f2fs_update_data_blkaddr(dn, new_addr); |
Chao Yu | 528e345 | 2015-05-28 19:15:35 +0800 | [diff] [blame] | 3290 | } |
| 3291 | |
Jaegeuk Kim | 93dfe2a | 2013-11-30 12:51:14 +0900 | [diff] [blame] | 3292 | void f2fs_wait_on_page_writeback(struct page *page, |
Chao Yu | d9b3df5 | 2018-12-25 17:43:42 +0800 | [diff] [blame] | 3293 | enum page_type type, bool ordered, bool locked) |
Jaegeuk Kim | 93dfe2a | 2013-11-30 12:51:14 +0900 | [diff] [blame] | 3294 | { |
Jaegeuk Kim | 93dfe2a | 2013-11-30 12:51:14 +0900 | [diff] [blame] | 3295 | if (PageWriteback(page)) { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 3296 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
| 3297 | |
Chao Yu | 39373df | 2018-09-27 23:41:16 +0800 | [diff] [blame] | 3298 | f2fs_submit_merged_write_cond(sbi, NULL, page, 0, type); |
Chao Yu | d9b3df5 | 2018-12-25 17:43:42 +0800 | [diff] [blame] | 3299 | if (ordered) { |
Jaegeuk Kim | fec1d65 | 2016-01-20 23:43:51 +0800 | [diff] [blame] | 3300 | wait_on_page_writeback(page); |
Chao Yu | d9b3df5 | 2018-12-25 17:43:42 +0800 | [diff] [blame] | 3301 | f2fs_bug_on(sbi, locked && PageWriteback(page)); |
| 3302 | } else { |
Jaegeuk Kim | fec1d65 | 2016-01-20 23:43:51 +0800 | [diff] [blame] | 3303 | wait_for_stable_page(page); |
Chao Yu | d9b3df5 | 2018-12-25 17:43:42 +0800 | [diff] [blame] | 3304 | } |
Jaegeuk Kim | 93dfe2a | 2013-11-30 12:51:14 +0900 | [diff] [blame] | 3305 | } |
| 3306 | } |
| 3307 | |
Jaegeuk Kim | 0d51cea | 2018-08-22 21:18:00 -0700 | [diff] [blame] | 3308 | void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr) |
Chao Yu | 08b39fb | 2015-10-08 13:27:34 +0800 | [diff] [blame] | 3309 | { |
Jaegeuk Kim | 0d51cea | 2018-08-22 21:18:00 -0700 | [diff] [blame] | 3310 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Chao Yu | 08b39fb | 2015-10-08 13:27:34 +0800 | [diff] [blame] | 3311 | struct page *cpage; |
| 3312 | |
Jaegeuk Kim | 0d51cea | 2018-08-22 21:18:00 -0700 | [diff] [blame] | 3313 | if (!f2fs_post_read_required(inode)) |
| 3314 | return; |
| 3315 | |
Chao Yu | d05e871 | 2018-06-05 17:44:11 +0800 | [diff] [blame] | 3316 | if (!is_valid_data_blkaddr(sbi, blkaddr)) |
Chao Yu | 08b39fb | 2015-10-08 13:27:34 +0800 | [diff] [blame] | 3317 | return; |
| 3318 | |
Chao Yu | 08b39fb | 2015-10-08 13:27:34 +0800 | [diff] [blame] | 3319 | cpage = find_lock_page(META_MAPPING(sbi), blkaddr); |
| 3320 | if (cpage) { |
Chao Yu | d9b3df5 | 2018-12-25 17:43:42 +0800 | [diff] [blame] | 3321 | f2fs_wait_on_page_writeback(cpage, DATA, true, true); |
Chao Yu | 08b39fb | 2015-10-08 13:27:34 +0800 | [diff] [blame] | 3322 | f2fs_put_page(cpage, 1); |
| 3323 | } |
| 3324 | } |
| 3325 | |
Sahitya Tummala | 3d57147 | 2018-10-10 10:56:22 +0530 | [diff] [blame] | 3326 | void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr, |
| 3327 | block_t len) |
| 3328 | { |
| 3329 | block_t i; |
| 3330 | |
| 3331 | for (i = 0; i < len; i++) |
| 3332 | f2fs_wait_on_block_writeback(inode, blkaddr + i); |
| 3333 | } |
| 3334 | |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3335 | static int read_compacted_summaries(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3336 | { |
| 3337 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
| 3338 | struct curseg_info *seg_i; |
| 3339 | unsigned char *kaddr; |
| 3340 | struct page *page; |
| 3341 | block_t start; |
| 3342 | int i, j, offset; |
| 3343 | |
| 3344 | start = start_sum_block(sbi); |
| 3345 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3346 | page = f2fs_get_meta_page(sbi, start++); |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3347 | if (IS_ERR(page)) |
| 3348 | return PTR_ERR(page); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3349 | kaddr = (unsigned char *)page_address(page); |
| 3350 | |
| 3351 | /* Step 1: restore nat cache */ |
| 3352 | seg_i = CURSEG_I(sbi, CURSEG_HOT_DATA); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3353 | memcpy(seg_i->journal, kaddr, SUM_JOURNAL_SIZE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3354 | |
| 3355 | /* Step 2: restore sit cache */ |
| 3356 | seg_i = CURSEG_I(sbi, CURSEG_COLD_DATA); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3357 | memcpy(seg_i->journal, kaddr + SUM_JOURNAL_SIZE, SUM_JOURNAL_SIZE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3358 | offset = 2 * SUM_JOURNAL_SIZE; |
| 3359 | |
| 3360 | /* Step 3: restore summary entries */ |
| 3361 | for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) { |
| 3362 | unsigned short blk_off; |
| 3363 | unsigned int segno; |
| 3364 | |
| 3365 | seg_i = CURSEG_I(sbi, i); |
| 3366 | segno = le32_to_cpu(ckpt->cur_data_segno[i]); |
| 3367 | blk_off = le16_to_cpu(ckpt->cur_data_blkoff[i]); |
| 3368 | seg_i->next_segno = segno; |
| 3369 | reset_curseg(sbi, i, 0); |
| 3370 | seg_i->alloc_type = ckpt->alloc_type[i]; |
| 3371 | seg_i->next_blkoff = blk_off; |
| 3372 | |
| 3373 | if (seg_i->alloc_type == SSR) |
| 3374 | blk_off = sbi->blocks_per_seg; |
| 3375 | |
| 3376 | for (j = 0; j < blk_off; j++) { |
| 3377 | struct f2fs_summary *s; |
| 3378 | s = (struct f2fs_summary *)(kaddr + offset); |
| 3379 | seg_i->sum_blk->entries[j] = *s; |
| 3380 | offset += SUMMARY_SIZE; |
Kirill A. Shutemov | 09cbfea | 2016-04-01 15:29:47 +0300 | [diff] [blame] | 3381 | if (offset + SUMMARY_SIZE <= PAGE_SIZE - |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3382 | SUM_FOOTER_SIZE) |
| 3383 | continue; |
| 3384 | |
| 3385 | f2fs_put_page(page, 1); |
| 3386 | page = NULL; |
| 3387 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3388 | page = f2fs_get_meta_page(sbi, start++); |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3389 | if (IS_ERR(page)) |
| 3390 | return PTR_ERR(page); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3391 | kaddr = (unsigned char *)page_address(page); |
| 3392 | offset = 0; |
| 3393 | } |
| 3394 | } |
| 3395 | f2fs_put_page(page, 1); |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3396 | return 0; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3397 | } |
| 3398 | |
| 3399 | static int read_normal_summaries(struct f2fs_sb_info *sbi, int type) |
| 3400 | { |
| 3401 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
| 3402 | struct f2fs_summary_block *sum; |
| 3403 | struct curseg_info *curseg; |
| 3404 | struct page *new; |
| 3405 | unsigned short blk_off; |
| 3406 | unsigned int segno = 0; |
| 3407 | block_t blk_addr = 0; |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3408 | int err = 0; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3409 | |
| 3410 | /* get segment number and block addr */ |
| 3411 | if (IS_DATASEG(type)) { |
| 3412 | segno = le32_to_cpu(ckpt->cur_data_segno[type]); |
| 3413 | blk_off = le16_to_cpu(ckpt->cur_data_blkoff[type - |
| 3414 | CURSEG_HOT_DATA]); |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 3415 | if (__exist_node_summaries(sbi)) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3416 | blk_addr = sum_blk_addr(sbi, NR_CURSEG_TYPE, type); |
| 3417 | else |
| 3418 | blk_addr = sum_blk_addr(sbi, NR_CURSEG_DATA_TYPE, type); |
| 3419 | } else { |
| 3420 | segno = le32_to_cpu(ckpt->cur_node_segno[type - |
| 3421 | CURSEG_HOT_NODE]); |
| 3422 | blk_off = le16_to_cpu(ckpt->cur_node_blkoff[type - |
| 3423 | CURSEG_HOT_NODE]); |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 3424 | if (__exist_node_summaries(sbi)) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3425 | blk_addr = sum_blk_addr(sbi, NR_CURSEG_NODE_TYPE, |
| 3426 | type - CURSEG_HOT_NODE); |
| 3427 | else |
| 3428 | blk_addr = GET_SUM_BLOCK(sbi, segno); |
| 3429 | } |
| 3430 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3431 | new = f2fs_get_meta_page(sbi, blk_addr); |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3432 | if (IS_ERR(new)) |
| 3433 | return PTR_ERR(new); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3434 | sum = (struct f2fs_summary_block *)page_address(new); |
| 3435 | |
| 3436 | if (IS_NODESEG(type)) { |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 3437 | if (__exist_node_summaries(sbi)) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3438 | struct f2fs_summary *ns = &sum->entries[0]; |
| 3439 | int i; |
| 3440 | for (i = 0; i < sbi->blocks_per_seg; i++, ns++) { |
| 3441 | ns->version = 0; |
| 3442 | ns->ofs_in_node = 0; |
| 3443 | } |
| 3444 | } else { |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3445 | err = f2fs_restore_node_summary(sbi, segno, sum); |
| 3446 | if (err) |
| 3447 | goto out; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3448 | } |
| 3449 | } |
| 3450 | |
| 3451 | /* set uncompleted segment to curseg */ |
| 3452 | curseg = CURSEG_I(sbi, type); |
| 3453 | mutex_lock(&curseg->curseg_mutex); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3454 | |
| 3455 | /* update journal info */ |
| 3456 | down_write(&curseg->journal_rwsem); |
| 3457 | memcpy(curseg->journal, &sum->journal, SUM_JOURNAL_SIZE); |
| 3458 | up_write(&curseg->journal_rwsem); |
| 3459 | |
| 3460 | memcpy(curseg->sum_blk->entries, sum->entries, SUM_ENTRY_SIZE); |
| 3461 | memcpy(&curseg->sum_blk->footer, &sum->footer, SUM_FOOTER_SIZE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3462 | curseg->next_segno = segno; |
| 3463 | reset_curseg(sbi, type, 0); |
| 3464 | curseg->alloc_type = ckpt->alloc_type[type]; |
| 3465 | curseg->next_blkoff = blk_off; |
| 3466 | mutex_unlock(&curseg->curseg_mutex); |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3467 | out: |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3468 | f2fs_put_page(new, 1); |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3469 | return err; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3470 | } |
| 3471 | |
| 3472 | static int restore_curseg_summaries(struct f2fs_sb_info *sbi) |
| 3473 | { |
Jin Qian | a8d6175 | 2017-06-01 11:18:30 -0700 | [diff] [blame] | 3474 | struct f2fs_journal *sit_j = CURSEG_I(sbi, CURSEG_COLD_DATA)->journal; |
| 3475 | struct f2fs_journal *nat_j = CURSEG_I(sbi, CURSEG_HOT_DATA)->journal; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3476 | int type = CURSEG_HOT_DATA; |
Chao Yu | e4fc5fb | 2014-03-17 16:36:24 +0800 | [diff] [blame] | 3477 | int err; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3478 | |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 3479 | if (is_set_ckpt_flags(sbi, CP_COMPACT_SUM_FLAG)) { |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3480 | int npages = f2fs_npages_for_summary_flush(sbi, true); |
Chao Yu | 3fa06d7 | 2014-12-09 14:21:46 +0800 | [diff] [blame] | 3481 | |
| 3482 | if (npages >= 2) |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3483 | f2fs_ra_meta_pages(sbi, start_sum_block(sbi), npages, |
Chao Yu | 26879fb | 2015-10-12 17:05:59 +0800 | [diff] [blame] | 3484 | META_CP, true); |
Chao Yu | 3fa06d7 | 2014-12-09 14:21:46 +0800 | [diff] [blame] | 3485 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3486 | /* restore for compacted data summary */ |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3487 | err = read_compacted_summaries(sbi); |
| 3488 | if (err) |
| 3489 | return err; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3490 | type = CURSEG_HOT_NODE; |
| 3491 | } |
| 3492 | |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 3493 | if (__exist_node_summaries(sbi)) |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3494 | f2fs_ra_meta_pages(sbi, sum_blk_addr(sbi, NR_CURSEG_TYPE, type), |
Chao Yu | 26879fb | 2015-10-12 17:05:59 +0800 | [diff] [blame] | 3495 | NR_CURSEG_TYPE - type, META_CP, true); |
Chao Yu | 3fa06d7 | 2014-12-09 14:21:46 +0800 | [diff] [blame] | 3496 | |
Chao Yu | e4fc5fb | 2014-03-17 16:36:24 +0800 | [diff] [blame] | 3497 | for (; type <= CURSEG_COLD_NODE; type++) { |
| 3498 | err = read_normal_summaries(sbi, type); |
| 3499 | if (err) |
| 3500 | return err; |
| 3501 | } |
| 3502 | |
Jin Qian | a8d6175 | 2017-06-01 11:18:30 -0700 | [diff] [blame] | 3503 | /* sanity check for summary blocks */ |
| 3504 | if (nats_in_cursum(nat_j) > NAT_JOURNAL_ENTRIES || |
| 3505 | sits_in_cursum(sit_j) > SIT_JOURNAL_ENTRIES) |
| 3506 | return -EINVAL; |
| 3507 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3508 | return 0; |
| 3509 | } |
| 3510 | |
| 3511 | static void write_compacted_summaries(struct f2fs_sb_info *sbi, block_t blkaddr) |
| 3512 | { |
| 3513 | struct page *page; |
| 3514 | unsigned char *kaddr; |
| 3515 | struct f2fs_summary *summary; |
| 3516 | struct curseg_info *seg_i; |
| 3517 | int written_size = 0; |
| 3518 | int i, j; |
| 3519 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3520 | page = f2fs_grab_meta_page(sbi, blkaddr++); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3521 | kaddr = (unsigned char *)page_address(page); |
Chao Yu | 7aee058 | 2018-04-09 20:25:06 +0800 | [diff] [blame] | 3522 | memset(kaddr, 0, PAGE_SIZE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3523 | |
| 3524 | /* Step 1: write nat cache */ |
| 3525 | seg_i = CURSEG_I(sbi, CURSEG_HOT_DATA); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3526 | memcpy(kaddr, seg_i->journal, SUM_JOURNAL_SIZE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3527 | written_size += SUM_JOURNAL_SIZE; |
| 3528 | |
| 3529 | /* Step 2: write sit cache */ |
| 3530 | seg_i = CURSEG_I(sbi, CURSEG_COLD_DATA); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3531 | memcpy(kaddr + written_size, seg_i->journal, SUM_JOURNAL_SIZE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3532 | written_size += SUM_JOURNAL_SIZE; |
| 3533 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3534 | /* Step 3: write summary entries */ |
| 3535 | for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) { |
| 3536 | unsigned short blkoff; |
| 3537 | seg_i = CURSEG_I(sbi, i); |
| 3538 | if (sbi->ckpt->alloc_type[i] == SSR) |
| 3539 | blkoff = sbi->blocks_per_seg; |
| 3540 | else |
| 3541 | blkoff = curseg_blkoff(sbi, i); |
| 3542 | |
| 3543 | for (j = 0; j < blkoff; j++) { |
| 3544 | if (!page) { |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3545 | page = f2fs_grab_meta_page(sbi, blkaddr++); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3546 | kaddr = (unsigned char *)page_address(page); |
Chao Yu | 7aee058 | 2018-04-09 20:25:06 +0800 | [diff] [blame] | 3547 | memset(kaddr, 0, PAGE_SIZE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3548 | written_size = 0; |
| 3549 | } |
| 3550 | summary = (struct f2fs_summary *)(kaddr + written_size); |
| 3551 | *summary = seg_i->sum_blk->entries[j]; |
| 3552 | written_size += SUMMARY_SIZE; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3553 | |
Kirill A. Shutemov | 09cbfea | 2016-04-01 15:29:47 +0300 | [diff] [blame] | 3554 | if (written_size + SUMMARY_SIZE <= PAGE_SIZE - |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3555 | SUM_FOOTER_SIZE) |
| 3556 | continue; |
| 3557 | |
Chao Yu | e8d61a7 | 2013-10-24 15:08:28 +0800 | [diff] [blame] | 3558 | set_page_dirty(page); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3559 | f2fs_put_page(page, 1); |
| 3560 | page = NULL; |
| 3561 | } |
| 3562 | } |
Chao Yu | e8d61a7 | 2013-10-24 15:08:28 +0800 | [diff] [blame] | 3563 | if (page) { |
| 3564 | set_page_dirty(page); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3565 | f2fs_put_page(page, 1); |
Chao Yu | e8d61a7 | 2013-10-24 15:08:28 +0800 | [diff] [blame] | 3566 | } |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3567 | } |
| 3568 | |
| 3569 | static void write_normal_summaries(struct f2fs_sb_info *sbi, |
| 3570 | block_t blkaddr, int type) |
| 3571 | { |
| 3572 | int i, end; |
| 3573 | if (IS_DATASEG(type)) |
| 3574 | end = type + NR_CURSEG_DATA_TYPE; |
| 3575 | else |
| 3576 | end = type + NR_CURSEG_NODE_TYPE; |
| 3577 | |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3578 | for (i = type; i < end; i++) |
| 3579 | write_current_sum_page(sbi, i, blkaddr + (i - type)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3580 | } |
| 3581 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3582 | void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3583 | { |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 3584 | if (is_set_ckpt_flags(sbi, CP_COMPACT_SUM_FLAG)) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3585 | write_compacted_summaries(sbi, start_blk); |
| 3586 | else |
| 3587 | write_normal_summaries(sbi, start_blk, CURSEG_HOT_DATA); |
| 3588 | } |
| 3589 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3590 | void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3591 | { |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 3592 | write_normal_summaries(sbi, start_blk, CURSEG_HOT_NODE); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3593 | } |
| 3594 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3595 | int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type, |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3596 | unsigned int val, int alloc) |
| 3597 | { |
| 3598 | int i; |
| 3599 | |
| 3600 | if (type == NAT_JOURNAL) { |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3601 | for (i = 0; i < nats_in_cursum(journal); i++) { |
| 3602 | if (le32_to_cpu(nid_in_journal(journal, i)) == val) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3603 | return i; |
| 3604 | } |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3605 | if (alloc && __has_cursum_space(journal, 1, NAT_JOURNAL)) |
| 3606 | return update_nats_in_cursum(journal, 1); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3607 | } else if (type == SIT_JOURNAL) { |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3608 | for (i = 0; i < sits_in_cursum(journal); i++) |
| 3609 | if (le32_to_cpu(segno_in_journal(journal, i)) == val) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3610 | return i; |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3611 | if (alloc && __has_cursum_space(journal, 1, SIT_JOURNAL)) |
| 3612 | return update_sits_in_cursum(journal, 1); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3613 | } |
| 3614 | return -1; |
| 3615 | } |
| 3616 | |
| 3617 | static struct page *get_current_sit_page(struct f2fs_sb_info *sbi, |
| 3618 | unsigned int segno) |
| 3619 | { |
Chao Yu | 3c74326 | 2018-07-17 00:02:17 +0800 | [diff] [blame] | 3620 | return f2fs_get_meta_page_nofail(sbi, current_sit_addr(sbi, segno)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3621 | } |
| 3622 | |
| 3623 | static struct page *get_next_sit_page(struct f2fs_sb_info *sbi, |
| 3624 | unsigned int start) |
| 3625 | { |
| 3626 | struct sit_info *sit_i = SIT_I(sbi); |
Yunlei He | 58dc6f6 | 2018-01-25 17:27:11 +0800 | [diff] [blame] | 3627 | struct page *page; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3628 | pgoff_t src_off, dst_off; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3629 | |
| 3630 | src_off = current_sit_addr(sbi, start); |
| 3631 | dst_off = next_sit_addr(sbi, src_off); |
| 3632 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3633 | page = f2fs_grab_meta_page(sbi, dst_off); |
Yunlei He | 58dc6f6 | 2018-01-25 17:27:11 +0800 | [diff] [blame] | 3634 | seg_info_to_sit_page(sbi, page, start); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3635 | |
Yunlei He | 58dc6f6 | 2018-01-25 17:27:11 +0800 | [diff] [blame] | 3636 | set_page_dirty(page); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3637 | set_to_next_sit(sit_i, start); |
| 3638 | |
Yunlei He | 58dc6f6 | 2018-01-25 17:27:11 +0800 | [diff] [blame] | 3639 | return page; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3640 | } |
| 3641 | |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3642 | static struct sit_entry_set *grab_sit_entry_set(void) |
| 3643 | { |
| 3644 | struct sit_entry_set *ses = |
Jaegeuk Kim | 80c5450 | 2015-08-20 08:51:56 -0700 | [diff] [blame] | 3645 | f2fs_kmem_cache_alloc(sit_entry_set_slab, GFP_NOFS); |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3646 | |
| 3647 | ses->entry_cnt = 0; |
| 3648 | INIT_LIST_HEAD(&ses->set_list); |
| 3649 | return ses; |
| 3650 | } |
| 3651 | |
| 3652 | static void release_sit_entry_set(struct sit_entry_set *ses) |
| 3653 | { |
| 3654 | list_del(&ses->set_list); |
| 3655 | kmem_cache_free(sit_entry_set_slab, ses); |
| 3656 | } |
| 3657 | |
| 3658 | static void adjust_sit_entry_set(struct sit_entry_set *ses, |
| 3659 | struct list_head *head) |
| 3660 | { |
| 3661 | struct sit_entry_set *next = ses; |
| 3662 | |
| 3663 | if (list_is_last(&ses->set_list, head)) |
| 3664 | return; |
| 3665 | |
| 3666 | list_for_each_entry_continue(next, head, set_list) |
| 3667 | if (ses->entry_cnt <= next->entry_cnt) |
| 3668 | break; |
| 3669 | |
| 3670 | list_move_tail(&ses->set_list, &next->set_list); |
| 3671 | } |
| 3672 | |
| 3673 | static void add_sit_entry(unsigned int segno, struct list_head *head) |
| 3674 | { |
| 3675 | struct sit_entry_set *ses; |
| 3676 | unsigned int start_segno = START_SEGNO(segno); |
| 3677 | |
| 3678 | list_for_each_entry(ses, head, set_list) { |
| 3679 | if (ses->start_segno == start_segno) { |
| 3680 | ses->entry_cnt++; |
| 3681 | adjust_sit_entry_set(ses, head); |
| 3682 | return; |
| 3683 | } |
| 3684 | } |
| 3685 | |
| 3686 | ses = grab_sit_entry_set(); |
| 3687 | |
| 3688 | ses->start_segno = start_segno; |
| 3689 | ses->entry_cnt++; |
| 3690 | list_add(&ses->set_list, head); |
| 3691 | } |
| 3692 | |
| 3693 | static void add_sits_in_set(struct f2fs_sb_info *sbi) |
| 3694 | { |
| 3695 | struct f2fs_sm_info *sm_info = SM_I(sbi); |
| 3696 | struct list_head *set_list = &sm_info->sit_entry_set; |
| 3697 | unsigned long *bitmap = SIT_I(sbi)->dirty_sentries_bitmap; |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3698 | unsigned int segno; |
| 3699 | |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 3700 | for_each_set_bit(segno, bitmap, MAIN_SEGS(sbi)) |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3701 | add_sit_entry(segno, set_list); |
| 3702 | } |
| 3703 | |
| 3704 | static void remove_sits_in_journal(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3705 | { |
| 3706 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_COLD_DATA); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3707 | struct f2fs_journal *journal = curseg->journal; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3708 | int i; |
| 3709 | |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3710 | down_write(&curseg->journal_rwsem); |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3711 | for (i = 0; i < sits_in_cursum(journal); i++) { |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3712 | unsigned int segno; |
| 3713 | bool dirtied; |
| 3714 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3715 | segno = le32_to_cpu(segno_in_journal(journal, i)); |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3716 | dirtied = __mark_sit_entry_dirty(sbi, segno); |
| 3717 | |
| 3718 | if (!dirtied) |
| 3719 | add_sit_entry(segno, &SM_I(sbi)->sit_entry_set); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3720 | } |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3721 | update_sits_in_cursum(journal, -i); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3722 | up_write(&curseg->journal_rwsem); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3723 | } |
| 3724 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 3725 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3726 | * CP calls this function, which flushes SIT entries including sit_journal, |
| 3727 | * and moves prefree segs to free segs. |
| 3728 | */ |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3729 | void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3730 | { |
| 3731 | struct sit_info *sit_i = SIT_I(sbi); |
| 3732 | unsigned long *bitmap = sit_i->dirty_sentries_bitmap; |
| 3733 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_COLD_DATA); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3734 | struct f2fs_journal *journal = curseg->journal; |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3735 | struct sit_entry_set *ses, *tmp; |
| 3736 | struct list_head *head = &SM_I(sbi)->sit_entry_set; |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3737 | bool to_journal = true; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 3738 | struct seg_entry *se; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3739 | |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 3740 | down_write(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3741 | |
Wanpeng Li | 2b11a74 | 2015-02-27 16:52:50 +0800 | [diff] [blame] | 3742 | if (!sit_i->dirty_sentries) |
| 3743 | goto out; |
| 3744 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3745 | /* |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3746 | * add and account sit entries of dirty bitmap in sit entry |
| 3747 | * set temporarily |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3748 | */ |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3749 | add_sits_in_set(sbi); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3750 | |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3751 | /* |
| 3752 | * if there are no enough space in journal to store dirty sit |
| 3753 | * entries, remove all entries from journal and add and account |
| 3754 | * them in sit entry set. |
| 3755 | */ |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3756 | if (!__has_cursum_space(journal, sit_i->dirty_sentries, SIT_JOURNAL)) |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3757 | remove_sits_in_journal(sbi); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3758 | |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3759 | /* |
| 3760 | * there are two steps to flush sit entries: |
| 3761 | * #1, flush sit entries to journal in current cold data summary block. |
| 3762 | * #2, flush sit entries to sit page. |
| 3763 | */ |
| 3764 | list_for_each_entry_safe(ses, tmp, head, set_list) { |
Jaegeuk Kim | 4a257ed | 2014-10-16 11:43:30 -0700 | [diff] [blame] | 3765 | struct page *page = NULL; |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3766 | struct f2fs_sit_block *raw_sit = NULL; |
| 3767 | unsigned int start_segno = ses->start_segno; |
| 3768 | unsigned int end = min(start_segno + SIT_ENTRY_PER_BLOCK, |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 3769 | (unsigned long)MAIN_SEGS(sbi)); |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3770 | unsigned int segno = start_segno; |
Jaegeuk Kim | b295555 | 2013-11-12 14:49:56 +0900 | [diff] [blame] | 3771 | |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3772 | if (to_journal && |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3773 | !__has_cursum_space(journal, ses->entry_cnt, SIT_JOURNAL)) |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3774 | to_journal = false; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3775 | |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3776 | if (to_journal) { |
| 3777 | down_write(&curseg->journal_rwsem); |
| 3778 | } else { |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3779 | page = get_next_sit_page(sbi, start_segno); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3780 | raw_sit = page_address(page); |
| 3781 | } |
| 3782 | |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3783 | /* flush dirty sit entries in region of current sit set */ |
| 3784 | for_each_set_bit_from(segno, bitmap, end) { |
| 3785 | int offset, sit_offset; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 3786 | |
| 3787 | se = get_seg_entry(sbi, segno); |
Zhikang Zhang | 5a60d4c | 2018-04-09 04:28:41 +0800 | [diff] [blame] | 3788 | #ifdef CONFIG_F2FS_CHECK_FS |
| 3789 | if (memcmp(se->cur_valid_map, se->cur_valid_map_mir, |
| 3790 | SIT_VBLOCK_MAP_SIZE)) |
| 3791 | f2fs_bug_on(sbi, 1); |
| 3792 | #endif |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3793 | |
| 3794 | /* add discard candidates */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3795 | if (!(cpc->reason & CP_DISCARD)) { |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 3796 | cpc->trim_start = segno; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3797 | add_discard_addrs(sbi, cpc, false); |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 3798 | } |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3799 | |
| 3800 | if (to_journal) { |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 3801 | offset = f2fs_lookup_journal_in_cursum(journal, |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3802 | SIT_JOURNAL, segno, 1); |
| 3803 | f2fs_bug_on(sbi, offset < 0); |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3804 | segno_in_journal(journal, offset) = |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3805 | cpu_to_le32(segno); |
| 3806 | seg_info_to_raw_sit(se, |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 3807 | &sit_in_journal(journal, offset)); |
Zhikang Zhang | 5a60d4c | 2018-04-09 04:28:41 +0800 | [diff] [blame] | 3808 | check_block_count(sbi, segno, |
| 3809 | &sit_in_journal(journal, offset)); |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3810 | } else { |
| 3811 | sit_offset = SIT_ENTRY_OFFSET(sit_i, segno); |
| 3812 | seg_info_to_raw_sit(se, |
| 3813 | &raw_sit->entries[sit_offset]); |
Zhikang Zhang | 5a60d4c | 2018-04-09 04:28:41 +0800 | [diff] [blame] | 3814 | check_block_count(sbi, segno, |
| 3815 | &raw_sit->entries[sit_offset]); |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3816 | } |
| 3817 | |
| 3818 | __clear_bit(segno, bitmap); |
| 3819 | sit_i->dirty_sentries--; |
| 3820 | ses->entry_cnt--; |
| 3821 | } |
| 3822 | |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3823 | if (to_journal) |
| 3824 | up_write(&curseg->journal_rwsem); |
| 3825 | else |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3826 | f2fs_put_page(page, 1); |
| 3827 | |
| 3828 | f2fs_bug_on(sbi, ses->entry_cnt); |
| 3829 | release_sit_entry_set(ses); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3830 | } |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3831 | |
| 3832 | f2fs_bug_on(sbi, !list_empty(head)); |
| 3833 | f2fs_bug_on(sbi, sit_i->dirty_sentries); |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 3834 | out: |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3835 | if (cpc->reason & CP_DISCARD) { |
| 3836 | __u64 trim_start = cpc->trim_start; |
| 3837 | |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 3838 | for (; cpc->trim_start <= cpc->trim_end; cpc->trim_start++) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3839 | add_discard_addrs(sbi, cpc, false); |
| 3840 | |
| 3841 | cpc->trim_start = trim_start; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 3842 | } |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 3843 | up_write(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3844 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3845 | set_prefree_as_free_segments(sbi); |
| 3846 | } |
| 3847 | |
| 3848 | static int build_sit_info(struct f2fs_sb_info *sbi) |
| 3849 | { |
| 3850 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3851 | struct sit_info *sit_i; |
| 3852 | unsigned int sit_segs, start; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3853 | char *src_bitmap; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3854 | unsigned int bitmap_size; |
| 3855 | |
| 3856 | /* allocate memory for SIT information */ |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 3857 | sit_i = f2fs_kzalloc(sbi, sizeof(struct sit_info), GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3858 | if (!sit_i) |
| 3859 | return -ENOMEM; |
| 3860 | |
| 3861 | SM_I(sbi)->sit_info = sit_i; |
| 3862 | |
Kees Cook | f950fa4 | 2018-06-12 14:28:35 -0700 | [diff] [blame] | 3863 | sit_i->sentries = |
| 3864 | f2fs_kvzalloc(sbi, array_size(sizeof(struct seg_entry), |
| 3865 | MAIN_SEGS(sbi)), |
| 3866 | GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3867 | if (!sit_i->sentries) |
| 3868 | return -ENOMEM; |
| 3869 | |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 3870 | bitmap_size = f2fs_bitmap_size(MAIN_SEGS(sbi)); |
Chao Yu | ead5259 | 2017-11-30 19:28:18 +0800 | [diff] [blame] | 3871 | sit_i->dirty_sentries_bitmap = f2fs_kvzalloc(sbi, bitmap_size, |
| 3872 | GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3873 | if (!sit_i->dirty_sentries_bitmap) |
| 3874 | return -ENOMEM; |
| 3875 | |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 3876 | for (start = 0; start < MAIN_SEGS(sbi); start++) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3877 | sit_i->sentries[start].cur_valid_map |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 3878 | = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3879 | sit_i->sentries[start].ckpt_valid_map |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 3880 | = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL); |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 3881 | if (!sit_i->sentries[start].cur_valid_map || |
Jaegeuk Kim | 3e02574 | 2016-08-02 10:56:40 -0700 | [diff] [blame] | 3882 | !sit_i->sentries[start].ckpt_valid_map) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3883 | return -ENOMEM; |
Jaegeuk Kim | 3e02574 | 2016-08-02 10:56:40 -0700 | [diff] [blame] | 3884 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3885 | #ifdef CONFIG_F2FS_CHECK_FS |
| 3886 | sit_i->sentries[start].cur_valid_map_mir |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 3887 | = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3888 | if (!sit_i->sentries[start].cur_valid_map_mir) |
| 3889 | return -ENOMEM; |
| 3890 | #endif |
| 3891 | |
Chao Yu | 12d8e57 | 2018-09-04 03:52:17 +0800 | [diff] [blame] | 3892 | sit_i->sentries[start].discard_map |
| 3893 | = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, |
| 3894 | GFP_KERNEL); |
| 3895 | if (!sit_i->sentries[start].discard_map) |
| 3896 | return -ENOMEM; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3897 | } |
| 3898 | |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 3899 | sit_i->tmp_map = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL); |
Jaegeuk Kim | 60a3b78 | 2015-02-10 16:44:29 -0800 | [diff] [blame] | 3900 | if (!sit_i->tmp_map) |
| 3901 | return -ENOMEM; |
| 3902 | |
Chao Yu | 7fc4751 | 2018-10-24 18:37:26 +0800 | [diff] [blame] | 3903 | if (__is_large_section(sbi)) { |
Kees Cook | f950fa4 | 2018-06-12 14:28:35 -0700 | [diff] [blame] | 3904 | sit_i->sec_entries = |
| 3905 | f2fs_kvzalloc(sbi, array_size(sizeof(struct sec_entry), |
| 3906 | MAIN_SECS(sbi)), |
| 3907 | GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3908 | if (!sit_i->sec_entries) |
| 3909 | return -ENOMEM; |
| 3910 | } |
| 3911 | |
| 3912 | /* get information related with SIT */ |
| 3913 | sit_segs = le32_to_cpu(raw_super->segment_count_sit) >> 1; |
| 3914 | |
| 3915 | /* setup SIT bitmap from ckeckpoint pack */ |
| 3916 | bitmap_size = __bitmap_size(sbi, SIT_BITMAP); |
| 3917 | src_bitmap = __bitmap_ptr(sbi, SIT_BITMAP); |
| 3918 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3919 | sit_i->sit_bitmap = kmemdup(src_bitmap, bitmap_size, GFP_KERNEL); |
| 3920 | if (!sit_i->sit_bitmap) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3921 | return -ENOMEM; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3922 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3923 | #ifdef CONFIG_F2FS_CHECK_FS |
| 3924 | sit_i->sit_bitmap_mir = kmemdup(src_bitmap, bitmap_size, GFP_KERNEL); |
| 3925 | if (!sit_i->sit_bitmap_mir) |
| 3926 | return -ENOMEM; |
| 3927 | #endif |
| 3928 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3929 | /* init SIT information */ |
| 3930 | sit_i->s_ops = &default_salloc_ops; |
| 3931 | |
| 3932 | sit_i->sit_base_addr = le32_to_cpu(raw_super->sit_blkaddr); |
| 3933 | sit_i->sit_blocks = sit_segs << sbi->log_blocks_per_seg; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3934 | sit_i->written_valid_blocks = 0; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3935 | sit_i->bitmap_size = bitmap_size; |
| 3936 | sit_i->dirty_sentries = 0; |
| 3937 | sit_i->sents_per_block = SIT_ENTRY_PER_BLOCK; |
| 3938 | sit_i->elapsed_time = le64_to_cpu(sbi->ckpt->elapsed_time); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 3939 | sit_i->mounted_time = ktime_get_real_seconds(); |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 3940 | init_rwsem(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3941 | return 0; |
| 3942 | } |
| 3943 | |
| 3944 | static int build_free_segmap(struct f2fs_sb_info *sbi) |
| 3945 | { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3946 | struct free_segmap_info *free_i; |
| 3947 | unsigned int bitmap_size, sec_bitmap_size; |
| 3948 | |
| 3949 | /* allocate memory for free segmap information */ |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 3950 | free_i = f2fs_kzalloc(sbi, sizeof(struct free_segmap_info), GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3951 | if (!free_i) |
| 3952 | return -ENOMEM; |
| 3953 | |
| 3954 | SM_I(sbi)->free_info = free_i; |
| 3955 | |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 3956 | bitmap_size = f2fs_bitmap_size(MAIN_SEGS(sbi)); |
Chao Yu | ead5259 | 2017-11-30 19:28:18 +0800 | [diff] [blame] | 3957 | free_i->free_segmap = f2fs_kvmalloc(sbi, bitmap_size, GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3958 | if (!free_i->free_segmap) |
| 3959 | return -ENOMEM; |
| 3960 | |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 3961 | sec_bitmap_size = f2fs_bitmap_size(MAIN_SECS(sbi)); |
Chao Yu | ead5259 | 2017-11-30 19:28:18 +0800 | [diff] [blame] | 3962 | free_i->free_secmap = f2fs_kvmalloc(sbi, sec_bitmap_size, GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3963 | if (!free_i->free_secmap) |
| 3964 | return -ENOMEM; |
| 3965 | |
| 3966 | /* set all segments as dirty temporarily */ |
| 3967 | memset(free_i->free_segmap, 0xff, bitmap_size); |
| 3968 | memset(free_i->free_secmap, 0xff, sec_bitmap_size); |
| 3969 | |
| 3970 | /* init free segmap information */ |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 3971 | free_i->start_segno = GET_SEGNO_FROM_SEG0(sbi, MAIN_BLKADDR(sbi)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3972 | free_i->free_segments = 0; |
| 3973 | free_i->free_sections = 0; |
Chao Yu | 1a118cc | 2015-02-11 18:20:38 +0800 | [diff] [blame] | 3974 | spin_lock_init(&free_i->segmap_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3975 | return 0; |
| 3976 | } |
| 3977 | |
| 3978 | static int build_curseg(struct f2fs_sb_info *sbi) |
| 3979 | { |
Namjae Jeon | 1042d60 | 2012-12-01 10:56:13 +0900 | [diff] [blame] | 3980 | struct curseg_info *array; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3981 | int i; |
| 3982 | |
Kees Cook | 61f4864 | 2018-06-12 14:28:23 -0700 | [diff] [blame] | 3983 | array = f2fs_kzalloc(sbi, array_size(NR_CURSEG_TYPE, sizeof(*array)), |
| 3984 | GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3985 | if (!array) |
| 3986 | return -ENOMEM; |
| 3987 | |
| 3988 | SM_I(sbi)->curseg_array = array; |
| 3989 | |
| 3990 | for (i = 0; i < NR_CURSEG_TYPE; i++) { |
| 3991 | mutex_init(&array[i].curseg_mutex); |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 3992 | array[i].sum_blk = f2fs_kzalloc(sbi, PAGE_SIZE, GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 3993 | if (!array[i].sum_blk) |
| 3994 | return -ENOMEM; |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3995 | init_rwsem(&array[i].journal_rwsem); |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 3996 | array[i].journal = f2fs_kzalloc(sbi, |
| 3997 | sizeof(struct f2fs_journal), GFP_KERNEL); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 3998 | if (!array[i].journal) |
| 3999 | return -ENOMEM; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4000 | array[i].segno = NULL_SEGNO; |
| 4001 | array[i].next_blkoff = 0; |
| 4002 | } |
| 4003 | return restore_curseg_summaries(sbi); |
| 4004 | } |
| 4005 | |
Jaegeuk Kim | 2648e73 | 2017-12-19 19:16:34 -0800 | [diff] [blame] | 4006 | static int build_sit_entries(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4007 | { |
| 4008 | struct sit_info *sit_i = SIT_I(sbi); |
| 4009 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_COLD_DATA); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 4010 | struct f2fs_journal *journal = curseg->journal; |
Yunlei He | 9c09404 | 2016-09-24 12:29:18 +0800 | [diff] [blame] | 4011 | struct seg_entry *se; |
| 4012 | struct f2fs_sit_entry sit; |
Chao Yu | 74de593 | 2013-11-22 09:09:59 +0800 | [diff] [blame] | 4013 | int sit_blk_cnt = SIT_BLK_CNT(sbi); |
| 4014 | unsigned int i, start, end; |
| 4015 | unsigned int readed, start_blk = 0; |
Jaegeuk Kim | 2648e73 | 2017-12-19 19:16:34 -0800 | [diff] [blame] | 4016 | int err = 0; |
Jaegeuk Kim | 1c7d5f0 | 2018-04-24 21:34:05 -0600 | [diff] [blame] | 4017 | block_t total_node_blocks = 0; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4018 | |
Chao Yu | 74de593 | 2013-11-22 09:09:59 +0800 | [diff] [blame] | 4019 | do { |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 4020 | readed = f2fs_ra_meta_pages(sbi, start_blk, BIO_MAX_PAGES, |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4021 | META_SIT, true); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4022 | |
Chao Yu | 74de593 | 2013-11-22 09:09:59 +0800 | [diff] [blame] | 4023 | start = start_blk * sit_i->sents_per_block; |
| 4024 | end = (start_blk + readed) * sit_i->sents_per_block; |
| 4025 | |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 4026 | for (; start < end && start < MAIN_SEGS(sbi); start++) { |
Chao Yu | 74de593 | 2013-11-22 09:09:59 +0800 | [diff] [blame] | 4027 | struct f2fs_sit_block *sit_blk; |
Chao Yu | 74de593 | 2013-11-22 09:09:59 +0800 | [diff] [blame] | 4028 | struct page *page; |
| 4029 | |
Yunlei He | 9c09404 | 2016-09-24 12:29:18 +0800 | [diff] [blame] | 4030 | se = &sit_i->sentries[start]; |
Chao Yu | 74de593 | 2013-11-22 09:09:59 +0800 | [diff] [blame] | 4031 | page = get_current_sit_page(sbi, start); |
Jaegeuk Kim | 4474e2f | 2018-09-17 17:36:06 -0700 | [diff] [blame] | 4032 | if (IS_ERR(page)) |
| 4033 | return PTR_ERR(page); |
Chao Yu | 74de593 | 2013-11-22 09:09:59 +0800 | [diff] [blame] | 4034 | sit_blk = (struct f2fs_sit_block *)page_address(page); |
| 4035 | sit = sit_blk->entries[SIT_ENTRY_OFFSET(sit_i, start)]; |
| 4036 | f2fs_put_page(page, 1); |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4037 | |
Jaegeuk Kim | 2648e73 | 2017-12-19 19:16:34 -0800 | [diff] [blame] | 4038 | err = check_block_count(sbi, start, &sit); |
| 4039 | if (err) |
| 4040 | return err; |
Chao Yu | 74de593 | 2013-11-22 09:09:59 +0800 | [diff] [blame] | 4041 | seg_info_from_raw_sit(se, &sit); |
Jaegeuk Kim | 1c7d5f0 | 2018-04-24 21:34:05 -0600 | [diff] [blame] | 4042 | if (IS_NODESEG(se->type)) |
| 4043 | total_node_blocks += se->valid_blocks; |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 4044 | |
| 4045 | /* build discard map only one time */ |
Chao Yu | 12d8e57 | 2018-09-04 03:52:17 +0800 | [diff] [blame] | 4046 | if (is_set_ckpt_flags(sbi, CP_TRIMMED_FLAG)) { |
| 4047 | memset(se->discard_map, 0xff, |
| 4048 | SIT_VBLOCK_MAP_SIZE); |
| 4049 | } else { |
| 4050 | memcpy(se->discard_map, |
| 4051 | se->cur_valid_map, |
| 4052 | SIT_VBLOCK_MAP_SIZE); |
| 4053 | sbi->discard_blks += |
| 4054 | sbi->blocks_per_seg - |
| 4055 | se->valid_blocks; |
Jaegeuk Kim | 3e02574 | 2016-08-02 10:56:40 -0700 | [diff] [blame] | 4056 | } |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 4057 | |
Chao Yu | 7fc4751 | 2018-10-24 18:37:26 +0800 | [diff] [blame] | 4058 | if (__is_large_section(sbi)) |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4059 | get_sec_entry(sbi, start)->valid_blocks += |
| 4060 | se->valid_blocks; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4061 | } |
Chao Yu | 74de593 | 2013-11-22 09:09:59 +0800 | [diff] [blame] | 4062 | start_blk += readed; |
| 4063 | } while (start_blk < sit_blk_cnt); |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4064 | |
| 4065 | down_read(&curseg->journal_rwsem); |
| 4066 | for (i = 0; i < sits_in_cursum(journal); i++) { |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4067 | unsigned int old_valid_blocks; |
| 4068 | |
| 4069 | start = le32_to_cpu(segno_in_journal(journal, i)); |
Jaegeuk Kim | 0f0b18a | 2018-04-24 15:44:16 -0600 | [diff] [blame] | 4070 | if (start >= MAIN_SEGS(sbi)) { |
| 4071 | f2fs_msg(sbi->sb, KERN_ERR, |
| 4072 | "Wrong journal entry on segno %u", |
| 4073 | start); |
| 4074 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
| 4075 | err = -EINVAL; |
| 4076 | break; |
| 4077 | } |
| 4078 | |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4079 | se = &sit_i->sentries[start]; |
| 4080 | sit = sit_in_journal(journal, i); |
| 4081 | |
| 4082 | old_valid_blocks = se->valid_blocks; |
Jaegeuk Kim | 1c7d5f0 | 2018-04-24 21:34:05 -0600 | [diff] [blame] | 4083 | if (IS_NODESEG(se->type)) |
| 4084 | total_node_blocks -= old_valid_blocks; |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4085 | |
Jaegeuk Kim | 2648e73 | 2017-12-19 19:16:34 -0800 | [diff] [blame] | 4086 | err = check_block_count(sbi, start, &sit); |
| 4087 | if (err) |
| 4088 | break; |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4089 | seg_info_from_raw_sit(se, &sit); |
Jaegeuk Kim | 1c7d5f0 | 2018-04-24 21:34:05 -0600 | [diff] [blame] | 4090 | if (IS_NODESEG(se->type)) |
| 4091 | total_node_blocks += se->valid_blocks; |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4092 | |
Chao Yu | 12d8e57 | 2018-09-04 03:52:17 +0800 | [diff] [blame] | 4093 | if (is_set_ckpt_flags(sbi, CP_TRIMMED_FLAG)) { |
| 4094 | memset(se->discard_map, 0xff, SIT_VBLOCK_MAP_SIZE); |
| 4095 | } else { |
| 4096 | memcpy(se->discard_map, se->cur_valid_map, |
| 4097 | SIT_VBLOCK_MAP_SIZE); |
| 4098 | sbi->discard_blks += old_valid_blocks; |
| 4099 | sbi->discard_blks -= se->valid_blocks; |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4100 | } |
| 4101 | |
Chao Yu | 7fc4751 | 2018-10-24 18:37:26 +0800 | [diff] [blame] | 4102 | if (__is_large_section(sbi)) { |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4103 | get_sec_entry(sbi, start)->valid_blocks += |
Chao Yu | 54f4378 | 2018-04-25 19:38:17 +0800 | [diff] [blame] | 4104 | se->valid_blocks; |
| 4105 | get_sec_entry(sbi, start)->valid_blocks -= |
| 4106 | old_valid_blocks; |
| 4107 | } |
Chao Yu | d600af23 | 2016-08-19 23:13:47 +0800 | [diff] [blame] | 4108 | } |
| 4109 | up_read(&curseg->journal_rwsem); |
Jaegeuk Kim | 1c7d5f0 | 2018-04-24 21:34:05 -0600 | [diff] [blame] | 4110 | |
| 4111 | if (!err && total_node_blocks != valid_node_count(sbi)) { |
| 4112 | f2fs_msg(sbi->sb, KERN_ERR, |
| 4113 | "SIT is corrupted node# %u vs %u", |
| 4114 | total_node_blocks, valid_node_count(sbi)); |
| 4115 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
| 4116 | err = -EINVAL; |
| 4117 | } |
| 4118 | |
Jaegeuk Kim | 2648e73 | 2017-12-19 19:16:34 -0800 | [diff] [blame] | 4119 | return err; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4120 | } |
| 4121 | |
| 4122 | static void init_free_segmap(struct f2fs_sb_info *sbi) |
| 4123 | { |
| 4124 | unsigned int start; |
| 4125 | int type; |
| 4126 | |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 4127 | for (start = 0; start < MAIN_SEGS(sbi); start++) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4128 | struct seg_entry *sentry = get_seg_entry(sbi, start); |
| 4129 | if (!sentry->valid_blocks) |
| 4130 | __set_free(sbi, start); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4131 | else |
| 4132 | SIT_I(sbi)->written_valid_blocks += |
| 4133 | sentry->valid_blocks; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4134 | } |
| 4135 | |
| 4136 | /* set use the current segments */ |
| 4137 | for (type = CURSEG_HOT_DATA; type <= CURSEG_COLD_NODE; type++) { |
| 4138 | struct curseg_info *curseg_t = CURSEG_I(sbi, type); |
| 4139 | __set_test_and_inuse(sbi, curseg_t->segno); |
| 4140 | } |
| 4141 | } |
| 4142 | |
| 4143 | static void init_dirty_segmap(struct f2fs_sb_info *sbi) |
| 4144 | { |
| 4145 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
| 4146 | struct free_segmap_info *free_i = FREE_I(sbi); |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 4147 | unsigned int segno = 0, offset = 0; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4148 | unsigned short valid_blocks; |
| 4149 | |
Namjae Jeon | 8736fbf | 2013-06-16 09:49:11 +0900 | [diff] [blame] | 4150 | while (1) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4151 | /* find dirty segment based on free segmap */ |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 4152 | segno = find_next_inuse(free_i, MAIN_SEGS(sbi), offset); |
| 4153 | if (segno >= MAIN_SEGS(sbi)) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4154 | break; |
| 4155 | offset = segno + 1; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4156 | valid_blocks = get_valid_blocks(sbi, segno, false); |
Jaegeuk Kim | ec325b5 | 2014-09-02 16:24:11 -0700 | [diff] [blame] | 4157 | if (valid_blocks == sbi->blocks_per_seg || !valid_blocks) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4158 | continue; |
Jaegeuk Kim | ec325b5 | 2014-09-02 16:24:11 -0700 | [diff] [blame] | 4159 | if (valid_blocks > sbi->blocks_per_seg) { |
| 4160 | f2fs_bug_on(sbi, 1); |
| 4161 | continue; |
| 4162 | } |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4163 | mutex_lock(&dirty_i->seglist_lock); |
| 4164 | __locate_dirty_segment(sbi, segno, DIRTY); |
| 4165 | mutex_unlock(&dirty_i->seglist_lock); |
| 4166 | } |
| 4167 | } |
| 4168 | |
Jaegeuk Kim | 5ec4e49 | 2013-03-31 13:26:03 +0900 | [diff] [blame] | 4169 | static int init_victim_secmap(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4170 | { |
| 4171 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 4172 | unsigned int bitmap_size = f2fs_bitmap_size(MAIN_SECS(sbi)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4173 | |
Chao Yu | ead5259 | 2017-11-30 19:28:18 +0800 | [diff] [blame] | 4174 | dirty_i->victim_secmap = f2fs_kvzalloc(sbi, bitmap_size, GFP_KERNEL); |
Jaegeuk Kim | 5ec4e49 | 2013-03-31 13:26:03 +0900 | [diff] [blame] | 4175 | if (!dirty_i->victim_secmap) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4176 | return -ENOMEM; |
| 4177 | return 0; |
| 4178 | } |
| 4179 | |
| 4180 | static int build_dirty_segmap(struct f2fs_sb_info *sbi) |
| 4181 | { |
| 4182 | struct dirty_seglist_info *dirty_i; |
| 4183 | unsigned int bitmap_size, i; |
| 4184 | |
| 4185 | /* allocate memory for dirty segments list information */ |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 4186 | dirty_i = f2fs_kzalloc(sbi, sizeof(struct dirty_seglist_info), |
| 4187 | GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4188 | if (!dirty_i) |
| 4189 | return -ENOMEM; |
| 4190 | |
| 4191 | SM_I(sbi)->dirty_info = dirty_i; |
| 4192 | mutex_init(&dirty_i->seglist_lock); |
| 4193 | |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 4194 | bitmap_size = f2fs_bitmap_size(MAIN_SEGS(sbi)); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4195 | |
| 4196 | for (i = 0; i < NR_DIRTY_TYPE; i++) { |
Chao Yu | ead5259 | 2017-11-30 19:28:18 +0800 | [diff] [blame] | 4197 | dirty_i->dirty_segmap[i] = f2fs_kvzalloc(sbi, bitmap_size, |
| 4198 | GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4199 | if (!dirty_i->dirty_segmap[i]) |
| 4200 | return -ENOMEM; |
| 4201 | } |
| 4202 | |
| 4203 | init_dirty_segmap(sbi); |
Jaegeuk Kim | 5ec4e49 | 2013-03-31 13:26:03 +0900 | [diff] [blame] | 4204 | return init_victim_secmap(sbi); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4205 | } |
| 4206 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 4207 | /* |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4208 | * Update min, max modified time for cost-benefit GC algorithm |
| 4209 | */ |
| 4210 | static void init_min_max_mtime(struct f2fs_sb_info *sbi) |
| 4211 | { |
| 4212 | struct sit_info *sit_i = SIT_I(sbi); |
| 4213 | unsigned int segno; |
| 4214 | |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 4215 | down_write(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4216 | |
Chao Yu | 2089317 | 2018-05-15 18:59:55 +0800 | [diff] [blame] | 4217 | sit_i->min_mtime = ULLONG_MAX; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4218 | |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 4219 | for (segno = 0; segno < MAIN_SEGS(sbi); segno += sbi->segs_per_sec) { |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4220 | unsigned int i; |
| 4221 | unsigned long long mtime = 0; |
| 4222 | |
| 4223 | for (i = 0; i < sbi->segs_per_sec; i++) |
| 4224 | mtime += get_seg_entry(sbi, segno + i)->mtime; |
| 4225 | |
| 4226 | mtime = div_u64(mtime, sbi->segs_per_sec); |
| 4227 | |
| 4228 | if (sit_i->min_mtime > mtime) |
| 4229 | sit_i->min_mtime = mtime; |
| 4230 | } |
Chao Yu | accb406 | 2018-06-04 23:20:17 +0800 | [diff] [blame] | 4231 | sit_i->max_mtime = get_mtime(sbi, false); |
Chao Yu | 25d0bec | 2017-10-30 17:49:53 +0800 | [diff] [blame] | 4232 | up_write(&sit_i->sentry_lock); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4233 | } |
| 4234 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 4235 | int f2fs_build_segment_manager(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4236 | { |
| 4237 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
| 4238 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
Namjae Jeon | 1042d60 | 2012-12-01 10:56:13 +0900 | [diff] [blame] | 4239 | struct f2fs_sm_info *sm_info; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4240 | int err; |
| 4241 | |
Chao Yu | e585ca2 | 2017-11-30 19:28:17 +0800 | [diff] [blame] | 4242 | sm_info = f2fs_kzalloc(sbi, sizeof(struct f2fs_sm_info), GFP_KERNEL); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4243 | if (!sm_info) |
| 4244 | return -ENOMEM; |
| 4245 | |
| 4246 | /* init sm info */ |
| 4247 | sbi->sm_info = sm_info; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4248 | sm_info->seg0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
| 4249 | sm_info->main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); |
| 4250 | sm_info->segment_count = le32_to_cpu(raw_super->segment_count); |
| 4251 | sm_info->reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); |
| 4252 | sm_info->ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
| 4253 | sm_info->main_segments = le32_to_cpu(raw_super->segment_count_main); |
| 4254 | sm_info->ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); |
Jaegeuk Kim | 58c4103 | 2014-03-19 14:17:21 +0900 | [diff] [blame] | 4255 | sm_info->rec_prefree_segments = sm_info->main_segments * |
| 4256 | DEF_RECLAIM_PREFREE_SEGMENTS / 100; |
Jaegeuk Kim | 44a8349 | 2016-07-13 18:23:35 -0700 | [diff] [blame] | 4257 | if (sm_info->rec_prefree_segments > DEF_MAX_RECLAIM_PREFREE_SEGMENTS) |
| 4258 | sm_info->rec_prefree_segments = DEF_MAX_RECLAIM_PREFREE_SEGMENTS; |
| 4259 | |
Jaegeuk Kim | 52763a4 | 2016-06-13 09:47:48 -0700 | [diff] [blame] | 4260 | if (!test_opt(sbi, LFS)) |
| 4261 | sm_info->ipu_policy = 1 << F2FS_IPU_FSYNC; |
Jaegeuk Kim | 216fbd6 | 2013-11-07 13:13:42 +0900 | [diff] [blame] | 4262 | sm_info->min_ipu_util = DEF_MIN_IPU_UTIL; |
Jaegeuk Kim | c1ce1b0 | 2014-09-10 16:53:02 -0700 | [diff] [blame] | 4263 | sm_info->min_fsync_blocks = DEF_MIN_FSYNC_BLOCKS; |
Jaegeuk Kim | 6d59845 | 2018-08-09 17:53:34 -0700 | [diff] [blame] | 4264 | sm_info->min_seq_blocks = sbi->blocks_per_seg * sbi->segs_per_sec; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4265 | sm_info->min_hot_blocks = DEF_MIN_HOT_BLOCKS; |
Chao Yu | b9f7387 | 2017-10-28 16:52:33 +0800 | [diff] [blame] | 4266 | sm_info->min_ssr_sections = reserved_sections(sbi); |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 4267 | |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 4268 | INIT_LIST_HEAD(&sm_info->sit_entry_set); |
| 4269 | |
Chao Yu | 7f41aab | 2017-11-02 20:41:03 +0800 | [diff] [blame] | 4270 | init_rwsem(&sm_info->curseg_lock); |
| 4271 | |
Yunlei He | ad9baf4 | 2017-06-01 16:43:51 +0800 | [diff] [blame] | 4272 | if (!f2fs_readonly(sbi->sb)) { |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 4273 | err = f2fs_create_flush_cmd_control(sbi); |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 4274 | if (err) |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 4275 | return err; |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 4276 | } |
| 4277 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4278 | err = create_discard_cmd_control(sbi); |
| 4279 | if (err) |
| 4280 | return err; |
| 4281 | |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4282 | err = build_sit_info(sbi); |
| 4283 | if (err) |
| 4284 | return err; |
| 4285 | err = build_free_segmap(sbi); |
| 4286 | if (err) |
| 4287 | return err; |
| 4288 | err = build_curseg(sbi); |
| 4289 | if (err) |
| 4290 | return err; |
| 4291 | |
| 4292 | /* reinit free segmap based on SIT */ |
Jaegeuk Kim | 2648e73 | 2017-12-19 19:16:34 -0800 | [diff] [blame] | 4293 | err = build_sit_entries(sbi); |
| 4294 | if (err) |
| 4295 | return err; |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4296 | |
| 4297 | init_free_segmap(sbi); |
| 4298 | err = build_dirty_segmap(sbi); |
| 4299 | if (err) |
| 4300 | return err; |
| 4301 | |
| 4302 | init_min_max_mtime(sbi); |
| 4303 | return 0; |
| 4304 | } |
| 4305 | |
| 4306 | static void discard_dirty_segmap(struct f2fs_sb_info *sbi, |
| 4307 | enum dirty_type dirty_type) |
| 4308 | { |
| 4309 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
| 4310 | |
| 4311 | mutex_lock(&dirty_i->seglist_lock); |
Jaegeuk Kim | 39307a8 | 2015-09-22 13:50:47 -0700 | [diff] [blame] | 4312 | kvfree(dirty_i->dirty_segmap[dirty_type]); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4313 | dirty_i->nr_dirty[dirty_type] = 0; |
| 4314 | mutex_unlock(&dirty_i->seglist_lock); |
| 4315 | } |
| 4316 | |
Jaegeuk Kim | 5ec4e49 | 2013-03-31 13:26:03 +0900 | [diff] [blame] | 4317 | static void destroy_victim_secmap(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4318 | { |
| 4319 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
Jaegeuk Kim | 39307a8 | 2015-09-22 13:50:47 -0700 | [diff] [blame] | 4320 | kvfree(dirty_i->victim_secmap); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4321 | } |
| 4322 | |
| 4323 | static void destroy_dirty_segmap(struct f2fs_sb_info *sbi) |
| 4324 | { |
| 4325 | struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
| 4326 | int i; |
| 4327 | |
| 4328 | if (!dirty_i) |
| 4329 | return; |
| 4330 | |
| 4331 | /* discard pre-free/dirty segments list */ |
| 4332 | for (i = 0; i < NR_DIRTY_TYPE; i++) |
| 4333 | discard_dirty_segmap(sbi, i); |
| 4334 | |
Jaegeuk Kim | 5ec4e49 | 2013-03-31 13:26:03 +0900 | [diff] [blame] | 4335 | destroy_victim_secmap(sbi); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4336 | SM_I(sbi)->dirty_info = NULL; |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4337 | kvfree(dirty_i); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4338 | } |
| 4339 | |
| 4340 | static void destroy_curseg(struct f2fs_sb_info *sbi) |
| 4341 | { |
| 4342 | struct curseg_info *array = SM_I(sbi)->curseg_array; |
| 4343 | int i; |
| 4344 | |
| 4345 | if (!array) |
| 4346 | return; |
| 4347 | SM_I(sbi)->curseg_array = NULL; |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 4348 | for (i = 0; i < NR_CURSEG_TYPE; i++) { |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4349 | kvfree(array[i].sum_blk); |
| 4350 | kvfree(array[i].journal); |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 4351 | } |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4352 | kvfree(array); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4353 | } |
| 4354 | |
| 4355 | static void destroy_free_segmap(struct f2fs_sb_info *sbi) |
| 4356 | { |
| 4357 | struct free_segmap_info *free_i = SM_I(sbi)->free_info; |
| 4358 | if (!free_i) |
| 4359 | return; |
| 4360 | SM_I(sbi)->free_info = NULL; |
Jaegeuk Kim | 39307a8 | 2015-09-22 13:50:47 -0700 | [diff] [blame] | 4361 | kvfree(free_i->free_segmap); |
| 4362 | kvfree(free_i->free_secmap); |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4363 | kvfree(free_i); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4364 | } |
| 4365 | |
| 4366 | static void destroy_sit_info(struct f2fs_sb_info *sbi) |
| 4367 | { |
| 4368 | struct sit_info *sit_i = SIT_I(sbi); |
| 4369 | unsigned int start; |
| 4370 | |
| 4371 | if (!sit_i) |
| 4372 | return; |
| 4373 | |
| 4374 | if (sit_i->sentries) { |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 4375 | for (start = 0; start < MAIN_SEGS(sbi); start++) { |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4376 | kvfree(sit_i->sentries[start].cur_valid_map); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4377 | #ifdef CONFIG_F2FS_CHECK_FS |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4378 | kvfree(sit_i->sentries[start].cur_valid_map_mir); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4379 | #endif |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4380 | kvfree(sit_i->sentries[start].ckpt_valid_map); |
| 4381 | kvfree(sit_i->sentries[start].discard_map); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4382 | } |
| 4383 | } |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4384 | kvfree(sit_i->tmp_map); |
Jaegeuk Kim | 60a3b78 | 2015-02-10 16:44:29 -0800 | [diff] [blame] | 4385 | |
Jaegeuk Kim | 39307a8 | 2015-09-22 13:50:47 -0700 | [diff] [blame] | 4386 | kvfree(sit_i->sentries); |
| 4387 | kvfree(sit_i->sec_entries); |
| 4388 | kvfree(sit_i->dirty_sentries_bitmap); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4389 | |
| 4390 | SM_I(sbi)->sit_info = NULL; |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4391 | kvfree(sit_i->sit_bitmap); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4392 | #ifdef CONFIG_F2FS_CHECK_FS |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4393 | kvfree(sit_i->sit_bitmap_mir); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4394 | #endif |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4395 | kvfree(sit_i); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4396 | } |
| 4397 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 4398 | void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4399 | { |
| 4400 | struct f2fs_sm_info *sm_info = SM_I(sbi); |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 4401 | |
Chao Yu | 3b03f72 | 2013-11-06 09:12:04 +0800 | [diff] [blame] | 4402 | if (!sm_info) |
| 4403 | return; |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 4404 | f2fs_destroy_flush_cmd_control(sbi, true); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4405 | destroy_discard_cmd_control(sbi); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4406 | destroy_dirty_segmap(sbi); |
| 4407 | destroy_curseg(sbi); |
| 4408 | destroy_free_segmap(sbi); |
| 4409 | destroy_sit_info(sbi); |
| 4410 | sbi->sm_info = NULL; |
Jaegeuk Kim | 9248dba | 2018-12-13 18:38:33 -0800 | [diff] [blame] | 4411 | kvfree(sm_info); |
Jaegeuk Kim | 351df4b | 2012-11-02 17:09:16 +0900 | [diff] [blame] | 4412 | } |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 4413 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 4414 | int __init f2fs_create_segment_manager_caches(void) |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 4415 | { |
| 4416 | discard_entry_slab = f2fs_kmem_cache_create("discard_entry", |
Gu Zheng | e8512d2 | 2014-03-07 18:43:28 +0800 | [diff] [blame] | 4417 | sizeof(struct discard_entry)); |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 4418 | if (!discard_entry_slab) |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 4419 | goto fail; |
| 4420 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4421 | discard_cmd_slab = f2fs_kmem_cache_create("discard_cmd", |
| 4422 | sizeof(struct discard_cmd)); |
| 4423 | if (!discard_cmd_slab) |
Chao Yu | 6ab2a30 | 2016-09-05 12:28:26 +0800 | [diff] [blame] | 4424 | goto destroy_discard_entry; |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 4425 | |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 4426 | sit_entry_set_slab = f2fs_kmem_cache_create("sit_entry_set", |
Changman Lee | c9ee008 | 2014-11-21 15:42:07 +0900 | [diff] [blame] | 4427 | sizeof(struct sit_entry_set)); |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 4428 | if (!sit_entry_set_slab) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4429 | goto destroy_discard_cmd; |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 4430 | |
| 4431 | inmem_entry_slab = f2fs_kmem_cache_create("inmem_page_entry", |
| 4432 | sizeof(struct inmem_pages)); |
| 4433 | if (!inmem_entry_slab) |
| 4434 | goto destroy_sit_entry_set; |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 4435 | return 0; |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 4436 | |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 4437 | destroy_sit_entry_set: |
| 4438 | kmem_cache_destroy(sit_entry_set_slab); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4439 | destroy_discard_cmd: |
| 4440 | kmem_cache_destroy(discard_cmd_slab); |
Chao Yu | 6ab2a30 | 2016-09-05 12:28:26 +0800 | [diff] [blame] | 4441 | destroy_discard_entry: |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 4442 | kmem_cache_destroy(discard_entry_slab); |
| 4443 | fail: |
| 4444 | return -ENOMEM; |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 4445 | } |
| 4446 | |
Chao Yu | 6b4d6a8 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 4447 | void f2fs_destroy_segment_manager_caches(void) |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 4448 | { |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 4449 | kmem_cache_destroy(sit_entry_set_slab); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 4450 | kmem_cache_destroy(discard_cmd_slab); |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 4451 | kmem_cache_destroy(discard_entry_slab); |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 4452 | kmem_cache_destroy(inmem_entry_slab); |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 4453 | } |