Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 1 | /* |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2 | * fs/f2fs/f2fs.h |
| 3 | * |
| 4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. |
| 5 | * http://www.samsung.com/ |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | #ifndef _LINUX_F2FS_H |
| 12 | #define _LINUX_F2FS_H |
| 13 | |
| 14 | #include <linux/types.h> |
| 15 | #include <linux/page-flags.h> |
| 16 | #include <linux/buffer_head.h> |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 17 | #include <linux/slab.h> |
| 18 | #include <linux/crc32.h> |
| 19 | #include <linux/magic.h> |
Jaegeuk Kim | c2d715d | 2013-08-08 15:56:49 +0900 | [diff] [blame] | 20 | #include <linux/kobject.h> |
Gu Zheng | 7bd5938 | 2013-10-22 14:52:26 +0800 | [diff] [blame] | 21 | #include <linux/sched.h> |
Jaegeuk Kim | 39307a8 | 2015-09-22 13:50:47 -0700 | [diff] [blame] | 22 | #include <linux/vmalloc.h> |
Jaegeuk Kim | 740432f | 2015-08-14 11:43:56 -0700 | [diff] [blame] | 23 | #include <linux/bio.h> |
Jaegeuk Kim | d0239e1 | 2016-01-08 16:57:48 -0800 | [diff] [blame] | 24 | #include <linux/blkdev.h> |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 25 | #include <linux/fscrypto.h> |
Keith Mok | 43b6573 | 2016-03-02 12:04:24 -0800 | [diff] [blame] | 26 | #include <crypto/hash.h> |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 27 | |
Jaegeuk Kim | 5d56b67 | 2013-10-29 15:14:54 +0900 | [diff] [blame] | 28 | #ifdef CONFIG_F2FS_CHECK_FS |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 29 | #define f2fs_bug_on(sbi, condition) BUG_ON(condition) |
Jaegeuk Kim | 5d56b67 | 2013-10-29 15:14:54 +0900 | [diff] [blame] | 30 | #else |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 31 | #define f2fs_bug_on(sbi, condition) \ |
| 32 | do { \ |
| 33 | if (unlikely(condition)) { \ |
| 34 | WARN_ON(1); \ |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 35 | set_sbi_flag(sbi, SBI_NEED_FSCK); \ |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 36 | } \ |
| 37 | } while (0) |
Jaegeuk Kim | 5d56b67 | 2013-10-29 15:14:54 +0900 | [diff] [blame] | 38 | #endif |
| 39 | |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 40 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
| 41 | enum { |
| 42 | FAULT_KMALLOC, |
Jaegeuk Kim | c41f3cc3 | 2016-04-29 16:17:09 -0700 | [diff] [blame] | 43 | FAULT_PAGE_ALLOC, |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 44 | FAULT_ALLOC_NID, |
| 45 | FAULT_ORPHAN, |
| 46 | FAULT_BLOCK, |
| 47 | FAULT_DIR_DEPTH, |
Jaegeuk Kim | 53aa6bb | 2016-05-25 15:24:18 -0700 | [diff] [blame] | 48 | FAULT_EVICT_INODE, |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 49 | FAULT_MAX, |
| 50 | }; |
| 51 | |
Sheng Yong | 0879689 | 2016-05-16 12:38:50 +0800 | [diff] [blame] | 52 | struct f2fs_fault_info { |
| 53 | atomic_t inject_ops; |
| 54 | unsigned int inject_rate; |
| 55 | unsigned int inject_type; |
| 56 | }; |
| 57 | |
| 58 | extern struct f2fs_fault_info f2fs_fault; |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 59 | extern char *fault_name[FAULT_MAX]; |
Sheng Yong | 0879689 | 2016-05-16 12:38:50 +0800 | [diff] [blame] | 60 | #define IS_FAULT_SET(type) (f2fs_fault.inject_type & (1 << (type))) |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 61 | |
| 62 | static inline bool time_to_inject(int type) |
| 63 | { |
Sheng Yong | 0879689 | 2016-05-16 12:38:50 +0800 | [diff] [blame] | 64 | if (!f2fs_fault.inject_rate) |
| 65 | return false; |
| 66 | if (type == FAULT_KMALLOC && !IS_FAULT_SET(type)) |
| 67 | return false; |
| 68 | else if (type == FAULT_PAGE_ALLOC && !IS_FAULT_SET(type)) |
| 69 | return false; |
| 70 | else if (type == FAULT_ALLOC_NID && !IS_FAULT_SET(type)) |
| 71 | return false; |
| 72 | else if (type == FAULT_ORPHAN && !IS_FAULT_SET(type)) |
| 73 | return false; |
| 74 | else if (type == FAULT_BLOCK && !IS_FAULT_SET(type)) |
| 75 | return false; |
| 76 | else if (type == FAULT_DIR_DEPTH && !IS_FAULT_SET(type)) |
| 77 | return false; |
Jaegeuk Kim | 53aa6bb | 2016-05-25 15:24:18 -0700 | [diff] [blame] | 78 | else if (type == FAULT_EVICT_INODE && !IS_FAULT_SET(type)) |
| 79 | return false; |
Sheng Yong | 0879689 | 2016-05-16 12:38:50 +0800 | [diff] [blame] | 80 | |
| 81 | atomic_inc(&f2fs_fault.inject_ops); |
| 82 | if (atomic_read(&f2fs_fault.inject_ops) >= f2fs_fault.inject_rate) { |
| 83 | atomic_set(&f2fs_fault.inject_ops, 0); |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 84 | printk("%sF2FS-fs : inject %s in %pF\n", |
| 85 | KERN_INFO, |
| 86 | fault_name[type], |
| 87 | __builtin_return_address(0)); |
| 88 | return true; |
| 89 | } |
| 90 | return false; |
| 91 | } |
| 92 | #endif |
| 93 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 94 | /* |
| 95 | * For mount options |
| 96 | */ |
| 97 | #define F2FS_MOUNT_BG_GC 0x00000001 |
| 98 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 |
| 99 | #define F2FS_MOUNT_DISCARD 0x00000004 |
| 100 | #define F2FS_MOUNT_NOHEAP 0x00000008 |
| 101 | #define F2FS_MOUNT_XATTR_USER 0x00000010 |
| 102 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 |
| 103 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 104 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 105 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 106 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 |
| 107 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 |
| 108 | #define F2FS_MOUNT_NOBARRIER 0x00000800 |
Jaegeuk Kim | d5053a34 | 2014-10-30 22:47:03 -0700 | [diff] [blame] | 109 | #define F2FS_MOUNT_FASTBOOT 0x00001000 |
Chao Yu | 8967215 | 2015-02-05 17:55:51 +0800 | [diff] [blame] | 110 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 |
Jaegeuk Kim | 6aefd93 | 2015-10-05 11:02:54 -0700 | [diff] [blame] | 111 | #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 |
Chao Yu | 343f40f | 2015-12-16 13:12:16 +0800 | [diff] [blame] | 112 | #define F2FS_MOUNT_DATA_FLUSH 0x00008000 |
Jaegeuk Kim | 73faec4 | 2016-04-29 15:34:32 -0700 | [diff] [blame] | 113 | #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 |
Jaegeuk Kim | 36abef4 | 2016-06-03 19:29:38 -0700 | [diff] [blame] | 114 | #define F2FS_MOUNT_ADAPTIVE 0x00020000 |
| 115 | #define F2FS_MOUNT_LFS 0x00040000 |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 116 | |
| 117 | #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) |
| 118 | #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) |
| 119 | #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option) |
| 120 | |
| 121 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ |
| 122 | typecheck(unsigned long long, b) && \ |
| 123 | ((long long)((a) - (b)) > 0)) |
| 124 | |
Jaegeuk Kim | a9841c4 | 2013-05-24 12:41:04 +0900 | [diff] [blame] | 125 | typedef u32 block_t; /* |
| 126 | * should not change u32, since it is the on-disk block |
| 127 | * address format, __le32. |
| 128 | */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 129 | typedef u32 nid_t; |
| 130 | |
| 131 | struct f2fs_mount_info { |
| 132 | unsigned int opt; |
| 133 | }; |
| 134 | |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 135 | #define F2FS_FEATURE_ENCRYPT 0x0001 |
Jaegeuk Kim | 52763a4 | 2016-06-13 09:47:48 -0700 | [diff] [blame] | 136 | #define F2FS_FEATURE_HMSMR 0x0002 |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 137 | |
Jaegeuk Kim | 76f105a | 2015-04-13 15:10:36 -0700 | [diff] [blame] | 138 | #define F2FS_HAS_FEATURE(sb, mask) \ |
| 139 | ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) |
| 140 | #define F2FS_SET_FEATURE(sb, mask) \ |
| 141 | F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask) |
| 142 | #define F2FS_CLEAR_FEATURE(sb, mask) \ |
| 143 | F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask) |
| 144 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 145 | /* |
| 146 | * For checkpoint manager |
| 147 | */ |
| 148 | enum { |
| 149 | NAT_BITMAP, |
| 150 | SIT_BITMAP |
| 151 | }; |
| 152 | |
Jaegeuk Kim | 75ab4cb | 2014-09-20 21:57:51 -0700 | [diff] [blame] | 153 | enum { |
| 154 | CP_UMOUNT, |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 155 | CP_FASTBOOT, |
Jaegeuk Kim | 75ab4cb | 2014-09-20 21:57:51 -0700 | [diff] [blame] | 156 | CP_SYNC, |
Jaegeuk Kim | 1002755 | 2015-04-09 17:03:53 -0700 | [diff] [blame] | 157 | CP_RECOVERY, |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 158 | CP_DISCARD, |
Jaegeuk Kim | 75ab4cb | 2014-09-20 21:57:51 -0700 | [diff] [blame] | 159 | }; |
| 160 | |
Jaegeuk Kim | bba681c | 2015-01-26 17:41:23 -0800 | [diff] [blame] | 161 | #define DEF_BATCHED_TRIM_SECTIONS 32 |
| 162 | #define BATCHED_TRIM_SEGMENTS(sbi) \ |
| 163 | (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec) |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 164 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
| 165 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) |
Jaegeuk Kim | 60b99b4 | 2015-10-05 14:49:57 -0700 | [diff] [blame] | 166 | #define DEF_CP_INTERVAL 60 /* 60 secs */ |
Chao Yu | dcf25fe | 2016-07-15 19:25:47 +0800 | [diff] [blame] | 167 | #define DEF_IDLE_INTERVAL 5 /* 5 secs */ |
Jaegeuk Kim | bba681c | 2015-01-26 17:41:23 -0800 | [diff] [blame] | 168 | |
Jaegeuk Kim | 75ab4cb | 2014-09-20 21:57:51 -0700 | [diff] [blame] | 169 | struct cp_control { |
| 170 | int reason; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 171 | __u64 trim_start; |
| 172 | __u64 trim_end; |
| 173 | __u64 trim_minlen; |
| 174 | __u64 trimmed; |
Jaegeuk Kim | 75ab4cb | 2014-09-20 21:57:51 -0700 | [diff] [blame] | 175 | }; |
| 176 | |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 177 | /* |
Chao Yu | 81c1a0f1 | 2014-02-27 19:12:24 +0800 | [diff] [blame] | 178 | * For CP/NAT/SIT/SSA readahead |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 179 | */ |
| 180 | enum { |
| 181 | META_CP, |
| 182 | META_NAT, |
Chao Yu | 81c1a0f1 | 2014-02-27 19:12:24 +0800 | [diff] [blame] | 183 | META_SIT, |
Jaegeuk Kim | 4c521f49 | 2014-09-11 13:49:55 -0700 | [diff] [blame] | 184 | META_SSA, |
| 185 | META_POR, |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 186 | }; |
| 187 | |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 188 | /* for the list of ino */ |
| 189 | enum { |
| 190 | ORPHAN_INO, /* for orphan ino list */ |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 191 | APPEND_INO, /* for append ino list */ |
| 192 | UPDATE_INO, /* for update ino list */ |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 193 | MAX_INO_ENTRY, /* max. list */ |
| 194 | }; |
| 195 | |
| 196 | struct ino_entry { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 197 | struct list_head list; /* list head */ |
| 198 | nid_t ino; /* inode number */ |
| 199 | }; |
| 200 | |
Chao Yu | 2710fd7 | 2015-12-15 13:30:45 +0800 | [diff] [blame] | 201 | /* for the list of inodes to be GCed */ |
Chao Yu | 0629207 | 2014-12-29 15:56:18 +0800 | [diff] [blame] | 202 | struct inode_entry { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 203 | struct list_head list; /* list head */ |
| 204 | struct inode *inode; /* vfs inode pointer */ |
| 205 | }; |
| 206 | |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 207 | /* for the list of blockaddresses to be discarded */ |
| 208 | struct discard_entry { |
| 209 | struct list_head list; /* list head */ |
| 210 | block_t blkaddr; /* block address to be discarded */ |
| 211 | int len; /* # of consecutive blocks of the discard */ |
| 212 | }; |
| 213 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 214 | /* for the list of fsync inodes, used only during recovery */ |
| 215 | struct fsync_inode_entry { |
| 216 | struct list_head list; /* list head */ |
| 217 | struct inode *inode; /* vfs inode pointer */ |
Jaegeuk Kim | c52e1b1 | 2014-09-11 14:29:06 -0700 | [diff] [blame] | 218 | block_t blkaddr; /* block address locating the last fsync */ |
| 219 | block_t last_dentry; /* block address locating the last dentry */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 220 | }; |
| 221 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 222 | #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats)) |
| 223 | #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits)) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 224 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 225 | #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne) |
| 226 | #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid) |
| 227 | #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se) |
| 228 | #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 229 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 230 | #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) |
| 231 | #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) |
Jaegeuk Kim | 309cc2b | 2014-09-22 11:40:48 -0700 | [diff] [blame] | 232 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 233 | static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 234 | { |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 235 | int before = nats_in_cursum(journal); |
| 236 | journal->n_nats = cpu_to_le16(before + i); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 237 | return before; |
| 238 | } |
| 239 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 240 | static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 241 | { |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 242 | int before = sits_in_cursum(journal); |
| 243 | journal->n_sits = cpu_to_le16(before + i); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 244 | return before; |
| 245 | } |
| 246 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 247 | static inline bool __has_cursum_space(struct f2fs_journal *journal, |
| 248 | int size, int type) |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 249 | { |
| 250 | if (type == NAT_JOURNAL) |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 251 | return size <= MAX_NAT_JENTRIES(journal); |
| 252 | return size <= MAX_SIT_JENTRIES(journal); |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 253 | } |
| 254 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 255 | /* |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 256 | * ioctl commands |
| 257 | */ |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 258 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
| 259 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS |
Chao Yu | d49f3e8 | 2015-01-23 20:36:04 +0800 | [diff] [blame] | 260 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 261 | |
| 262 | #define F2FS_IOCTL_MAGIC 0xf5 |
| 263 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) |
| 264 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) |
Jaegeuk Kim | 02a1335 | 2014-10-06 16:11:16 -0700 | [diff] [blame] | 265 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
Jaegeuk Kim | 1e84371 | 2014-12-09 06:08:59 -0800 | [diff] [blame] | 266 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
| 267 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) |
Chao Yu | c1c1b58 | 2015-07-10 18:08:10 +0800 | [diff] [blame] | 268 | #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6) |
Chao Yu | 456b88e | 2015-10-05 22:24:19 +0800 | [diff] [blame] | 269 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) |
Chao Yu | d323d00 | 2015-10-27 09:53:45 +0800 | [diff] [blame] | 270 | #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8) |
Jaegeuk Kim | 4dd6f97 | 2016-07-08 15:16:47 -0700 | [diff] [blame] | 271 | #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ |
| 272 | struct f2fs_move_range) |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 273 | |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 274 | #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY |
| 275 | #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY |
| 276 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT |
Jaegeuk Kim | f424f66 | 2015-04-20 15:19:06 -0700 | [diff] [blame] | 277 | |
Jaegeuk Kim | 1abff93 | 2015-01-08 19:15:53 -0800 | [diff] [blame] | 278 | /* |
| 279 | * should be same as XFS_IOC_GOINGDOWN. |
| 280 | * Flags for going down operation used by FS_IOC_GOINGDOWN |
| 281 | */ |
| 282 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ |
| 283 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ |
| 284 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ |
| 285 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ |
Jaegeuk Kim | c912a82 | 2015-10-07 09:46:37 -0700 | [diff] [blame] | 286 | #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ |
Jaegeuk Kim | 1abff93 | 2015-01-08 19:15:53 -0800 | [diff] [blame] | 287 | |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 288 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
| 289 | /* |
| 290 | * ioctl commands in 32 bit emulation |
| 291 | */ |
Chao Yu | 04ef4b6 | 2015-11-10 18:44:20 +0800 | [diff] [blame] | 292 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS |
| 293 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS |
| 294 | #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 295 | #endif |
| 296 | |
Chao Yu | d323d00 | 2015-10-27 09:53:45 +0800 | [diff] [blame] | 297 | struct f2fs_defragment { |
| 298 | u64 start; |
| 299 | u64 len; |
| 300 | }; |
| 301 | |
Jaegeuk Kim | 4dd6f97 | 2016-07-08 15:16:47 -0700 | [diff] [blame] | 302 | struct f2fs_move_range { |
| 303 | u32 dst_fd; /* destination fd */ |
| 304 | u64 pos_in; /* start position in src_fd */ |
| 305 | u64 pos_out; /* start position in dst_fd */ |
| 306 | u64 len; /* size to move */ |
| 307 | }; |
| 308 | |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 309 | /* |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 310 | * For INODE and NODE manager |
| 311 | */ |
Jaegeuk Kim | 7b3cd7d | 2014-10-18 22:52:52 -0700 | [diff] [blame] | 312 | /* for directory operations */ |
| 313 | struct f2fs_dentry_ptr { |
Jaegeuk Kim | d8c6822 | 2015-04-27 16:26:24 -0700 | [diff] [blame] | 314 | struct inode *inode; |
Jaegeuk Kim | 7b3cd7d | 2014-10-18 22:52:52 -0700 | [diff] [blame] | 315 | const void *bitmap; |
| 316 | struct f2fs_dir_entry *dentry; |
| 317 | __u8 (*filename)[F2FS_SLOT_LEN]; |
| 318 | int max; |
| 319 | }; |
| 320 | |
Jaegeuk Kim | d8c6822 | 2015-04-27 16:26:24 -0700 | [diff] [blame] | 321 | static inline void make_dentry_ptr(struct inode *inode, |
| 322 | struct f2fs_dentry_ptr *d, void *src, int type) |
Jaegeuk Kim | 7b3cd7d | 2014-10-18 22:52:52 -0700 | [diff] [blame] | 323 | { |
Jaegeuk Kim | d8c6822 | 2015-04-27 16:26:24 -0700 | [diff] [blame] | 324 | d->inode = inode; |
| 325 | |
Jaegeuk Kim | 7b3cd7d | 2014-10-18 22:52:52 -0700 | [diff] [blame] | 326 | if (type == 1) { |
| 327 | struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src; |
| 328 | d->max = NR_DENTRY_IN_BLOCK; |
| 329 | d->bitmap = &t->dentry_bitmap; |
| 330 | d->dentry = t->dentry; |
| 331 | d->filename = t->filename; |
| 332 | } else { |
| 333 | struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src; |
| 334 | d->max = NR_INLINE_DENTRY; |
| 335 | d->bitmap = &t->dentry_bitmap; |
| 336 | d->dentry = t->dentry; |
| 337 | d->filename = t->filename; |
| 338 | } |
| 339 | } |
| 340 | |
Jaegeuk Kim | dbe6a5f | 2013-08-09 08:14:06 +0900 | [diff] [blame] | 341 | /* |
| 342 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 |
| 343 | * as its node offset to distinguish from index node blocks. |
| 344 | * But some bits are used to mark the node block. |
| 345 | */ |
| 346 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ |
| 347 | >> OFFSET_BIT_SHIFT) |
Jaegeuk Kim | 266e97a | 2013-02-26 13:10:46 +0900 | [diff] [blame] | 348 | enum { |
| 349 | ALLOC_NODE, /* allocate a new node page if needed */ |
| 350 | LOOKUP_NODE, /* look up a node without readahead */ |
| 351 | LOOKUP_NODE_RA, /* |
| 352 | * look up a node with readahead called |
Chao Yu | 4f4124d | 2013-12-21 18:02:14 +0800 | [diff] [blame] | 353 | * by get_data_block. |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 354 | */ |
Jaegeuk Kim | 266e97a | 2013-02-26 13:10:46 +0900 | [diff] [blame] | 355 | }; |
| 356 | |
Jaegeuk Kim | a6db67f | 2015-08-10 15:01:12 -0700 | [diff] [blame] | 357 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 358 | |
Chao Yu | 817202d9 | 2014-04-28 17:59:43 +0800 | [diff] [blame] | 359 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
| 360 | |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 361 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
| 362 | #define EXT_TREE_VEC_SIZE 64 |
| 363 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 364 | /* for in-memory extent cache entry */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 365 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
| 366 | |
| 367 | /* number of extent info in extent cache we try to shrink */ |
| 368 | #define EXTENT_CACHE_SHRINK_NUMBER 128 |
Jaegeuk Kim | c11abd1 | 2013-11-19 10:41:54 +0900 | [diff] [blame] | 369 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 370 | struct extent_info { |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 371 | unsigned int fofs; /* start offset in a file */ |
| 372 | u32 blk; /* start block address of the extent */ |
| 373 | unsigned int len; /* length of the extent */ |
| 374 | }; |
| 375 | |
| 376 | struct extent_node { |
| 377 | struct rb_node rb_node; /* rb node located in rb-tree */ |
| 378 | struct list_head list; /* node in global extent list of sbi */ |
| 379 | struct extent_info ei; /* extent info */ |
Hou Pengyang | 201ef5e | 2016-01-26 12:56:26 +0000 | [diff] [blame] | 380 | struct extent_tree *et; /* extent tree pointer */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 381 | }; |
| 382 | |
| 383 | struct extent_tree { |
| 384 | nid_t ino; /* inode number */ |
| 385 | struct rb_root root; /* root of extent info rb-tree */ |
Chao Yu | 62c8af6 | 2015-02-05 18:01:39 +0800 | [diff] [blame] | 386 | struct extent_node *cached_en; /* recently accessed extent node */ |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 387 | struct extent_info largest; /* largested extent info */ |
Jaegeuk Kim | 137d09f | 2015-12-31 15:02:16 -0800 | [diff] [blame] | 388 | struct list_head list; /* to be used by sbi->zombie_list */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 389 | rwlock_t lock; /* protect extent info rb-tree */ |
Chao Yu | 68e3538 | 2016-01-08 20:22:52 +0800 | [diff] [blame] | 390 | atomic_t node_cnt; /* # of extent node in rb-tree*/ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 391 | }; |
| 392 | |
| 393 | /* |
Jaegeuk Kim | 003a3e1 | 2015-04-06 19:55:34 -0700 | [diff] [blame] | 394 | * This structure is taken from ext4_map_blocks. |
| 395 | * |
| 396 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). |
| 397 | */ |
| 398 | #define F2FS_MAP_NEW (1 << BH_New) |
| 399 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) |
Jaegeuk Kim | 7f63eb7 | 2015-05-08 19:30:32 -0700 | [diff] [blame] | 400 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) |
| 401 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ |
| 402 | F2FS_MAP_UNWRITTEN) |
Jaegeuk Kim | 003a3e1 | 2015-04-06 19:55:34 -0700 | [diff] [blame] | 403 | |
| 404 | struct f2fs_map_blocks { |
| 405 | block_t m_pblk; |
| 406 | block_t m_lblk; |
| 407 | unsigned int m_len; |
| 408 | unsigned int m_flags; |
Chao Yu | da85985 | 2016-01-26 15:42:58 +0800 | [diff] [blame] | 409 | pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ |
Jaegeuk Kim | 003a3e1 | 2015-04-06 19:55:34 -0700 | [diff] [blame] | 410 | }; |
| 411 | |
Chao Yu | e2b4e2b | 2015-08-19 19:11:19 +0800 | [diff] [blame] | 412 | /* for flag in get_data_block */ |
| 413 | #define F2FS_GET_BLOCK_READ 0 |
| 414 | #define F2FS_GET_BLOCK_DIO 1 |
| 415 | #define F2FS_GET_BLOCK_FIEMAP 2 |
| 416 | #define F2FS_GET_BLOCK_BMAP 3 |
Jaegeuk Kim | b439b10 | 2016-02-03 13:09:09 -0800 | [diff] [blame] | 417 | #define F2FS_GET_BLOCK_PRE_DIO 4 |
Jaegeuk Kim | 24b8491 | 2016-02-03 13:49:44 -0800 | [diff] [blame] | 418 | #define F2FS_GET_BLOCK_PRE_AIO 5 |
Chao Yu | e2b4e2b | 2015-08-19 19:11:19 +0800 | [diff] [blame] | 419 | |
Jaegeuk Kim | 003a3e1 | 2015-04-06 19:55:34 -0700 | [diff] [blame] | 420 | /* |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 421 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. |
| 422 | */ |
| 423 | #define FADVISE_COLD_BIT 0x01 |
Jaegeuk Kim | 354a339 | 2013-06-14 08:52:35 +0900 | [diff] [blame] | 424 | #define FADVISE_LOST_PINO_BIT 0x02 |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 425 | #define FADVISE_ENCRYPT_BIT 0x04 |
Jaegeuk Kim | e7d5545 | 2015-04-29 17:02:18 -0700 | [diff] [blame] | 426 | #define FADVISE_ENC_NAME_BIT 0x08 |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 427 | |
Jaegeuk Kim | b5492af | 2015-04-20 13:44:41 -0700 | [diff] [blame] | 428 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
| 429 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) |
| 430 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) |
| 431 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) |
| 432 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) |
| 433 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 434 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) |
| 435 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) |
| 436 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) |
Jaegeuk Kim | e7d5545 | 2015-04-29 17:02:18 -0700 | [diff] [blame] | 437 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) |
| 438 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 439 | |
Jaegeuk Kim | ab9fa66 | 2014-02-27 20:09:05 +0900 | [diff] [blame] | 440 | #define DEF_DIR_LEVEL 0 |
| 441 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 442 | struct f2fs_inode_info { |
| 443 | struct inode vfs_inode; /* serve a vfs inode */ |
| 444 | unsigned long i_flags; /* keep an inode flags for ioctl */ |
| 445 | unsigned char i_advise; /* use to give file attribute hints */ |
Jaegeuk Kim | 3843154 | 2014-02-27 18:20:00 +0900 | [diff] [blame] | 446 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 447 | unsigned int i_current_depth; /* use only in directory structure */ |
Jaegeuk Kim | 6666e6a | 2012-12-10 17:52:48 +0900 | [diff] [blame] | 448 | unsigned int i_pino; /* parent inode number */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 449 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
| 450 | |
| 451 | /* Use below internally in f2fs*/ |
| 452 | unsigned long flags; /* use to pass per-file flags */ |
Jaegeuk Kim | d928bfb | 2014-03-20 19:10:08 +0900 | [diff] [blame] | 453 | struct rw_semaphore i_sem; /* protect fi info */ |
Jaegeuk Kim | 1beba1b | 2016-05-13 12:47:11 -0700 | [diff] [blame] | 454 | struct percpu_counter dirty_pages; /* # of dirty pages */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 455 | f2fs_hash_t chash; /* hash value of given file name */ |
| 456 | unsigned int clevel; /* maximum level of given file name */ |
| 457 | nid_t i_xattr_nid; /* node id that contains xattrs */ |
Jaegeuk Kim | e518ff8 | 2013-08-09 14:46:15 +0900 | [diff] [blame] | 458 | unsigned long long xattr_ver; /* cp version of xattr modification */ |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 459 | loff_t last_disk_size; /* lastly written file size */ |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 460 | |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 461 | struct list_head dirty_list; /* dirty list for dirs and files */ |
| 462 | struct list_head gdirty_list; /* linked in global dirty list */ |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 463 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ |
| 464 | struct mutex inmem_lock; /* lock for inmemory pages */ |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 465 | struct extent_tree *extent_tree; /* cached extent_tree entry */ |
Chao Yu | 82e0a5a | 2016-07-13 09:18:29 +0800 | [diff] [blame] | 466 | struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 467 | }; |
| 468 | |
| 469 | static inline void get_extent_info(struct extent_info *ext, |
Chao Yu | bd933d4 | 2016-05-04 23:19:47 +0800 | [diff] [blame] | 470 | struct f2fs_extent *i_ext) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 471 | { |
Chao Yu | bd933d4 | 2016-05-04 23:19:47 +0800 | [diff] [blame] | 472 | ext->fofs = le32_to_cpu(i_ext->fofs); |
| 473 | ext->blk = le32_to_cpu(i_ext->blk); |
| 474 | ext->len = le32_to_cpu(i_ext->len); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 475 | } |
| 476 | |
| 477 | static inline void set_raw_extent(struct extent_info *ext, |
| 478 | struct f2fs_extent *i_ext) |
| 479 | { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 480 | i_ext->fofs = cpu_to_le32(ext->fofs); |
Chao Yu | 4d0b0bd | 2015-02-05 17:47:25 +0800 | [diff] [blame] | 481 | i_ext->blk = cpu_to_le32(ext->blk); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 482 | i_ext->len = cpu_to_le32(ext->len); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 483 | } |
| 484 | |
Chao Yu | 429511c | 2015-02-05 17:54:31 +0800 | [diff] [blame] | 485 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
| 486 | u32 blk, unsigned int len) |
| 487 | { |
| 488 | ei->fofs = fofs; |
| 489 | ei->blk = blk; |
| 490 | ei->len = len; |
| 491 | } |
| 492 | |
Chao Yu | 0bdee48 | 2015-03-19 19:27:51 +0800 | [diff] [blame] | 493 | static inline bool __is_extent_same(struct extent_info *ei1, |
| 494 | struct extent_info *ei2) |
| 495 | { |
| 496 | return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk && |
| 497 | ei1->len == ei2->len); |
| 498 | } |
| 499 | |
Chao Yu | 429511c | 2015-02-05 17:54:31 +0800 | [diff] [blame] | 500 | static inline bool __is_extent_mergeable(struct extent_info *back, |
| 501 | struct extent_info *front) |
| 502 | { |
| 503 | return (back->fofs + back->len == front->fofs && |
| 504 | back->blk + back->len == front->blk); |
| 505 | } |
| 506 | |
| 507 | static inline bool __is_back_mergeable(struct extent_info *cur, |
| 508 | struct extent_info *back) |
| 509 | { |
| 510 | return __is_extent_mergeable(back, cur); |
| 511 | } |
| 512 | |
| 513 | static inline bool __is_front_mergeable(struct extent_info *cur, |
| 514 | struct extent_info *front) |
| 515 | { |
| 516 | return __is_extent_mergeable(cur, front); |
| 517 | } |
| 518 | |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 519 | extern void f2fs_mark_inode_dirty_sync(struct inode *); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 520 | static inline void __try_update_largest_extent(struct inode *inode, |
| 521 | struct extent_tree *et, struct extent_node *en) |
Chao Yu | 4abd3f5 | 2015-09-22 21:07:47 +0800 | [diff] [blame] | 522 | { |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 523 | if (en->ei.len > et->largest.len) { |
Chao Yu | 4abd3f5 | 2015-09-22 21:07:47 +0800 | [diff] [blame] | 524 | et->largest = en->ei; |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 525 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 526 | } |
Chao Yu | 4abd3f5 | 2015-09-22 21:07:47 +0800 | [diff] [blame] | 527 | } |
| 528 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 529 | struct f2fs_nm_info { |
| 530 | block_t nat_blkaddr; /* base disk address of NAT */ |
| 531 | nid_t max_nid; /* maximum possible node ids */ |
Jaegeuk Kim | 7ee0eea | 2014-04-18 11:14:37 +0900 | [diff] [blame] | 532 | nid_t available_nids; /* maximum available node ids */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 533 | nid_t next_scan_nid; /* the next nid to be scanned */ |
Jaegeuk Kim | cdfc41c | 2014-03-19 13:31:37 +0900 | [diff] [blame] | 534 | unsigned int ram_thresh; /* control the memory footprint */ |
Chao Yu | ea1a29a0 | 2015-10-12 17:08:48 +0800 | [diff] [blame] | 535 | unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ |
Chao Yu | 2304cb0 | 2016-01-18 18:32:58 +0800 | [diff] [blame] | 536 | unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 537 | |
| 538 | /* NAT cache management */ |
| 539 | struct radix_tree_root nat_root;/* root of the nat entry cache */ |
Jaegeuk Kim | 309cc2b | 2014-09-22 11:40:48 -0700 | [diff] [blame] | 540 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
Jaegeuk Kim | ec79541 | 2016-06-30 19:59:11 -0700 | [diff] [blame] | 541 | struct percpu_rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 542 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
Jaegeuk Kim | 309cc2b | 2014-09-22 11:40:48 -0700 | [diff] [blame] | 543 | unsigned int nat_cnt; /* the # of cached nat entries */ |
Chao Yu | aec7138 | 2014-06-24 09:18:20 +0800 | [diff] [blame] | 544 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 545 | |
| 546 | /* free node ids management */ |
Jaegeuk Kim | 8a7ed66 | 2014-02-21 14:29:35 +0900 | [diff] [blame] | 547 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 548 | struct list_head free_nid_list; /* a list for free nids */ |
| 549 | spinlock_t free_nid_list_lock; /* protect free nid list */ |
| 550 | unsigned int fcnt; /* the number of free node id */ |
| 551 | struct mutex build_lock; /* lock for build free nids */ |
| 552 | |
| 553 | /* for checkpoint */ |
| 554 | char *nat_bitmap; /* NAT bitmap pointer */ |
| 555 | int bitmap_size; /* bitmap size */ |
| 556 | }; |
| 557 | |
| 558 | /* |
| 559 | * this structure is used as one of function parameters. |
| 560 | * all the information are dedicated to a given direct node block determined |
| 561 | * by the data offset in a file. |
| 562 | */ |
| 563 | struct dnode_of_data { |
| 564 | struct inode *inode; /* vfs inode pointer */ |
| 565 | struct page *inode_page; /* its inode page, NULL is possible */ |
| 566 | struct page *node_page; /* cached direct node page */ |
| 567 | nid_t nid; /* node id of the direct node block */ |
| 568 | unsigned int ofs_in_node; /* data offset in the node page */ |
| 569 | bool inode_page_locked; /* inode page is locked or not */ |
Jaegeuk Kim | 93bae09 | 2015-12-22 12:59:54 -0800 | [diff] [blame] | 570 | bool node_changed; /* is node block changed */ |
Chao Yu | 3cf4574 | 2016-01-26 15:40:44 +0800 | [diff] [blame] | 571 | char cur_level; /* level of hole node page */ |
| 572 | char max_level; /* level of current page located */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 573 | block_t data_blkaddr; /* block address of the node block */ |
| 574 | }; |
| 575 | |
| 576 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, |
| 577 | struct page *ipage, struct page *npage, nid_t nid) |
| 578 | { |
Jaegeuk Kim | d66d1f7 | 2013-01-03 08:57:21 +0900 | [diff] [blame] | 579 | memset(dn, 0, sizeof(*dn)); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 580 | dn->inode = inode; |
| 581 | dn->inode_page = ipage; |
| 582 | dn->node_page = npage; |
| 583 | dn->nid = nid; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 584 | } |
| 585 | |
| 586 | /* |
| 587 | * For SIT manager |
| 588 | * |
| 589 | * By default, there are 6 active log areas across the whole main area. |
| 590 | * When considering hot and cold data separation to reduce cleaning overhead, |
| 591 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, |
| 592 | * respectively. |
| 593 | * In the current design, you should not change the numbers intentionally. |
| 594 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 |
| 595 | * logs individually according to the underlying devices. (default: 6) |
| 596 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for |
| 597 | * data and 8 for node logs. |
| 598 | */ |
| 599 | #define NR_CURSEG_DATA_TYPE (3) |
| 600 | #define NR_CURSEG_NODE_TYPE (3) |
| 601 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) |
| 602 | |
| 603 | enum { |
| 604 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ |
| 605 | CURSEG_WARM_DATA, /* data blocks */ |
| 606 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ |
| 607 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ |
| 608 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ |
| 609 | CURSEG_COLD_NODE, /* indirect node blocks */ |
Jaegeuk Kim | 38aa088 | 2015-01-05 16:02:20 -0800 | [diff] [blame] | 610 | NO_CHECK_TYPE, |
| 611 | CURSEG_DIRECT_IO, /* to use for the direct IO path */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 612 | }; |
| 613 | |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 614 | struct flush_cmd { |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 615 | struct completion wait; |
Gu Zheng | 721bd4d | 2014-09-05 18:31:00 +0800 | [diff] [blame] | 616 | struct llist_node llnode; |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 617 | int ret; |
| 618 | }; |
| 619 | |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 620 | struct flush_cmd_control { |
| 621 | struct task_struct *f2fs_issue_flush; /* flush thread */ |
| 622 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ |
Jaegeuk Kim | 0a87f66 | 2016-05-23 12:04:56 -0700 | [diff] [blame] | 623 | atomic_t submit_flush; /* # of issued flushes */ |
Gu Zheng | 721bd4d | 2014-09-05 18:31:00 +0800 | [diff] [blame] | 624 | struct llist_head issue_list; /* list for command issue */ |
| 625 | struct llist_node *dispatch_list; /* list for command dispatch */ |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 626 | }; |
| 627 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 628 | struct f2fs_sm_info { |
| 629 | struct sit_info *sit_info; /* whole segment information */ |
| 630 | struct free_segmap_info *free_info; /* free segment information */ |
| 631 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ |
| 632 | struct curseg_info *curseg_array; /* active segment information */ |
| 633 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 634 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
| 635 | block_t main_blkaddr; /* start block address of main area */ |
| 636 | block_t ssa_blkaddr; /* start block address of SSA area */ |
| 637 | |
| 638 | unsigned int segment_count; /* total # of segments */ |
| 639 | unsigned int main_segments; /* # of segments in main area */ |
| 640 | unsigned int reserved_segments; /* # of reserved segments */ |
| 641 | unsigned int ovp_segments; /* # of overprovision segments */ |
Jaegeuk Kim | 81eb8d6 | 2013-10-24 13:31:34 +0900 | [diff] [blame] | 642 | |
| 643 | /* a threshold to reclaim prefree segments */ |
| 644 | unsigned int rec_prefree_segments; |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 645 | |
| 646 | /* for small discard management */ |
| 647 | struct list_head discard_list; /* 4KB discard list */ |
| 648 | int nr_discards; /* # of discards in the list */ |
| 649 | int max_discards; /* max. discards to be issued */ |
Jaegeuk Kim | 216fbd6 | 2013-11-07 13:13:42 +0900 | [diff] [blame] | 650 | |
Jaegeuk Kim | bba681c | 2015-01-26 17:41:23 -0800 | [diff] [blame] | 651 | /* for batched trimming */ |
| 652 | unsigned int trim_sections; /* # of sections to trim */ |
| 653 | |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 654 | struct list_head sit_entry_set; /* sit entry set list */ |
| 655 | |
Jaegeuk Kim | 216fbd6 | 2013-11-07 13:13:42 +0900 | [diff] [blame] | 656 | unsigned int ipu_policy; /* in-place-update policy */ |
| 657 | unsigned int min_ipu_util; /* in-place-update threshold */ |
Jaegeuk Kim | c1ce1b0 | 2014-09-10 16:53:02 -0700 | [diff] [blame] | 658 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 659 | |
| 660 | /* for flush command control */ |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 661 | struct flush_cmd_control *cmd_control_info; |
| 662 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 663 | }; |
| 664 | |
| 665 | /* |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 666 | * For superblock |
| 667 | */ |
| 668 | /* |
| 669 | * COUNT_TYPE for monitoring |
| 670 | * |
| 671 | * f2fs monitors the number of several block types such as on-writeback, |
| 672 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. |
| 673 | */ |
| 674 | enum count_type { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 675 | F2FS_DIRTY_DENTS, |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 676 | F2FS_DIRTY_DATA, |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 677 | F2FS_DIRTY_NODES, |
| 678 | F2FS_DIRTY_META, |
Jaegeuk Kim | 8dcf2ff7 | 2014-12-05 17:18:15 -0800 | [diff] [blame] | 679 | F2FS_INMEM_PAGES, |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 680 | F2FS_DIRTY_IMETA, |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 681 | NR_COUNT_TYPE, |
| 682 | }; |
| 683 | |
| 684 | /* |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 685 | * The below are the page types of bios used in submit_bio(). |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 686 | * The available types are: |
| 687 | * DATA User data pages. It operates as async mode. |
| 688 | * NODE Node pages. It operates as async mode. |
| 689 | * META FS metadata pages such as SIT, NAT, CP. |
| 690 | * NR_PAGE_TYPE The number of page types. |
| 691 | * META_FLUSH Make sure the previous pages are written |
| 692 | * with waiting the bio's completion |
| 693 | * ... Only can be used with META. |
| 694 | */ |
Jaegeuk Kim | 7d5e510 | 2013-11-18 17:13:35 +0900 | [diff] [blame] | 695 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 696 | enum page_type { |
| 697 | DATA, |
| 698 | NODE, |
| 699 | META, |
| 700 | NR_PAGE_TYPE, |
| 701 | META_FLUSH, |
Jaegeuk Kim | 8ce67cb | 2015-03-17 17:58:08 -0700 | [diff] [blame] | 702 | INMEM, /* the below types are used by tracepoints only. */ |
| 703 | INMEM_DROP, |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 704 | INMEM_REVOKE, |
Jaegeuk Kim | 8ce67cb | 2015-03-17 17:58:08 -0700 | [diff] [blame] | 705 | IPU, |
| 706 | OPU, |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 707 | }; |
| 708 | |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 709 | struct f2fs_io_info { |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 710 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
Gu Zheng | 7e8f230 | 2013-12-20 18:17:49 +0800 | [diff] [blame] | 711 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
Mike Christie | 04d328d | 2016-06-05 14:31:55 -0500 | [diff] [blame] | 712 | int op; /* contains REQ_OP_ */ |
| 713 | int op_flags; /* rq_flag_bits */ |
Chao Yu | 7a9d754 | 2016-02-22 18:36:38 +0800 | [diff] [blame] | 714 | block_t new_blkaddr; /* new block address to be written */ |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 715 | block_t old_blkaddr; /* old block address before Cow */ |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 716 | struct page *page; /* page to be written */ |
Jaegeuk Kim | 4375a33 | 2015-04-23 12:04:33 -0700 | [diff] [blame] | 717 | struct page *encrypted_page; /* encrypted page */ |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 718 | }; |
| 719 | |
Mike Christie | 04d328d | 2016-06-05 14:31:55 -0500 | [diff] [blame] | 720 | #define is_read_io(rw) (rw == READ) |
Jaegeuk Kim | 1ff7bd3 | 2013-11-19 12:47:22 +0900 | [diff] [blame] | 721 | struct f2fs_bio_info { |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 722 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
Jaegeuk Kim | 1ff7bd3 | 2013-11-19 12:47:22 +0900 | [diff] [blame] | 723 | struct bio *bio; /* bios to merge */ |
| 724 | sector_t last_block_in_bio; /* last block number */ |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 725 | struct f2fs_io_info fio; /* store buffered io info. */ |
Chao Yu | df0f8dc | 2014-03-22 14:57:23 +0800 | [diff] [blame] | 726 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
Jaegeuk Kim | 1ff7bd3 | 2013-11-19 12:47:22 +0900 | [diff] [blame] | 727 | }; |
| 728 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 729 | enum inode_type { |
| 730 | DIR_INODE, /* for dirty dir inode */ |
| 731 | FILE_INODE, /* for dirty regular/symlink inode */ |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 732 | DIRTY_META, /* for all dirtied inode metadata */ |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 733 | NR_INODE_TYPE, |
| 734 | }; |
| 735 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 736 | /* for inner inode cache management */ |
| 737 | struct inode_management { |
| 738 | struct radix_tree_root ino_root; /* ino entry array */ |
| 739 | spinlock_t ino_lock; /* for ino entry lock */ |
| 740 | struct list_head ino_list; /* inode list head */ |
| 741 | unsigned long ino_num; /* number of entries */ |
| 742 | }; |
| 743 | |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 744 | /* For s_flag in struct f2fs_sb_info */ |
| 745 | enum { |
| 746 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ |
| 747 | SBI_IS_CLOSE, /* specify unmounting */ |
| 748 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ |
| 749 | SBI_POR_DOING, /* recovery is doing or not */ |
Jaegeuk Kim | df728b0 | 2016-03-23 17:05:27 -0700 | [diff] [blame] | 750 | SBI_NEED_SB_WRITE, /* need to recover superblock */ |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 751 | }; |
| 752 | |
Jaegeuk Kim | 6beceb5 | 2016-01-08 15:51:50 -0800 | [diff] [blame] | 753 | enum { |
| 754 | CP_TIME, |
Jaegeuk Kim | d0239e1 | 2016-01-08 16:57:48 -0800 | [diff] [blame] | 755 | REQ_TIME, |
Jaegeuk Kim | 6beceb5 | 2016-01-08 15:51:50 -0800 | [diff] [blame] | 756 | MAX_TIME, |
| 757 | }; |
| 758 | |
Jaegeuk Kim | b5a7aef | 2016-05-04 22:05:01 -0700 | [diff] [blame] | 759 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
| 760 | #define F2FS_KEY_DESC_PREFIX "f2fs:" |
| 761 | #define F2FS_KEY_DESC_PREFIX_SIZE 5 |
| 762 | #endif |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 763 | struct f2fs_sb_info { |
| 764 | struct super_block *sb; /* pointer to VFS super block */ |
Jaegeuk Kim | 5e176d5 | 2013-06-28 12:47:01 +0900 | [diff] [blame] | 765 | struct proc_dir_entry *s_proc; /* proc entry */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 766 | struct f2fs_super_block *raw_super; /* raw super block pointer */ |
Chao Yu | e8240f6 | 2015-12-15 17:19:26 +0800 | [diff] [blame] | 767 | int valid_super_block; /* valid super block no */ |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 768 | int s_flag; /* flags for sbi */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 769 | |
Jaegeuk Kim | b5a7aef | 2016-05-04 22:05:01 -0700 | [diff] [blame] | 770 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
| 771 | u8 key_prefix[F2FS_KEY_DESC_PREFIX_SIZE]; |
| 772 | u8 key_prefix_size; |
| 773 | #endif |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 774 | /* for node-related operations */ |
| 775 | struct f2fs_nm_info *nm_info; /* node manager */ |
| 776 | struct inode *node_inode; /* cache node blocks */ |
| 777 | |
| 778 | /* for segment-related operations */ |
| 779 | struct f2fs_sm_info *sm_info; /* segment manager */ |
Jaegeuk Kim | 1ff7bd3 | 2013-11-19 12:47:22 +0900 | [diff] [blame] | 780 | |
| 781 | /* for bio operations */ |
Chao Yu | 924b720 | 2013-11-20 14:46:39 +0800 | [diff] [blame] | 782 | struct f2fs_bio_info read_io; /* for read bios */ |
Jaegeuk Kim | 1ff7bd3 | 2013-11-19 12:47:22 +0900 | [diff] [blame] | 783 | struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ |
Jaegeuk Kim | 7dfeaa3 | 2016-06-04 14:21:28 -0700 | [diff] [blame] | 784 | struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 785 | |
| 786 | /* for checkpoint */ |
| 787 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ |
| 788 | struct inode *meta_inode; /* cache meta blocks */ |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 789 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
Jaegeuk Kim | ec79541 | 2016-06-30 19:59:11 -0700 | [diff] [blame] | 790 | struct percpu_rw_semaphore cp_rwsem; /* blocking FS operations */ |
Chao Yu | b3582c6 | 2014-07-03 18:58:39 +0800 | [diff] [blame] | 791 | struct rw_semaphore node_write; /* locking node writes */ |
Changman Lee | fb51b5e | 2013-11-07 12:48:25 +0900 | [diff] [blame] | 792 | wait_queue_head_t cp_wait; |
Jaegeuk Kim | 6beceb5 | 2016-01-08 15:51:50 -0800 | [diff] [blame] | 793 | unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ |
| 794 | long interval_time[MAX_TIME]; /* to store thresholds */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 795 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 796 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 797 | |
| 798 | /* for orphan inode, use 0'th array */ |
Gu Zheng | 0d47c1a | 2013-12-26 18:24:19 +0800 | [diff] [blame] | 799 | unsigned int max_orphans; /* max orphan inodes */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 800 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 801 | /* for inode management */ |
| 802 | struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ |
| 803 | spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 804 | |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 805 | /* for extent tree cache */ |
| 806 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ |
| 807 | struct rw_semaphore extent_tree_lock; /* locking extent radix tree */ |
| 808 | struct list_head extent_list; /* lru list for shrinker */ |
| 809 | spinlock_t extent_lock; /* locking extent lru list */ |
Jaegeuk Kim | 7441cce | 2015-12-21 19:20:15 -0800 | [diff] [blame] | 810 | atomic_t total_ext_tree; /* extent tree count */ |
Jaegeuk Kim | 137d09f | 2015-12-31 15:02:16 -0800 | [diff] [blame] | 811 | struct list_head zombie_list; /* extent zombie tree list */ |
Jaegeuk Kim | 74fd8d9 | 2015-12-21 19:25:50 -0800 | [diff] [blame] | 812 | atomic_t total_zombie_tree; /* extent zombie tree count */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 813 | atomic_t total_ext_node; /* extent info count */ |
| 814 | |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 815 | /* basic filesystem units */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 816 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
| 817 | unsigned int log_blocksize; /* log2 block size */ |
| 818 | unsigned int blocksize; /* block size */ |
| 819 | unsigned int root_ino_num; /* root inode number*/ |
| 820 | unsigned int node_ino_num; /* node inode number*/ |
| 821 | unsigned int meta_ino_num; /* meta inode number*/ |
| 822 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ |
| 823 | unsigned int blocks_per_seg; /* blocks per segment */ |
| 824 | unsigned int segs_per_sec; /* segments per section */ |
| 825 | unsigned int secs_per_zone; /* sections per zone */ |
| 826 | unsigned int total_sections; /* total section count */ |
| 827 | unsigned int total_node_count; /* total node block count */ |
| 828 | unsigned int total_valid_node_count; /* valid node block count */ |
Chao Yu | e0afc4d | 2015-12-31 14:35:37 +0800 | [diff] [blame] | 829 | loff_t max_file_blocks; /* max block index of file */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 830 | int active_logs; /* # of active logs */ |
Jaegeuk Kim | ab9fa66 | 2014-02-27 20:09:05 +0900 | [diff] [blame] | 831 | int dir_level; /* directory level */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 832 | |
| 833 | block_t user_block_count; /* # of user blocks */ |
| 834 | block_t total_valid_block_count; /* # of valid blocks */ |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 835 | block_t discard_blks; /* discard command candidats */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 836 | block_t last_valid_block_count; /* for recovery */ |
| 837 | u32 s_next_generation; /* for NFS support */ |
Jaegeuk Kim | f573018 | 2016-05-17 16:23:36 -0700 | [diff] [blame] | 838 | atomic_t nr_wb_bios; /* # of writeback bios */ |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 839 | |
| 840 | /* # of pages, see count_type */ |
| 841 | struct percpu_counter nr_pages[NR_COUNT_TYPE]; |
Jaegeuk Kim | 41382ec | 2016-05-16 11:06:50 -0700 | [diff] [blame] | 842 | /* # of allocated blocks */ |
| 843 | struct percpu_counter alloc_valid_block_count; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 844 | |
Jaegeuk Kim | 513c5f3 | 2016-05-16 11:42:32 -0700 | [diff] [blame] | 845 | /* valid inode count */ |
| 846 | struct percpu_counter total_valid_inode_count; |
| 847 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 848 | struct f2fs_mount_info mount_opt; /* mount options */ |
| 849 | |
| 850 | /* for cleaning operations */ |
| 851 | struct mutex gc_mutex; /* mutex for GC */ |
| 852 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ |
Jaegeuk Kim | 5ec4e49 | 2013-03-31 13:26:03 +0900 | [diff] [blame] | 853 | unsigned int cur_victim_sec; /* current victim section num */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 854 | |
Jaegeuk Kim | b1c57c1 | 2014-01-08 13:45:08 +0900 | [diff] [blame] | 855 | /* maximum # of trials to find a victim segment for SSR and GC */ |
| 856 | unsigned int max_victim_search; |
| 857 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 858 | /* |
| 859 | * for stat information. |
| 860 | * one is for the LFS mode, and the other is for the SSR mode. |
| 861 | */ |
Namjae Jeon | 35b09d8 | 2013-05-23 22:57:53 +0900 | [diff] [blame] | 862 | #ifdef CONFIG_F2FS_STAT_FS |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 863 | struct f2fs_stat_info *stat_info; /* FS status information */ |
| 864 | unsigned int segment_count[2]; /* # of allocated segments */ |
| 865 | unsigned int block_count[2]; /* # of allocated blocks */ |
Changman Lee | b9a2c25 | 2014-12-24 02:16:54 +0900 | [diff] [blame] | 866 | atomic_t inplace_count; /* # of inplace update */ |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 867 | atomic64_t total_hit_ext; /* # of lookup extent cache */ |
| 868 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ |
| 869 | atomic64_t read_hit_largest; /* # of hit largest extent node */ |
| 870 | atomic64_t read_hit_cached; /* # of hit cached extent node */ |
Chao Yu | d5e8f6c | 2015-07-15 17:28:53 +0800 | [diff] [blame] | 871 | atomic_t inline_xattr; /* # of inline_xattr inodes */ |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 872 | atomic_t inline_inode; /* # of inline_data inodes */ |
| 873 | atomic_t inline_dir; /* # of inline_dentry inodes */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 874 | int bg_gc; /* background gc calls */ |
Chao Yu | 33fbd51 | 2015-12-17 17:14:44 +0800 | [diff] [blame] | 875 | unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ |
Namjae Jeon | 35b09d8 | 2013-05-23 22:57:53 +0900 | [diff] [blame] | 876 | #endif |
| 877 | unsigned int last_victim[2]; /* last victim segment # */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 878 | spinlock_t stat_lock; /* lock for stat operations */ |
Namjae Jeon | b59d0ba | 2013-08-04 23:09:40 +0900 | [diff] [blame] | 879 | |
| 880 | /* For sysfs suppport */ |
| 881 | struct kobject s_kobj; |
| 882 | struct completion s_kobj_unregister; |
Jaegeuk Kim | 2658e50 | 2015-06-19 12:01:21 -0700 | [diff] [blame] | 883 | |
| 884 | /* For shrinker support */ |
| 885 | struct list_head s_list; |
| 886 | struct mutex umount_mutex; |
| 887 | unsigned int shrinker_run_no; |
Shuoran Liu | 8f1dbbb | 2016-01-27 09:57:30 +0800 | [diff] [blame] | 888 | |
| 889 | /* For write statistics */ |
| 890 | u64 sectors_written_start; |
| 891 | u64 kbytes_written; |
Keith Mok | 43b6573 | 2016-03-02 12:04:24 -0800 | [diff] [blame] | 892 | |
| 893 | /* Reference to checksum algorithm driver via cryptoapi */ |
| 894 | struct crypto_shash *s_chksum_driver; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 895 | }; |
| 896 | |
Shuoran Liu | 8f1dbbb | 2016-01-27 09:57:30 +0800 | [diff] [blame] | 897 | /* For write statistics. Suppose sector size is 512 bytes, |
| 898 | * and the return value is in kbytes. s is of struct f2fs_sb_info. |
| 899 | */ |
| 900 | #define BD_PART_WRITTEN(s) \ |
| 901 | (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \ |
| 902 | s->sectors_written_start) >> 1) |
| 903 | |
Jaegeuk Kim | 6beceb5 | 2016-01-08 15:51:50 -0800 | [diff] [blame] | 904 | static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) |
| 905 | { |
| 906 | sbi->last_time[type] = jiffies; |
| 907 | } |
| 908 | |
| 909 | static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) |
| 910 | { |
| 911 | struct timespec ts = {sbi->interval_time[type], 0}; |
| 912 | unsigned long interval = timespec_to_jiffies(&ts); |
| 913 | |
| 914 | return time_after(jiffies, sbi->last_time[type] + interval); |
| 915 | } |
| 916 | |
Jaegeuk Kim | d0239e1 | 2016-01-08 16:57:48 -0800 | [diff] [blame] | 917 | static inline bool is_idle(struct f2fs_sb_info *sbi) |
| 918 | { |
| 919 | struct block_device *bdev = sbi->sb->s_bdev; |
| 920 | struct request_queue *q = bdev_get_queue(bdev); |
| 921 | struct request_list *rl = &q->root_rl; |
| 922 | |
| 923 | if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) |
| 924 | return 0; |
| 925 | |
| 926 | return f2fs_time_over(sbi, REQ_TIME); |
| 927 | } |
| 928 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 929 | /* |
| 930 | * Inline functions |
| 931 | */ |
Keith Mok | 43b6573 | 2016-03-02 12:04:24 -0800 | [diff] [blame] | 932 | static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, |
| 933 | unsigned int length) |
| 934 | { |
| 935 | SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver); |
| 936 | u32 *ctx = (u32 *)shash_desc_ctx(shash); |
| 937 | int err; |
| 938 | |
| 939 | shash->tfm = sbi->s_chksum_driver; |
| 940 | shash->flags = 0; |
| 941 | *ctx = F2FS_SUPER_MAGIC; |
| 942 | |
| 943 | err = crypto_shash_update(shash, address, length); |
| 944 | BUG_ON(err); |
| 945 | |
| 946 | return *ctx; |
| 947 | } |
| 948 | |
| 949 | static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, |
| 950 | void *buf, size_t buf_size) |
| 951 | { |
| 952 | return f2fs_crc32(sbi, buf, buf_size) == blk_crc; |
| 953 | } |
| 954 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 955 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) |
| 956 | { |
| 957 | return container_of(inode, struct f2fs_inode_info, vfs_inode); |
| 958 | } |
| 959 | |
| 960 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) |
| 961 | { |
| 962 | return sb->s_fs_info; |
| 963 | } |
| 964 | |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 965 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
| 966 | { |
| 967 | return F2FS_SB(inode->i_sb); |
| 968 | } |
| 969 | |
| 970 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) |
| 971 | { |
| 972 | return F2FS_I_SB(mapping->host); |
| 973 | } |
| 974 | |
| 975 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) |
| 976 | { |
| 977 | return F2FS_M_SB(page->mapping); |
| 978 | } |
| 979 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 980 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
| 981 | { |
| 982 | return (struct f2fs_super_block *)(sbi->raw_super); |
| 983 | } |
| 984 | |
| 985 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) |
| 986 | { |
| 987 | return (struct f2fs_checkpoint *)(sbi->ckpt); |
| 988 | } |
| 989 | |
Gu Zheng | 4559071 | 2013-07-15 17:57:38 +0800 | [diff] [blame] | 990 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
| 991 | { |
| 992 | return (struct f2fs_node *)page_address(page); |
| 993 | } |
| 994 | |
Jaegeuk Kim | 58bfaf4 | 2013-12-26 16:30:41 +0900 | [diff] [blame] | 995 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
| 996 | { |
| 997 | return &((struct f2fs_node *)page_address(page))->i; |
| 998 | } |
| 999 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1000 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
| 1001 | { |
| 1002 | return (struct f2fs_nm_info *)(sbi->nm_info); |
| 1003 | } |
| 1004 | |
| 1005 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) |
| 1006 | { |
| 1007 | return (struct f2fs_sm_info *)(sbi->sm_info); |
| 1008 | } |
| 1009 | |
| 1010 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) |
| 1011 | { |
| 1012 | return (struct sit_info *)(SM_I(sbi)->sit_info); |
| 1013 | } |
| 1014 | |
| 1015 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) |
| 1016 | { |
| 1017 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); |
| 1018 | } |
| 1019 | |
| 1020 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) |
| 1021 | { |
| 1022 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); |
| 1023 | } |
| 1024 | |
Gu Zheng | 9df27d9 | 2014-01-20 18:37:04 +0800 | [diff] [blame] | 1025 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
| 1026 | { |
| 1027 | return sbi->meta_inode->i_mapping; |
| 1028 | } |
| 1029 | |
Jaegeuk Kim | 4ef51a8 | 2014-01-21 18:51:16 +0900 | [diff] [blame] | 1030 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
| 1031 | { |
| 1032 | return sbi->node_inode->i_mapping; |
| 1033 | } |
| 1034 | |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1035 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1036 | { |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1037 | return sbi->s_flag & (0x01 << type); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1038 | } |
| 1039 | |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1040 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1041 | { |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1042 | sbi->s_flag |= (0x01 << type); |
| 1043 | } |
| 1044 | |
| 1045 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
| 1046 | { |
| 1047 | sbi->s_flag &= ~(0x01 << type); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1048 | } |
| 1049 | |
Jaegeuk Kim | d71b556 | 2013-08-09 15:03:21 +0900 | [diff] [blame] | 1050 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
| 1051 | { |
| 1052 | return le64_to_cpu(cp->checkpoint_ver); |
| 1053 | } |
| 1054 | |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 1055 | static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
| 1056 | { |
| 1057 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); |
| 1058 | return ckpt_flags & f; |
| 1059 | } |
| 1060 | |
| 1061 | static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
| 1062 | { |
| 1063 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); |
| 1064 | ckpt_flags |= f; |
| 1065 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); |
| 1066 | } |
| 1067 | |
| 1068 | static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
| 1069 | { |
| 1070 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); |
| 1071 | ckpt_flags &= (~f); |
| 1072 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); |
| 1073 | } |
| 1074 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1075 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1076 | { |
Jaegeuk Kim | ec79541 | 2016-06-30 19:59:11 -0700 | [diff] [blame] | 1077 | percpu_down_read(&sbi->cp_rwsem); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1078 | } |
| 1079 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1080 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1081 | { |
Jaegeuk Kim | ec79541 | 2016-06-30 19:59:11 -0700 | [diff] [blame] | 1082 | percpu_up_read(&sbi->cp_rwsem); |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1083 | } |
| 1084 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1085 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1086 | { |
Jaegeuk Kim | ec79541 | 2016-06-30 19:59:11 -0700 | [diff] [blame] | 1087 | percpu_down_write(&sbi->cp_rwsem); |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1088 | } |
| 1089 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1090 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1091 | { |
Jaegeuk Kim | ec79541 | 2016-06-30 19:59:11 -0700 | [diff] [blame] | 1092 | percpu_up_write(&sbi->cp_rwsem); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1093 | } |
| 1094 | |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 1095 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
| 1096 | { |
| 1097 | int reason = CP_SYNC; |
| 1098 | |
| 1099 | if (test_opt(sbi, FASTBOOT)) |
| 1100 | reason = CP_FASTBOOT; |
| 1101 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) |
| 1102 | reason = CP_UMOUNT; |
| 1103 | return reason; |
| 1104 | } |
| 1105 | |
| 1106 | static inline bool __remain_node_summaries(int reason) |
| 1107 | { |
| 1108 | return (reason == CP_UMOUNT || reason == CP_FASTBOOT); |
| 1109 | } |
| 1110 | |
| 1111 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) |
| 1112 | { |
| 1113 | return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) || |
| 1114 | is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG)); |
| 1115 | } |
| 1116 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1117 | /* |
| 1118 | * Check whether the given nid is within node id range. |
| 1119 | */ |
Namjae Jeon | 064e082 | 2013-03-17 17:27:20 +0900 | [diff] [blame] | 1120 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1121 | { |
Chao Yu | d6b7d4b | 2014-06-12 13:23:41 +0800 | [diff] [blame] | 1122 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
| 1123 | return -EINVAL; |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 1124 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
Namjae Jeon | 064e082 | 2013-03-17 17:27:20 +0900 | [diff] [blame] | 1125 | return -EINVAL; |
| 1126 | return 0; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1127 | } |
| 1128 | |
| 1129 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 |
| 1130 | |
| 1131 | /* |
| 1132 | * Check whether the inode has blocks or not |
| 1133 | */ |
| 1134 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) |
| 1135 | { |
| 1136 | if (F2FS_I(inode)->i_xattr_nid) |
Chris Fries | 6c311ec | 2014-01-17 14:44:39 -0600 | [diff] [blame] | 1137 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1138 | else |
Chris Fries | 6c311ec | 2014-01-17 14:44:39 -0600 | [diff] [blame] | 1139 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1140 | } |
| 1141 | |
Chao Yu | 4bc8e9b | 2014-03-17 16:35:06 +0800 | [diff] [blame] | 1142 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
| 1143 | { |
| 1144 | return ofs == XATTR_NODE_OFFSET; |
| 1145 | } |
| 1146 | |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1147 | static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1148 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
Chao Yu | 46008c6 | 2016-05-09 19:56:30 +0800 | [diff] [blame] | 1149 | struct inode *inode, blkcnt_t *count) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1150 | { |
Jaegeuk Kim | dd11a5d | 2016-07-19 19:20:11 -0700 | [diff] [blame] | 1151 | blkcnt_t diff; |
| 1152 | |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 1153 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
Jaegeuk Kim | 2555a2d | 2016-06-30 19:02:06 -0700 | [diff] [blame] | 1154 | if (time_to_inject(FAULT_BLOCK)) |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 1155 | return false; |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 1156 | #endif |
Jaegeuk Kim | dd11a5d | 2016-07-19 19:20:11 -0700 | [diff] [blame] | 1157 | /* |
| 1158 | * let's increase this in prior to actual block count change in order |
| 1159 | * for f2fs_sync_file to avoid data races when deciding checkpoint. |
| 1160 | */ |
| 1161 | percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 1162 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1163 | spin_lock(&sbi->stat_lock); |
Jaegeuk Kim | 2555a2d | 2016-06-30 19:02:06 -0700 | [diff] [blame] | 1164 | sbi->total_valid_block_count += (block_t)(*count); |
| 1165 | if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) { |
Jaegeuk Kim | dd11a5d | 2016-07-19 19:20:11 -0700 | [diff] [blame] | 1166 | diff = sbi->total_valid_block_count - sbi->user_block_count; |
| 1167 | *count -= diff; |
Jaegeuk Kim | 2555a2d | 2016-06-30 19:02:06 -0700 | [diff] [blame] | 1168 | sbi->total_valid_block_count = sbi->user_block_count; |
Chao Yu | 46008c6 | 2016-05-09 19:56:30 +0800 | [diff] [blame] | 1169 | if (!*count) { |
| 1170 | spin_unlock(&sbi->stat_lock); |
Jaegeuk Kim | dd11a5d | 2016-07-19 19:20:11 -0700 | [diff] [blame] | 1171 | percpu_counter_sub(&sbi->alloc_valid_block_count, diff); |
Chao Yu | 46008c6 | 2016-05-09 19:56:30 +0800 | [diff] [blame] | 1172 | return false; |
| 1173 | } |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1174 | } |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1175 | spin_unlock(&sbi->stat_lock); |
Jaegeuk Kim | 41382ec | 2016-05-16 11:06:50 -0700 | [diff] [blame] | 1176 | |
Jaegeuk Kim | 2555a2d | 2016-06-30 19:02:06 -0700 | [diff] [blame] | 1177 | f2fs_i_blocks_write(inode, *count, true); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1178 | return true; |
| 1179 | } |
| 1180 | |
Gu Zheng | da19b0d | 2013-11-19 18:03:27 +0800 | [diff] [blame] | 1181 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1182 | struct inode *inode, |
| 1183 | blkcnt_t count) |
| 1184 | { |
| 1185 | spin_lock(&sbi->stat_lock); |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 1186 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
| 1187 | f2fs_bug_on(sbi, inode->i_blocks < count); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1188 | sbi->total_valid_block_count -= (block_t)count; |
| 1189 | spin_unlock(&sbi->stat_lock); |
Jaegeuk Kim | 2555a2d | 2016-06-30 19:02:06 -0700 | [diff] [blame] | 1190 | f2fs_i_blocks_write(inode, count, false); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1191 | } |
| 1192 | |
| 1193 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) |
| 1194 | { |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 1195 | percpu_counter_inc(&sbi->nr_pages[count_type]); |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1196 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1197 | } |
| 1198 | |
Jaegeuk Kim | a7ffdbe | 2014-09-12 15:53:45 -0700 | [diff] [blame] | 1199 | static inline void inode_inc_dirty_pages(struct inode *inode) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1200 | { |
Jaegeuk Kim | 1beba1b | 2016-05-13 12:47:11 -0700 | [diff] [blame] | 1201 | percpu_counter_inc(&F2FS_I(inode)->dirty_pages); |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 1202 | inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
| 1203 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1204 | } |
| 1205 | |
| 1206 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) |
| 1207 | { |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 1208 | percpu_counter_dec(&sbi->nr_pages[count_type]); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1209 | } |
| 1210 | |
Jaegeuk Kim | a7ffdbe | 2014-09-12 15:53:45 -0700 | [diff] [blame] | 1211 | static inline void inode_dec_dirty_pages(struct inode *inode) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1212 | { |
Chao Yu | 5ac9f36 | 2015-06-29 18:14:10 +0800 | [diff] [blame] | 1213 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
| 1214 | !S_ISLNK(inode->i_mode)) |
Jaegeuk Kim | 1fe54f9 | 2014-02-07 10:00:06 +0900 | [diff] [blame] | 1215 | return; |
| 1216 | |
Jaegeuk Kim | 1beba1b | 2016-05-13 12:47:11 -0700 | [diff] [blame] | 1217 | percpu_counter_dec(&F2FS_I(inode)->dirty_pages); |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 1218 | dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
| 1219 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1220 | } |
| 1221 | |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 1222 | static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1223 | { |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 1224 | return percpu_counter_sum_positive(&sbi->nr_pages[count_type]); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1225 | } |
| 1226 | |
Jaegeuk Kim | 1beba1b | 2016-05-13 12:47:11 -0700 | [diff] [blame] | 1227 | static inline s64 get_dirty_pages(struct inode *inode) |
Jaegeuk Kim | f8b2c1f | 2014-03-18 12:33:06 +0900 | [diff] [blame] | 1228 | { |
Jaegeuk Kim | 1beba1b | 2016-05-13 12:47:11 -0700 | [diff] [blame] | 1229 | return percpu_counter_sum_positive(&F2FS_I(inode)->dirty_pages); |
Jaegeuk Kim | f8b2c1f | 2014-03-18 12:33:06 +0900 | [diff] [blame] | 1230 | } |
| 1231 | |
Namjae Jeon | 5ac206c | 2013-02-02 23:52:59 +0900 | [diff] [blame] | 1232 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
| 1233 | { |
Chao Yu | 3519e3f | 2015-12-01 11:56:52 +0800 | [diff] [blame] | 1234 | unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 1235 | unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> |
| 1236 | sbi->log_blocks_per_seg; |
| 1237 | |
| 1238 | return segs / sbi->segs_per_sec; |
Namjae Jeon | 5ac206c | 2013-02-02 23:52:59 +0900 | [diff] [blame] | 1239 | } |
| 1240 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1241 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
| 1242 | { |
Jaegeuk Kim | 8b8343f | 2014-02-24 13:00:13 +0900 | [diff] [blame] | 1243 | return sbi->total_valid_block_count; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1244 | } |
| 1245 | |
| 1246 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) |
| 1247 | { |
| 1248 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
| 1249 | |
| 1250 | /* return NAT or SIT bitmap */ |
| 1251 | if (flag == NAT_BITMAP) |
| 1252 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); |
| 1253 | else if (flag == SIT_BITMAP) |
| 1254 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); |
| 1255 | |
| 1256 | return 0; |
| 1257 | } |
| 1258 | |
Wanpeng Li | 5514148 | 2015-02-26 07:57:20 +0800 | [diff] [blame] | 1259 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
| 1260 | { |
| 1261 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); |
| 1262 | } |
| 1263 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1264 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
| 1265 | { |
| 1266 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1267 | int offset; |
| 1268 | |
Wanpeng Li | 5514148 | 2015-02-26 07:57:20 +0800 | [diff] [blame] | 1269 | if (__cp_payload(sbi) > 0) { |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1270 | if (flag == NAT_BITMAP) |
| 1271 | return &ckpt->sit_nat_version_bitmap; |
| 1272 | else |
Jaegeuk Kim | 65b85cc | 2014-07-30 17:25:54 -0700 | [diff] [blame] | 1273 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1274 | } else { |
| 1275 | offset = (flag == NAT_BITMAP) ? |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 1276 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1277 | return &ckpt->sit_nat_version_bitmap + offset; |
| 1278 | } |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1279 | } |
| 1280 | |
| 1281 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) |
| 1282 | { |
| 1283 | block_t start_addr; |
| 1284 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
Jaegeuk Kim | d71b556 | 2013-08-09 15:03:21 +0900 | [diff] [blame] | 1285 | unsigned long long ckpt_version = cur_cp_version(ckpt); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1286 | |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 1287 | start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1288 | |
| 1289 | /* |
| 1290 | * odd numbered checkpoint should at cp segment 0 |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 1291 | * and even segment must be at cp segment 1 |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1292 | */ |
| 1293 | if (!(ckpt_version & 1)) |
| 1294 | start_addr += sbi->blocks_per_seg; |
| 1295 | |
| 1296 | return start_addr; |
| 1297 | } |
| 1298 | |
| 1299 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) |
| 1300 | { |
| 1301 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); |
| 1302 | } |
| 1303 | |
| 1304 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1305 | struct inode *inode) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1306 | { |
| 1307 | block_t valid_block_count; |
| 1308 | unsigned int valid_node_count; |
| 1309 | |
| 1310 | spin_lock(&sbi->stat_lock); |
| 1311 | |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1312 | valid_block_count = sbi->total_valid_block_count + 1; |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 1313 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1314 | spin_unlock(&sbi->stat_lock); |
| 1315 | return false; |
| 1316 | } |
| 1317 | |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1318 | valid_node_count = sbi->total_valid_node_count + 1; |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 1319 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1320 | spin_unlock(&sbi->stat_lock); |
| 1321 | return false; |
| 1322 | } |
| 1323 | |
| 1324 | if (inode) |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1325 | f2fs_i_blocks_write(inode, 1, true); |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1326 | |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1327 | sbi->total_valid_node_count++; |
| 1328 | sbi->total_valid_block_count++; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1329 | spin_unlock(&sbi->stat_lock); |
| 1330 | |
Jaegeuk Kim | 41382ec | 2016-05-16 11:06:50 -0700 | [diff] [blame] | 1331 | percpu_counter_inc(&sbi->alloc_valid_block_count); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1332 | return true; |
| 1333 | } |
| 1334 | |
| 1335 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1336 | struct inode *inode) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1337 | { |
| 1338 | spin_lock(&sbi->stat_lock); |
| 1339 | |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 1340 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
| 1341 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); |
| 1342 | f2fs_bug_on(sbi, !inode->i_blocks); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1343 | |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1344 | f2fs_i_blocks_write(inode, 1, false); |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1345 | sbi->total_valid_node_count--; |
| 1346 | sbi->total_valid_block_count--; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1347 | |
| 1348 | spin_unlock(&sbi->stat_lock); |
| 1349 | } |
| 1350 | |
| 1351 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) |
| 1352 | { |
Jaegeuk Kim | 8b8343f | 2014-02-24 13:00:13 +0900 | [diff] [blame] | 1353 | return sbi->total_valid_node_count; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1354 | } |
| 1355 | |
| 1356 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) |
| 1357 | { |
Jaegeuk Kim | 513c5f3 | 2016-05-16 11:42:32 -0700 | [diff] [blame] | 1358 | percpu_counter_inc(&sbi->total_valid_inode_count); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1359 | } |
| 1360 | |
Jaegeuk Kim | 0e80220 | 2013-11-26 16:36:20 +0900 | [diff] [blame] | 1361 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1362 | { |
Jaegeuk Kim | 513c5f3 | 2016-05-16 11:42:32 -0700 | [diff] [blame] | 1363 | percpu_counter_dec(&sbi->total_valid_inode_count); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1364 | } |
| 1365 | |
Jaegeuk Kim | 513c5f3 | 2016-05-16 11:42:32 -0700 | [diff] [blame] | 1366 | static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1367 | { |
Jaegeuk Kim | 513c5f3 | 2016-05-16 11:42:32 -0700 | [diff] [blame] | 1368 | return percpu_counter_sum_positive(&sbi->total_valid_inode_count); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1369 | } |
| 1370 | |
Jaegeuk Kim | a56c7c6 | 2015-10-09 15:11:38 -0700 | [diff] [blame] | 1371 | static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, |
| 1372 | pgoff_t index, bool for_write) |
| 1373 | { |
Jaegeuk Kim | c41f3cc3 | 2016-04-29 16:17:09 -0700 | [diff] [blame] | 1374 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
| 1375 | struct page *page = find_lock_page(mapping, index); |
| 1376 | if (page) |
| 1377 | return page; |
| 1378 | |
| 1379 | if (time_to_inject(FAULT_PAGE_ALLOC)) |
| 1380 | return NULL; |
| 1381 | #endif |
Jaegeuk Kim | a56c7c6 | 2015-10-09 15:11:38 -0700 | [diff] [blame] | 1382 | if (!for_write) |
| 1383 | return grab_cache_page(mapping, index); |
| 1384 | return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); |
| 1385 | } |
| 1386 | |
Jaegeuk Kim | 6e2c64a | 2015-10-07 12:28:41 -0700 | [diff] [blame] | 1387 | static inline void f2fs_copy_page(struct page *src, struct page *dst) |
| 1388 | { |
| 1389 | char *src_kaddr = kmap(src); |
| 1390 | char *dst_kaddr = kmap(dst); |
| 1391 | |
| 1392 | memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); |
| 1393 | kunmap(dst); |
| 1394 | kunmap(src); |
| 1395 | } |
| 1396 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1397 | static inline void f2fs_put_page(struct page *page, int unlock) |
| 1398 | { |
Jaegeuk Kim | 031fa8c | 2013-11-28 12:55:13 +0900 | [diff] [blame] | 1399 | if (!page) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1400 | return; |
| 1401 | |
| 1402 | if (unlock) { |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 1403 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1404 | unlock_page(page); |
| 1405 | } |
Kirill A. Shutemov | 09cbfea | 2016-04-01 15:29:47 +0300 | [diff] [blame] | 1406 | put_page(page); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1407 | } |
| 1408 | |
| 1409 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) |
| 1410 | { |
| 1411 | if (dn->node_page) |
| 1412 | f2fs_put_page(dn->node_page, 1); |
| 1413 | if (dn->inode_page && dn->node_page != dn->inode_page) |
| 1414 | f2fs_put_page(dn->inode_page, 0); |
| 1415 | dn->node_page = NULL; |
| 1416 | dn->inode_page = NULL; |
| 1417 | } |
| 1418 | |
| 1419 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, |
Gu Zheng | e8512d2 | 2014-03-07 18:43:28 +0800 | [diff] [blame] | 1420 | size_t size) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1421 | { |
Gu Zheng | e8512d2 | 2014-03-07 18:43:28 +0800 | [diff] [blame] | 1422 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1423 | } |
| 1424 | |
Gu Zheng | 7bd5938 | 2013-10-22 14:52:26 +0800 | [diff] [blame] | 1425 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
| 1426 | gfp_t flags) |
| 1427 | { |
| 1428 | void *entry; |
Gu Zheng | 7bd5938 | 2013-10-22 14:52:26 +0800 | [diff] [blame] | 1429 | |
Jaegeuk Kim | 80c5450 | 2015-08-20 08:51:56 -0700 | [diff] [blame] | 1430 | entry = kmem_cache_alloc(cachep, flags); |
| 1431 | if (!entry) |
| 1432 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); |
Gu Zheng | 7bd5938 | 2013-10-22 14:52:26 +0800 | [diff] [blame] | 1433 | return entry; |
| 1434 | } |
| 1435 | |
Jaegeuk Kim | 740432f | 2015-08-14 11:43:56 -0700 | [diff] [blame] | 1436 | static inline struct bio *f2fs_bio_alloc(int npages) |
| 1437 | { |
| 1438 | struct bio *bio; |
| 1439 | |
| 1440 | /* No failure on bio allocation */ |
Jaegeuk Kim | 740432f | 2015-08-14 11:43:56 -0700 | [diff] [blame] | 1441 | bio = bio_alloc(GFP_NOIO, npages); |
Jaegeuk Kim | 80c5450 | 2015-08-20 08:51:56 -0700 | [diff] [blame] | 1442 | if (!bio) |
| 1443 | bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); |
Jaegeuk Kim | 740432f | 2015-08-14 11:43:56 -0700 | [diff] [blame] | 1444 | return bio; |
| 1445 | } |
| 1446 | |
Jaegeuk Kim | 9be32d7 | 2014-12-05 10:39:49 -0800 | [diff] [blame] | 1447 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
| 1448 | unsigned long index, void *item) |
| 1449 | { |
| 1450 | while (radix_tree_insert(root, index, item)) |
| 1451 | cond_resched(); |
| 1452 | } |
| 1453 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1454 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
| 1455 | |
| 1456 | static inline bool IS_INODE(struct page *page) |
| 1457 | { |
Gu Zheng | 4559071 | 2013-07-15 17:57:38 +0800 | [diff] [blame] | 1458 | struct f2fs_node *p = F2FS_NODE(page); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1459 | return RAW_IS_INODE(p); |
| 1460 | } |
| 1461 | |
| 1462 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) |
| 1463 | { |
| 1464 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; |
| 1465 | } |
| 1466 | |
| 1467 | static inline block_t datablock_addr(struct page *node_page, |
| 1468 | unsigned int offset) |
| 1469 | { |
| 1470 | struct f2fs_node *raw_node; |
| 1471 | __le32 *addr_array; |
Gu Zheng | 4559071 | 2013-07-15 17:57:38 +0800 | [diff] [blame] | 1472 | raw_node = F2FS_NODE(node_page); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1473 | addr_array = blkaddr_in_node(raw_node); |
| 1474 | return le32_to_cpu(addr_array[offset]); |
| 1475 | } |
| 1476 | |
| 1477 | static inline int f2fs_test_bit(unsigned int nr, char *addr) |
| 1478 | { |
| 1479 | int mask; |
| 1480 | |
| 1481 | addr += (nr >> 3); |
| 1482 | mask = 1 << (7 - (nr & 0x07)); |
| 1483 | return mask & *addr; |
| 1484 | } |
| 1485 | |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 1486 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
| 1487 | { |
| 1488 | int mask; |
| 1489 | |
| 1490 | addr += (nr >> 3); |
| 1491 | mask = 1 << (7 - (nr & 0x07)); |
| 1492 | *addr |= mask; |
| 1493 | } |
| 1494 | |
| 1495 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) |
| 1496 | { |
| 1497 | int mask; |
| 1498 | |
| 1499 | addr += (nr >> 3); |
| 1500 | mask = 1 << (7 - (nr & 0x07)); |
| 1501 | *addr &= ~mask; |
| 1502 | } |
| 1503 | |
Gu Zheng | 52aca07 | 2014-10-20 17:45:51 +0800 | [diff] [blame] | 1504 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1505 | { |
| 1506 | int mask; |
| 1507 | int ret; |
| 1508 | |
| 1509 | addr += (nr >> 3); |
| 1510 | mask = 1 << (7 - (nr & 0x07)); |
| 1511 | ret = mask & *addr; |
| 1512 | *addr |= mask; |
| 1513 | return ret; |
| 1514 | } |
| 1515 | |
Gu Zheng | 52aca07 | 2014-10-20 17:45:51 +0800 | [diff] [blame] | 1516 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1517 | { |
| 1518 | int mask; |
| 1519 | int ret; |
| 1520 | |
| 1521 | addr += (nr >> 3); |
| 1522 | mask = 1 << (7 - (nr & 0x07)); |
| 1523 | ret = mask & *addr; |
| 1524 | *addr &= ~mask; |
| 1525 | return ret; |
| 1526 | } |
| 1527 | |
Gu Zheng | c6ac4c0 | 2014-10-20 17:45:50 +0800 | [diff] [blame] | 1528 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
| 1529 | { |
| 1530 | int mask; |
| 1531 | |
| 1532 | addr += (nr >> 3); |
| 1533 | mask = 1 << (7 - (nr & 0x07)); |
| 1534 | *addr ^= mask; |
| 1535 | } |
| 1536 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1537 | /* used for f2fs_inode_info->flags */ |
| 1538 | enum { |
| 1539 | FI_NEW_INODE, /* indicate newly allocated inode */ |
Jaegeuk Kim | b378387 | 2013-06-10 09:17:01 +0900 | [diff] [blame] | 1540 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1541 | FI_AUTO_RECOVER, /* indicate inode is recoverable */ |
Jaegeuk Kim | ed57c27 | 2014-04-15 11:19:28 +0900 | [diff] [blame] | 1542 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1543 | FI_INC_LINK, /* need to increment i_nlink */ |
| 1544 | FI_ACL_MODE, /* indicate acl mode */ |
| 1545 | FI_NO_ALLOC, /* should not allocate any blocks */ |
Jaegeuk Kim | c9b63bd | 2015-06-23 10:36:08 -0700 | [diff] [blame] | 1546 | FI_FREE_NID, /* free allocated nide */ |
Jaegeuk Kim | c11abd1 | 2013-11-19 10:41:54 +0900 | [diff] [blame] | 1547 | FI_NO_EXTENT, /* not to use the extent cache */ |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1548 | FI_INLINE_XATTR, /* used for inline xattr */ |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 1549 | FI_INLINE_DATA, /* used for inline data*/ |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 1550 | FI_INLINE_DENTRY, /* used for inline dentry */ |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 1551 | FI_APPEND_WRITE, /* inode has appended data */ |
| 1552 | FI_UPDATE_WRITE, /* inode has in-place-update data */ |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 1553 | FI_NEED_IPU, /* used for ipu per file */ |
| 1554 | FI_ATOMIC_FILE, /* indicate atomic file */ |
Jaegeuk Kim | 02a1335 | 2014-10-06 16:11:16 -0700 | [diff] [blame] | 1555 | FI_VOLATILE_FILE, /* indicate volatile file */ |
Jaegeuk Kim | 3c6c2be | 2015-03-17 17:16:35 -0700 | [diff] [blame] | 1556 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
Jaegeuk Kim | 1e84371 | 2014-12-09 06:08:59 -0800 | [diff] [blame] | 1557 | FI_DROP_CACHE, /* drop dirty page cache */ |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1558 | FI_DATA_EXIST, /* indicate data exists */ |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1559 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
Chao Yu | d323d00 | 2015-10-27 09:53:45 +0800 | [diff] [blame] | 1560 | FI_DO_DEFRAG, /* indicate defragment is running */ |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 1561 | FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1562 | }; |
| 1563 | |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1564 | static inline void __mark_inode_dirty_flag(struct inode *inode, |
| 1565 | int flag, bool set) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1566 | { |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1567 | switch (flag) { |
| 1568 | case FI_INLINE_XATTR: |
| 1569 | case FI_INLINE_DATA: |
| 1570 | case FI_INLINE_DENTRY: |
| 1571 | if (set) |
| 1572 | return; |
| 1573 | case FI_DATA_EXIST: |
| 1574 | case FI_INLINE_DOTS: |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1575 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1576 | } |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1577 | } |
| 1578 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1579 | static inline void set_inode_flag(struct inode *inode, int flag) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1580 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1581 | if (!test_bit(flag, &F2FS_I(inode)->flags)) |
| 1582 | set_bit(flag, &F2FS_I(inode)->flags); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1583 | __mark_inode_dirty_flag(inode, flag, true); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1584 | } |
| 1585 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1586 | static inline int is_inode_flag_set(struct inode *inode, int flag) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1587 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1588 | return test_bit(flag, &F2FS_I(inode)->flags); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1589 | } |
| 1590 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1591 | static inline void clear_inode_flag(struct inode *inode, int flag) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1592 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1593 | if (test_bit(flag, &F2FS_I(inode)->flags)) |
| 1594 | clear_bit(flag, &F2FS_I(inode)->flags); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1595 | __mark_inode_dirty_flag(inode, flag, false); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1596 | } |
| 1597 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1598 | static inline void set_acl_inode(struct inode *inode, umode_t mode) |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1599 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1600 | F2FS_I(inode)->i_acl_mode = mode; |
| 1601 | set_inode_flag(inode, FI_ACL_MODE); |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1602 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1603 | } |
| 1604 | |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 1605 | static inline void f2fs_i_links_write(struct inode *inode, bool inc) |
| 1606 | { |
| 1607 | if (inc) |
| 1608 | inc_nlink(inode); |
| 1609 | else |
| 1610 | drop_nlink(inode); |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1611 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 1612 | } |
| 1613 | |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1614 | static inline void f2fs_i_blocks_write(struct inode *inode, |
| 1615 | blkcnt_t diff, bool add) |
| 1616 | { |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1617 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
| 1618 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); |
| 1619 | |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1620 | inode->i_blocks = add ? inode->i_blocks + diff : |
| 1621 | inode->i_blocks - diff; |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1622 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1623 | if (clean || recover) |
| 1624 | set_inode_flag(inode, FI_AUTO_RECOVER); |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1625 | } |
| 1626 | |
Jaegeuk Kim | fc9581c | 2016-05-20 09:22:03 -0700 | [diff] [blame] | 1627 | static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) |
| 1628 | { |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1629 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
| 1630 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); |
| 1631 | |
Jaegeuk Kim | fc9581c | 2016-05-20 09:22:03 -0700 | [diff] [blame] | 1632 | if (i_size_read(inode) == i_size) |
| 1633 | return; |
| 1634 | |
| 1635 | i_size_write(inode, i_size); |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1636 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1637 | if (clean || recover) |
| 1638 | set_inode_flag(inode, FI_AUTO_RECOVER); |
| 1639 | } |
| 1640 | |
| 1641 | static inline bool f2fs_skip_inode_update(struct inode *inode) |
| 1642 | { |
| 1643 | if (!is_inode_flag_set(inode, FI_AUTO_RECOVER)) |
| 1644 | return false; |
| 1645 | return F2FS_I(inode)->last_disk_size == i_size_read(inode); |
Jaegeuk Kim | fc9581c | 2016-05-20 09:22:03 -0700 | [diff] [blame] | 1646 | } |
| 1647 | |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1648 | static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) |
| 1649 | { |
| 1650 | F2FS_I(inode)->i_current_depth = depth; |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1651 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1652 | } |
| 1653 | |
| 1654 | static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) |
| 1655 | { |
| 1656 | F2FS_I(inode)->i_xattr_nid = xnid; |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1657 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1658 | } |
| 1659 | |
| 1660 | static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) |
| 1661 | { |
| 1662 | F2FS_I(inode)->i_pino = pino; |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1663 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1664 | } |
| 1665 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1666 | static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1667 | { |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1668 | struct f2fs_inode_info *fi = F2FS_I(inode); |
| 1669 | |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1670 | if (ri->i_inline & F2FS_INLINE_XATTR) |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1671 | set_bit(FI_INLINE_XATTR, &fi->flags); |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 1672 | if (ri->i_inline & F2FS_INLINE_DATA) |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1673 | set_bit(FI_INLINE_DATA, &fi->flags); |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 1674 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1675 | set_bit(FI_INLINE_DENTRY, &fi->flags); |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1676 | if (ri->i_inline & F2FS_DATA_EXIST) |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1677 | set_bit(FI_DATA_EXIST, &fi->flags); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1678 | if (ri->i_inline & F2FS_INLINE_DOTS) |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1679 | set_bit(FI_INLINE_DOTS, &fi->flags); |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1680 | } |
| 1681 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1682 | static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1683 | { |
| 1684 | ri->i_inline = 0; |
| 1685 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1686 | if (is_inode_flag_set(inode, FI_INLINE_XATTR)) |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1687 | ri->i_inline |= F2FS_INLINE_XATTR; |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1688 | if (is_inode_flag_set(inode, FI_INLINE_DATA)) |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 1689 | ri->i_inline |= F2FS_INLINE_DATA; |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1690 | if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 1691 | ri->i_inline |= F2FS_INLINE_DENTRY; |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1692 | if (is_inode_flag_set(inode, FI_DATA_EXIST)) |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1693 | ri->i_inline |= F2FS_DATA_EXIST; |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1694 | if (is_inode_flag_set(inode, FI_INLINE_DOTS)) |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1695 | ri->i_inline |= F2FS_INLINE_DOTS; |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1696 | } |
| 1697 | |
Chao Yu | 987c7c3 | 2014-03-12 15:59:03 +0800 | [diff] [blame] | 1698 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
| 1699 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1700 | return is_inode_flag_set(inode, FI_INLINE_XATTR); |
Chao Yu | 987c7c3 | 2014-03-12 15:59:03 +0800 | [diff] [blame] | 1701 | } |
| 1702 | |
Chao Yu | 81ca735 | 2016-01-26 15:39:35 +0800 | [diff] [blame] | 1703 | static inline unsigned int addrs_per_inode(struct inode *inode) |
Jaegeuk Kim | de93653 | 2013-08-12 21:08:03 +0900 | [diff] [blame] | 1704 | { |
Chao Yu | 81ca735 | 2016-01-26 15:39:35 +0800 | [diff] [blame] | 1705 | if (f2fs_has_inline_xattr(inode)) |
Jaegeuk Kim | de93653 | 2013-08-12 21:08:03 +0900 | [diff] [blame] | 1706 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
| 1707 | return DEF_ADDRS_PER_INODE; |
| 1708 | } |
| 1709 | |
Jaegeuk Kim | 65985d9 | 2013-08-14 21:57:27 +0900 | [diff] [blame] | 1710 | static inline void *inline_xattr_addr(struct page *page) |
| 1711 | { |
Chao Yu | 695fd1e | 2014-02-27 19:52:21 +0800 | [diff] [blame] | 1712 | struct f2fs_inode *ri = F2FS_INODE(page); |
Jaegeuk Kim | 65985d9 | 2013-08-14 21:57:27 +0900 | [diff] [blame] | 1713 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
| 1714 | F2FS_INLINE_XATTR_ADDRS]); |
| 1715 | } |
| 1716 | |
| 1717 | static inline int inline_xattr_size(struct inode *inode) |
| 1718 | { |
Chao Yu | 987c7c3 | 2014-03-12 15:59:03 +0800 | [diff] [blame] | 1719 | if (f2fs_has_inline_xattr(inode)) |
Jaegeuk Kim | 65985d9 | 2013-08-14 21:57:27 +0900 | [diff] [blame] | 1720 | return F2FS_INLINE_XATTR_ADDRS << 2; |
| 1721 | else |
| 1722 | return 0; |
| 1723 | } |
| 1724 | |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 1725 | static inline int f2fs_has_inline_data(struct inode *inode) |
| 1726 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1727 | return is_inode_flag_set(inode, FI_INLINE_DATA); |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 1728 | } |
| 1729 | |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1730 | static inline void f2fs_clear_inline_inode(struct inode *inode) |
| 1731 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1732 | clear_inode_flag(inode, FI_INLINE_DATA); |
| 1733 | clear_inode_flag(inode, FI_DATA_EXIST); |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1734 | } |
| 1735 | |
| 1736 | static inline int f2fs_exist_data(struct inode *inode) |
| 1737 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1738 | return is_inode_flag_set(inode, FI_DATA_EXIST); |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1739 | } |
| 1740 | |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1741 | static inline int f2fs_has_inline_dots(struct inode *inode) |
| 1742 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1743 | return is_inode_flag_set(inode, FI_INLINE_DOTS); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1744 | } |
| 1745 | |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 1746 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
| 1747 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1748 | return is_inode_flag_set(inode, FI_ATOMIC_FILE); |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 1749 | } |
| 1750 | |
Jaegeuk Kim | 02a1335 | 2014-10-06 16:11:16 -0700 | [diff] [blame] | 1751 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
| 1752 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1753 | return is_inode_flag_set(inode, FI_VOLATILE_FILE); |
Jaegeuk Kim | 02a1335 | 2014-10-06 16:11:16 -0700 | [diff] [blame] | 1754 | } |
| 1755 | |
Jaegeuk Kim | 3c6c2be | 2015-03-17 17:16:35 -0700 | [diff] [blame] | 1756 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
| 1757 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1758 | return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); |
Jaegeuk Kim | 3c6c2be | 2015-03-17 17:16:35 -0700 | [diff] [blame] | 1759 | } |
| 1760 | |
Jaegeuk Kim | 1e84371 | 2014-12-09 06:08:59 -0800 | [diff] [blame] | 1761 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
| 1762 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1763 | return is_inode_flag_set(inode, FI_DROP_CACHE); |
Jaegeuk Kim | 1e84371 | 2014-12-09 06:08:59 -0800 | [diff] [blame] | 1764 | } |
| 1765 | |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 1766 | static inline void *inline_data_addr(struct page *page) |
| 1767 | { |
Chao Yu | 695fd1e | 2014-02-27 19:52:21 +0800 | [diff] [blame] | 1768 | struct f2fs_inode *ri = F2FS_INODE(page); |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 1769 | return (void *)&(ri->i_addr[1]); |
| 1770 | } |
| 1771 | |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 1772 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
| 1773 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1774 | return is_inode_flag_set(inode, FI_INLINE_DENTRY); |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 1775 | } |
| 1776 | |
Jaegeuk Kim | 9486ba4 | 2014-11-21 16:36:28 -0800 | [diff] [blame] | 1777 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
| 1778 | { |
| 1779 | if (!f2fs_has_inline_dentry(dir)) |
| 1780 | kunmap(page); |
| 1781 | } |
| 1782 | |
Jaegeuk Kim | b5492af | 2015-04-20 13:44:41 -0700 | [diff] [blame] | 1783 | static inline int is_file(struct inode *inode, int type) |
| 1784 | { |
| 1785 | return F2FS_I(inode)->i_advise & type; |
| 1786 | } |
| 1787 | |
| 1788 | static inline void set_file(struct inode *inode, int type) |
| 1789 | { |
| 1790 | F2FS_I(inode)->i_advise |= type; |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1791 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | b5492af | 2015-04-20 13:44:41 -0700 | [diff] [blame] | 1792 | } |
| 1793 | |
| 1794 | static inline void clear_file(struct inode *inode, int type) |
| 1795 | { |
| 1796 | F2FS_I(inode)->i_advise &= ~type; |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1797 | f2fs_mark_inode_dirty_sync(inode); |
Jaegeuk Kim | b5492af | 2015-04-20 13:44:41 -0700 | [diff] [blame] | 1798 | } |
| 1799 | |
Jaegeuk Kim | 77888c1 | 2013-05-20 20:28:47 +0900 | [diff] [blame] | 1800 | static inline int f2fs_readonly(struct super_block *sb) |
| 1801 | { |
| 1802 | return sb->s_flags & MS_RDONLY; |
| 1803 | } |
| 1804 | |
Jaegeuk Kim | 1e968fd | 2014-08-11 16:49:25 -0700 | [diff] [blame] | 1805 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
| 1806 | { |
| 1807 | return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); |
| 1808 | } |
| 1809 | |
Jaegeuk Kim | eaa693f | 2015-04-26 00:15:29 -0700 | [diff] [blame] | 1810 | static inline bool is_dot_dotdot(const struct qstr *str) |
| 1811 | { |
| 1812 | if (str->len == 1 && str->name[0] == '.') |
| 1813 | return true; |
| 1814 | |
| 1815 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') |
| 1816 | return true; |
| 1817 | |
| 1818 | return false; |
| 1819 | } |
| 1820 | |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 1821 | static inline bool f2fs_may_extent_tree(struct inode *inode) |
| 1822 | { |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 1823 | if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1824 | is_inode_flag_set(inode, FI_NO_EXTENT)) |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 1825 | return false; |
| 1826 | |
Al Viro | 886f56f | 2015-12-05 03:56:06 -0500 | [diff] [blame] | 1827 | return S_ISREG(inode->i_mode); |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 1828 | } |
| 1829 | |
Jaegeuk Kim | 0414b00 | 2016-04-29 15:16:42 -0700 | [diff] [blame] | 1830 | static inline void *f2fs_kmalloc(size_t size, gfp_t flags) |
| 1831 | { |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 1832 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
| 1833 | if (time_to_inject(FAULT_KMALLOC)) |
| 1834 | return NULL; |
| 1835 | #endif |
Jaegeuk Kim | 0414b00 | 2016-04-29 15:16:42 -0700 | [diff] [blame] | 1836 | return kmalloc(size, flags); |
| 1837 | } |
| 1838 | |
Jaegeuk Kim | 39307a8 | 2015-09-22 13:50:47 -0700 | [diff] [blame] | 1839 | static inline void *f2fs_kvmalloc(size_t size, gfp_t flags) |
| 1840 | { |
| 1841 | void *ret; |
| 1842 | |
| 1843 | ret = kmalloc(size, flags | __GFP_NOWARN); |
| 1844 | if (!ret) |
| 1845 | ret = __vmalloc(size, flags, PAGE_KERNEL); |
| 1846 | return ret; |
| 1847 | } |
| 1848 | |
| 1849 | static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) |
| 1850 | { |
| 1851 | void *ret; |
| 1852 | |
| 1853 | ret = kzalloc(size, flags | __GFP_NOWARN); |
| 1854 | if (!ret) |
| 1855 | ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL); |
| 1856 | return ret; |
| 1857 | } |
| 1858 | |
Christoph Hellwig | a6dda0e | 2013-12-20 05:16:45 -0800 | [diff] [blame] | 1859 | #define get_inode_mode(i) \ |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1860 | ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ |
Christoph Hellwig | a6dda0e | 2013-12-20 05:16:45 -0800 | [diff] [blame] | 1861 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) |
| 1862 | |
Chao Yu | 267378d | 2014-04-23 14:10:24 +0800 | [diff] [blame] | 1863 | /* get offset of first page in next direct node */ |
Chao Yu | 81ca735 | 2016-01-26 15:39:35 +0800 | [diff] [blame] | 1864 | #define PGOFS_OF_NEXT_DNODE(pgofs, inode) \ |
| 1865 | ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \ |
| 1866 | (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \ |
| 1867 | ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode)) |
Chao Yu | 267378d | 2014-04-23 14:10:24 +0800 | [diff] [blame] | 1868 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1869 | /* |
| 1870 | * file.c |
| 1871 | */ |
| 1872 | int f2fs_sync_file(struct file *, loff_t, loff_t, int); |
| 1873 | void truncate_data_blocks(struct dnode_of_data *); |
Jaegeuk Kim | 764aa3e | 2014-08-14 16:32:54 -0700 | [diff] [blame] | 1874 | int truncate_blocks(struct inode *, u64, bool); |
Jaegeuk Kim | 9a449e9 | 2016-06-02 13:49:38 -0700 | [diff] [blame] | 1875 | int f2fs_truncate(struct inode *); |
Jaegeuk Kim | 2d4d9fb5 | 2013-06-07 16:33:07 +0900 | [diff] [blame] | 1876 | int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1877 | int f2fs_setattr(struct dentry *, struct iattr *); |
| 1878 | int truncate_hole(struct inode *, pgoff_t, pgoff_t); |
Jaegeuk Kim | b292dcab | 2013-05-22 08:02:02 +0900 | [diff] [blame] | 1879 | int truncate_data_blocks_range(struct dnode_of_data *, int); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1880 | long f2fs_ioctl(struct file *, unsigned int, unsigned long); |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 1881 | long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1882 | |
| 1883 | /* |
| 1884 | * inode.c |
| 1885 | */ |
| 1886 | void f2fs_set_inode_flags(struct inode *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1887 | struct inode *f2fs_iget(struct super_block *, unsigned long); |
Jaegeuk Kim | 4660f9c | 2013-10-24 14:19:18 +0900 | [diff] [blame] | 1888 | int try_to_free_nats(struct f2fs_sb_info *, int); |
Jaegeuk Kim | 12719ae | 2016-01-07 13:23:12 -0800 | [diff] [blame] | 1889 | int update_inode(struct inode *, struct page *); |
| 1890 | int update_inode_page(struct inode *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1891 | int f2fs_write_inode(struct inode *, struct writeback_control *); |
| 1892 | void f2fs_evict_inode(struct inode *); |
Jaegeuk Kim | 44c1615 | 2014-09-25 11:55:53 -0700 | [diff] [blame] | 1893 | void handle_failed_inode(struct inode *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1894 | |
| 1895 | /* |
| 1896 | * namei.c |
| 1897 | */ |
| 1898 | struct dentry *f2fs_get_parent(struct dentry *child); |
| 1899 | |
| 1900 | /* |
| 1901 | * dir.c |
| 1902 | */ |
Chao Yu | dbeacf0 | 2014-09-24 18:17:04 +0800 | [diff] [blame] | 1903 | extern unsigned char f2fs_filetype_table[F2FS_FT_MAX]; |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1904 | void set_de_type(struct f2fs_dir_entry *, umode_t); |
Chao Yu | 675f10b | 2016-02-22 18:29:18 +0800 | [diff] [blame] | 1905 | unsigned char get_de_type(struct f2fs_dir_entry *); |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 1906 | struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *, |
Jaegeuk Kim | 6e22c69 | 2015-04-27 17:12:39 -0700 | [diff] [blame] | 1907 | f2fs_hash_t, int *, struct f2fs_dentry_ptr *); |
Jaegeuk Kim | 7b3cd7d | 2014-10-18 22:52:52 -0700 | [diff] [blame] | 1908 | bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *, |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 1909 | unsigned int, struct fscrypt_str *); |
Jaegeuk Kim | 062a3e7 | 2014-10-18 23:06:41 -0700 | [diff] [blame] | 1910 | void do_make_empty_dir(struct inode *, struct inode *, |
| 1911 | struct f2fs_dentry_ptr *); |
Chao Yu | dbeacf0 | 2014-09-24 18:17:04 +0800 | [diff] [blame] | 1912 | struct page *init_inode_metadata(struct inode *, struct inode *, |
Jaegeuk Kim | bce8d11 | 2014-10-13 19:42:53 -0700 | [diff] [blame] | 1913 | const struct qstr *, struct page *); |
Chao Yu | dbeacf0 | 2014-09-24 18:17:04 +0800 | [diff] [blame] | 1914 | void update_parent_metadata(struct inode *, struct inode *, unsigned int); |
Jaegeuk Kim | a82afa2 | 2014-10-13 16:28:13 -0700 | [diff] [blame] | 1915 | int room_for_filename(const void *, int, int); |
Jaegeuk Kim | 9f7c45c | 2016-06-01 21:18:25 -0700 | [diff] [blame] | 1916 | void f2fs_drop_nlink(struct inode *, struct inode *); |
Al Viro | 185de68 | 2016-07-20 23:07:13 -0400 | [diff] [blame] | 1917 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *, const struct qstr *, |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1918 | struct page **); |
| 1919 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); |
Linus Torvalds | 835c92d | 2016-08-06 09:49:02 -0400 | [diff] [blame] | 1920 | ino_t f2fs_inode_by_name(struct inode *, const struct qstr *, struct page **); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1921 | void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, |
| 1922 | struct page *, struct inode *); |
Jaegeuk Kim | e7d5545 | 2015-04-29 17:02:18 -0700 | [diff] [blame] | 1923 | int update_dent_inode(struct inode *, struct inode *, const struct qstr *); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1924 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *, |
Chao Yu | 3b4d732 | 2015-02-16 16:17:20 +0800 | [diff] [blame] | 1925 | const struct qstr *, f2fs_hash_t , unsigned int); |
Chao Yu | 675f10b | 2016-02-22 18:29:18 +0800 | [diff] [blame] | 1926 | int f2fs_add_regular_entry(struct inode *, const struct qstr *, |
| 1927 | struct inode *, nid_t, umode_t); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1928 | int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t, |
| 1929 | umode_t); |
Chao Yu | dbeacf0 | 2014-09-24 18:17:04 +0800 | [diff] [blame] | 1930 | void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *, |
| 1931 | struct inode *); |
Jaegeuk Kim | b97a9b5 | 2014-06-20 21:37:02 -0700 | [diff] [blame] | 1932 | int f2fs_do_tmpfile(struct inode *, struct inode *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1933 | bool f2fs_empty_dir(struct inode *); |
| 1934 | |
Al Viro | b7f7a5e | 2013-01-25 16:15:43 -0500 | [diff] [blame] | 1935 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
| 1936 | { |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 1937 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1938 | inode, inode->i_ino, inode->i_mode); |
Al Viro | b7f7a5e | 2013-01-25 16:15:43 -0500 | [diff] [blame] | 1939 | } |
| 1940 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1941 | /* |
| 1942 | * super.c |
| 1943 | */ |
Jaegeuk Kim | b56ab83 | 2016-06-30 19:09:37 -0700 | [diff] [blame] | 1944 | int f2fs_inode_dirtied(struct inode *); |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 1945 | void f2fs_inode_synced(struct inode *); |
Chao Yu | c5bda1c | 2015-06-08 13:28:03 +0800 | [diff] [blame] | 1946 | int f2fs_commit_super(struct f2fs_sb_info *, bool); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1947 | int f2fs_sync_fs(struct super_block *, int); |
Namjae Jeon | a07ef78 | 2012-12-30 14:52:05 +0900 | [diff] [blame] | 1948 | extern __printf(3, 4) |
| 1949 | void f2fs_msg(struct super_block *, const char *, const char *, ...); |
Shawn Lin | 984ec63 | 2016-02-17 11:26:32 +0800 | [diff] [blame] | 1950 | int sanity_check_ckpt(struct f2fs_sb_info *sbi); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1951 | |
| 1952 | /* |
| 1953 | * hash.c |
| 1954 | */ |
Gu Zheng | eee6160 | 2014-06-24 18:21:23 +0800 | [diff] [blame] | 1955 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1956 | |
| 1957 | /* |
| 1958 | * node.c |
| 1959 | */ |
| 1960 | struct dnode_of_data; |
| 1961 | struct node_info; |
| 1962 | |
Jaegeuk Kim | 6fb03f3 | 2014-04-16 10:47:06 +0900 | [diff] [blame] | 1963 | bool available_free_memory(struct f2fs_sb_info *, int); |
Jaegeuk Kim | 2dcf51a | 2015-04-29 18:31:19 -0700 | [diff] [blame] | 1964 | int need_dentry_mark(struct f2fs_sb_info *, nid_t); |
Jaegeuk Kim | 88bd02c | 2014-09-15 14:50:48 -0700 | [diff] [blame] | 1965 | bool is_checkpointed_node(struct f2fs_sb_info *, nid_t); |
Jaegeuk Kim | 88bd02c | 2014-09-15 14:50:48 -0700 | [diff] [blame] | 1966 | bool need_inode_block_update(struct f2fs_sb_info *, nid_t); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1967 | void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); |
Chao Yu | 3cf4574 | 2016-01-26 15:40:44 +0800 | [diff] [blame] | 1968 | pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1969 | int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); |
| 1970 | int truncate_inode_blocks(struct inode *, pgoff_t); |
Jaegeuk Kim | 4f16fb0 | 2013-08-14 20:40:06 +0900 | [diff] [blame] | 1971 | int truncate_xattr_node(struct inode *, struct page *); |
Jaegeuk Kim | cfe58f9 | 2013-10-31 14:57:01 +0900 | [diff] [blame] | 1972 | int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t); |
Chao Yu | 13ec729 | 2015-08-24 17:40:45 +0800 | [diff] [blame] | 1973 | int remove_inode_page(struct inode *); |
Jaegeuk Kim | a014e03 | 2014-06-20 21:44:02 -0700 | [diff] [blame] | 1974 | struct page *new_inode_page(struct inode *); |
Jaegeuk Kim | 8ae8f16 | 2013-06-03 19:46:19 +0900 | [diff] [blame] | 1975 | struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1976 | void ra_node_page(struct f2fs_sb_info *, nid_t); |
| 1977 | struct page *get_node_page(struct f2fs_sb_info *, pgoff_t); |
| 1978 | struct page *get_node_page_ra(struct page *, int); |
Chao Yu | da011cc | 2016-04-27 21:40:15 +0800 | [diff] [blame] | 1979 | void move_node_page(struct page *, int); |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1980 | int fsync_node_pages(struct f2fs_sb_info *, struct inode *, |
| 1981 | struct writeback_control *, bool); |
Jaegeuk Kim | 5268137 | 2016-04-13 16:24:44 -0700 | [diff] [blame] | 1982 | int sync_node_pages(struct f2fs_sb_info *, struct writeback_control *); |
Jaegeuk Kim | ad4edb8 | 2016-06-16 16:41:49 -0700 | [diff] [blame] | 1983 | void build_free_nids(struct f2fs_sb_info *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1984 | bool alloc_nid(struct f2fs_sb_info *, nid_t *); |
| 1985 | void alloc_nid_done(struct f2fs_sb_info *, nid_t); |
| 1986 | void alloc_nid_failed(struct f2fs_sb_info *, nid_t); |
Chao Yu | 3169658 | 2015-07-28 18:33:46 +0800 | [diff] [blame] | 1987 | int try_to_free_nids(struct f2fs_sb_info *, int); |
Chao Yu | 70cfed8 | 2014-08-02 15:26:04 +0800 | [diff] [blame] | 1988 | void recover_inline_xattr(struct inode *, struct page *); |
Jaegeuk Kim | 1c35a90 | 2014-08-07 23:49:17 -0700 | [diff] [blame] | 1989 | void recover_xattr_data(struct inode *, struct page *, block_t); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1990 | int recover_inode_page(struct f2fs_sb_info *, struct page *); |
| 1991 | int restore_node_summary(struct f2fs_sb_info *, unsigned int, |
| 1992 | struct f2fs_summary_block *); |
| 1993 | void flush_nat_entries(struct f2fs_sb_info *); |
| 1994 | int build_node_manager(struct f2fs_sb_info *); |
| 1995 | void destroy_node_manager(struct f2fs_sb_info *); |
Namjae Jeon | 6e6093a | 2013-01-17 00:08:30 +0900 | [diff] [blame] | 1996 | int __init create_node_manager_caches(void); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1997 | void destroy_node_manager_caches(void); |
| 1998 | |
| 1999 | /* |
| 2000 | * segment.c |
| 2001 | */ |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 2002 | void register_inmem_page(struct inode *, struct page *); |
Chao Yu | 29b96b5 | 2016-02-06 14:38:29 +0800 | [diff] [blame] | 2003 | void drop_inmem_pages(struct inode *); |
| 2004 | int commit_inmem_pages(struct inode *); |
Jaegeuk Kim | 2c4db1a | 2016-01-07 14:15:04 -0800 | [diff] [blame] | 2005 | void f2fs_balance_fs(struct f2fs_sb_info *, bool); |
Jaegeuk Kim | 4660f9c | 2013-10-24 14:19:18 +0900 | [diff] [blame] | 2006 | void f2fs_balance_fs_bg(struct f2fs_sb_info *); |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 2007 | int f2fs_issue_flush(struct f2fs_sb_info *); |
Gu Zheng | 2163d19 | 2014-04-27 14:21:33 +0800 | [diff] [blame] | 2008 | int create_flush_cmd_control(struct f2fs_sb_info *); |
| 2009 | void destroy_flush_cmd_control(struct f2fs_sb_info *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2010 | void invalidate_blocks(struct f2fs_sb_info *, block_t); |
Jaegeuk Kim | 6e2c64a | 2015-10-07 12:28:41 -0700 | [diff] [blame] | 2011 | bool is_checkpointed_data(struct f2fs_sb_info *, block_t); |
Jaegeuk Kim | 5e44381 | 2014-01-28 12:22:14 +0900 | [diff] [blame] | 2012 | void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); |
Jaegeuk Kim | 836b5a6 | 2015-04-30 22:50:06 -0700 | [diff] [blame] | 2013 | void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *); |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2014 | void release_discard_addrs(struct f2fs_sb_info *); |
Chao Yu | e90c2d2 | 2015-07-28 18:36:47 +0800 | [diff] [blame] | 2015 | bool discard_next_dnode(struct f2fs_sb_info *, block_t); |
Chao Yu | 3fa06d7 | 2014-12-09 14:21:46 +0800 | [diff] [blame] | 2016 | int npages_for_summary_flush(struct f2fs_sb_info *, bool); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2017 | void allocate_new_segments(struct f2fs_sb_info *); |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2018 | int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2019 | struct page *get_sum_page(struct f2fs_sb_info *, unsigned int); |
Chao Yu | 381722d | 2015-05-19 17:40:04 +0800 | [diff] [blame] | 2020 | void update_meta_page(struct f2fs_sb_info *, void *, block_t); |
Jaegeuk Kim | 577e349 | 2013-01-24 19:56:11 +0900 | [diff] [blame] | 2021 | void write_meta_page(struct f2fs_sb_info *, struct page *); |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 2022 | void write_node_page(unsigned int, struct f2fs_io_info *); |
| 2023 | void write_data_page(struct dnode_of_data *, struct f2fs_io_info *); |
| 2024 | void rewrite_data_page(struct f2fs_io_info *); |
Chao Yu | 4356e48 | 2016-02-23 17:52:43 +0800 | [diff] [blame] | 2025 | void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *, |
| 2026 | block_t, block_t, bool, bool); |
Chao Yu | 528e345 | 2015-05-28 19:15:35 +0800 | [diff] [blame] | 2027 | void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *, |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 2028 | block_t, block_t, unsigned char, bool, bool); |
Jaegeuk Kim | bfad7c2 | 2013-12-16 19:04:05 +0900 | [diff] [blame] | 2029 | void allocate_data_block(struct f2fs_sb_info *, struct page *, |
| 2030 | block_t, block_t *, struct f2fs_summary *, int); |
Jaegeuk Kim | fec1d65 | 2016-01-20 23:43:51 +0800 | [diff] [blame] | 2031 | void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool); |
Chao Yu | 08b39fb | 2015-10-08 13:27:34 +0800 | [diff] [blame] | 2032 | void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2033 | void write_data_summaries(struct f2fs_sb_info *, block_t); |
| 2034 | void write_node_summaries(struct f2fs_sb_info *, block_t); |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 2035 | int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int); |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 2036 | void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2037 | int build_segment_manager(struct f2fs_sb_info *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2038 | void destroy_segment_manager(struct f2fs_sb_info *); |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 2039 | int __init create_segment_manager_caches(void); |
| 2040 | void destroy_segment_manager_caches(void); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2041 | |
| 2042 | /* |
| 2043 | * checkpoint.c |
| 2044 | */ |
Jaegeuk Kim | 38f91ca | 2016-05-18 14:07:56 -0700 | [diff] [blame] | 2045 | void f2fs_stop_checkpoint(struct f2fs_sb_info *, bool); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2046 | struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); |
| 2047 | struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); |
Chao Yu | 2b94700 | 2015-10-12 17:04:21 +0800 | [diff] [blame] | 2048 | struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t); |
Chao Yu | f0c9cad | 2015-04-18 18:05:36 +0800 | [diff] [blame] | 2049 | bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int); |
Chao Yu | 26879fb | 2015-10-12 17:05:59 +0800 | [diff] [blame] | 2050 | int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool); |
Chao Yu | 635aee1 | 2014-12-08 15:02:52 +0800 | [diff] [blame] | 2051 | void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2052 | long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); |
Chao Yu | a49324f | 2015-12-15 13:29:47 +0800 | [diff] [blame] | 2053 | void add_ino_entry(struct f2fs_sb_info *, nid_t, int type); |
| 2054 | void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type); |
Jaegeuk Kim | 74ef924 | 2016-05-02 22:09:56 -0700 | [diff] [blame] | 2055 | void release_ino_entry(struct f2fs_sb_info *, bool); |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 2056 | bool exist_written_data(struct f2fs_sb_info *, nid_t, int); |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 2057 | int f2fs_sync_inode_meta(struct f2fs_sb_info *); |
Jaegeuk Kim | cbd56e7 | 2013-07-30 11:36:53 +0900 | [diff] [blame] | 2058 | int acquire_orphan_inode(struct f2fs_sb_info *); |
| 2059 | void release_orphan_inode(struct f2fs_sb_info *); |
Jaegeuk Kim | 67c3758 | 2016-06-13 18:27:02 -0700 | [diff] [blame] | 2060 | void add_orphan_inode(struct inode *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2061 | void remove_orphan_inode(struct f2fs_sb_info *, nid_t); |
Chao Yu | 8c14bfa | 2015-08-07 17:58:43 +0800 | [diff] [blame] | 2062 | int recover_orphan_inodes(struct f2fs_sb_info *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2063 | int get_valid_checkpoint(struct f2fs_sb_info *); |
Jaegeuk Kim | a7ffdbe | 2014-09-12 15:53:45 -0700 | [diff] [blame] | 2064 | void update_dirty_page(struct inode *, struct page *); |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 2065 | void remove_dirty_inode(struct inode *); |
Chao Yu | 6d5a149 | 2015-12-24 18:04:56 +0800 | [diff] [blame] | 2066 | int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type); |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 2067 | int write_checkpoint(struct f2fs_sb_info *, struct cp_control *); |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 2068 | void init_ino_entry_info(struct f2fs_sb_info *); |
Namjae Jeon | 6e6093a | 2013-01-17 00:08:30 +0900 | [diff] [blame] | 2069 | int __init create_checkpoint_caches(void); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2070 | void destroy_checkpoint_caches(void); |
| 2071 | |
| 2072 | /* |
| 2073 | * data.c |
| 2074 | */ |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 2075 | void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int); |
Chao Yu | 0c3a579 | 2016-01-18 18:28:11 +0800 | [diff] [blame] | 2076 | void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *, |
| 2077 | struct page *, nid_t, enum page_type, int); |
Chao Yu | 406657d | 2016-02-24 17:17:55 +0800 | [diff] [blame] | 2078 | void f2fs_flush_merged_bios(struct f2fs_sb_info *); |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 2079 | int f2fs_submit_page_bio(struct f2fs_io_info *); |
| 2080 | void f2fs_submit_page_mbio(struct f2fs_io_info *); |
Chao Yu | 216a620 | 2015-03-19 19:23:32 +0800 | [diff] [blame] | 2081 | void set_data_blkaddr(struct dnode_of_data *); |
Chao Yu | f28b343 | 2016-02-24 17:16:47 +0800 | [diff] [blame] | 2082 | void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t); |
Chao Yu | 46008c6 | 2016-05-09 19:56:30 +0800 | [diff] [blame] | 2083 | int reserve_new_blocks(struct dnode_of_data *, blkcnt_t); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2084 | int reserve_new_block(struct dnode_of_data *); |
Fan Li | 759af1c | 2015-08-05 15:52:16 +0800 | [diff] [blame] | 2085 | int f2fs_get_block(struct dnode_of_data *, pgoff_t); |
Jaegeuk Kim | b439b10 | 2016-02-03 13:09:09 -0800 | [diff] [blame] | 2086 | ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *); |
Huajun Li | b600965 | 2013-11-10 23:13:18 +0800 | [diff] [blame] | 2087 | int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); |
Jaegeuk Kim | a56c7c6 | 2015-10-09 15:11:38 -0700 | [diff] [blame] | 2088 | struct page *get_read_data_page(struct inode *, pgoff_t, int, bool); |
Jaegeuk Kim | 43f3eae | 2015-04-30 17:00:33 -0700 | [diff] [blame] | 2089 | struct page *find_data_page(struct inode *, pgoff_t); |
Jaegeuk Kim | a56c7c6 | 2015-10-09 15:11:38 -0700 | [diff] [blame] | 2090 | struct page *get_lock_data_page(struct inode *, pgoff_t, bool); |
Jaegeuk Kim | 64aa7ed | 2013-05-20 09:55:50 +0900 | [diff] [blame] | 2091 | struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 2092 | int do_write_data_page(struct f2fs_io_info *); |
Chao Yu | d323d00 | 2015-10-27 09:53:45 +0800 | [diff] [blame] | 2093 | int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int); |
Jaegeuk Kim | 9ab7013 | 2014-06-08 04:30:14 +0900 | [diff] [blame] | 2094 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64); |
Jaegeuk Kim | fe76b79 | 2016-06-30 18:40:10 -0700 | [diff] [blame] | 2095 | void f2fs_set_page_dirty_nobuffers(struct page *); |
Chao Yu | 487261f | 2015-02-05 17:44:29 +0800 | [diff] [blame] | 2096 | void f2fs_invalidate_page(struct page *, unsigned int, unsigned int); |
| 2097 | int f2fs_release_page(struct page *, gfp_t); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2098 | |
| 2099 | /* |
| 2100 | * gc.c |
| 2101 | */ |
| 2102 | int start_gc_thread(struct f2fs_sb_info *); |
| 2103 | void stop_gc_thread(struct f2fs_sb_info *); |
Chao Yu | 81ca735 | 2016-01-26 15:39:35 +0800 | [diff] [blame] | 2104 | block_t start_bidx_of_node(unsigned int, struct inode *); |
Chao Yu | d530d4d | 2015-10-05 22:22:44 +0800 | [diff] [blame] | 2105 | int f2fs_gc(struct f2fs_sb_info *, bool); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2106 | void build_gc_manager(struct f2fs_sb_info *); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2107 | |
| 2108 | /* |
| 2109 | * recovery.c |
| 2110 | */ |
Jaegeuk Kim | 6781eab | 2016-03-23 16:12:58 -0700 | [diff] [blame] | 2111 | int recover_fsync_data(struct f2fs_sb_info *, bool); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2112 | bool space_for_roll_forward(struct f2fs_sb_info *); |
| 2113 | |
| 2114 | /* |
| 2115 | * debug.c |
| 2116 | */ |
| 2117 | #ifdef CONFIG_F2FS_STAT_FS |
| 2118 | struct f2fs_stat_info { |
| 2119 | struct list_head stat_list; |
| 2120 | struct f2fs_sb_info *sbi; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2121 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
| 2122 | int main_area_segs, main_area_sections, main_area_zones; |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 2123 | unsigned long long hit_largest, hit_cached, hit_rbtree; |
| 2124 | unsigned long long hit_total, total_ext; |
Jaegeuk Kim | c00ba55 | 2015-12-31 15:24:14 -0800 | [diff] [blame] | 2125 | int ext_tree, zombie_tree, ext_node; |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 2126 | s64 ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, inmem_pages; |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 2127 | unsigned int ndirty_dirs, ndirty_files, ndirty_all; |
Jaegeuk Kim | dd4e4b5 | 2015-01-07 11:09:37 -0800 | [diff] [blame] | 2128 | int nats, dirty_nats, sits, dirty_sits, fnids; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2129 | int total_count, utilization; |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 2130 | int bg_gc, wb_bios; |
Jaegeuk Kim | 652be55 | 2016-05-10 19:13:50 -0700 | [diff] [blame] | 2131 | int inline_xattr, inline_inode, inline_dir, orphans; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2132 | unsigned int valid_count, valid_node_count, valid_inode_count; |
| 2133 | unsigned int bimodal, avg_vblocks; |
| 2134 | int util_free, util_valid, util_invalid; |
| 2135 | int rsvd_segs, overp_segs; |
| 2136 | int dirty_count, node_pages, meta_pages; |
Jaegeuk Kim | 42190d2 | 2016-01-09 13:45:17 -0800 | [diff] [blame] | 2137 | int prefree_count, call_count, cp_count, bg_cp_count; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2138 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2139 | int bg_node_segs, bg_data_segs; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2140 | int tot_blks, data_blks, node_blks; |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2141 | int bg_data_blks, bg_node_blks; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2142 | int curseg[NR_CURSEG_TYPE]; |
| 2143 | int cursec[NR_CURSEG_TYPE]; |
| 2144 | int curzone[NR_CURSEG_TYPE]; |
| 2145 | |
| 2146 | unsigned int segment_count[2]; |
| 2147 | unsigned int block_count[2]; |
Changman Lee | b9a2c25 | 2014-12-24 02:16:54 +0900 | [diff] [blame] | 2148 | unsigned int inplace_count; |
Chao Yu | 9edcdab | 2015-09-11 14:43:52 +0800 | [diff] [blame] | 2149 | unsigned long long base_mem, cache_mem, page_mem; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2150 | }; |
| 2151 | |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 2152 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
| 2153 | { |
Chris Fries | 6c311ec | 2014-01-17 14:44:39 -0600 | [diff] [blame] | 2154 | return (struct f2fs_stat_info *)sbi->stat_info; |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 2155 | } |
| 2156 | |
Changman Lee | 942e0be | 2014-02-13 15:12:29 +0900 | [diff] [blame] | 2157 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
Jaegeuk Kim | 42190d2 | 2016-01-09 13:45:17 -0800 | [diff] [blame] | 2158 | #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) |
Jaegeuk Kim | dcdfff6 | 2013-10-22 20:56:10 +0900 | [diff] [blame] | 2159 | #define stat_inc_call_count(si) ((si)->call_count++) |
| 2160 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) |
Chao Yu | 33fbd51 | 2015-12-17 17:14:44 +0800 | [diff] [blame] | 2161 | #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) |
| 2162 | #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 2163 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) |
| 2164 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) |
| 2165 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) |
| 2166 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) |
Chao Yu | d5e8f6c | 2015-07-15 17:28:53 +0800 | [diff] [blame] | 2167 | #define stat_inc_inline_xattr(inode) \ |
| 2168 | do { \ |
| 2169 | if (f2fs_has_inline_xattr(inode)) \ |
| 2170 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ |
| 2171 | } while (0) |
| 2172 | #define stat_dec_inline_xattr(inode) \ |
| 2173 | do { \ |
| 2174 | if (f2fs_has_inline_xattr(inode)) \ |
| 2175 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ |
| 2176 | } while (0) |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 2177 | #define stat_inc_inline_inode(inode) \ |
| 2178 | do { \ |
| 2179 | if (f2fs_has_inline_data(inode)) \ |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 2180 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 2181 | } while (0) |
| 2182 | #define stat_dec_inline_inode(inode) \ |
| 2183 | do { \ |
| 2184 | if (f2fs_has_inline_data(inode)) \ |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 2185 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 2186 | } while (0) |
Jaegeuk Kim | 3289c06 | 2014-10-13 20:00:16 -0700 | [diff] [blame] | 2187 | #define stat_inc_inline_dir(inode) \ |
| 2188 | do { \ |
| 2189 | if (f2fs_has_inline_dentry(inode)) \ |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 2190 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
Jaegeuk Kim | 3289c06 | 2014-10-13 20:00:16 -0700 | [diff] [blame] | 2191 | } while (0) |
| 2192 | #define stat_dec_inline_dir(inode) \ |
| 2193 | do { \ |
| 2194 | if (f2fs_has_inline_dentry(inode)) \ |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 2195 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
Jaegeuk Kim | 3289c06 | 2014-10-13 20:00:16 -0700 | [diff] [blame] | 2196 | } while (0) |
Jaegeuk Kim | dcdfff6 | 2013-10-22 20:56:10 +0900 | [diff] [blame] | 2197 | #define stat_inc_seg_type(sbi, curseg) \ |
| 2198 | ((sbi)->segment_count[(curseg)->alloc_type]++) |
| 2199 | #define stat_inc_block_count(sbi, curseg) \ |
| 2200 | ((sbi)->block_count[(curseg)->alloc_type]++) |
Changman Lee | b9a2c25 | 2014-12-24 02:16:54 +0900 | [diff] [blame] | 2201 | #define stat_inc_inplace_blocks(sbi) \ |
| 2202 | (atomic_inc(&(sbi)->inplace_count)) |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2203 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2204 | do { \ |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 2205 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2206 | (si)->tot_segs++; \ |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2207 | if (type == SUM_TYPE_DATA) { \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2208 | si->data_segs++; \ |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2209 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
| 2210 | } else { \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2211 | si->node_segs++; \ |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2212 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
| 2213 | } \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2214 | } while (0) |
| 2215 | |
| 2216 | #define stat_inc_tot_blk_count(si, blks) \ |
| 2217 | (si->tot_blks += (blks)) |
| 2218 | |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2219 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2220 | do { \ |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 2221 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2222 | stat_inc_tot_blk_count(si, blks); \ |
| 2223 | si->data_blks += (blks); \ |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2224 | si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2225 | } while (0) |
| 2226 | |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2227 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2228 | do { \ |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 2229 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2230 | stat_inc_tot_blk_count(si, blks); \ |
| 2231 | si->node_blks += (blks); \ |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2232 | si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2233 | } while (0) |
| 2234 | |
| 2235 | int f2fs_build_stats(struct f2fs_sb_info *); |
| 2236 | void f2fs_destroy_stats(struct f2fs_sb_info *); |
Chao Yu | 787c7b8c | 2015-10-29 09:13:04 +0800 | [diff] [blame] | 2237 | int __init f2fs_create_root_stats(void); |
Namjae Jeon | 4589d25 | 2013-01-15 19:58:47 +0900 | [diff] [blame] | 2238 | void f2fs_destroy_root_stats(void); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2239 | #else |
Changman Lee | 942e0be | 2014-02-13 15:12:29 +0900 | [diff] [blame] | 2240 | #define stat_inc_cp_count(si) |
Jaegeuk Kim | 42190d2 | 2016-01-09 13:45:17 -0800 | [diff] [blame] | 2241 | #define stat_inc_bg_cp_count(si) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2242 | #define stat_inc_call_count(si) |
Jaegeuk Kim | dcdfff6 | 2013-10-22 20:56:10 +0900 | [diff] [blame] | 2243 | #define stat_inc_bggc_count(si) |
Chao Yu | 33fbd51 | 2015-12-17 17:14:44 +0800 | [diff] [blame] | 2244 | #define stat_inc_dirty_inode(sbi, type) |
| 2245 | #define stat_dec_dirty_inode(sbi, type) |
Jaegeuk Kim | dcdfff6 | 2013-10-22 20:56:10 +0900 | [diff] [blame] | 2246 | #define stat_inc_total_hit(sb) |
Chao Yu | 029e13c | 2015-08-19 19:13:25 +0800 | [diff] [blame] | 2247 | #define stat_inc_rbtree_node_hit(sb) |
Chao Yu | 91c481f | 2015-08-19 19:12:20 +0800 | [diff] [blame] | 2248 | #define stat_inc_largest_node_hit(sbi) |
| 2249 | #define stat_inc_cached_node_hit(sbi) |
Chao Yu | d5e8f6c | 2015-07-15 17:28:53 +0800 | [diff] [blame] | 2250 | #define stat_inc_inline_xattr(inode) |
| 2251 | #define stat_dec_inline_xattr(inode) |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 2252 | #define stat_inc_inline_inode(inode) |
| 2253 | #define stat_dec_inline_inode(inode) |
Jaegeuk Kim | 3289c06 | 2014-10-13 20:00:16 -0700 | [diff] [blame] | 2254 | #define stat_inc_inline_dir(inode) |
| 2255 | #define stat_dec_inline_dir(inode) |
Jaegeuk Kim | dcdfff6 | 2013-10-22 20:56:10 +0900 | [diff] [blame] | 2256 | #define stat_inc_seg_type(sbi, curseg) |
| 2257 | #define stat_inc_block_count(sbi, curseg) |
Changman Lee | b9a2c25 | 2014-12-24 02:16:54 +0900 | [diff] [blame] | 2258 | #define stat_inc_inplace_blocks(sbi) |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2259 | #define stat_inc_seg_count(sbi, type, gc_type) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2260 | #define stat_inc_tot_blk_count(si, blks) |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2261 | #define stat_inc_data_blk_count(sbi, blks, gc_type) |
| 2262 | #define stat_inc_node_blk_count(sbi, blks, gc_type) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2263 | |
| 2264 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } |
| 2265 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } |
Chao Yu | 787c7b8c | 2015-10-29 09:13:04 +0800 | [diff] [blame] | 2266 | static inline int __init f2fs_create_root_stats(void) { return 0; } |
Namjae Jeon | 4589d25 | 2013-01-15 19:58:47 +0900 | [diff] [blame] | 2267 | static inline void f2fs_destroy_root_stats(void) { } |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2268 | #endif |
| 2269 | |
| 2270 | extern const struct file_operations f2fs_dir_operations; |
| 2271 | extern const struct file_operations f2fs_file_operations; |
| 2272 | extern const struct inode_operations f2fs_file_inode_operations; |
| 2273 | extern const struct address_space_operations f2fs_dblock_aops; |
| 2274 | extern const struct address_space_operations f2fs_node_aops; |
| 2275 | extern const struct address_space_operations f2fs_meta_aops; |
| 2276 | extern const struct inode_operations f2fs_dir_inode_operations; |
| 2277 | extern const struct inode_operations f2fs_symlink_inode_operations; |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 2278 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2279 | extern const struct inode_operations f2fs_special_inode_operations; |
Jaegeuk Kim | 29e7043 | 2015-02-10 16:23:12 -0800 | [diff] [blame] | 2280 | extern struct kmem_cache *inode_entry_slab; |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 2281 | |
Huajun Li | e18c65b | 2013-11-10 23:13:19 +0800 | [diff] [blame] | 2282 | /* |
| 2283 | * inline.c |
| 2284 | */ |
Jaegeuk Kim | 01b960e | 2015-04-23 10:27:21 -0700 | [diff] [blame] | 2285 | bool f2fs_may_inline_data(struct inode *); |
| 2286 | bool f2fs_may_inline_dentry(struct inode *); |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 2287 | void read_inline_data(struct page *, struct page *); |
Chao Yu | 0bfcfcc | 2015-03-10 13:16:25 +0800 | [diff] [blame] | 2288 | bool truncate_inline_inode(struct page *, u64); |
Huajun Li | e18c65b | 2013-11-10 23:13:19 +0800 | [diff] [blame] | 2289 | int f2fs_read_inline_data(struct inode *, struct page *); |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 2290 | int f2fs_convert_inline_page(struct dnode_of_data *, struct page *); |
| 2291 | int f2fs_convert_inline_inode(struct inode *); |
| 2292 | int f2fs_write_inline_data(struct inode *, struct page *); |
Jaegeuk Kim | 0342fd3 | 2014-08-07 16:57:17 -0700 | [diff] [blame] | 2293 | bool recover_inline_data(struct inode *, struct page *); |
Jaegeuk Kim | 6e22c69 | 2015-04-27 17:12:39 -0700 | [diff] [blame] | 2294 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *, |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 2295 | struct fscrypt_name *, struct page **); |
Chao Yu | 201a05b | 2014-09-24 18:17:53 +0800 | [diff] [blame] | 2296 | int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 2297 | int f2fs_add_inline_entry(struct inode *, const struct qstr *, struct inode *, |
| 2298 | nid_t, umode_t); |
Chao Yu | 201a05b | 2014-09-24 18:17:53 +0800 | [diff] [blame] | 2299 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *, |
| 2300 | struct inode *, struct inode *); |
| 2301 | bool f2fs_empty_inline_dir(struct inode *); |
Jaegeuk Kim | d8c6822 | 2015-04-27 16:26:24 -0700 | [diff] [blame] | 2302 | int f2fs_read_inline_dir(struct file *, struct dir_context *, |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 2303 | struct fscrypt_str *); |
Jaegeuk Kim | 67f8cf3 | 2015-10-15 11:34:49 -0700 | [diff] [blame] | 2304 | int f2fs_inline_data_fiemap(struct inode *, |
| 2305 | struct fiemap_extent_info *, __u64, __u64); |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2306 | |
| 2307 | /* |
Jaegeuk Kim | 2658e50 | 2015-06-19 12:01:21 -0700 | [diff] [blame] | 2308 | * shrinker.c |
| 2309 | */ |
| 2310 | unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *); |
| 2311 | unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *); |
| 2312 | void f2fs_join_shrinker(struct f2fs_sb_info *); |
| 2313 | void f2fs_leave_shrinker(struct f2fs_sb_info *); |
| 2314 | |
| 2315 | /* |
Chao Yu | a28ef1f | 2015-07-08 17:59:36 +0800 | [diff] [blame] | 2316 | * extent_cache.c |
| 2317 | */ |
| 2318 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); |
Jaegeuk Kim | ed3d125 | 2015-12-28 11:39:06 -0800 | [diff] [blame] | 2319 | bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *); |
Jaegeuk Kim | 5f281fa | 2016-07-12 11:07:52 -0700 | [diff] [blame] | 2320 | void f2fs_drop_extent_tree(struct inode *); |
Chao Yu | a28ef1f | 2015-07-08 17:59:36 +0800 | [diff] [blame] | 2321 | unsigned int f2fs_destroy_extent_node(struct inode *); |
| 2322 | void f2fs_destroy_extent_tree(struct inode *); |
| 2323 | bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *); |
| 2324 | void f2fs_update_extent_cache(struct dnode_of_data *); |
Chao Yu | 19b2c30 | 2015-08-26 20:34:48 +0800 | [diff] [blame] | 2325 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, |
| 2326 | pgoff_t, block_t, unsigned int); |
Chao Yu | a28ef1f | 2015-07-08 17:59:36 +0800 | [diff] [blame] | 2327 | void init_extent_cache_info(struct f2fs_sb_info *); |
| 2328 | int __init create_extent_cache(void); |
| 2329 | void destroy_extent_cache(void); |
| 2330 | |
| 2331 | /* |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2332 | * crypto support |
| 2333 | */ |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 2334 | static inline bool f2fs_encrypted_inode(struct inode *inode) |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2335 | { |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2336 | return file_is_encrypt(inode); |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2337 | } |
| 2338 | |
| 2339 | static inline void f2fs_set_encrypted_inode(struct inode *inode) |
| 2340 | { |
| 2341 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
| 2342 | file_set_encrypt(inode); |
| 2343 | #endif |
| 2344 | } |
| 2345 | |
| 2346 | static inline bool f2fs_bio_encrypted(struct bio *bio) |
| 2347 | { |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 2348 | return bio->bi_private != NULL; |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2349 | } |
| 2350 | |
| 2351 | static inline int f2fs_sb_has_crypto(struct super_block *sb) |
| 2352 | { |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2353 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2354 | } |
Jaegeuk Kim | f424f66 | 2015-04-20 15:19:06 -0700 | [diff] [blame] | 2355 | |
Jaegeuk Kim | 52763a4 | 2016-06-13 09:47:48 -0700 | [diff] [blame] | 2356 | static inline int f2fs_sb_mounted_hmsmr(struct super_block *sb) |
| 2357 | { |
| 2358 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_HMSMR); |
| 2359 | } |
| 2360 | |
| 2361 | static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) |
| 2362 | { |
| 2363 | clear_opt(sbi, ADAPTIVE); |
| 2364 | clear_opt(sbi, LFS); |
| 2365 | |
| 2366 | switch (mt) { |
| 2367 | case F2FS_MOUNT_ADAPTIVE: |
| 2368 | set_opt(sbi, ADAPTIVE); |
| 2369 | break; |
| 2370 | case F2FS_MOUNT_LFS: |
| 2371 | set_opt(sbi, LFS); |
| 2372 | break; |
| 2373 | } |
| 2374 | } |
| 2375 | |
Jaegeuk Kim | fcc85a4 | 2015-04-21 20:39:58 -0700 | [diff] [blame] | 2376 | static inline bool f2fs_may_encrypt(struct inode *inode) |
| 2377 | { |
| 2378 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
Al Viro | 886f56f | 2015-12-05 03:56:06 -0500 | [diff] [blame] | 2379 | umode_t mode = inode->i_mode; |
Jaegeuk Kim | fcc85a4 | 2015-04-21 20:39:58 -0700 | [diff] [blame] | 2380 | |
| 2381 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); |
| 2382 | #else |
| 2383 | return 0; |
| 2384 | #endif |
| 2385 | } |
| 2386 | |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 2387 | #ifndef CONFIG_F2FS_FS_ENCRYPTION |
| 2388 | #define fscrypt_set_d_op(i) |
| 2389 | #define fscrypt_get_ctx fscrypt_notsupp_get_ctx |
| 2390 | #define fscrypt_release_ctx fscrypt_notsupp_release_ctx |
| 2391 | #define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page |
| 2392 | #define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page |
| 2393 | #define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages |
| 2394 | #define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page |
| 2395 | #define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page |
| 2396 | #define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range |
| 2397 | #define fscrypt_process_policy fscrypt_notsupp_process_policy |
| 2398 | #define fscrypt_get_policy fscrypt_notsupp_get_policy |
| 2399 | #define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context |
| 2400 | #define fscrypt_inherit_context fscrypt_notsupp_inherit_context |
| 2401 | #define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info |
| 2402 | #define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info |
| 2403 | #define fscrypt_setup_filename fscrypt_notsupp_setup_filename |
| 2404 | #define fscrypt_free_filename fscrypt_notsupp_free_filename |
| 2405 | #define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size |
| 2406 | #define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer |
| 2407 | #define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer |
| 2408 | #define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr |
| 2409 | #define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk |
Jaegeuk Kim | 57e5055 | 2015-04-20 19:52:47 -0700 | [diff] [blame] | 2410 | #endif |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2411 | #endif |