Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 1 | /* |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 2 | * fs/f2fs/checkpoint.c |
| 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 | #include <linux/fs.h> |
| 12 | #include <linux/bio.h> |
| 13 | #include <linux/mpage.h> |
| 14 | #include <linux/writeback.h> |
| 15 | #include <linux/blkdev.h> |
| 16 | #include <linux/f2fs_fs.h> |
| 17 | #include <linux/pagevec.h> |
| 18 | #include <linux/swap.h> |
| 19 | |
| 20 | #include "f2fs.h" |
| 21 | #include "node.h" |
| 22 | #include "segment.h" |
Jaegeuk Kim | 9e4ded3 | 2014-12-17 19:58:58 -0800 | [diff] [blame] | 23 | #include "trace.h" |
Namjae Jeon | 2af4bd6 | 2013-04-23 18:26:54 +0900 | [diff] [blame] | 24 | #include <trace/events/f2fs.h> |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 25 | |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 26 | static struct kmem_cache *ino_entry_slab; |
Chao Yu | 0629207 | 2014-12-29 15:56:18 +0800 | [diff] [blame] | 27 | struct kmem_cache *inode_entry_slab; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 28 | |
Jaegeuk Kim | 38f91ca | 2016-05-18 14:07:56 -0700 | [diff] [blame] | 29 | void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io) |
| 30 | { |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 31 | set_ckpt_flags(sbi, CP_ERROR_FLAG); |
Jaegeuk Kim | 38f91ca | 2016-05-18 14:07:56 -0700 | [diff] [blame] | 32 | if (!end_io) |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 33 | f2fs_flush_merged_writes(sbi); |
Jaegeuk Kim | 38f91ca | 2016-05-18 14:07:56 -0700 | [diff] [blame] | 34 | } |
| 35 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 36 | /* |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 37 | * We guarantee no failure on the returned page. |
| 38 | */ |
| 39 | struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
| 40 | { |
Gu Zheng | 9df27d9 | 2014-01-20 18:37:04 +0800 | [diff] [blame] | 41 | struct address_space *mapping = META_MAPPING(sbi); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 42 | struct page *page = NULL; |
| 43 | repeat: |
Jaegeuk Kim | 300e129 | 2016-04-29 16:11:53 -0700 | [diff] [blame] | 44 | page = f2fs_grab_cache_page(mapping, index, false); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 45 | if (!page) { |
| 46 | cond_resched(); |
| 47 | goto repeat; |
| 48 | } |
Jaegeuk Kim | fec1d65 | 2016-01-20 23:43:51 +0800 | [diff] [blame] | 49 | f2fs_wait_on_page_writeback(page, META, true); |
Jaegeuk Kim | 237c079 | 2016-06-30 18:49:15 -0700 | [diff] [blame] | 50 | if (!PageUptodate(page)) |
| 51 | SetPageUptodate(page); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 52 | return page; |
| 53 | } |
| 54 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 55 | /* |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 56 | * We guarantee no failure on the returned page. |
| 57 | */ |
Chao Yu | 2b94700 | 2015-10-12 17:04:21 +0800 | [diff] [blame] | 58 | static struct page *__get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index, |
| 59 | bool is_meta) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 60 | { |
Gu Zheng | 9df27d9 | 2014-01-20 18:37:04 +0800 | [diff] [blame] | 61 | struct address_space *mapping = META_MAPPING(sbi); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 62 | struct page *page; |
Jaegeuk Kim | cf04e8e | 2014-12-17 19:33:13 -0800 | [diff] [blame] | 63 | struct f2fs_io_info fio = { |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 64 | .sbi = sbi, |
Jaegeuk Kim | cf04e8e | 2014-12-17 19:33:13 -0800 | [diff] [blame] | 65 | .type = META, |
Mike Christie | 04d328d | 2016-06-05 14:31:55 -0500 | [diff] [blame] | 66 | .op = REQ_OP_READ, |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 67 | .op_flags = REQ_META | REQ_PRIO, |
Chao Yu | 7a9d754 | 2016-02-22 18:36:38 +0800 | [diff] [blame] | 68 | .old_blkaddr = index, |
| 69 | .new_blkaddr = index, |
Jaegeuk Kim | 4375a33 | 2015-04-23 12:04:33 -0700 | [diff] [blame] | 70 | .encrypted_page = NULL, |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 71 | .is_meta = is_meta, |
Jaegeuk Kim | cf04e8e | 2014-12-17 19:33:13 -0800 | [diff] [blame] | 72 | }; |
Chao Yu | 2b94700 | 2015-10-12 17:04:21 +0800 | [diff] [blame] | 73 | |
| 74 | if (unlikely(!is_meta)) |
Mike Christie | 04d328d | 2016-06-05 14:31:55 -0500 | [diff] [blame] | 75 | fio.op_flags &= ~REQ_META; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 76 | repeat: |
Jaegeuk Kim | 300e129 | 2016-04-29 16:11:53 -0700 | [diff] [blame] | 77 | page = f2fs_grab_cache_page(mapping, index, false); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 78 | if (!page) { |
| 79 | cond_resched(); |
| 80 | goto repeat; |
| 81 | } |
Jaegeuk Kim | 393ff91 | 2013-03-08 21:29:23 +0900 | [diff] [blame] | 82 | if (PageUptodate(page)) |
| 83 | goto out; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 84 | |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 85 | fio.page = page; |
| 86 | |
Jaegeuk Kim | 86531d6 | 2015-07-15 13:08:21 -0700 | [diff] [blame] | 87 | if (f2fs_submit_page_bio(&fio)) { |
| 88 | f2fs_put_page(page, 1); |
Jaegeuk Kim | 393ff91 | 2013-03-08 21:29:23 +0900 | [diff] [blame] | 89 | goto repeat; |
Jaegeuk Kim | 86531d6 | 2015-07-15 13:08:21 -0700 | [diff] [blame] | 90 | } |
Jaegeuk Kim | 393ff91 | 2013-03-08 21:29:23 +0900 | [diff] [blame] | 91 | |
| 92 | lock_page(page); |
Jaegeuk Kim | 6bacf52 | 2013-12-06 15:00:58 +0900 | [diff] [blame] | 93 | if (unlikely(page->mapping != mapping)) { |
Jaegeuk Kim | afcb7ca0 | 2013-04-26 11:55:17 +0900 | [diff] [blame] | 94 | f2fs_put_page(page, 1); |
| 95 | goto repeat; |
| 96 | } |
Chao Yu | f3f338c | 2015-07-29 17:33:13 +0800 | [diff] [blame] | 97 | |
| 98 | /* |
| 99 | * if there is any IO error when accessing device, make our filesystem |
| 100 | * readonly and make sure do not write checkpoint with non-uptodate |
| 101 | * meta page. |
| 102 | */ |
| 103 | if (unlikely(!PageUptodate(page))) |
Jaegeuk Kim | 38f91ca | 2016-05-18 14:07:56 -0700 | [diff] [blame] | 104 | f2fs_stop_checkpoint(sbi, false); |
Jaegeuk Kim | 393ff91 | 2013-03-08 21:29:23 +0900 | [diff] [blame] | 105 | out: |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 106 | return page; |
| 107 | } |
| 108 | |
Chao Yu | 2b94700 | 2015-10-12 17:04:21 +0800 | [diff] [blame] | 109 | struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
| 110 | { |
| 111 | return __get_meta_page(sbi, index, true); |
| 112 | } |
| 113 | |
| 114 | /* for POR only */ |
| 115 | struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index) |
| 116 | { |
| 117 | return __get_meta_page(sbi, index, false); |
| 118 | } |
| 119 | |
Chao Yu | f0c9cad | 2015-04-18 18:05:36 +0800 | [diff] [blame] | 120 | bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type) |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 121 | { |
| 122 | switch (type) { |
| 123 | case META_NAT: |
Chao Yu | 66b00c1 | 2014-12-08 14:59:17 +0800 | [diff] [blame] | 124 | break; |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 125 | case META_SIT: |
Chao Yu | 66b00c1 | 2014-12-08 14:59:17 +0800 | [diff] [blame] | 126 | if (unlikely(blkaddr >= SIT_BLK_CNT(sbi))) |
| 127 | return false; |
| 128 | break; |
Chao Yu | 81c1a0f1 | 2014-02-27 19:12:24 +0800 | [diff] [blame] | 129 | case META_SSA: |
Chao Yu | 66b00c1 | 2014-12-08 14:59:17 +0800 | [diff] [blame] | 130 | if (unlikely(blkaddr >= MAIN_BLKADDR(sbi) || |
| 131 | blkaddr < SM_I(sbi)->ssa_blkaddr)) |
| 132 | return false; |
| 133 | break; |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 134 | case META_CP: |
Chao Yu | 66b00c1 | 2014-12-08 14:59:17 +0800 | [diff] [blame] | 135 | if (unlikely(blkaddr >= SIT_I(sbi)->sit_base_addr || |
| 136 | blkaddr < __start_cp_addr(sbi))) |
| 137 | return false; |
| 138 | break; |
Jaegeuk Kim | 4c521f49 | 2014-09-11 13:49:55 -0700 | [diff] [blame] | 139 | case META_POR: |
Chao Yu | 66b00c1 | 2014-12-08 14:59:17 +0800 | [diff] [blame] | 140 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
| 141 | blkaddr < MAIN_BLKADDR(sbi))) |
| 142 | return false; |
| 143 | break; |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 144 | default: |
| 145 | BUG(); |
| 146 | } |
Chao Yu | 66b00c1 | 2014-12-08 14:59:17 +0800 | [diff] [blame] | 147 | |
| 148 | return true; |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | /* |
Chao Yu | 81c1a0f1 | 2014-02-27 19:12:24 +0800 | [diff] [blame] | 152 | * Readahead CP/NAT/SIT/SSA pages |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 153 | */ |
Chao Yu | 26879fb | 2015-10-12 17:05:59 +0800 | [diff] [blame] | 154 | int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, |
| 155 | int type, bool sync) |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 156 | { |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 157 | struct page *page; |
Jaegeuk Kim | 4c521f49 | 2014-09-11 13:49:55 -0700 | [diff] [blame] | 158 | block_t blkno = start; |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 159 | struct f2fs_io_info fio = { |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 160 | .sbi = sbi, |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 161 | .type = META, |
Mike Christie | 04d328d | 2016-06-05 14:31:55 -0500 | [diff] [blame] | 162 | .op = REQ_OP_READ, |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 163 | .op_flags = sync ? (REQ_META | REQ_PRIO) : REQ_RAHEAD, |
Jaegeuk Kim | 4375a33 | 2015-04-23 12:04:33 -0700 | [diff] [blame] | 164 | .encrypted_page = NULL, |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 165 | .in_list = false, |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 166 | .is_meta = (type != META_POR), |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 167 | }; |
Chao Yu | e9f5b8b | 2016-02-14 18:54:33 +0800 | [diff] [blame] | 168 | struct blk_plug plug; |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 169 | |
Chao Yu | 2b94700 | 2015-10-12 17:04:21 +0800 | [diff] [blame] | 170 | if (unlikely(type == META_POR)) |
Mike Christie | 04d328d | 2016-06-05 14:31:55 -0500 | [diff] [blame] | 171 | fio.op_flags &= ~REQ_META; |
Chao Yu | 2b94700 | 2015-10-12 17:04:21 +0800 | [diff] [blame] | 172 | |
Chao Yu | e9f5b8b | 2016-02-14 18:54:33 +0800 | [diff] [blame] | 173 | blk_start_plug(&plug); |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 174 | for (; nrpages-- > 0; blkno++) { |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 175 | |
Chao Yu | 66b00c1 | 2014-12-08 14:59:17 +0800 | [diff] [blame] | 176 | if (!is_valid_blkaddr(sbi, blkno, type)) |
| 177 | goto out; |
| 178 | |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 179 | switch (type) { |
| 180 | case META_NAT: |
Chao Yu | 66b00c1 | 2014-12-08 14:59:17 +0800 | [diff] [blame] | 181 | if (unlikely(blkno >= |
| 182 | NAT_BLOCK_OFFSET(NM_I(sbi)->max_nid))) |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 183 | blkno = 0; |
Chao Yu | 66b00c1 | 2014-12-08 14:59:17 +0800 | [diff] [blame] | 184 | /* get nat block addr */ |
Chao Yu | 7a9d754 | 2016-02-22 18:36:38 +0800 | [diff] [blame] | 185 | fio.new_blkaddr = current_nat_addr(sbi, |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 186 | blkno * NAT_ENTRY_PER_BLOCK); |
| 187 | break; |
| 188 | case META_SIT: |
| 189 | /* get sit block addr */ |
Chao Yu | 7a9d754 | 2016-02-22 18:36:38 +0800 | [diff] [blame] | 190 | fio.new_blkaddr = current_sit_addr(sbi, |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 191 | blkno * SIT_ENTRY_PER_BLOCK); |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 192 | break; |
Chao Yu | 81c1a0f1 | 2014-02-27 19:12:24 +0800 | [diff] [blame] | 193 | case META_SSA: |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 194 | case META_CP: |
Jaegeuk Kim | 4c521f49 | 2014-09-11 13:49:55 -0700 | [diff] [blame] | 195 | case META_POR: |
Chao Yu | 7a9d754 | 2016-02-22 18:36:38 +0800 | [diff] [blame] | 196 | fio.new_blkaddr = blkno; |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 197 | break; |
| 198 | default: |
| 199 | BUG(); |
| 200 | } |
| 201 | |
Jaegeuk Kim | 300e129 | 2016-04-29 16:11:53 -0700 | [diff] [blame] | 202 | page = f2fs_grab_cache_page(META_MAPPING(sbi), |
| 203 | fio.new_blkaddr, false); |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 204 | if (!page) |
| 205 | continue; |
| 206 | if (PageUptodate(page)) { |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 207 | f2fs_put_page(page, 1); |
| 208 | continue; |
| 209 | } |
| 210 | |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 211 | fio.page = page; |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 212 | f2fs_submit_page_bio(&fio); |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 213 | f2fs_put_page(page, 0); |
| 214 | } |
| 215 | out: |
Chao Yu | e9f5b8b | 2016-02-14 18:54:33 +0800 | [diff] [blame] | 216 | blk_finish_plug(&plug); |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 217 | return blkno - start; |
| 218 | } |
| 219 | |
Chao Yu | 635aee1 | 2014-12-08 15:02:52 +0800 | [diff] [blame] | 220 | void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index) |
| 221 | { |
| 222 | struct page *page; |
| 223 | bool readahead = false; |
| 224 | |
| 225 | page = find_get_page(META_MAPPING(sbi), index); |
Jaegeuk Kim | 4da7bf5 | 2016-04-06 11:27:03 -0700 | [diff] [blame] | 226 | if (!page || !PageUptodate(page)) |
Chao Yu | 635aee1 | 2014-12-08 15:02:52 +0800 | [diff] [blame] | 227 | readahead = true; |
| 228 | f2fs_put_page(page, 0); |
| 229 | |
| 230 | if (readahead) |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 231 | ra_meta_pages(sbi, index, BIO_MAX_PAGES, META_POR, true); |
Chao Yu | 635aee1 | 2014-12-08 15:02:52 +0800 | [diff] [blame] | 232 | } |
| 233 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 234 | static int __f2fs_write_meta_page(struct page *page, |
| 235 | struct writeback_control *wbc, |
| 236 | enum iostat_type io_type) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 237 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 238 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
Jaegeuk Kim | 577e349 | 2013-01-24 19:56:11 +0900 | [diff] [blame] | 239 | |
Chao Yu | ecda0de | 2014-05-06 16:48:26 +0800 | [diff] [blame] | 240 | trace_f2fs_writepage(page, META); |
| 241 | |
Jaegeuk Kim | 2f17e34 | 2017-11-16 16:59:14 +0800 | [diff] [blame] | 242 | if (unlikely(f2fs_cp_error(sbi))) { |
| 243 | dec_page_count(sbi, F2FS_DIRTY_META); |
| 244 | unlock_page(page); |
| 245 | return 0; |
| 246 | } |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 247 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 248 | goto redirty_out; |
Jaegeuk Kim | 857dc4e | 2014-11-19 11:03:34 -0800 | [diff] [blame] | 249 | if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0)) |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 250 | goto redirty_out; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 251 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 252 | write_meta_page(sbi, page, io_type); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 253 | dec_page_count(sbi, F2FS_DIRTY_META); |
Chao Yu | 0c3a579 | 2016-01-18 18:28:11 +0800 | [diff] [blame] | 254 | |
| 255 | if (wbc->for_reclaim) |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 256 | f2fs_submit_merged_write_cond(sbi, page->mapping->host, |
| 257 | 0, page->index, META); |
Chao Yu | 0c3a579 | 2016-01-18 18:28:11 +0800 | [diff] [blame] | 258 | |
Jaegeuk Kim | 577e349 | 2013-01-24 19:56:11 +0900 | [diff] [blame] | 259 | unlock_page(page); |
Jaegeuk Kim | 857dc4e | 2014-11-19 11:03:34 -0800 | [diff] [blame] | 260 | |
Chao Yu | 0c3a579 | 2016-01-18 18:28:11 +0800 | [diff] [blame] | 261 | if (unlikely(f2fs_cp_error(sbi))) |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 262 | f2fs_submit_merged_write(sbi, META); |
Chao Yu | 0c3a579 | 2016-01-18 18:28:11 +0800 | [diff] [blame] | 263 | |
Jaegeuk Kim | 577e349 | 2013-01-24 19:56:11 +0900 | [diff] [blame] | 264 | return 0; |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 265 | |
| 266 | redirty_out: |
Jaegeuk Kim | 76f6026 | 2014-04-15 16:04:15 +0900 | [diff] [blame] | 267 | redirty_page_for_writepage(wbc, page); |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 268 | return AOP_WRITEPAGE_ACTIVATE; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 269 | } |
| 270 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 271 | static int f2fs_write_meta_page(struct page *page, |
| 272 | struct writeback_control *wbc) |
| 273 | { |
| 274 | return __f2fs_write_meta_page(page, wbc, FS_META_IO); |
| 275 | } |
| 276 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 277 | static int f2fs_write_meta_pages(struct address_space *mapping, |
| 278 | struct writeback_control *wbc) |
| 279 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 280 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
Jaegeuk Kim | 50c8cdb | 2014-03-18 13:47:11 +0900 | [diff] [blame] | 281 | long diff, written; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 282 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 283 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
| 284 | goto skip_write; |
| 285 | |
Jaegeuk Kim | 5459aa9 | 2013-12-17 17:28:41 +0900 | [diff] [blame] | 286 | /* collect a number of dirty meta pages and write together */ |
Jaegeuk Kim | 50c8cdb | 2014-03-18 13:47:11 +0900 | [diff] [blame] | 287 | if (wbc->for_kupdate || |
| 288 | get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META)) |
Jaegeuk Kim | d3baf95 | 2014-03-18 13:43:05 +0900 | [diff] [blame] | 289 | goto skip_write; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 290 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 291 | /* if locked failed, cp will flush dirty pages instead */ |
| 292 | if (!mutex_trylock(&sbi->cp_mutex)) |
| 293 | goto skip_write; |
Yunlei He | d31c7c3 | 2016-02-04 16:14:00 +0800 | [diff] [blame] | 294 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 295 | trace_f2fs_writepages(mapping->host, wbc, META); |
Jaegeuk Kim | 50c8cdb | 2014-03-18 13:47:11 +0900 | [diff] [blame] | 296 | diff = nr_pages_to_write(sbi, META, wbc); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 297 | written = sync_meta_pages(sbi, META, wbc->nr_to_write, FS_META_IO); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 298 | mutex_unlock(&sbi->cp_mutex); |
Jaegeuk Kim | 50c8cdb | 2014-03-18 13:47:11 +0900 | [diff] [blame] | 299 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 300 | return 0; |
Jaegeuk Kim | d3baf95 | 2014-03-18 13:43:05 +0900 | [diff] [blame] | 301 | |
| 302 | skip_write: |
| 303 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META); |
Yunlei He | d31c7c3 | 2016-02-04 16:14:00 +0800 | [diff] [blame] | 304 | trace_f2fs_writepages(mapping->host, wbc, META); |
Jaegeuk Kim | d3baf95 | 2014-03-18 13:43:05 +0900 | [diff] [blame] | 305 | return 0; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 309 | long nr_to_write, enum iostat_type io_type) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 310 | { |
Gu Zheng | 9df27d9 | 2014-01-20 18:37:04 +0800 | [diff] [blame] | 311 | struct address_space *mapping = META_MAPPING(sbi); |
Chao Yu | 80dd9c0 | 2016-02-24 17:20:44 +0800 | [diff] [blame] | 312 | pgoff_t index = 0, end = ULONG_MAX, prev = ULONG_MAX; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 313 | struct pagevec pvec; |
| 314 | long nwritten = 0; |
| 315 | struct writeback_control wbc = { |
| 316 | .for_reclaim = 0, |
| 317 | }; |
Chao Yu | e9f5b8b | 2016-02-14 18:54:33 +0800 | [diff] [blame] | 318 | struct blk_plug plug; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 319 | |
| 320 | pagevec_init(&pvec, 0); |
| 321 | |
Chao Yu | e9f5b8b | 2016-02-14 18:54:33 +0800 | [diff] [blame] | 322 | blk_start_plug(&plug); |
| 323 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 324 | while (index <= end) { |
| 325 | int i, nr_pages; |
| 326 | nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, |
| 327 | PAGECACHE_TAG_DIRTY, |
| 328 | min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1); |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 329 | if (unlikely(nr_pages == 0)) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 330 | break; |
| 331 | |
| 332 | for (i = 0; i < nr_pages; i++) { |
| 333 | struct page *page = pvec.pages[i]; |
Jaegeuk Kim | 203681f | 2014-02-05 13:03:57 +0900 | [diff] [blame] | 334 | |
Chao Yu | 80dd9c0 | 2016-02-24 17:20:44 +0800 | [diff] [blame] | 335 | if (prev == ULONG_MAX) |
Jaegeuk Kim | 6066d8c | 2015-10-01 16:42:55 -0700 | [diff] [blame] | 336 | prev = page->index - 1; |
| 337 | if (nr_to_write != LONG_MAX && page->index != prev + 1) { |
| 338 | pagevec_release(&pvec); |
| 339 | goto stop; |
| 340 | } |
| 341 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 342 | lock_page(page); |
Jaegeuk Kim | 203681f | 2014-02-05 13:03:57 +0900 | [diff] [blame] | 343 | |
| 344 | if (unlikely(page->mapping != mapping)) { |
| 345 | continue_unlock: |
| 346 | unlock_page(page); |
| 347 | continue; |
| 348 | } |
| 349 | if (!PageDirty(page)) { |
| 350 | /* someone wrote it for us */ |
| 351 | goto continue_unlock; |
| 352 | } |
| 353 | |
Jaegeuk Kim | fa3d2bd | 2016-01-28 11:48:52 -0800 | [diff] [blame] | 354 | f2fs_wait_on_page_writeback(page, META, true); |
| 355 | |
| 356 | BUG_ON(PageWriteback(page)); |
Jaegeuk Kim | 203681f | 2014-02-05 13:03:57 +0900 | [diff] [blame] | 357 | if (!clear_page_dirty_for_io(page)) |
| 358 | goto continue_unlock; |
| 359 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 360 | if (__f2fs_write_meta_page(page, &wbc, io_type)) { |
Jaegeuk Kim | 577e349 | 2013-01-24 19:56:11 +0900 | [diff] [blame] | 361 | unlock_page(page); |
| 362 | break; |
| 363 | } |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 364 | nwritten++; |
Jaegeuk Kim | 6066d8c | 2015-10-01 16:42:55 -0700 | [diff] [blame] | 365 | prev = page->index; |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 366 | if (unlikely(nwritten >= nr_to_write)) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 367 | break; |
| 368 | } |
| 369 | pagevec_release(&pvec); |
| 370 | cond_resched(); |
| 371 | } |
Jaegeuk Kim | 6066d8c | 2015-10-01 16:42:55 -0700 | [diff] [blame] | 372 | stop: |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 373 | if (nwritten) |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 374 | f2fs_submit_merged_write(sbi, type); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 375 | |
Chao Yu | e9f5b8b | 2016-02-14 18:54:33 +0800 | [diff] [blame] | 376 | blk_finish_plug(&plug); |
| 377 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 378 | return nwritten; |
| 379 | } |
| 380 | |
| 381 | static int f2fs_set_meta_page_dirty(struct page *page) |
| 382 | { |
Jaegeuk Kim | 26c6b88 | 2013-10-24 17:53:29 +0900 | [diff] [blame] | 383 | trace_f2fs_set_page_dirty(page, META); |
| 384 | |
Jaegeuk Kim | 237c079 | 2016-06-30 18:49:15 -0700 | [diff] [blame] | 385 | if (!PageUptodate(page)) |
| 386 | SetPageUptodate(page); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 387 | if (!PageDirty(page)) { |
Jaegeuk Kim | a25efd8 | 2018-04-20 19:29:52 -0700 | [diff] [blame] | 388 | __set_page_dirty_nobuffers(page); |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 389 | inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_META); |
Chao Yu | 1601839 | 2015-01-19 20:24:37 +0800 | [diff] [blame] | 390 | SetPagePrivate(page); |
Jaegeuk Kim | 9e4ded3 | 2014-12-17 19:58:58 -0800 | [diff] [blame] | 391 | f2fs_trace_pid(page); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 392 | return 1; |
| 393 | } |
| 394 | return 0; |
| 395 | } |
| 396 | |
| 397 | const struct address_space_operations f2fs_meta_aops = { |
| 398 | .writepage = f2fs_write_meta_page, |
| 399 | .writepages = f2fs_write_meta_pages, |
| 400 | .set_page_dirty = f2fs_set_meta_page_dirty, |
Chao Yu | 487261f | 2015-02-05 17:44:29 +0800 | [diff] [blame] | 401 | .invalidatepage = f2fs_invalidate_page, |
| 402 | .releasepage = f2fs_release_page, |
Weichao Guo | 5b7a487 | 2016-09-20 05:03:27 +0800 | [diff] [blame] | 403 | #ifdef CONFIG_MIGRATION |
| 404 | .migratepage = f2fs_migrate_page, |
| 405 | #endif |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 406 | }; |
| 407 | |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 408 | static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, |
| 409 | unsigned int devidx, int type) |
Jaegeuk Kim | 953e6cc | 2014-07-25 15:47:16 -0700 | [diff] [blame] | 410 | { |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 411 | struct inode_management *im = &sbi->im[type]; |
Jaegeuk Kim | 80c5450 | 2015-08-20 08:51:56 -0700 | [diff] [blame] | 412 | struct ino_entry *e, *tmp; |
| 413 | |
| 414 | tmp = f2fs_kmem_cache_alloc(ino_entry_slab, GFP_NOFS); |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 415 | |
Jaegeuk Kim | 80c5450 | 2015-08-20 08:51:56 -0700 | [diff] [blame] | 416 | radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); |
Jaegeuk Kim | 769ec6e | 2014-12-03 20:47:26 -0800 | [diff] [blame] | 417 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 418 | spin_lock(&im->ino_lock); |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 419 | e = radix_tree_lookup(&im->ino_root, ino); |
Jaegeuk Kim | 39efac4 | 2014-07-24 18:15:17 -0700 | [diff] [blame] | 420 | if (!e) { |
Jaegeuk Kim | 80c5450 | 2015-08-20 08:51:56 -0700 | [diff] [blame] | 421 | e = tmp; |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 422 | if (unlikely(radix_tree_insert(&im->ino_root, ino, e))) |
| 423 | f2fs_bug_on(sbi, 1); |
| 424 | |
Jaegeuk Kim | 39efac4 | 2014-07-24 18:15:17 -0700 | [diff] [blame] | 425 | memset(e, 0, sizeof(struct ino_entry)); |
| 426 | e->ino = ino; |
| 427 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 428 | list_add_tail(&e->list, &im->ino_list); |
Jaegeuk Kim | 8c40294 | 2014-11-06 15:16:04 -0800 | [diff] [blame] | 429 | if (type != ORPHAN_INO) |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 430 | im->ino_num++; |
Jaegeuk Kim | 39efac4 | 2014-07-24 18:15:17 -0700 | [diff] [blame] | 431 | } |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 432 | |
| 433 | if (type == FLUSH_INO) |
| 434 | f2fs_set_bit(devidx, (char *)&e->dirty_device); |
| 435 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 436 | spin_unlock(&im->ino_lock); |
Jaegeuk Kim | 769ec6e | 2014-12-03 20:47:26 -0800 | [diff] [blame] | 437 | radix_tree_preload_end(); |
Jaegeuk Kim | 80c5450 | 2015-08-20 08:51:56 -0700 | [diff] [blame] | 438 | |
| 439 | if (e != tmp) |
| 440 | kmem_cache_free(ino_entry_slab, tmp); |
Jaegeuk Kim | 953e6cc | 2014-07-25 15:47:16 -0700 | [diff] [blame] | 441 | } |
| 442 | |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 443 | static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
Jaegeuk Kim | 953e6cc | 2014-07-25 15:47:16 -0700 | [diff] [blame] | 444 | { |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 445 | struct inode_management *im = &sbi->im[type]; |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 446 | struct ino_entry *e; |
Jaegeuk Kim | 953e6cc | 2014-07-25 15:47:16 -0700 | [diff] [blame] | 447 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 448 | spin_lock(&im->ino_lock); |
| 449 | e = radix_tree_lookup(&im->ino_root, ino); |
Jaegeuk Kim | 39efac4 | 2014-07-24 18:15:17 -0700 | [diff] [blame] | 450 | if (e) { |
| 451 | list_del(&e->list); |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 452 | radix_tree_delete(&im->ino_root, ino); |
| 453 | im->ino_num--; |
| 454 | spin_unlock(&im->ino_lock); |
Jaegeuk Kim | 39efac4 | 2014-07-24 18:15:17 -0700 | [diff] [blame] | 455 | kmem_cache_free(ino_entry_slab, e); |
| 456 | return; |
Jaegeuk Kim | 953e6cc | 2014-07-25 15:47:16 -0700 | [diff] [blame] | 457 | } |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 458 | spin_unlock(&im->ino_lock); |
Jaegeuk Kim | 953e6cc | 2014-07-25 15:47:16 -0700 | [diff] [blame] | 459 | } |
| 460 | |
Chao Yu | a49324f | 2015-12-15 13:29:47 +0800 | [diff] [blame] | 461 | void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 462 | { |
| 463 | /* add new dirty ino entry into list */ |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 464 | __add_ino_entry(sbi, ino, 0, type); |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 465 | } |
| 466 | |
Chao Yu | a49324f | 2015-12-15 13:29:47 +0800 | [diff] [blame] | 467 | void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 468 | { |
| 469 | /* remove dirty ino entry from list */ |
| 470 | __remove_ino_entry(sbi, ino, type); |
| 471 | } |
| 472 | |
| 473 | /* mode should be APPEND_INO or UPDATE_INO */ |
| 474 | bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode) |
| 475 | { |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 476 | struct inode_management *im = &sbi->im[mode]; |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 477 | struct ino_entry *e; |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 478 | |
| 479 | spin_lock(&im->ino_lock); |
| 480 | e = radix_tree_lookup(&im->ino_root, ino); |
| 481 | spin_unlock(&im->ino_lock); |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 482 | return e ? true : false; |
| 483 | } |
| 484 | |
Jaegeuk Kim | 74ef924 | 2016-05-02 22:09:56 -0700 | [diff] [blame] | 485 | void release_ino_entry(struct f2fs_sb_info *sbi, bool all) |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 486 | { |
| 487 | struct ino_entry *e, *tmp; |
| 488 | int i; |
| 489 | |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 490 | for (i = all ? ORPHAN_INO : APPEND_INO; i < MAX_INO_ENTRY; i++) { |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 491 | struct inode_management *im = &sbi->im[i]; |
| 492 | |
| 493 | spin_lock(&im->ino_lock); |
| 494 | list_for_each_entry_safe(e, tmp, &im->ino_list, list) { |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 495 | list_del(&e->list); |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 496 | radix_tree_delete(&im->ino_root, e->ino); |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 497 | kmem_cache_free(ino_entry_slab, e); |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 498 | im->ino_num--; |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 499 | } |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 500 | spin_unlock(&im->ino_lock); |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 501 | } |
| 502 | } |
| 503 | |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 504 | void set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
| 505 | unsigned int devidx, int type) |
| 506 | { |
| 507 | __add_ino_entry(sbi, ino, devidx, type); |
| 508 | } |
| 509 | |
| 510 | bool is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
| 511 | unsigned int devidx, int type) |
| 512 | { |
| 513 | struct inode_management *im = &sbi->im[type]; |
| 514 | struct ino_entry *e; |
| 515 | bool is_dirty = false; |
| 516 | |
| 517 | spin_lock(&im->ino_lock); |
| 518 | e = radix_tree_lookup(&im->ino_root, ino); |
| 519 | if (e && f2fs_test_bit(devidx, (char *)&e->dirty_device)) |
| 520 | is_dirty = true; |
| 521 | spin_unlock(&im->ino_lock); |
| 522 | return is_dirty; |
| 523 | } |
| 524 | |
Jaegeuk Kim | cbd56e7 | 2013-07-30 11:36:53 +0900 | [diff] [blame] | 525 | int acquire_orphan_inode(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 526 | { |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 527 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 528 | int err = 0; |
| 529 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 530 | spin_lock(&im->ino_lock); |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 531 | |
| 532 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
Chao Yu | 1ecc0c5 | 2016-09-23 21:30:09 +0800 | [diff] [blame] | 533 | if (time_to_inject(sbi, FAULT_ORPHAN)) { |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 534 | spin_unlock(&im->ino_lock); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 535 | f2fs_show_injection_info(FAULT_ORPHAN); |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 536 | return -ENOSPC; |
| 537 | } |
| 538 | #endif |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 539 | if (unlikely(im->ino_num >= sbi->max_orphans)) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 540 | err = -ENOSPC; |
Jaegeuk Kim | cbd56e7 | 2013-07-30 11:36:53 +0900 | [diff] [blame] | 541 | else |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 542 | im->ino_num++; |
| 543 | spin_unlock(&im->ino_lock); |
Gu Zheng | 0d47c1a | 2013-12-26 18:24:19 +0800 | [diff] [blame] | 544 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 545 | return err; |
| 546 | } |
| 547 | |
Jaegeuk Kim | cbd56e7 | 2013-07-30 11:36:53 +0900 | [diff] [blame] | 548 | void release_orphan_inode(struct f2fs_sb_info *sbi) |
| 549 | { |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 550 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
| 551 | |
| 552 | spin_lock(&im->ino_lock); |
| 553 | f2fs_bug_on(sbi, im->ino_num == 0); |
| 554 | im->ino_num--; |
| 555 | spin_unlock(&im->ino_lock); |
Jaegeuk Kim | cbd56e7 | 2013-07-30 11:36:53 +0900 | [diff] [blame] | 556 | } |
| 557 | |
Jaegeuk Kim | 67c3758 | 2016-06-13 18:27:02 -0700 | [diff] [blame] | 558 | void add_orphan_inode(struct inode *inode) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 559 | { |
Jaegeuk Kim | 39efac4 | 2014-07-24 18:15:17 -0700 | [diff] [blame] | 560 | /* add new orphan ino entry into list */ |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 561 | __add_ino_entry(F2FS_I_SB(inode), inode->i_ino, 0, ORPHAN_INO); |
Jaegeuk Kim | 67c3758 | 2016-06-13 18:27:02 -0700 | [diff] [blame] | 562 | update_inode_page(inode); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 563 | } |
| 564 | |
| 565 | void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
| 566 | { |
Jaegeuk Kim | 953e6cc | 2014-07-25 15:47:16 -0700 | [diff] [blame] | 567 | /* remove orphan entry from orphan list */ |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 568 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 569 | } |
| 570 | |
Chao Yu | 8c14bfa | 2015-08-07 17:58:43 +0800 | [diff] [blame] | 571 | static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 572 | { |
Chao Yu | 8c14bfa | 2015-08-07 17:58:43 +0800 | [diff] [blame] | 573 | struct inode *inode; |
Jaegeuk Kim | 5905f9a | 2016-09-12 15:08:37 -0700 | [diff] [blame] | 574 | struct node_info ni; |
Jaegeuk Kim | d41065e | 2016-09-21 11:39:42 -0700 | [diff] [blame] | 575 | int err = acquire_orphan_inode(sbi); |
| 576 | |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 577 | if (err) |
| 578 | goto err_out; |
Jaegeuk Kim | d41065e | 2016-09-21 11:39:42 -0700 | [diff] [blame] | 579 | |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 580 | __add_ino_entry(sbi, ino, 0, ORPHAN_INO); |
Chao Yu | 8c14bfa | 2015-08-07 17:58:43 +0800 | [diff] [blame] | 581 | |
Jaegeuk Kim | 5905f9a | 2016-09-12 15:08:37 -0700 | [diff] [blame] | 582 | inode = f2fs_iget_retry(sbi->sb, ino); |
Chao Yu | 8c14bfa | 2015-08-07 17:58:43 +0800 | [diff] [blame] | 583 | if (IS_ERR(inode)) { |
| 584 | /* |
| 585 | * there should be a bug that we can't find the entry |
| 586 | * to orphan inode. |
| 587 | */ |
| 588 | f2fs_bug_on(sbi, PTR_ERR(inode) == -ENOENT); |
| 589 | return PTR_ERR(inode); |
| 590 | } |
| 591 | |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 592 | err = dquot_initialize(inode); |
| 593 | if (err) |
| 594 | goto err_out; |
| 595 | |
| 596 | dquot_initialize(inode); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 597 | clear_nlink(inode); |
| 598 | |
| 599 | /* truncate all the data during iput */ |
| 600 | iput(inode); |
Jaegeuk Kim | 5905f9a | 2016-09-12 15:08:37 -0700 | [diff] [blame] | 601 | |
| 602 | get_node_info(sbi, ino, &ni); |
| 603 | |
| 604 | /* ENOMEM was fully retried in f2fs_evict_inode. */ |
| 605 | if (ni.blk_addr != NULL_ADDR) { |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 606 | err = -EIO; |
| 607 | goto err_out; |
Jaegeuk Kim | 5905f9a | 2016-09-12 15:08:37 -0700 | [diff] [blame] | 608 | } |
Jaegeuk Kim | d41065e | 2016-09-21 11:39:42 -0700 | [diff] [blame] | 609 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
Chao Yu | 8c14bfa | 2015-08-07 17:58:43 +0800 | [diff] [blame] | 610 | return 0; |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 611 | |
| 612 | err_out: |
| 613 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
| 614 | f2fs_msg(sbi->sb, KERN_WARNING, |
| 615 | "%s: orphan failed (ino=%x), run fsck to fix.", |
| 616 | __func__, ino); |
| 617 | return err; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 618 | } |
| 619 | |
Chao Yu | 8c14bfa | 2015-08-07 17:58:43 +0800 | [diff] [blame] | 620 | int recover_orphan_inodes(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 621 | { |
Wanpeng Li | 3c64298 | 2015-02-26 07:57:21 +0800 | [diff] [blame] | 622 | block_t start_blk, orphan_blocks, i, j; |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 623 | unsigned int s_flags = sbi->sb->s_flags; |
| 624 | int err = 0; |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 625 | #ifdef CONFIG_QUOTA |
| 626 | int quota_enabled; |
| 627 | #endif |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 628 | |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 629 | if (!is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG)) |
Chao Yu | 8c14bfa | 2015-08-07 17:58:43 +0800 | [diff] [blame] | 630 | return 0; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 631 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 632 | if (s_flags & MS_RDONLY) { |
| 633 | f2fs_msg(sbi->sb, KERN_INFO, "orphan cleanup on readonly fs"); |
| 634 | sbi->sb->s_flags &= ~MS_RDONLY; |
| 635 | } |
| 636 | |
| 637 | #ifdef CONFIG_QUOTA |
| 638 | /* Needed for iput() to work correctly and not trash data */ |
| 639 | sbi->sb->s_flags |= MS_ACTIVE; |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 640 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 641 | /* Turn on quotas so that they are updated correctly */ |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 642 | quota_enabled = f2fs_enable_quota_files(sbi, s_flags & MS_RDONLY); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 643 | #endif |
| 644 | |
Wanpeng Li | 5514148 | 2015-02-26 07:57:20 +0800 | [diff] [blame] | 645 | start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi); |
Wanpeng Li | 3c64298 | 2015-02-26 07:57:21 +0800 | [diff] [blame] | 646 | orphan_blocks = __start_sum_addr(sbi) - 1 - __cp_payload(sbi); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 647 | |
Chao Yu | 26879fb | 2015-10-12 17:05:59 +0800 | [diff] [blame] | 648 | ra_meta_pages(sbi, start_blk, orphan_blocks, META_CP, true); |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 649 | |
Wanpeng Li | 3c64298 | 2015-02-26 07:57:21 +0800 | [diff] [blame] | 650 | for (i = 0; i < orphan_blocks; i++) { |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 651 | struct page *page = get_meta_page(sbi, start_blk + i); |
| 652 | struct f2fs_orphan_block *orphan_blk; |
| 653 | |
| 654 | orphan_blk = (struct f2fs_orphan_block *)page_address(page); |
| 655 | for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) { |
| 656 | nid_t ino = le32_to_cpu(orphan_blk->ino[j]); |
Chao Yu | 8c14bfa | 2015-08-07 17:58:43 +0800 | [diff] [blame] | 657 | err = recover_orphan_inode(sbi, ino); |
| 658 | if (err) { |
| 659 | f2fs_put_page(page, 1); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 660 | goto out; |
Chao Yu | 8c14bfa | 2015-08-07 17:58:43 +0800 | [diff] [blame] | 661 | } |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 662 | } |
| 663 | f2fs_put_page(page, 1); |
| 664 | } |
| 665 | /* clear Orphan Flag */ |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 666 | clear_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 667 | out: |
| 668 | #ifdef CONFIG_QUOTA |
| 669 | /* Turn quotas off */ |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 670 | if (quota_enabled) |
| 671 | f2fs_quota_off_umount(sbi->sb); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 672 | #endif |
| 673 | sbi->sb->s_flags = s_flags; /* Restore MS_RDONLY status */ |
| 674 | |
| 675 | return err; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 676 | } |
| 677 | |
| 678 | static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk) |
| 679 | { |
Gu Zheng | 502c6e0 | 2013-11-19 18:03:58 +0800 | [diff] [blame] | 680 | struct list_head *head; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 681 | struct f2fs_orphan_block *orphan_blk = NULL; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 682 | unsigned int nentries = 0; |
Chao Yu | bd936f8 | 2015-07-13 17:44:25 +0800 | [diff] [blame] | 683 | unsigned short index = 1; |
Jaegeuk Kim | 8c40294 | 2014-11-06 15:16:04 -0800 | [diff] [blame] | 684 | unsigned short orphan_blocks; |
Gu Zheng | 4531929 | 2014-01-10 18:09:02 +0800 | [diff] [blame] | 685 | struct page *page = NULL; |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 686 | struct ino_entry *orphan = NULL; |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 687 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 688 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 689 | orphan_blocks = GET_ORPHAN_BLOCKS(im->ino_num); |
Jaegeuk Kim | 8c40294 | 2014-11-06 15:16:04 -0800 | [diff] [blame] | 690 | |
Jaegeuk Kim | d6c67a4 | 2015-05-01 11:08:59 -0700 | [diff] [blame] | 691 | /* |
| 692 | * we don't need to do spin_lock(&im->ino_lock) here, since all the |
| 693 | * orphan inode operations are covered under f2fs_lock_op(). |
| 694 | * And, spin_lock should be avoided due to page operations below. |
| 695 | */ |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 696 | head = &im->ino_list; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 697 | |
| 698 | /* loop for each orphan inode entry and write them in Jornal block */ |
Gu Zheng | 502c6e0 | 2013-11-19 18:03:58 +0800 | [diff] [blame] | 699 | list_for_each_entry(orphan, head, list) { |
| 700 | if (!page) { |
Chao Yu | bd936f8 | 2015-07-13 17:44:25 +0800 | [diff] [blame] | 701 | page = grab_meta_page(sbi, start_blk++); |
Gu Zheng | 502c6e0 | 2013-11-19 18:03:58 +0800 | [diff] [blame] | 702 | orphan_blk = |
| 703 | (struct f2fs_orphan_block *)page_address(page); |
| 704 | memset(orphan_blk, 0, sizeof(*orphan_blk)); |
| 705 | } |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 706 | |
Gu Zheng | 3679556 | 2013-11-26 16:44:16 +0800 | [diff] [blame] | 707 | orphan_blk->ino[nentries++] = cpu_to_le32(orphan->ino); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 708 | |
Gu Zheng | 3679556 | 2013-11-26 16:44:16 +0800 | [diff] [blame] | 709 | if (nentries == F2FS_ORPHANS_PER_BLOCK) { |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 710 | /* |
| 711 | * an orphan block is full of 1020 entries, |
| 712 | * then we need to flush current orphan blocks |
| 713 | * and bring another one in memory |
| 714 | */ |
| 715 | orphan_blk->blk_addr = cpu_to_le16(index); |
| 716 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); |
| 717 | orphan_blk->entry_count = cpu_to_le32(nentries); |
| 718 | set_page_dirty(page); |
| 719 | f2fs_put_page(page, 1); |
| 720 | index++; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 721 | nentries = 0; |
| 722 | page = NULL; |
| 723 | } |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 724 | } |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 725 | |
Gu Zheng | 502c6e0 | 2013-11-19 18:03:58 +0800 | [diff] [blame] | 726 | if (page) { |
| 727 | orphan_blk->blk_addr = cpu_to_le16(index); |
| 728 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); |
| 729 | orphan_blk->entry_count = cpu_to_le32(nentries); |
| 730 | set_page_dirty(page); |
| 731 | f2fs_put_page(page, 1); |
| 732 | } |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 733 | } |
| 734 | |
Tiezhu Yang | fc0065a | 2016-09-30 08:24:53 +0800 | [diff] [blame] | 735 | static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr, |
| 736 | struct f2fs_checkpoint **cp_block, struct page **cp_page, |
| 737 | unsigned long long *version) |
| 738 | { |
| 739 | unsigned long blk_size = sbi->blocksize; |
| 740 | size_t crc_offset = 0; |
| 741 | __u32 crc = 0; |
| 742 | |
| 743 | *cp_page = get_meta_page(sbi, cp_addr); |
| 744 | *cp_block = (struct f2fs_checkpoint *)page_address(*cp_page); |
| 745 | |
| 746 | crc_offset = le32_to_cpu((*cp_block)->checksum_offset); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 747 | if (crc_offset > (blk_size - sizeof(__le32))) { |
Tiezhu Yang | fc0065a | 2016-09-30 08:24:53 +0800 | [diff] [blame] | 748 | f2fs_msg(sbi->sb, KERN_WARNING, |
| 749 | "invalid crc_offset: %zu", crc_offset); |
| 750 | return -EINVAL; |
| 751 | } |
| 752 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 753 | crc = cur_cp_crc(*cp_block); |
Tiezhu Yang | fc0065a | 2016-09-30 08:24:53 +0800 | [diff] [blame] | 754 | if (!f2fs_crc_valid(sbi, crc, *cp_block, crc_offset)) { |
| 755 | f2fs_msg(sbi->sb, KERN_WARNING, "invalid crc value"); |
| 756 | return -EINVAL; |
| 757 | } |
| 758 | |
| 759 | *version = cur_cp_version(*cp_block); |
| 760 | return 0; |
| 761 | } |
| 762 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 763 | static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, |
| 764 | block_t cp_addr, unsigned long long *version) |
| 765 | { |
Tiezhu Yang | fc0065a | 2016-09-30 08:24:53 +0800 | [diff] [blame] | 766 | struct page *cp_page_1 = NULL, *cp_page_2 = NULL; |
| 767 | struct f2fs_checkpoint *cp_block = NULL; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 768 | unsigned long long cur_version = 0, pre_version = 0; |
Tiezhu Yang | fc0065a | 2016-09-30 08:24:53 +0800 | [diff] [blame] | 769 | int err; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 770 | |
Tiezhu Yang | fc0065a | 2016-09-30 08:24:53 +0800 | [diff] [blame] | 771 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
| 772 | &cp_page_1, version); |
| 773 | if (err) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 774 | goto invalid_cp1; |
Tiezhu Yang | fc0065a | 2016-09-30 08:24:53 +0800 | [diff] [blame] | 775 | pre_version = *version; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 776 | |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 777 | cp_addr += le32_to_cpu(cp_block->cp_pack_total_block_count) - 1; |
Tiezhu Yang | fc0065a | 2016-09-30 08:24:53 +0800 | [diff] [blame] | 778 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
| 779 | &cp_page_2, version); |
| 780 | if (err) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 781 | goto invalid_cp2; |
Tiezhu Yang | fc0065a | 2016-09-30 08:24:53 +0800 | [diff] [blame] | 782 | cur_version = *version; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 783 | |
| 784 | if (cur_version == pre_version) { |
| 785 | *version = cur_version; |
| 786 | f2fs_put_page(cp_page_2, 1); |
| 787 | return cp_page_1; |
| 788 | } |
| 789 | invalid_cp2: |
| 790 | f2fs_put_page(cp_page_2, 1); |
| 791 | invalid_cp1: |
| 792 | f2fs_put_page(cp_page_1, 1); |
| 793 | return NULL; |
| 794 | } |
| 795 | |
| 796 | int get_valid_checkpoint(struct f2fs_sb_info *sbi) |
| 797 | { |
| 798 | struct f2fs_checkpoint *cp_block; |
| 799 | struct f2fs_super_block *fsb = sbi->raw_super; |
| 800 | struct page *cp1, *cp2, *cur_page; |
| 801 | unsigned long blk_size = sbi->blocksize; |
| 802 | unsigned long long cp1_version = 0, cp2_version = 0; |
| 803 | unsigned long long cp_start_blk_no; |
Wanpeng Li | 5514148 | 2015-02-26 07:57:20 +0800 | [diff] [blame] | 804 | unsigned int cp_blks = 1 + __cp_payload(sbi); |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 805 | block_t cp_blk_no; |
| 806 | int i; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 807 | |
Jaegeuk Kim | 2f17e34 | 2017-11-16 16:59:14 +0800 | [diff] [blame] | 808 | sbi->ckpt = f2fs_kzalloc(sbi, cp_blks * blk_size, GFP_KERNEL); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 809 | if (!sbi->ckpt) |
| 810 | return -ENOMEM; |
| 811 | /* |
| 812 | * Finding out valid cp block involves read both |
| 813 | * sets( cp pack1 and cp pack 2) |
| 814 | */ |
| 815 | cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr); |
| 816 | cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version); |
| 817 | |
| 818 | /* The second checkpoint pack should start at the next segment */ |
Jaegeuk Kim | f9a4e6d | 2013-11-28 12:44:05 +0900 | [diff] [blame] | 819 | cp_start_blk_no += ((unsigned long long)1) << |
| 820 | le32_to_cpu(fsb->log_blocks_per_seg); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 821 | cp2 = validate_checkpoint(sbi, cp_start_blk_no, &cp2_version); |
| 822 | |
| 823 | if (cp1 && cp2) { |
| 824 | if (ver_after(cp2_version, cp1_version)) |
| 825 | cur_page = cp2; |
| 826 | else |
| 827 | cur_page = cp1; |
| 828 | } else if (cp1) { |
| 829 | cur_page = cp1; |
| 830 | } else if (cp2) { |
| 831 | cur_page = cp2; |
| 832 | } else { |
| 833 | goto fail_no_cp; |
| 834 | } |
| 835 | |
| 836 | cp_block = (struct f2fs_checkpoint *)page_address(cur_page); |
| 837 | memcpy(sbi->ckpt, cp_block, blk_size); |
| 838 | |
Shawn Lin | 984ec63 | 2016-02-17 11:26:32 +0800 | [diff] [blame] | 839 | /* Sanity checking of checkpoint */ |
| 840 | if (sanity_check_ckpt(sbi)) |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 841 | goto free_fail_no_cp; |
Shawn Lin | 984ec63 | 2016-02-17 11:26:32 +0800 | [diff] [blame] | 842 | |
Jaegeuk Kim | 01e15b3 | 2016-11-24 12:45:15 -0800 | [diff] [blame] | 843 | if (cur_page == cp1) |
| 844 | sbi->cur_cp_pack = 1; |
| 845 | else |
| 846 | sbi->cur_cp_pack = 2; |
| 847 | |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 848 | if (cp_blks <= 1) |
| 849 | goto done; |
| 850 | |
| 851 | cp_blk_no = le32_to_cpu(fsb->cp_blkaddr); |
| 852 | if (cur_page == cp2) |
| 853 | cp_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg); |
| 854 | |
| 855 | for (i = 1; i < cp_blks; i++) { |
| 856 | void *sit_bitmap_ptr; |
| 857 | unsigned char *ckpt = (unsigned char *)sbi->ckpt; |
| 858 | |
| 859 | cur_page = get_meta_page(sbi, cp_blk_no + i); |
| 860 | sit_bitmap_ptr = page_address(cur_page); |
| 861 | memcpy(ckpt + i * blk_size, sit_bitmap_ptr, blk_size); |
| 862 | f2fs_put_page(cur_page, 1); |
| 863 | } |
| 864 | done: |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 865 | f2fs_put_page(cp1, 1); |
| 866 | f2fs_put_page(cp2, 1); |
| 867 | return 0; |
| 868 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 869 | free_fail_no_cp: |
| 870 | f2fs_put_page(cp1, 1); |
| 871 | f2fs_put_page(cp2, 1); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 872 | fail_no_cp: |
| 873 | kfree(sbi->ckpt); |
| 874 | return -EINVAL; |
| 875 | } |
| 876 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 877 | static void __add_dirty_inode(struct inode *inode, enum inode_type type) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 878 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 879 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 880 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 881 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 882 | if (is_inode_flag_set(inode, flag)) |
Chao Yu | 2710fd7 | 2015-12-15 13:30:45 +0800 | [diff] [blame] | 883 | return; |
Chao Yu | 2d7b822 | 2014-03-29 11:33:17 +0800 | [diff] [blame] | 884 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 885 | set_inode_flag(inode, flag); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 886 | if (!f2fs_is_volatile_file(inode)) |
| 887 | list_add_tail(&F2FS_I(inode)->dirty_list, |
| 888 | &sbi->inode_list[type]); |
Chao Yu | 33fbd51 | 2015-12-17 17:14:44 +0800 | [diff] [blame] | 889 | stat_inc_dirty_inode(sbi, type); |
Jaegeuk Kim | 5deb826 | 2013-06-05 17:42:45 +0900 | [diff] [blame] | 890 | } |
| 891 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 892 | static void __remove_dirty_inode(struct inode *inode, enum inode_type type) |
Chao Yu | 6ad7609 | 2015-12-15 13:31:40 +0800 | [diff] [blame] | 893 | { |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 894 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
Chao Yu | 6ad7609 | 2015-12-15 13:31:40 +0800 | [diff] [blame] | 895 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 896 | if (get_dirty_pages(inode) || !is_inode_flag_set(inode, flag)) |
Chao Yu | 6ad7609 | 2015-12-15 13:31:40 +0800 | [diff] [blame] | 897 | return; |
| 898 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 899 | list_del_init(&F2FS_I(inode)->dirty_list); |
| 900 | clear_inode_flag(inode, flag); |
Chao Yu | 33fbd51 | 2015-12-17 17:14:44 +0800 | [diff] [blame] | 901 | stat_dec_dirty_inode(F2FS_I_SB(inode), type); |
Chao Yu | 6ad7609 | 2015-12-15 13:31:40 +0800 | [diff] [blame] | 902 | } |
| 903 | |
Jaegeuk Kim | a7ffdbe | 2014-09-12 15:53:45 -0700 | [diff] [blame] | 904 | void update_dirty_page(struct inode *inode, struct page *page) |
Jaegeuk Kim | 5deb826 | 2013-06-05 17:42:45 +0900 | [diff] [blame] | 905 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 906 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 907 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
Jaegeuk Kim | 5deb826 | 2013-06-05 17:42:45 +0900 | [diff] [blame] | 908 | |
Chao Yu | 5ac9f36 | 2015-06-29 18:14:10 +0800 | [diff] [blame] | 909 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
| 910 | !S_ISLNK(inode->i_mode)) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 911 | return; |
Gu Zheng | 7bd5938 | 2013-10-22 14:52:26 +0800 | [diff] [blame] | 912 | |
Jaegeuk Kim | 1c4bf76 | 2016-06-01 20:55:51 -0700 | [diff] [blame] | 913 | spin_lock(&sbi->inode_lock[type]); |
| 914 | if (type != FILE_INODE || test_opt(sbi, DATA_FLUSH)) |
Jaegeuk Kim | 10aa97c | 2016-05-16 10:33:40 -0700 | [diff] [blame] | 915 | __add_dirty_inode(inode, type); |
Yunlei He | b951a4e | 2016-05-13 14:57:43 +0800 | [diff] [blame] | 916 | inode_inc_dirty_pages(inode); |
Jaegeuk Kim | 1c4bf76 | 2016-06-01 20:55:51 -0700 | [diff] [blame] | 917 | spin_unlock(&sbi->inode_lock[type]); |
| 918 | |
Jaegeuk Kim | a7ffdbe | 2014-09-12 15:53:45 -0700 | [diff] [blame] | 919 | SetPagePrivate(page); |
Jaegeuk Kim | 9e4ded3 | 2014-12-17 19:58:58 -0800 | [diff] [blame] | 920 | f2fs_trace_pid(page); |
Jaegeuk Kim | 5deb826 | 2013-06-05 17:42:45 +0900 | [diff] [blame] | 921 | } |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 922 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 923 | void remove_dirty_inode(struct inode *inode) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 924 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 925 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 926 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 927 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 928 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
| 929 | !S_ISLNK(inode->i_mode)) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 930 | return; |
| 931 | |
Jaegeuk Kim | 10aa97c | 2016-05-16 10:33:40 -0700 | [diff] [blame] | 932 | if (type == FILE_INODE && !test_opt(sbi, DATA_FLUSH)) |
| 933 | return; |
| 934 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 935 | spin_lock(&sbi->inode_lock[type]); |
| 936 | __remove_dirty_inode(inode, type); |
| 937 | spin_unlock(&sbi->inode_lock[type]); |
Jaegeuk Kim | 74d0b91 | 2013-05-15 16:40:02 +0900 | [diff] [blame] | 938 | } |
| 939 | |
Chao Yu | 6d5a149 | 2015-12-24 18:04:56 +0800 | [diff] [blame] | 940 | int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 941 | { |
Gu Zheng | ce3b7d8 | 2013-11-19 18:03:47 +0800 | [diff] [blame] | 942 | struct list_head *head; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 943 | struct inode *inode; |
Chao Yu | 2710fd7 | 2015-12-15 13:30:45 +0800 | [diff] [blame] | 944 | struct f2fs_inode_info *fi; |
Chao Yu | 4cf1853 | 2015-12-17 17:17:16 +0800 | [diff] [blame] | 945 | bool is_dir = (type == DIR_INODE); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 946 | unsigned long ino = 0; |
Chao Yu | 4cf1853 | 2015-12-17 17:17:16 +0800 | [diff] [blame] | 947 | |
| 948 | trace_f2fs_sync_dirty_inodes_enter(sbi->sb, is_dir, |
| 949 | get_pages(sbi, is_dir ? |
| 950 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 951 | retry: |
Jaegeuk Kim | af41d3e | 2014-10-17 14:14:16 -0700 | [diff] [blame] | 952 | if (unlikely(f2fs_cp_error(sbi))) |
Chao Yu | 6d5a149 | 2015-12-24 18:04:56 +0800 | [diff] [blame] | 953 | return -EIO; |
Jaegeuk Kim | af41d3e | 2014-10-17 14:14:16 -0700 | [diff] [blame] | 954 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 955 | spin_lock(&sbi->inode_lock[type]); |
Gu Zheng | ce3b7d8 | 2013-11-19 18:03:47 +0800 | [diff] [blame] | 956 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 957 | head = &sbi->inode_list[type]; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 958 | if (list_empty(head)) { |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 959 | spin_unlock(&sbi->inode_lock[type]); |
Chao Yu | 4cf1853 | 2015-12-17 17:17:16 +0800 | [diff] [blame] | 960 | trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir, |
| 961 | get_pages(sbi, is_dir ? |
| 962 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); |
Chao Yu | 6d5a149 | 2015-12-24 18:04:56 +0800 | [diff] [blame] | 963 | return 0; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 964 | } |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 965 | fi = list_first_entry(head, struct f2fs_inode_info, dirty_list); |
Chao Yu | 2710fd7 | 2015-12-15 13:30:45 +0800 | [diff] [blame] | 966 | inode = igrab(&fi->vfs_inode); |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 967 | spin_unlock(&sbi->inode_lock[type]); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 968 | if (inode) { |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 969 | unsigned long cur_ino = inode->i_ino; |
| 970 | |
| 971 | if (is_dir) |
| 972 | F2FS_I(inode)->cp_task = current; |
| 973 | |
Jaegeuk Kim | 87d6f89 | 2014-03-18 12:40:49 +0900 | [diff] [blame] | 974 | filemap_fdatawrite(inode->i_mapping); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 975 | |
| 976 | if (is_dir) |
| 977 | F2FS_I(inode)->cp_task = NULL; |
| 978 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 979 | iput(inode); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 980 | /* We need to give cpu to another writers. */ |
| 981 | if (ino == cur_ino) { |
| 982 | congestion_wait(BLK_RW_ASYNC, HZ/50); |
| 983 | cond_resched(); |
| 984 | } else { |
| 985 | ino = cur_ino; |
| 986 | } |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 987 | } else { |
| 988 | /* |
| 989 | * We should submit bio, since it exists several |
| 990 | * wribacking dentry pages in the freeing inode. |
| 991 | */ |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 992 | f2fs_submit_merged_write(sbi, DATA); |
Sebastian Andrzej Siewior | 7ecebe5 | 2015-02-27 13:13:14 +0100 | [diff] [blame] | 993 | cond_resched(); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 994 | } |
| 995 | goto retry; |
| 996 | } |
| 997 | |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 998 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi) |
| 999 | { |
| 1000 | struct list_head *head = &sbi->inode_list[DIRTY_META]; |
| 1001 | struct inode *inode; |
| 1002 | struct f2fs_inode_info *fi; |
| 1003 | s64 total = get_pages(sbi, F2FS_DIRTY_IMETA); |
| 1004 | |
| 1005 | while (total--) { |
| 1006 | if (unlikely(f2fs_cp_error(sbi))) |
| 1007 | return -EIO; |
| 1008 | |
| 1009 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
| 1010 | if (list_empty(head)) { |
| 1011 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
| 1012 | return 0; |
| 1013 | } |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1014 | fi = list_first_entry(head, struct f2fs_inode_info, |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 1015 | gdirty_list); |
| 1016 | inode = igrab(&fi->vfs_inode); |
| 1017 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
| 1018 | if (inode) { |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1019 | sync_inode_metadata(inode, 0); |
| 1020 | |
| 1021 | /* it's on eviction */ |
| 1022 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) |
| 1023 | update_inode_page(inode); |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 1024 | iput(inode); |
| 1025 | } |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 1026 | } |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 1027 | return 0; |
| 1028 | } |
| 1029 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1030 | static void __prepare_cp_block(struct f2fs_sb_info *sbi) |
| 1031 | { |
| 1032 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
| 1033 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
| 1034 | nid_t last_nid = nm_i->next_scan_nid; |
| 1035 | |
| 1036 | next_free_nid(sbi, &last_nid); |
| 1037 | ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi)); |
| 1038 | ckpt->valid_node_count = cpu_to_le32(valid_node_count(sbi)); |
| 1039 | ckpt->valid_inode_count = cpu_to_le32(valid_inode_count(sbi)); |
| 1040 | ckpt->next_free_nid = cpu_to_le32(last_nid); |
| 1041 | } |
| 1042 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 1043 | /* |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1044 | * Freeze all the FS-operations for checkpoint. |
| 1045 | */ |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1046 | static int block_operations(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1047 | { |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1048 | struct writeback_control wbc = { |
| 1049 | .sync_mode = WB_SYNC_ALL, |
| 1050 | .nr_to_write = LONG_MAX, |
| 1051 | .for_reclaim = 0, |
| 1052 | }; |
Jaegeuk Kim | c718379b | 2013-04-24 13:19:56 +0900 | [diff] [blame] | 1053 | struct blk_plug plug; |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1054 | int err = 0; |
Jaegeuk Kim | c718379b | 2013-04-24 13:19:56 +0900 | [diff] [blame] | 1055 | |
| 1056 | blk_start_plug(&plug); |
| 1057 | |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1058 | retry_flush_dents: |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1059 | f2fs_lock_all(sbi); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1060 | /* write all the dirty dentry pages */ |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1061 | if (get_pages(sbi, F2FS_DIRTY_DENTS)) { |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1062 | f2fs_unlock_all(sbi); |
Chao Yu | 6d5a149 | 2015-12-24 18:04:56 +0800 | [diff] [blame] | 1063 | err = sync_dirty_inodes(sbi, DIR_INODE); |
| 1064 | if (err) |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1065 | goto out; |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1066 | cond_resched(); |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 1067 | goto retry_flush_dents; |
| 1068 | } |
| 1069 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1070 | /* |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 1071 | * POR: we should ensure that there are no dirty node pages |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1072 | * until finishing nat/sit flush. inode->i_blocks can be updated. |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1073 | */ |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1074 | down_write(&sbi->node_change); |
| 1075 | |
| 1076 | if (get_pages(sbi, F2FS_DIRTY_IMETA)) { |
| 1077 | up_write(&sbi->node_change); |
| 1078 | f2fs_unlock_all(sbi); |
| 1079 | err = f2fs_sync_inode_meta(sbi); |
| 1080 | if (err) |
| 1081 | goto out; |
| 1082 | cond_resched(); |
| 1083 | goto retry_flush_dents; |
| 1084 | } |
| 1085 | |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1086 | retry_flush_nodes: |
Chao Yu | b3582c6 | 2014-07-03 18:58:39 +0800 | [diff] [blame] | 1087 | down_write(&sbi->node_write); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1088 | |
| 1089 | if (get_pages(sbi, F2FS_DIRTY_NODES)) { |
Chao Yu | b3582c6 | 2014-07-03 18:58:39 +0800 | [diff] [blame] | 1090 | up_write(&sbi->node_write); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1091 | err = sync_node_pages(sbi, &wbc, false, FS_CP_NODE_IO); |
Chao Yu | 6d5a149 | 2015-12-24 18:04:56 +0800 | [diff] [blame] | 1092 | if (err) { |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1093 | up_write(&sbi->node_change); |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1094 | f2fs_unlock_all(sbi); |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1095 | goto out; |
| 1096 | } |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1097 | cond_resched(); |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1098 | goto retry_flush_nodes; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1099 | } |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1100 | |
| 1101 | /* |
| 1102 | * sbi->node_change is used only for AIO write_begin path which produces |
| 1103 | * dirty node blocks and some checkpoint values by block allocation. |
| 1104 | */ |
| 1105 | __prepare_cp_block(sbi); |
| 1106 | up_write(&sbi->node_change); |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1107 | out: |
Jaegeuk Kim | c718379b | 2013-04-24 13:19:56 +0900 | [diff] [blame] | 1108 | blk_finish_plug(&plug); |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1109 | return err; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1110 | } |
| 1111 | |
| 1112 | static void unblock_operations(struct f2fs_sb_info *sbi) |
| 1113 | { |
Chao Yu | b3582c6 | 2014-07-03 18:58:39 +0800 | [diff] [blame] | 1114 | up_write(&sbi->node_write); |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1115 | f2fs_unlock_all(sbi); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1116 | } |
| 1117 | |
Changman Lee | fb51b5e | 2013-11-07 12:48:25 +0900 | [diff] [blame] | 1118 | static void wait_on_all_pages_writeback(struct f2fs_sb_info *sbi) |
| 1119 | { |
| 1120 | DEFINE_WAIT(wait); |
| 1121 | |
| 1122 | for (;;) { |
| 1123 | prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE); |
| 1124 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1125 | if (!get_pages(sbi, F2FS_WB_CP_DATA)) |
Changman Lee | fb51b5e | 2013-11-07 12:48:25 +0900 | [diff] [blame] | 1126 | break; |
| 1127 | |
Yunlei He | 0ff2164 | 2016-02-23 12:07:56 +0800 | [diff] [blame] | 1128 | io_schedule_timeout(5*HZ); |
Changman Lee | fb51b5e | 2013-11-07 12:48:25 +0900 | [diff] [blame] | 1129 | } |
| 1130 | finish_wait(&sbi->cp_wait, &wait); |
| 1131 | } |
| 1132 | |
Jaegeuk Kim | e4c5d84 | 2016-09-30 17:37:43 -0700 | [diff] [blame] | 1133 | static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
| 1134 | { |
| 1135 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num; |
| 1136 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1137 | unsigned long flags; |
Jaegeuk Kim | e4c5d84 | 2016-09-30 17:37:43 -0700 | [diff] [blame] | 1138 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1139 | spin_lock_irqsave(&sbi->cp_lock, flags); |
Jaegeuk Kim | e4c5d84 | 2016-09-30 17:37:43 -0700 | [diff] [blame] | 1140 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1141 | if ((cpc->reason & CP_UMOUNT) && |
| 1142 | le32_to_cpu(ckpt->cp_pack_total_block_count) > |
| 1143 | sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) |
| 1144 | disable_nat_bits(sbi, false); |
| 1145 | |
| 1146 | if (cpc->reason & CP_TRIMMED) |
| 1147 | __set_ckpt_flags(ckpt, CP_TRIMMED_FLAG); |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 1148 | else |
| 1149 | __clear_ckpt_flags(ckpt, CP_TRIMMED_FLAG); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1150 | |
| 1151 | if (cpc->reason & CP_UMOUNT) |
Jaegeuk Kim | e4c5d84 | 2016-09-30 17:37:43 -0700 | [diff] [blame] | 1152 | __set_ckpt_flags(ckpt, CP_UMOUNT_FLAG); |
| 1153 | else |
| 1154 | __clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG); |
| 1155 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1156 | if (cpc->reason & CP_FASTBOOT) |
Jaegeuk Kim | e4c5d84 | 2016-09-30 17:37:43 -0700 | [diff] [blame] | 1157 | __set_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); |
| 1158 | else |
| 1159 | __clear_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); |
| 1160 | |
| 1161 | if (orphan_num) |
| 1162 | __set_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); |
| 1163 | else |
| 1164 | __clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); |
| 1165 | |
| 1166 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) |
| 1167 | __set_ckpt_flags(ckpt, CP_FSCK_FLAG); |
| 1168 | |
| 1169 | /* set this flag to activate crc|cp_ver for recovery */ |
| 1170 | __set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG); |
Jaegeuk Kim | 2f17e34 | 2017-11-16 16:59:14 +0800 | [diff] [blame] | 1171 | __clear_ckpt_flags(ckpt, CP_NOCRC_RECOVERY_FLAG); |
Jaegeuk Kim | e4c5d84 | 2016-09-30 17:37:43 -0700 | [diff] [blame] | 1172 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1173 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
Jaegeuk Kim | e4c5d84 | 2016-09-30 17:37:43 -0700 | [diff] [blame] | 1174 | } |
| 1175 | |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 1176 | static void commit_checkpoint(struct f2fs_sb_info *sbi, |
| 1177 | void *src, block_t blk_addr) |
| 1178 | { |
| 1179 | struct writeback_control wbc = { |
| 1180 | .for_reclaim = 0, |
| 1181 | }; |
| 1182 | |
| 1183 | /* |
| 1184 | * pagevec_lookup_tag and lock_page again will take |
| 1185 | * some extra time. Therefore, update_meta_pages and |
| 1186 | * sync_meta_pages are combined in this function. |
| 1187 | */ |
| 1188 | struct page *page = grab_meta_page(sbi, blk_addr); |
| 1189 | int err; |
| 1190 | |
| 1191 | memcpy(page_address(page), src, PAGE_SIZE); |
| 1192 | set_page_dirty(page); |
| 1193 | |
| 1194 | f2fs_wait_on_page_writeback(page, META, true); |
| 1195 | f2fs_bug_on(sbi, PageWriteback(page)); |
| 1196 | if (unlikely(!clear_page_dirty_for_io(page))) |
| 1197 | f2fs_bug_on(sbi, 1); |
| 1198 | |
| 1199 | /* writeout cp pack 2 page */ |
| 1200 | err = __f2fs_write_meta_page(page, &wbc, FS_CP_META_IO); |
| 1201 | f2fs_bug_on(sbi, err); |
| 1202 | |
| 1203 | f2fs_put_page(page, 0); |
| 1204 | |
| 1205 | /* submit checkpoint (with barrier if NOBARRIER is not set) */ |
| 1206 | f2fs_submit_merged_write(sbi, META_FLUSH); |
| 1207 | } |
| 1208 | |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1209 | static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1210 | { |
| 1211 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
Huang Ying | 7704182 | 2014-09-12 20:19:48 +0800 | [diff] [blame] | 1212 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1213 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num, flags; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1214 | block_t start_blk; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1215 | unsigned int data_sum_blocks, orphan_blocks; |
Jaegeuk Kim | 7e586fa | 2013-06-19 20:47:19 +0900 | [diff] [blame] | 1216 | __u32 crc32 = 0; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1217 | int i; |
Wanpeng Li | 5514148 | 2015-02-26 07:57:20 +0800 | [diff] [blame] | 1218 | int cp_payload_blks = __cp_payload(sbi); |
Shuoran Liu | 8f1dbbb | 2016-01-27 09:57:30 +0800 | [diff] [blame] | 1219 | struct super_block *sb = sbi->sb; |
| 1220 | struct curseg_info *seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); |
| 1221 | u64 kbytes_written; |
Jaegeuk Kim | 8ae26d1 | 2017-09-23 17:02:18 +0800 | [diff] [blame] | 1222 | int err; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1223 | |
| 1224 | /* Flush all the NAT/SIT pages */ |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1225 | while (get_pages(sbi, F2FS_DIRTY_META)) { |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1226 | sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1227 | if (unlikely(f2fs_cp_error(sbi))) |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1228 | return -EIO; |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1229 | } |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1230 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1231 | /* |
| 1232 | * modify checkpoint |
| 1233 | * version number is already updated |
| 1234 | */ |
| 1235 | ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi)); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1236 | ckpt->free_segment_count = cpu_to_le32(free_segments(sbi)); |
Chao Yu | b5b8220 | 2014-08-22 16:17:38 +0800 | [diff] [blame] | 1237 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1238 | ckpt->cur_node_segno[i] = |
| 1239 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE)); |
| 1240 | ckpt->cur_node_blkoff[i] = |
| 1241 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_NODE)); |
| 1242 | ckpt->alloc_type[i + CURSEG_HOT_NODE] = |
| 1243 | curseg_alloc_type(sbi, i + CURSEG_HOT_NODE); |
| 1244 | } |
Chao Yu | b5b8220 | 2014-08-22 16:17:38 +0800 | [diff] [blame] | 1245 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1246 | ckpt->cur_data_segno[i] = |
| 1247 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA)); |
| 1248 | ckpt->cur_data_blkoff[i] = |
| 1249 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_DATA)); |
| 1250 | ckpt->alloc_type[i + CURSEG_HOT_DATA] = |
| 1251 | curseg_alloc_type(sbi, i + CURSEG_HOT_DATA); |
| 1252 | } |
| 1253 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1254 | /* 2 cp + n data seg summary + orphan inode blocks */ |
Chao Yu | 3fa06d7 | 2014-12-09 14:21:46 +0800 | [diff] [blame] | 1255 | data_sum_blocks = npages_for_summary_flush(sbi, false); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1256 | spin_lock_irqsave(&sbi->cp_lock, flags); |
Chao Yu | b5b8220 | 2014-08-22 16:17:38 +0800 | [diff] [blame] | 1257 | if (data_sum_blocks < NR_CURSEG_DATA_TYPE) |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 1258 | __set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1259 | else |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 1260 | __clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1261 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1262 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 1263 | orphan_blocks = GET_ORPHAN_BLOCKS(orphan_num); |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1264 | ckpt->cp_pack_start_sum = cpu_to_le32(1 + cp_payload_blks + |
| 1265 | orphan_blocks); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1266 | |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 1267 | if (__remain_node_summaries(cpc->reason)) |
Chao Yu | b5b8220 | 2014-08-22 16:17:38 +0800 | [diff] [blame] | 1268 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS+ |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1269 | cp_payload_blks + data_sum_blocks + |
| 1270 | orphan_blocks + NR_CURSEG_NODE_TYPE); |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 1271 | else |
Chao Yu | b5b8220 | 2014-08-22 16:17:38 +0800 | [diff] [blame] | 1272 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1273 | cp_payload_blks + data_sum_blocks + |
| 1274 | orphan_blocks); |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 1275 | |
Jaegeuk Kim | e4c5d84 | 2016-09-30 17:37:43 -0700 | [diff] [blame] | 1276 | /* update ckpt flag for checkpoint */ |
| 1277 | update_ckpt_flags(sbi, cpc); |
Jaegeuk Kim | a468f0e | 2016-09-19 17:55:10 -0700 | [diff] [blame] | 1278 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1279 | /* update SIT/NAT bitmap */ |
| 1280 | get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP)); |
| 1281 | get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP)); |
| 1282 | |
Keith Mok | 43b6573 | 2016-03-02 12:04:24 -0800 | [diff] [blame] | 1283 | crc32 = f2fs_crc32(sbi, ckpt, le32_to_cpu(ckpt->checksum_offset)); |
Jaegeuk Kim | 7e586fa | 2013-06-19 20:47:19 +0900 | [diff] [blame] | 1284 | *((__le32 *)((unsigned char *)ckpt + |
| 1285 | le32_to_cpu(ckpt->checksum_offset))) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1286 | = cpu_to_le32(crc32); |
| 1287 | |
Jaegeuk Kim | 01e15b3 | 2016-11-24 12:45:15 -0800 | [diff] [blame] | 1288 | start_blk = __start_cp_next_addr(sbi); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1289 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1290 | /* write nat bits */ |
| 1291 | if (enabled_nat_bits(sbi, cpc)) { |
| 1292 | __u64 cp_ver = cur_cp_version(ckpt); |
| 1293 | block_t blk; |
| 1294 | |
| 1295 | cp_ver |= ((__u64)crc32 << 32); |
| 1296 | *(__le64 *)nm_i->nat_bits = cpu_to_le64(cp_ver); |
| 1297 | |
| 1298 | blk = start_blk + sbi->blocks_per_seg - nm_i->nat_bits_blocks; |
| 1299 | for (i = 0; i < nm_i->nat_bits_blocks; i++) |
| 1300 | update_meta_page(sbi, nm_i->nat_bits + |
| 1301 | (i << F2FS_BLKSIZE_BITS), blk + i); |
| 1302 | |
| 1303 | /* Flush all the NAT BITS pages */ |
| 1304 | while (get_pages(sbi, F2FS_DIRTY_META)) { |
| 1305 | sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
| 1306 | if (unlikely(f2fs_cp_error(sbi))) |
| 1307 | return -EIO; |
| 1308 | } |
| 1309 | } |
| 1310 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1311 | /* write out checkpoint buffer at block 0 */ |
Chao Yu | 381722d | 2015-05-19 17:40:04 +0800 | [diff] [blame] | 1312 | update_meta_page(sbi, ckpt, start_blk++); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1313 | |
Chao Yu | 381722d | 2015-05-19 17:40:04 +0800 | [diff] [blame] | 1314 | for (i = 1; i < 1 + cp_payload_blks; i++) |
| 1315 | update_meta_page(sbi, (char *)ckpt + i * F2FS_BLKSIZE, |
| 1316 | start_blk++); |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1317 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 1318 | if (orphan_num) { |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1319 | write_orphan_inodes(sbi, start_blk); |
| 1320 | start_blk += orphan_blocks; |
| 1321 | } |
| 1322 | |
| 1323 | write_data_summaries(sbi, start_blk); |
| 1324 | start_blk += data_sum_blocks; |
Shuoran Liu | 8f1dbbb | 2016-01-27 09:57:30 +0800 | [diff] [blame] | 1325 | |
| 1326 | /* Record write statistics in the hot node summary */ |
| 1327 | kbytes_written = sbi->kbytes_written; |
| 1328 | if (sb->s_bdev->bd_part) |
| 1329 | kbytes_written += BD_PART_WRITTEN(sbi); |
| 1330 | |
Chao Yu | b7ad751 | 2016-02-19 18:08:46 +0800 | [diff] [blame] | 1331 | seg_i->journal->info.kbytes_written = cpu_to_le64(kbytes_written); |
Shuoran Liu | 8f1dbbb | 2016-01-27 09:57:30 +0800 | [diff] [blame] | 1332 | |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 1333 | if (__remain_node_summaries(cpc->reason)) { |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1334 | write_node_summaries(sbi, start_blk); |
| 1335 | start_blk += NR_CURSEG_NODE_TYPE; |
| 1336 | } |
| 1337 | |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 1338 | /* update user_block_counts */ |
| 1339 | sbi->last_valid_block_count = sbi->total_valid_block_count; |
| 1340 | percpu_counter_set(&sbi->alloc_valid_block_count, 0); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1341 | |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 1342 | /* Here, we have one bio having CP pack except cp pack 2 page */ |
| 1343 | sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
| 1344 | |
| 1345 | /* wait for previous submitted meta pages writeback */ |
Changman Lee | fb51b5e | 2013-11-07 12:48:25 +0900 | [diff] [blame] | 1346 | wait_on_all_pages_writeback(sbi); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1347 | |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1348 | if (unlikely(f2fs_cp_error(sbi))) |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1349 | return -EIO; |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1350 | |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 1351 | /* flush all device cache */ |
| 1352 | err = f2fs_flush_device_cache(sbi); |
| 1353 | if (err) |
| 1354 | return err; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1355 | |
Jaegeuk Kim | d919765 | 2018-01-05 10:44:52 -0800 | [diff] [blame] | 1356 | /* barrier and flush checkpoint cp pack 2 page if it can */ |
| 1357 | commit_checkpoint(sbi, ckpt, start_blk); |
Jaegeuk Kim | 6a8f8ca | 2014-10-29 14:37:22 -0700 | [diff] [blame] | 1358 | wait_on_all_pages_writeback(sbi); |
| 1359 | |
Jaegeuk Kim | 74ef924 | 2016-05-02 22:09:56 -0700 | [diff] [blame] | 1360 | release_ino_entry(sbi, false); |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1361 | |
| 1362 | if (unlikely(f2fs_cp_error(sbi))) |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1363 | return -EIO; |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1364 | |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1365 | clear_sbi_flag(sbi, SBI_IS_DIRTY); |
Jaegeuk Kim | bbf156f | 2016-08-29 18:23:45 -0700 | [diff] [blame] | 1366 | clear_sbi_flag(sbi, SBI_NEED_CP); |
Jaegeuk Kim | 01e15b3 | 2016-11-24 12:45:15 -0800 | [diff] [blame] | 1367 | __set_cp_next_pack(sbi); |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1368 | |
Chao Yu | c2a080a | 2016-08-31 10:43:19 +0800 | [diff] [blame] | 1369 | /* |
| 1370 | * redirty superblock if metadata like node page or inode cache is |
| 1371 | * updated during writing checkpoint. |
| 1372 | */ |
| 1373 | if (get_pages(sbi, F2FS_DIRTY_NODES) || |
| 1374 | get_pages(sbi, F2FS_DIRTY_IMETA)) |
| 1375 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
| 1376 | |
| 1377 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_DENTS)); |
| 1378 | |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1379 | return 0; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1380 | } |
| 1381 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 1382 | /* |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 1383 | * We guarantee that this checkpoint procedure will not fail. |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1384 | */ |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1385 | int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1386 | { |
| 1387 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
| 1388 | unsigned long long ckpt_ver; |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1389 | int err = 0; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1390 | |
Jaegeuk Kim | 4372752 | 2013-02-04 15:11:17 +0900 | [diff] [blame] | 1391 | mutex_lock(&sbi->cp_mutex); |
Jaegeuk Kim | 8501017 | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1392 | |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1393 | if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) && |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1394 | ((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) || |
| 1395 | ((cpc->reason & CP_DISCARD) && !sbi->discard_blks))) |
Jaegeuk Kim | 8501017 | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1396 | goto out; |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1397 | if (unlikely(f2fs_cp_error(sbi))) { |
| 1398 | err = -EIO; |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1399 | goto out; |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1400 | } |
| 1401 | if (f2fs_readonly(sbi->sb)) { |
| 1402 | err = -EROFS; |
Jaegeuk Kim | 11504a8 | 2015-01-23 18:43:45 -0800 | [diff] [blame] | 1403 | goto out; |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1404 | } |
Wanpeng Li | 2bda542 | 2015-02-27 15:56:16 +0800 | [diff] [blame] | 1405 | |
| 1406 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); |
| 1407 | |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1408 | err = block_operations(sbi); |
| 1409 | if (err) |
Jaegeuk Kim | cf779ca | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1410 | goto out; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1411 | |
Jaegeuk Kim | 75ab4cb | 2014-09-20 21:57:51 -0700 | [diff] [blame] | 1412 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish block_ops"); |
Namjae Jeon | 2af4bd6 | 2013-04-23 18:26:54 +0900 | [diff] [blame] | 1413 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1414 | f2fs_flush_merged_writes(sbi); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1415 | |
Yunlei He | 58cce38 | 2016-08-18 21:01:19 +0800 | [diff] [blame] | 1416 | /* this is the case of multiple fstrims without any changes */ |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1417 | if (cpc->reason & CP_DISCARD) { |
| 1418 | if (!exist_trim_candidates(sbi, cpc)) { |
| 1419 | unblock_operations(sbi); |
| 1420 | goto out; |
| 1421 | } |
| 1422 | |
| 1423 | if (NM_I(sbi)->dirty_nat_cnt == 0 && |
| 1424 | SIT_I(sbi)->dirty_sentries == 0 && |
| 1425 | prefree_segments(sbi) == 0) { |
| 1426 | flush_sit_entries(sbi, cpc); |
| 1427 | clear_prefree_segments(sbi, cpc); |
| 1428 | unblock_operations(sbi); |
| 1429 | goto out; |
| 1430 | } |
Yunlei He | 58cce38 | 2016-08-18 21:01:19 +0800 | [diff] [blame] | 1431 | } |
| 1432 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1433 | /* |
| 1434 | * update checkpoint pack index |
| 1435 | * Increase the version number so that |
| 1436 | * SIT entries and seg summaries are written at correct place |
| 1437 | */ |
Jaegeuk Kim | d71b556 | 2013-08-09 15:03:21 +0900 | [diff] [blame] | 1438 | ckpt_ver = cur_cp_version(ckpt); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1439 | ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver); |
| 1440 | |
| 1441 | /* write cached NAT/SIT entries to NAT/SIT area */ |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1442 | flush_nat_entries(sbi, cpc); |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 1443 | flush_sit_entries(sbi, cpc); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1444 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1445 | /* unlock all the fs_lock[] in do_checkpoint() */ |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1446 | err = do_checkpoint(sbi, cpc); |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1447 | if (err) |
| 1448 | release_discard_addrs(sbi); |
| 1449 | else |
| 1450 | clear_prefree_segments(sbi, cpc); |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 1451 | |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1452 | unblock_operations(sbi); |
Changman Lee | 942e0be | 2014-02-13 15:12:29 +0900 | [diff] [blame] | 1453 | stat_inc_cp_count(sbi->stat_info); |
Jaegeuk Kim | 1002755 | 2015-04-09 17:03:53 -0700 | [diff] [blame] | 1454 | |
Hyojun Kim | 63da420 | 2017-10-06 17:10:08 -0700 | [diff] [blame] | 1455 | if (cpc->reason & CP_RECOVERY) |
Jaegeuk Kim | 1002755 | 2015-04-09 17:03:53 -0700 | [diff] [blame] | 1456 | f2fs_msg(sbi->sb, KERN_NOTICE, |
| 1457 | "checkpoint: version = %llx", ckpt_ver); |
Jaegeuk Kim | 60b99b4 | 2015-10-05 14:49:57 -0700 | [diff] [blame] | 1458 | |
| 1459 | /* do checkpoint periodically */ |
Jaegeuk Kim | 6beceb5 | 2016-01-08 15:51:50 -0800 | [diff] [blame] | 1460 | f2fs_update_time(sbi, CP_TIME); |
Jaegeuk Kim | 55d1cdb | 2015-12-15 16:07:14 -0800 | [diff] [blame] | 1461 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint"); |
Jaegeuk Kim | 8501017 | 2014-08-11 18:37:46 -0700 | [diff] [blame] | 1462 | out: |
| 1463 | mutex_unlock(&sbi->cp_mutex); |
Chao Yu | c34f42e | 2015-12-23 17:50:30 +0800 | [diff] [blame] | 1464 | return err; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1465 | } |
| 1466 | |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 1467 | void init_ino_entry_info(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1468 | { |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 1469 | int i; |
| 1470 | |
| 1471 | for (i = 0; i < MAX_INO_ENTRY; i++) { |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 1472 | struct inode_management *im = &sbi->im[i]; |
| 1473 | |
| 1474 | INIT_RADIX_TREE(&im->ino_root, GFP_ATOMIC); |
| 1475 | spin_lock_init(&im->ino_lock); |
| 1476 | INIT_LIST_HEAD(&im->ino_list); |
| 1477 | im->ino_num = 0; |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 1478 | } |
| 1479 | |
Chao Yu | b5b8220 | 2014-08-22 16:17:38 +0800 | [diff] [blame] | 1480 | sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS - |
Wanpeng Li | 14b4281 | 2015-02-27 17:38:13 +0800 | [diff] [blame] | 1481 | NR_CURSEG_TYPE - __cp_payload(sbi)) * |
| 1482 | F2FS_ORPHANS_PER_BLOCK; |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1483 | } |
| 1484 | |
Namjae Jeon | 6e6093a | 2013-01-17 00:08:30 +0900 | [diff] [blame] | 1485 | int __init create_checkpoint_caches(void) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1486 | { |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 1487 | ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry", |
| 1488 | sizeof(struct ino_entry)); |
| 1489 | if (!ino_entry_slab) |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1490 | return -ENOMEM; |
Chao Yu | 0629207 | 2014-12-29 15:56:18 +0800 | [diff] [blame] | 1491 | inode_entry_slab = f2fs_kmem_cache_create("f2fs_inode_entry", |
| 1492 | sizeof(struct inode_entry)); |
Jaegeuk Kim | 6bacf52 | 2013-12-06 15:00:58 +0900 | [diff] [blame] | 1493 | if (!inode_entry_slab) { |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 1494 | kmem_cache_destroy(ino_entry_slab); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1495 | return -ENOMEM; |
| 1496 | } |
| 1497 | return 0; |
| 1498 | } |
| 1499 | |
| 1500 | void destroy_checkpoint_caches(void) |
| 1501 | { |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 1502 | kmem_cache_destroy(ino_entry_slab); |
Jaegeuk Kim | 127e670 | 2012-11-02 17:08:18 +0900 | [diff] [blame] | 1503 | kmem_cache_destroy(inode_entry_slab); |
| 1504 | } |