Commit | Line | Data |
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7c1a000d | 1 | // SPDX-License-Identifier: GPL-2.0 |
0a8165d7 | 2 | /* |
127e670a JK |
3 | * fs/f2fs/checkpoint.c |
4 | * | |
5 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
6 | * http://www.samsung.com/ | |
127e670a JK |
7 | */ |
8 | #include <linux/fs.h> | |
9 | #include <linux/bio.h> | |
10 | #include <linux/mpage.h> | |
11 | #include <linux/writeback.h> | |
12 | #include <linux/blkdev.h> | |
13 | #include <linux/f2fs_fs.h> | |
14 | #include <linux/pagevec.h> | |
15 | #include <linux/swap.h> | |
261eeb9c | 16 | #include <linux/kthread.h> |
127e670a JK |
17 | |
18 | #include "f2fs.h" | |
19 | #include "node.h" | |
20 | #include "segment.h" | |
52118743 | 21 | #include "iostat.h" |
2af4bd6c | 22 | #include <trace/events/f2fs.h> |
127e670a | 23 | |
261eeb9c DJ |
24 | #define DEFAULT_CHECKPOINT_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3)) |
25 | ||
6451e041 | 26 | static struct kmem_cache *ino_entry_slab; |
4d57b86d | 27 | struct kmem_cache *f2fs_inode_entry_slab; |
127e670a | 28 | |
38f91ca8 JK |
29 | void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io) |
30 | { | |
d494500a | 31 | f2fs_build_fault_attr(sbi, 0, 0); |
aaec2b1d | 32 | set_ckpt_flags(sbi, CP_ERROR_FLAG); |
38f91ca8 | 33 | if (!end_io) |
b9109b0e | 34 | f2fs_flush_merged_writes(sbi); |
38f91ca8 JK |
35 | } |
36 | ||
0a8165d7 | 37 | /* |
127e670a JK |
38 | * We guarantee no failure on the returned page. |
39 | */ | |
4d57b86d | 40 | struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
127e670a | 41 | { |
9df27d98 | 42 | struct address_space *mapping = META_MAPPING(sbi); |
beb78181 | 43 | struct page *page; |
127e670a | 44 | repeat: |
300e129c | 45 | page = f2fs_grab_cache_page(mapping, index, false); |
127e670a JK |
46 | if (!page) { |
47 | cond_resched(); | |
48 | goto repeat; | |
49 | } | |
bae0ee7a | 50 | f2fs_wait_on_page_writeback(page, META, true, true); |
237c0790 JK |
51 | if (!PageUptodate(page)) |
52 | SetPageUptodate(page); | |
127e670a JK |
53 | return page; |
54 | } | |
55 | ||
2b947003 CY |
56 | static struct page *__get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index, |
57 | bool is_meta) | |
127e670a | 58 | { |
9df27d98 | 59 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a | 60 | struct page *page; |
cf04e8eb | 61 | struct f2fs_io_info fio = { |
05ca3632 | 62 | .sbi = sbi, |
cf04e8eb | 63 | .type = META, |
04d328de | 64 | .op = REQ_OP_READ, |
70fd7614 | 65 | .op_flags = REQ_META | REQ_PRIO, |
7a9d7548 CY |
66 | .old_blkaddr = index, |
67 | .new_blkaddr = index, | |
4375a336 | 68 | .encrypted_page = NULL, |
6dc3a126 | 69 | .is_por = !is_meta, |
cf04e8eb | 70 | }; |
7735730d | 71 | int err; |
2b947003 CY |
72 | |
73 | if (unlikely(!is_meta)) | |
04d328de | 74 | fio.op_flags &= ~REQ_META; |
127e670a | 75 | repeat: |
300e129c | 76 | page = f2fs_grab_cache_page(mapping, index, false); |
127e670a JK |
77 | if (!page) { |
78 | cond_resched(); | |
79 | goto repeat; | |
80 | } | |
393ff91f JK |
81 | if (PageUptodate(page)) |
82 | goto out; | |
83 | ||
05ca3632 JK |
84 | fio.page = page; |
85 | ||
7735730d CY |
86 | err = f2fs_submit_page_bio(&fio); |
87 | if (err) { | |
88 | f2fs_put_page(page, 1); | |
89 | return ERR_PTR(err); | |
86531d6b | 90 | } |
127e670a | 91 | |
8b83ac81 CY |
92 | f2fs_update_iostat(sbi, FS_META_READ_IO, F2FS_BLKSIZE); |
93 | ||
393ff91f | 94 | lock_page(page); |
6bacf52f | 95 | if (unlikely(page->mapping != mapping)) { |
afcb7ca0 JK |
96 | f2fs_put_page(page, 1); |
97 | goto repeat; | |
98 | } | |
f3f338ca | 99 | |
81114baa | 100 | if (unlikely(!PageUptodate(page))) { |
50c63009 JK |
101 | if (page->index == sbi->metapage_eio_ofs && |
102 | sbi->metapage_eio_cnt++ == MAX_RETRY_META_PAGE_EIO) { | |
103 | set_ckpt_flags(sbi, CP_ERROR_FLAG); | |
104 | } else { | |
105 | sbi->metapage_eio_ofs = page->index; | |
106 | sbi->metapage_eio_cnt = 0; | |
107 | } | |
7735730d CY |
108 | f2fs_put_page(page, 1); |
109 | return ERR_PTR(-EIO); | |
81114baa | 110 | } |
393ff91f | 111 | out: |
127e670a JK |
112 | return page; |
113 | } | |
114 | ||
4d57b86d | 115 | struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
2b947003 CY |
116 | { |
117 | return __get_meta_page(sbi, index, true); | |
118 | } | |
119 | ||
86f33603 | 120 | struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index) |
7735730d CY |
121 | { |
122 | struct page *page; | |
123 | int count = 0; | |
124 | ||
125 | retry: | |
126 | page = __get_meta_page(sbi, index, true); | |
127 | if (IS_ERR(page)) { | |
128 | if (PTR_ERR(page) == -EIO && | |
129 | ++count <= DEFAULT_RETRY_IO_COUNT) | |
130 | goto retry; | |
7735730d | 131 | f2fs_stop_checkpoint(sbi, false); |
7735730d | 132 | } |
7735730d CY |
133 | return page; |
134 | } | |
135 | ||
2b947003 | 136 | /* for POR only */ |
4d57b86d | 137 | struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index) |
2b947003 CY |
138 | { |
139 | return __get_meta_page(sbi, index, false); | |
140 | } | |
141 | ||
93770ab7 CY |
142 | static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr, |
143 | int type) | |
144 | { | |
145 | struct seg_entry *se; | |
146 | unsigned int segno, offset; | |
147 | bool exist; | |
148 | ||
149 | if (type != DATA_GENERIC_ENHANCE && type != DATA_GENERIC_ENHANCE_READ) | |
150 | return true; | |
151 | ||
152 | segno = GET_SEGNO(sbi, blkaddr); | |
153 | offset = GET_BLKOFF_FROM_SEG0(sbi, blkaddr); | |
154 | se = get_seg_entry(sbi, segno); | |
155 | ||
156 | exist = f2fs_test_bit(offset, se->cur_valid_map); | |
157 | if (!exist && type == DATA_GENERIC_ENHANCE) { | |
dcbb4c10 JP |
158 | f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d", |
159 | blkaddr, exist); | |
93770ab7 CY |
160 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
161 | WARN_ON(1); | |
162 | } | |
163 | return exist; | |
164 | } | |
165 | ||
e1da7872 | 166 | bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, |
4d57b86d | 167 | block_t blkaddr, int type) |
662befda CY |
168 | { |
169 | switch (type) { | |
170 | case META_NAT: | |
66b00c18 | 171 | break; |
662befda | 172 | case META_SIT: |
66b00c18 CY |
173 | if (unlikely(blkaddr >= SIT_BLK_CNT(sbi))) |
174 | return false; | |
175 | break; | |
81c1a0f1 | 176 | case META_SSA: |
66b00c18 CY |
177 | if (unlikely(blkaddr >= MAIN_BLKADDR(sbi) || |
178 | blkaddr < SM_I(sbi)->ssa_blkaddr)) | |
179 | return false; | |
180 | break; | |
662befda | 181 | case META_CP: |
66b00c18 CY |
182 | if (unlikely(blkaddr >= SIT_I(sbi)->sit_base_addr || |
183 | blkaddr < __start_cp_addr(sbi))) | |
184 | return false; | |
185 | break; | |
4c521f49 | 186 | case META_POR: |
93770ab7 CY |
187 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
188 | blkaddr < MAIN_BLKADDR(sbi))) | |
189 | return false; | |
190 | break; | |
e1da7872 | 191 | case DATA_GENERIC: |
93770ab7 CY |
192 | case DATA_GENERIC_ENHANCE: |
193 | case DATA_GENERIC_ENHANCE_READ: | |
66b00c18 | 194 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
93770ab7 | 195 | blkaddr < MAIN_BLKADDR(sbi))) { |
dcbb4c10 JP |
196 | f2fs_warn(sbi, "access invalid blkaddr:%u", |
197 | blkaddr); | |
93770ab7 CY |
198 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
199 | WARN_ON(1); | |
66b00c18 | 200 | return false; |
93770ab7 CY |
201 | } else { |
202 | return __is_bitmap_valid(sbi, blkaddr, type); | |
c9b60788 | 203 | } |
66b00c18 | 204 | break; |
e1da7872 CY |
205 | case META_GENERIC: |
206 | if (unlikely(blkaddr < SEG0_BLKADDR(sbi) || | |
207 | blkaddr >= MAIN_BLKADDR(sbi))) | |
208 | return false; | |
209 | break; | |
662befda CY |
210 | default: |
211 | BUG(); | |
212 | } | |
66b00c18 CY |
213 | |
214 | return true; | |
662befda CY |
215 | } |
216 | ||
217 | /* | |
7a88ddb5 | 218 | * Readahead CP/NAT/SIT/SSA/POR pages |
662befda | 219 | */ |
4d57b86d | 220 | int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, |
26879fb1 | 221 | int type, bool sync) |
662befda | 222 | { |
662befda | 223 | struct page *page; |
4c521f49 | 224 | block_t blkno = start; |
662befda | 225 | struct f2fs_io_info fio = { |
05ca3632 | 226 | .sbi = sbi, |
662befda | 227 | .type = META, |
04d328de | 228 | .op = REQ_OP_READ, |
70fd7614 | 229 | .op_flags = sync ? (REQ_META | REQ_PRIO) : REQ_RAHEAD, |
4375a336 | 230 | .encrypted_page = NULL, |
fb830fc5 | 231 | .in_list = false, |
6dc3a126 | 232 | .is_por = (type == META_POR), |
662befda | 233 | }; |
e9f5b8b8 | 234 | struct blk_plug plug; |
ce4c638c | 235 | int err; |
662befda | 236 | |
2b947003 | 237 | if (unlikely(type == META_POR)) |
04d328de | 238 | fio.op_flags &= ~REQ_META; |
2b947003 | 239 | |
e9f5b8b8 | 240 | blk_start_plug(&plug); |
662befda | 241 | for (; nrpages-- > 0; blkno++) { |
662befda | 242 | |
e1da7872 | 243 | if (!f2fs_is_valid_blkaddr(sbi, blkno, type)) |
66b00c18 CY |
244 | goto out; |
245 | ||
662befda CY |
246 | switch (type) { |
247 | case META_NAT: | |
66b00c18 CY |
248 | if (unlikely(blkno >= |
249 | NAT_BLOCK_OFFSET(NM_I(sbi)->max_nid))) | |
662befda | 250 | blkno = 0; |
66b00c18 | 251 | /* get nat block addr */ |
7a9d7548 | 252 | fio.new_blkaddr = current_nat_addr(sbi, |
662befda CY |
253 | blkno * NAT_ENTRY_PER_BLOCK); |
254 | break; | |
255 | case META_SIT: | |
6a257471 CY |
256 | if (unlikely(blkno >= TOTAL_SEGS(sbi))) |
257 | goto out; | |
662befda | 258 | /* get sit block addr */ |
7a9d7548 | 259 | fio.new_blkaddr = current_sit_addr(sbi, |
662befda | 260 | blkno * SIT_ENTRY_PER_BLOCK); |
662befda | 261 | break; |
81c1a0f1 | 262 | case META_SSA: |
662befda | 263 | case META_CP: |
4c521f49 | 264 | case META_POR: |
7a9d7548 | 265 | fio.new_blkaddr = blkno; |
662befda CY |
266 | break; |
267 | default: | |
268 | BUG(); | |
269 | } | |
270 | ||
300e129c JK |
271 | page = f2fs_grab_cache_page(META_MAPPING(sbi), |
272 | fio.new_blkaddr, false); | |
662befda CY |
273 | if (!page) |
274 | continue; | |
275 | if (PageUptodate(page)) { | |
662befda CY |
276 | f2fs_put_page(page, 1); |
277 | continue; | |
278 | } | |
279 | ||
05ca3632 | 280 | fio.page = page; |
ce4c638c CY |
281 | err = f2fs_submit_page_bio(&fio); |
282 | f2fs_put_page(page, err ? 1 : 0); | |
8b83ac81 CY |
283 | |
284 | if (!err) | |
285 | f2fs_update_iostat(sbi, FS_META_READ_IO, F2FS_BLKSIZE); | |
662befda CY |
286 | } |
287 | out: | |
e9f5b8b8 | 288 | blk_finish_plug(&plug); |
662befda CY |
289 | return blkno - start; |
290 | } | |
291 | ||
430f163b CY |
292 | void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index, |
293 | unsigned int ra_blocks) | |
635aee1f CY |
294 | { |
295 | struct page *page; | |
296 | bool readahead = false; | |
297 | ||
430f163b CY |
298 | if (ra_blocks == RECOVERY_MIN_RA_BLOCKS) |
299 | return; | |
300 | ||
635aee1f | 301 | page = find_get_page(META_MAPPING(sbi), index); |
4da7bf5a | 302 | if (!page || !PageUptodate(page)) |
635aee1f CY |
303 | readahead = true; |
304 | f2fs_put_page(page, 0); | |
305 | ||
306 | if (readahead) | |
430f163b | 307 | f2fs_ra_meta_pages(sbi, index, ra_blocks, META_POR, true); |
635aee1f CY |
308 | } |
309 | ||
b0af6d49 CY |
310 | static int __f2fs_write_meta_page(struct page *page, |
311 | struct writeback_control *wbc, | |
312 | enum iostat_type io_type) | |
127e670a | 313 | { |
4081363f | 314 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
127e670a | 315 | |
ecda0de3 CY |
316 | trace_f2fs_writepage(page, META); |
317 | ||
af697c0f JK |
318 | if (unlikely(f2fs_cp_error(sbi))) |
319 | goto redirty_out; | |
caf0047e | 320 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
cfb271d4 | 321 | goto redirty_out; |
857dc4e0 | 322 | if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0)) |
cfb271d4 | 323 | goto redirty_out; |
127e670a | 324 | |
4d57b86d | 325 | f2fs_do_write_meta_page(sbi, page, io_type); |
577e3495 | 326 | dec_page_count(sbi, F2FS_DIRTY_META); |
0c3a5797 CY |
327 | |
328 | if (wbc->for_reclaim) | |
bab475c5 | 329 | f2fs_submit_merged_write_cond(sbi, NULL, page, 0, META); |
0c3a5797 | 330 | |
577e3495 | 331 | unlock_page(page); |
857dc4e0 | 332 | |
0c3a5797 | 333 | if (unlikely(f2fs_cp_error(sbi))) |
b9109b0e | 334 | f2fs_submit_merged_write(sbi, META); |
0c3a5797 | 335 | |
577e3495 | 336 | return 0; |
cfb271d4 CY |
337 | |
338 | redirty_out: | |
76f60268 | 339 | redirty_page_for_writepage(wbc, page); |
cfb271d4 | 340 | return AOP_WRITEPAGE_ACTIVATE; |
127e670a JK |
341 | } |
342 | ||
b0af6d49 CY |
343 | static int f2fs_write_meta_page(struct page *page, |
344 | struct writeback_control *wbc) | |
345 | { | |
346 | return __f2fs_write_meta_page(page, wbc, FS_META_IO); | |
347 | } | |
348 | ||
127e670a JK |
349 | static int f2fs_write_meta_pages(struct address_space *mapping, |
350 | struct writeback_control *wbc) | |
351 | { | |
4081363f | 352 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
50c8cdb3 | 353 | long diff, written; |
127e670a | 354 | |
0771fcc7 CY |
355 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
356 | goto skip_write; | |
357 | ||
5459aa97 | 358 | /* collect a number of dirty meta pages and write together */ |
812a9597 JK |
359 | if (wbc->sync_mode != WB_SYNC_ALL && |
360 | get_pages(sbi, F2FS_DIRTY_META) < | |
361 | nr_pages_to_skip(sbi, META)) | |
d3baf95d | 362 | goto skip_write; |
127e670a | 363 | |
a29d0e0b | 364 | /* if locked failed, cp will flush dirty pages instead */ |
e4544b63 | 365 | if (!f2fs_down_write_trylock(&sbi->cp_global_sem)) |
a29d0e0b | 366 | goto skip_write; |
d31c7c3f | 367 | |
a29d0e0b | 368 | trace_f2fs_writepages(mapping->host, wbc, META); |
50c8cdb3 | 369 | diff = nr_pages_to_write(sbi, META, wbc); |
4d57b86d | 370 | written = f2fs_sync_meta_pages(sbi, META, wbc->nr_to_write, FS_META_IO); |
e4544b63 | 371 | f2fs_up_write(&sbi->cp_global_sem); |
50c8cdb3 | 372 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff); |
127e670a | 373 | return 0; |
d3baf95d JK |
374 | |
375 | skip_write: | |
376 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META); | |
d31c7c3f | 377 | trace_f2fs_writepages(mapping->host, wbc, META); |
d3baf95d | 378 | return 0; |
127e670a JK |
379 | } |
380 | ||
4d57b86d | 381 | long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, |
b0af6d49 | 382 | long nr_to_write, enum iostat_type io_type) |
127e670a | 383 | { |
9df27d98 | 384 | struct address_space *mapping = META_MAPPING(sbi); |
028a63a6 | 385 | pgoff_t index = 0, prev = ULONG_MAX; |
127e670a JK |
386 | struct pagevec pvec; |
387 | long nwritten = 0; | |
028a63a6 | 388 | int nr_pages; |
127e670a JK |
389 | struct writeback_control wbc = { |
390 | .for_reclaim = 0, | |
391 | }; | |
e9f5b8b8 | 392 | struct blk_plug plug; |
127e670a | 393 | |
86679820 | 394 | pagevec_init(&pvec); |
127e670a | 395 | |
e9f5b8b8 CY |
396 | blk_start_plug(&plug); |
397 | ||
028a63a6 | 398 | while ((nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, |
67fd707f | 399 | PAGECACHE_TAG_DIRTY))) { |
028a63a6 | 400 | int i; |
127e670a JK |
401 | |
402 | for (i = 0; i < nr_pages; i++) { | |
403 | struct page *page = pvec.pages[i]; | |
203681f6 | 404 | |
80dd9c0e | 405 | if (prev == ULONG_MAX) |
6066d8cd JK |
406 | prev = page->index - 1; |
407 | if (nr_to_write != LONG_MAX && page->index != prev + 1) { | |
408 | pagevec_release(&pvec); | |
409 | goto stop; | |
410 | } | |
411 | ||
127e670a | 412 | lock_page(page); |
203681f6 JK |
413 | |
414 | if (unlikely(page->mapping != mapping)) { | |
415 | continue_unlock: | |
416 | unlock_page(page); | |
417 | continue; | |
418 | } | |
419 | if (!PageDirty(page)) { | |
420 | /* someone wrote it for us */ | |
421 | goto continue_unlock; | |
422 | } | |
423 | ||
bae0ee7a | 424 | f2fs_wait_on_page_writeback(page, META, true, true); |
fa3d2bdf | 425 | |
203681f6 JK |
426 | if (!clear_page_dirty_for_io(page)) |
427 | goto continue_unlock; | |
428 | ||
b0af6d49 | 429 | if (__f2fs_write_meta_page(page, &wbc, io_type)) { |
577e3495 JK |
430 | unlock_page(page); |
431 | break; | |
432 | } | |
cfb271d4 | 433 | nwritten++; |
6066d8cd | 434 | prev = page->index; |
cfb271d4 | 435 | if (unlikely(nwritten >= nr_to_write)) |
127e670a JK |
436 | break; |
437 | } | |
438 | pagevec_release(&pvec); | |
439 | cond_resched(); | |
440 | } | |
6066d8cd | 441 | stop: |
127e670a | 442 | if (nwritten) |
b9109b0e | 443 | f2fs_submit_merged_write(sbi, type); |
127e670a | 444 | |
e9f5b8b8 CY |
445 | blk_finish_plug(&plug); |
446 | ||
127e670a JK |
447 | return nwritten; |
448 | } | |
449 | ||
1d9ac659 MWO |
450 | static bool f2fs_dirty_meta_folio(struct address_space *mapping, |
451 | struct folio *folio) | |
127e670a | 452 | { |
1d9ac659 MWO |
453 | trace_f2fs_set_page_dirty(&folio->page, META); |
454 | ||
455 | if (!folio_test_uptodate(folio)) | |
456 | folio_mark_uptodate(folio); | |
457 | if (!folio_test_dirty(folio)) { | |
458 | filemap_dirty_folio(mapping, folio); | |
29c87793 | 459 | inc_page_count(F2FS_M_SB(mapping), F2FS_DIRTY_META); |
1d9ac659 MWO |
460 | set_page_private_reference(&folio->page); |
461 | return true; | |
127e670a | 462 | } |
1d9ac659 | 463 | return false; |
127e670a JK |
464 | } |
465 | ||
466 | const struct address_space_operations f2fs_meta_aops = { | |
467 | .writepage = f2fs_write_meta_page, | |
468 | .writepages = f2fs_write_meta_pages, | |
1d9ac659 | 469 | .dirty_folio = f2fs_dirty_meta_folio, |
91503996 | 470 | .invalidate_folio = f2fs_invalidate_folio, |
487261f3 | 471 | .releasepage = f2fs_release_page, |
5b7a487c WG |
472 | #ifdef CONFIG_MIGRATION |
473 | .migratepage = f2fs_migrate_page, | |
474 | #endif | |
127e670a JK |
475 | }; |
476 | ||
39d787be CY |
477 | static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, |
478 | unsigned int devidx, int type) | |
953e6cc6 | 479 | { |
67298804 | 480 | struct inode_management *im = &sbi->im[type]; |
4b106518 | 481 | struct ino_entry *e = NULL, *new = NULL; |
80c54505 | 482 | |
4b106518 CY |
483 | if (type == FLUSH_INO) { |
484 | rcu_read_lock(); | |
485 | e = radix_tree_lookup(&im->ino_root, ino); | |
486 | rcu_read_unlock(); | |
487 | } | |
488 | ||
489 | retry: | |
490 | if (!e) | |
32410577 CY |
491 | new = f2fs_kmem_cache_alloc(ino_entry_slab, |
492 | GFP_NOFS, true, NULL); | |
19526d74 | 493 | |
80c54505 | 494 | radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); |
769ec6e5 | 495 | |
67298804 | 496 | spin_lock(&im->ino_lock); |
67298804 | 497 | e = radix_tree_lookup(&im->ino_root, ino); |
39efac41 | 498 | if (!e) { |
4b106518 CY |
499 | if (!new) { |
500 | spin_unlock(&im->ino_lock); | |
501 | goto retry; | |
502 | } | |
503 | e = new; | |
19526d74 CY |
504 | if (unlikely(radix_tree_insert(&im->ino_root, ino, e))) |
505 | f2fs_bug_on(sbi, 1); | |
506 | ||
39efac41 JK |
507 | memset(e, 0, sizeof(struct ino_entry)); |
508 | e->ino = ino; | |
953e6cc6 | 509 | |
67298804 | 510 | list_add_tail(&e->list, &im->ino_list); |
8c402946 | 511 | if (type != ORPHAN_INO) |
67298804 | 512 | im->ino_num++; |
39efac41 | 513 | } |
39d787be CY |
514 | |
515 | if (type == FLUSH_INO) | |
516 | f2fs_set_bit(devidx, (char *)&e->dirty_device); | |
517 | ||
67298804 | 518 | spin_unlock(&im->ino_lock); |
769ec6e5 | 519 | radix_tree_preload_end(); |
80c54505 | 520 | |
4b106518 CY |
521 | if (new && e != new) |
522 | kmem_cache_free(ino_entry_slab, new); | |
953e6cc6 JK |
523 | } |
524 | ||
6451e041 | 525 | static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
953e6cc6 | 526 | { |
67298804 | 527 | struct inode_management *im = &sbi->im[type]; |
6451e041 | 528 | struct ino_entry *e; |
953e6cc6 | 529 | |
67298804 CY |
530 | spin_lock(&im->ino_lock); |
531 | e = radix_tree_lookup(&im->ino_root, ino); | |
39efac41 JK |
532 | if (e) { |
533 | list_del(&e->list); | |
67298804 CY |
534 | radix_tree_delete(&im->ino_root, ino); |
535 | im->ino_num--; | |
536 | spin_unlock(&im->ino_lock); | |
39efac41 JK |
537 | kmem_cache_free(ino_entry_slab, e); |
538 | return; | |
953e6cc6 | 539 | } |
67298804 | 540 | spin_unlock(&im->ino_lock); |
953e6cc6 JK |
541 | } |
542 | ||
4d57b86d | 543 | void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
544 | { |
545 | /* add new dirty ino entry into list */ | |
39d787be | 546 | __add_ino_entry(sbi, ino, 0, type); |
fff04f90 JK |
547 | } |
548 | ||
4d57b86d | 549 | void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
550 | { |
551 | /* remove dirty ino entry from list */ | |
552 | __remove_ino_entry(sbi, ino, type); | |
553 | } | |
554 | ||
1f07cc58 | 555 | /* mode should be APPEND_INO, UPDATE_INO or TRANS_DIR_INO */ |
4d57b86d | 556 | bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode) |
fff04f90 | 557 | { |
67298804 | 558 | struct inode_management *im = &sbi->im[mode]; |
fff04f90 | 559 | struct ino_entry *e; |
67298804 CY |
560 | |
561 | spin_lock(&im->ino_lock); | |
562 | e = radix_tree_lookup(&im->ino_root, ino); | |
563 | spin_unlock(&im->ino_lock); | |
fff04f90 JK |
564 | return e ? true : false; |
565 | } | |
566 | ||
4d57b86d | 567 | void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all) |
fff04f90 JK |
568 | { |
569 | struct ino_entry *e, *tmp; | |
570 | int i; | |
571 | ||
39d787be | 572 | for (i = all ? ORPHAN_INO : APPEND_INO; i < MAX_INO_ENTRY; i++) { |
67298804 CY |
573 | struct inode_management *im = &sbi->im[i]; |
574 | ||
575 | spin_lock(&im->ino_lock); | |
576 | list_for_each_entry_safe(e, tmp, &im->ino_list, list) { | |
fff04f90 | 577 | list_del(&e->list); |
67298804 | 578 | radix_tree_delete(&im->ino_root, e->ino); |
fff04f90 | 579 | kmem_cache_free(ino_entry_slab, e); |
67298804 | 580 | im->ino_num--; |
fff04f90 | 581 | } |
67298804 | 582 | spin_unlock(&im->ino_lock); |
fff04f90 JK |
583 | } |
584 | } | |
585 | ||
4d57b86d | 586 | void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
39d787be CY |
587 | unsigned int devidx, int type) |
588 | { | |
589 | __add_ino_entry(sbi, ino, devidx, type); | |
590 | } | |
591 | ||
4d57b86d | 592 | bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
39d787be CY |
593 | unsigned int devidx, int type) |
594 | { | |
595 | struct inode_management *im = &sbi->im[type]; | |
596 | struct ino_entry *e; | |
597 | bool is_dirty = false; | |
598 | ||
599 | spin_lock(&im->ino_lock); | |
600 | e = radix_tree_lookup(&im->ino_root, ino); | |
601 | if (e && f2fs_test_bit(devidx, (char *)&e->dirty_device)) | |
602 | is_dirty = true; | |
603 | spin_unlock(&im->ino_lock); | |
604 | return is_dirty; | |
605 | } | |
606 | ||
4d57b86d | 607 | int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi) |
127e670a | 608 | { |
67298804 | 609 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a JK |
610 | int err = 0; |
611 | ||
67298804 | 612 | spin_lock(&im->ino_lock); |
cb78942b | 613 | |
1ecc0c5c | 614 | if (time_to_inject(sbi, FAULT_ORPHAN)) { |
cb78942b | 615 | spin_unlock(&im->ino_lock); |
c45d6002 | 616 | f2fs_show_injection_info(sbi, FAULT_ORPHAN); |
cb78942b JK |
617 | return -ENOSPC; |
618 | } | |
7fa750a1 | 619 | |
67298804 | 620 | if (unlikely(im->ino_num >= sbi->max_orphans)) |
127e670a | 621 | err = -ENOSPC; |
cbd56e7d | 622 | else |
67298804 CY |
623 | im->ino_num++; |
624 | spin_unlock(&im->ino_lock); | |
0d47c1ad | 625 | |
127e670a JK |
626 | return err; |
627 | } | |
628 | ||
4d57b86d | 629 | void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi) |
cbd56e7d | 630 | { |
67298804 CY |
631 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
632 | ||
633 | spin_lock(&im->ino_lock); | |
634 | f2fs_bug_on(sbi, im->ino_num == 0); | |
635 | im->ino_num--; | |
636 | spin_unlock(&im->ino_lock); | |
cbd56e7d JK |
637 | } |
638 | ||
4d57b86d | 639 | void f2fs_add_orphan_inode(struct inode *inode) |
127e670a | 640 | { |
39efac41 | 641 | /* add new orphan ino entry into list */ |
39d787be | 642 | __add_ino_entry(F2FS_I_SB(inode), inode->i_ino, 0, ORPHAN_INO); |
4d57b86d | 643 | f2fs_update_inode_page(inode); |
127e670a JK |
644 | } |
645 | ||
4d57b86d | 646 | void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 647 | { |
953e6cc6 | 648 | /* remove orphan entry from orphan list */ |
6451e041 | 649 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
127e670a JK |
650 | } |
651 | ||
8c14bfad | 652 | static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 653 | { |
8c14bfad | 654 | struct inode *inode; |
5905f9af | 655 | struct node_info ni; |
76a45e3c | 656 | int err; |
8c14bfad | 657 | |
5905f9af | 658 | inode = f2fs_iget_retry(sbi->sb, ino); |
8c14bfad CY |
659 | if (IS_ERR(inode)) { |
660 | /* | |
661 | * there should be a bug that we can't find the entry | |
662 | * to orphan inode. | |
663 | */ | |
664 | f2fs_bug_on(sbi, PTR_ERR(inode) == -ENOENT); | |
665 | return PTR_ERR(inode); | |
666 | } | |
667 | ||
10a26878 | 668 | err = f2fs_dquot_initialize(inode); |
a515d12f SY |
669 | if (err) { |
670 | iput(inode); | |
0f9ec2a8 | 671 | goto err_out; |
a515d12f | 672 | } |
0f9ec2a8 | 673 | |
127e670a JK |
674 | clear_nlink(inode); |
675 | ||
676 | /* truncate all the data during iput */ | |
677 | iput(inode); | |
5905f9af | 678 | |
a9419b63 | 679 | err = f2fs_get_node_info(sbi, ino, &ni, false); |
7735730d CY |
680 | if (err) |
681 | goto err_out; | |
5905f9af JK |
682 | |
683 | /* ENOMEM was fully retried in f2fs_evict_inode. */ | |
684 | if (ni.blk_addr != NULL_ADDR) { | |
0f9ec2a8 JK |
685 | err = -EIO; |
686 | goto err_out; | |
5905f9af | 687 | } |
8c14bfad | 688 | return 0; |
0f9ec2a8 JK |
689 | |
690 | err_out: | |
691 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
dcbb4c10 JP |
692 | f2fs_warn(sbi, "%s: orphan failed (ino=%x), run fsck to fix.", |
693 | __func__, ino); | |
0f9ec2a8 | 694 | return err; |
127e670a JK |
695 | } |
696 | ||
4d57b86d | 697 | int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi) |
127e670a | 698 | { |
3c642985 | 699 | block_t start_blk, orphan_blocks, i, j; |
4b2414d0 CY |
700 | unsigned int s_flags = sbi->sb->s_flags; |
701 | int err = 0; | |
ea676733 JK |
702 | #ifdef CONFIG_QUOTA |
703 | int quota_enabled; | |
704 | #endif | |
127e670a | 705 | |
aaec2b1d | 706 | if (!is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG)) |
8c14bfad | 707 | return 0; |
127e670a | 708 | |
b61af314 | 709 | if (bdev_read_only(sbi->sb->s_bdev)) { |
dcbb4c10 | 710 | f2fs_info(sbi, "write access unavailable, skipping orphan cleanup"); |
b61af314 CY |
711 | return 0; |
712 | } | |
713 | ||
1751e8a6 | 714 | if (s_flags & SB_RDONLY) { |
dcbb4c10 | 715 | f2fs_info(sbi, "orphan cleanup on readonly fs"); |
1751e8a6 | 716 | sbi->sb->s_flags &= ~SB_RDONLY; |
4b2414d0 CY |
717 | } |
718 | ||
719 | #ifdef CONFIG_QUOTA | |
76cf05d7 SY |
720 | /* |
721 | * Turn on quotas which were not enabled for read-only mounts if | |
722 | * filesystem has quota feature, so that they are updated correctly. | |
723 | */ | |
1751e8a6 | 724 | quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY); |
4b2414d0 CY |
725 | #endif |
726 | ||
55141486 | 727 | start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi); |
3c642985 | 728 | orphan_blocks = __start_sum_addr(sbi) - 1 - __cp_payload(sbi); |
127e670a | 729 | |
4d57b86d | 730 | f2fs_ra_meta_pages(sbi, start_blk, orphan_blocks, META_CP, true); |
662befda | 731 | |
3c642985 | 732 | for (i = 0; i < orphan_blocks; i++) { |
7735730d | 733 | struct page *page; |
127e670a JK |
734 | struct f2fs_orphan_block *orphan_blk; |
735 | ||
7735730d CY |
736 | page = f2fs_get_meta_page(sbi, start_blk + i); |
737 | if (IS_ERR(page)) { | |
738 | err = PTR_ERR(page); | |
739 | goto out; | |
740 | } | |
741 | ||
127e670a JK |
742 | orphan_blk = (struct f2fs_orphan_block *)page_address(page); |
743 | for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) { | |
744 | nid_t ino = le32_to_cpu(orphan_blk->ino[j]); | |
5f029c04 | 745 | |
8c14bfad CY |
746 | err = recover_orphan_inode(sbi, ino); |
747 | if (err) { | |
748 | f2fs_put_page(page, 1); | |
4b2414d0 | 749 | goto out; |
8c14bfad | 750 | } |
127e670a JK |
751 | } |
752 | f2fs_put_page(page, 1); | |
753 | } | |
754 | /* clear Orphan Flag */ | |
aaec2b1d | 755 | clear_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG); |
4b2414d0 | 756 | out: |
1378752b CY |
757 | set_sbi_flag(sbi, SBI_IS_RECOVERED); |
758 | ||
4b2414d0 CY |
759 | #ifdef CONFIG_QUOTA |
760 | /* Turn quotas off */ | |
ea676733 JK |
761 | if (quota_enabled) |
762 | f2fs_quota_off_umount(sbi->sb); | |
4b2414d0 | 763 | #endif |
1751e8a6 | 764 | sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */ |
4b2414d0 CY |
765 | |
766 | return err; | |
127e670a JK |
767 | } |
768 | ||
769 | static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk) | |
770 | { | |
502c6e0b | 771 | struct list_head *head; |
127e670a | 772 | struct f2fs_orphan_block *orphan_blk = NULL; |
127e670a | 773 | unsigned int nentries = 0; |
bd936f84 | 774 | unsigned short index = 1; |
8c402946 | 775 | unsigned short orphan_blocks; |
4531929e | 776 | struct page *page = NULL; |
6451e041 | 777 | struct ino_entry *orphan = NULL; |
67298804 | 778 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a | 779 | |
67298804 | 780 | orphan_blocks = GET_ORPHAN_BLOCKS(im->ino_num); |
8c402946 | 781 | |
d6c67a4f JK |
782 | /* |
783 | * we don't need to do spin_lock(&im->ino_lock) here, since all the | |
784 | * orphan inode operations are covered under f2fs_lock_op(). | |
785 | * And, spin_lock should be avoided due to page operations below. | |
786 | */ | |
67298804 | 787 | head = &im->ino_list; |
127e670a JK |
788 | |
789 | /* loop for each orphan inode entry and write them in Jornal block */ | |
502c6e0b GZ |
790 | list_for_each_entry(orphan, head, list) { |
791 | if (!page) { | |
4d57b86d | 792 | page = f2fs_grab_meta_page(sbi, start_blk++); |
502c6e0b GZ |
793 | orphan_blk = |
794 | (struct f2fs_orphan_block *)page_address(page); | |
795 | memset(orphan_blk, 0, sizeof(*orphan_blk)); | |
796 | } | |
127e670a | 797 | |
36795567 | 798 | orphan_blk->ino[nentries++] = cpu_to_le32(orphan->ino); |
127e670a | 799 | |
36795567 | 800 | if (nentries == F2FS_ORPHANS_PER_BLOCK) { |
127e670a JK |
801 | /* |
802 | * an orphan block is full of 1020 entries, | |
803 | * then we need to flush current orphan blocks | |
804 | * and bring another one in memory | |
805 | */ | |
806 | orphan_blk->blk_addr = cpu_to_le16(index); | |
807 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
808 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
809 | set_page_dirty(page); | |
810 | f2fs_put_page(page, 1); | |
811 | index++; | |
127e670a JK |
812 | nentries = 0; |
813 | page = NULL; | |
814 | } | |
502c6e0b | 815 | } |
127e670a | 816 | |
502c6e0b GZ |
817 | if (page) { |
818 | orphan_blk->blk_addr = cpu_to_le16(index); | |
819 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
820 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
821 | set_page_dirty(page); | |
822 | f2fs_put_page(page, 1); | |
127e670a | 823 | } |
127e670a JK |
824 | } |
825 | ||
d7eb8f1c CY |
826 | static __u32 f2fs_checkpoint_chksum(struct f2fs_sb_info *sbi, |
827 | struct f2fs_checkpoint *ckpt) | |
828 | { | |
829 | unsigned int chksum_ofs = le32_to_cpu(ckpt->checksum_offset); | |
830 | __u32 chksum; | |
831 | ||
832 | chksum = f2fs_crc32(sbi, ckpt, chksum_ofs); | |
833 | if (chksum_ofs < CP_CHKSUM_OFFSET) { | |
834 | chksum_ofs += sizeof(chksum); | |
835 | chksum = f2fs_chksum(sbi, chksum, (__u8 *)ckpt + chksum_ofs, | |
836 | F2FS_BLKSIZE - chksum_ofs); | |
837 | } | |
838 | return chksum; | |
839 | } | |
840 | ||
fc0065ad TY |
841 | static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr, |
842 | struct f2fs_checkpoint **cp_block, struct page **cp_page, | |
843 | unsigned long long *version) | |
127e670a | 844 | { |
fc0065ad | 845 | size_t crc_offset = 0; |
d7eb8f1c | 846 | __u32 crc; |
127e670a | 847 | |
4d57b86d | 848 | *cp_page = f2fs_get_meta_page(sbi, cp_addr); |
7735730d CY |
849 | if (IS_ERR(*cp_page)) |
850 | return PTR_ERR(*cp_page); | |
851 | ||
fc0065ad | 852 | *cp_block = (struct f2fs_checkpoint *)page_address(*cp_page); |
127e670a | 853 | |
fc0065ad | 854 | crc_offset = le32_to_cpu((*cp_block)->checksum_offset); |
d7eb8f1c CY |
855 | if (crc_offset < CP_MIN_CHKSUM_OFFSET || |
856 | crc_offset > CP_CHKSUM_OFFSET) { | |
d3f07c04 | 857 | f2fs_put_page(*cp_page, 1); |
dcbb4c10 | 858 | f2fs_warn(sbi, "invalid crc_offset: %zu", crc_offset); |
fc0065ad TY |
859 | return -EINVAL; |
860 | } | |
127e670a | 861 | |
d7eb8f1c CY |
862 | crc = f2fs_checkpoint_chksum(sbi, *cp_block); |
863 | if (crc != cur_cp_crc(*cp_block)) { | |
d3f07c04 | 864 | f2fs_put_page(*cp_page, 1); |
dcbb4c10 | 865 | f2fs_warn(sbi, "invalid crc value"); |
fc0065ad TY |
866 | return -EINVAL; |
867 | } | |
127e670a | 868 | |
fc0065ad TY |
869 | *version = cur_cp_version(*cp_block); |
870 | return 0; | |
871 | } | |
127e670a | 872 | |
fc0065ad TY |
873 | static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, |
874 | block_t cp_addr, unsigned long long *version) | |
875 | { | |
876 | struct page *cp_page_1 = NULL, *cp_page_2 = NULL; | |
877 | struct f2fs_checkpoint *cp_block = NULL; | |
878 | unsigned long long cur_version = 0, pre_version = 0; | |
5b5b4f85 | 879 | unsigned int cp_blocks; |
fc0065ad | 880 | int err; |
127e670a | 881 | |
fc0065ad TY |
882 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
883 | &cp_page_1, version); | |
884 | if (err) | |
d3f07c04 | 885 | return NULL; |
c9b60788 | 886 | |
5b5b4f85 CY |
887 | cp_blocks = le32_to_cpu(cp_block->cp_pack_total_block_count); |
888 | ||
889 | if (cp_blocks > sbi->blocks_per_seg || cp_blocks <= F2FS_CP_PACKS) { | |
dcbb4c10 JP |
890 | f2fs_warn(sbi, "invalid cp_pack_total_block_count:%u", |
891 | le32_to_cpu(cp_block->cp_pack_total_block_count)); | |
d3f07c04 | 892 | goto invalid_cp; |
c9b60788 | 893 | } |
fc0065ad | 894 | pre_version = *version; |
127e670a | 895 | |
5b5b4f85 | 896 | cp_addr += cp_blocks - 1; |
fc0065ad TY |
897 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
898 | &cp_page_2, version); | |
899 | if (err) | |
d3f07c04 | 900 | goto invalid_cp; |
fc0065ad | 901 | cur_version = *version; |
127e670a JK |
902 | |
903 | if (cur_version == pre_version) { | |
904 | *version = cur_version; | |
905 | f2fs_put_page(cp_page_2, 1); | |
906 | return cp_page_1; | |
907 | } | |
127e670a | 908 | f2fs_put_page(cp_page_2, 1); |
d3f07c04 | 909 | invalid_cp: |
127e670a JK |
910 | f2fs_put_page(cp_page_1, 1); |
911 | return NULL; | |
912 | } | |
913 | ||
4d57b86d | 914 | int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi) |
127e670a JK |
915 | { |
916 | struct f2fs_checkpoint *cp_block; | |
917 | struct f2fs_super_block *fsb = sbi->raw_super; | |
918 | struct page *cp1, *cp2, *cur_page; | |
919 | unsigned long blk_size = sbi->blocksize; | |
920 | unsigned long long cp1_version = 0, cp2_version = 0; | |
921 | unsigned long long cp_start_blk_no; | |
55141486 | 922 | unsigned int cp_blks = 1 + __cp_payload(sbi); |
1dbe4152 CL |
923 | block_t cp_blk_no; |
924 | int i; | |
10f966bb | 925 | int err; |
127e670a | 926 | |
0b6d4ca0 EB |
927 | sbi->ckpt = f2fs_kvzalloc(sbi, array_size(blk_size, cp_blks), |
928 | GFP_KERNEL); | |
127e670a JK |
929 | if (!sbi->ckpt) |
930 | return -ENOMEM; | |
931 | /* | |
932 | * Finding out valid cp block involves read both | |
7a88ddb5 | 933 | * sets( cp pack 1 and cp pack 2) |
127e670a JK |
934 | */ |
935 | cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
936 | cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version); | |
937 | ||
938 | /* The second checkpoint pack should start at the next segment */ | |
f9a4e6df JK |
939 | cp_start_blk_no += ((unsigned long long)1) << |
940 | le32_to_cpu(fsb->log_blocks_per_seg); | |
127e670a JK |
941 | cp2 = validate_checkpoint(sbi, cp_start_blk_no, &cp2_version); |
942 | ||
943 | if (cp1 && cp2) { | |
944 | if (ver_after(cp2_version, cp1_version)) | |
945 | cur_page = cp2; | |
946 | else | |
947 | cur_page = cp1; | |
948 | } else if (cp1) { | |
949 | cur_page = cp1; | |
950 | } else if (cp2) { | |
951 | cur_page = cp2; | |
952 | } else { | |
10f966bb | 953 | err = -EFSCORRUPTED; |
127e670a JK |
954 | goto fail_no_cp; |
955 | } | |
956 | ||
957 | cp_block = (struct f2fs_checkpoint *)page_address(cur_page); | |
958 | memcpy(sbi->ckpt, cp_block, blk_size); | |
959 | ||
8508e44a JK |
960 | if (cur_page == cp1) |
961 | sbi->cur_cp_pack = 1; | |
962 | else | |
963 | sbi->cur_cp_pack = 2; | |
984ec63c | 964 | |
e494c2f9 | 965 | /* Sanity checking of checkpoint */ |
10f966bb CY |
966 | if (f2fs_sanity_check_ckpt(sbi)) { |
967 | err = -EFSCORRUPTED; | |
e494c2f9 | 968 | goto free_fail_no_cp; |
10f966bb | 969 | } |
e494c2f9 | 970 | |
1dbe4152 CL |
971 | if (cp_blks <= 1) |
972 | goto done; | |
973 | ||
974 | cp_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
975 | if (cur_page == cp2) | |
976 | cp_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg); | |
977 | ||
978 | for (i = 1; i < cp_blks; i++) { | |
979 | void *sit_bitmap_ptr; | |
980 | unsigned char *ckpt = (unsigned char *)sbi->ckpt; | |
981 | ||
4d57b86d | 982 | cur_page = f2fs_get_meta_page(sbi, cp_blk_no + i); |
10f966bb CY |
983 | if (IS_ERR(cur_page)) { |
984 | err = PTR_ERR(cur_page); | |
7735730d | 985 | goto free_fail_no_cp; |
10f966bb | 986 | } |
1dbe4152 CL |
987 | sit_bitmap_ptr = page_address(cur_page); |
988 | memcpy(ckpt + i * blk_size, sit_bitmap_ptr, blk_size); | |
989 | f2fs_put_page(cur_page, 1); | |
990 | } | |
991 | done: | |
127e670a JK |
992 | f2fs_put_page(cp1, 1); |
993 | f2fs_put_page(cp2, 1); | |
994 | return 0; | |
995 | ||
a2125ff7 JK |
996 | free_fail_no_cp: |
997 | f2fs_put_page(cp1, 1); | |
998 | f2fs_put_page(cp2, 1); | |
127e670a | 999 | fail_no_cp: |
5222595d | 1000 | kvfree(sbi->ckpt); |
10f966bb | 1001 | return err; |
127e670a JK |
1002 | } |
1003 | ||
c227f912 | 1004 | static void __add_dirty_inode(struct inode *inode, enum inode_type type) |
127e670a | 1005 | { |
4081363f | 1006 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 1007 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
127e670a | 1008 | |
91942321 | 1009 | if (is_inode_flag_set(inode, flag)) |
2710fd7e | 1010 | return; |
2d7b822a | 1011 | |
91942321 | 1012 | set_inode_flag(inode, flag); |
99f4b917 CY |
1013 | if (!f2fs_is_volatile_file(inode)) |
1014 | list_add_tail(&F2FS_I(inode)->dirty_list, | |
1015 | &sbi->inode_list[type]); | |
33fbd510 | 1016 | stat_inc_dirty_inode(sbi, type); |
5deb8267 JK |
1017 | } |
1018 | ||
c227f912 | 1019 | static void __remove_dirty_inode(struct inode *inode, enum inode_type type) |
6ad7609a | 1020 | { |
c227f912 | 1021 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
6ad7609a | 1022 | |
91942321 | 1023 | if (get_dirty_pages(inode) || !is_inode_flag_set(inode, flag)) |
6ad7609a CY |
1024 | return; |
1025 | ||
91942321 JK |
1026 | list_del_init(&F2FS_I(inode)->dirty_list); |
1027 | clear_inode_flag(inode, flag); | |
33fbd510 | 1028 | stat_dec_dirty_inode(F2FS_I_SB(inode), type); |
6ad7609a CY |
1029 | } |
1030 | ||
4f5e34f7 | 1031 | void f2fs_update_dirty_folio(struct inode *inode, struct folio *folio) |
5deb8267 | 1032 | { |
4081363f | 1033 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 1034 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
5deb8267 | 1035 | |
5ac9f36f CY |
1036 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1037 | !S_ISLNK(inode->i_mode)) | |
127e670a | 1038 | return; |
7bd59381 | 1039 | |
1c4bf763 JK |
1040 | spin_lock(&sbi->inode_lock[type]); |
1041 | if (type != FILE_INODE || test_opt(sbi, DATA_FLUSH)) | |
10aa97c3 | 1042 | __add_dirty_inode(inode, type); |
b951a4ec | 1043 | inode_inc_dirty_pages(inode); |
1c4bf763 JK |
1044 | spin_unlock(&sbi->inode_lock[type]); |
1045 | ||
4f5e34f7 | 1046 | set_page_private_reference(&folio->page); |
5deb8267 JK |
1047 | } |
1048 | ||
4d57b86d | 1049 | void f2fs_remove_dirty_inode(struct inode *inode) |
127e670a | 1050 | { |
4081363f | 1051 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 1052 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
127e670a | 1053 | |
c227f912 CY |
1054 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1055 | !S_ISLNK(inode->i_mode)) | |
127e670a JK |
1056 | return; |
1057 | ||
10aa97c3 JK |
1058 | if (type == FILE_INODE && !test_opt(sbi, DATA_FLUSH)) |
1059 | return; | |
1060 | ||
c227f912 CY |
1061 | spin_lock(&sbi->inode_lock[type]); |
1062 | __remove_dirty_inode(inode, type); | |
1063 | spin_unlock(&sbi->inode_lock[type]); | |
74d0b917 JK |
1064 | } |
1065 | ||
4d57b86d | 1066 | int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type) |
127e670a | 1067 | { |
ce3b7d80 | 1068 | struct list_head *head; |
127e670a | 1069 | struct inode *inode; |
2710fd7e | 1070 | struct f2fs_inode_info *fi; |
4cf18537 | 1071 | bool is_dir = (type == DIR_INODE); |
4db08d01 | 1072 | unsigned long ino = 0; |
4cf18537 CY |
1073 | |
1074 | trace_f2fs_sync_dirty_inodes_enter(sbi->sb, is_dir, | |
1075 | get_pages(sbi, is_dir ? | |
1076 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
127e670a | 1077 | retry: |
9b664822 ZQ |
1078 | if (unlikely(f2fs_cp_error(sbi))) { |
1079 | trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir, | |
1080 | get_pages(sbi, is_dir ? | |
1081 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
6d5a1495 | 1082 | return -EIO; |
9b664822 | 1083 | } |
af41d3ee | 1084 | |
c227f912 | 1085 | spin_lock(&sbi->inode_lock[type]); |
ce3b7d80 | 1086 | |
c227f912 | 1087 | head = &sbi->inode_list[type]; |
127e670a | 1088 | if (list_empty(head)) { |
c227f912 | 1089 | spin_unlock(&sbi->inode_lock[type]); |
4cf18537 CY |
1090 | trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir, |
1091 | get_pages(sbi, is_dir ? | |
1092 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
6d5a1495 | 1093 | return 0; |
127e670a | 1094 | } |
939afa94 | 1095 | fi = list_first_entry(head, struct f2fs_inode_info, dirty_list); |
2710fd7e | 1096 | inode = igrab(&fi->vfs_inode); |
c227f912 | 1097 | spin_unlock(&sbi->inode_lock[type]); |
127e670a | 1098 | if (inode) { |
4db08d01 JK |
1099 | unsigned long cur_ino = inode->i_ino; |
1100 | ||
186857c5 | 1101 | F2FS_I(inode)->cp_task = current; |
b0af6d49 | 1102 | |
87d6f890 | 1103 | filemap_fdatawrite(inode->i_mapping); |
b0af6d49 | 1104 | |
186857c5 | 1105 | F2FS_I(inode)->cp_task = NULL; |
b0af6d49 | 1106 | |
127e670a | 1107 | iput(inode); |
4db08d01 | 1108 | /* We need to give cpu to another writers. */ |
2a63531a | 1109 | if (ino == cur_ino) |
4db08d01 | 1110 | cond_resched(); |
2a63531a | 1111 | else |
4db08d01 | 1112 | ino = cur_ino; |
127e670a JK |
1113 | } else { |
1114 | /* | |
1115 | * We should submit bio, since it exists several | |
1116 | * wribacking dentry pages in the freeing inode. | |
1117 | */ | |
b9109b0e | 1118 | f2fs_submit_merged_write(sbi, DATA); |
7ecebe5e | 1119 | cond_resched(); |
127e670a JK |
1120 | } |
1121 | goto retry; | |
1122 | } | |
1123 | ||
0f18b462 JK |
1124 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi) |
1125 | { | |
1126 | struct list_head *head = &sbi->inode_list[DIRTY_META]; | |
1127 | struct inode *inode; | |
1128 | struct f2fs_inode_info *fi; | |
1129 | s64 total = get_pages(sbi, F2FS_DIRTY_IMETA); | |
1130 | ||
1131 | while (total--) { | |
1132 | if (unlikely(f2fs_cp_error(sbi))) | |
1133 | return -EIO; | |
1134 | ||
1135 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
1136 | if (list_empty(head)) { | |
1137 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1138 | return 0; | |
1139 | } | |
939afa94 | 1140 | fi = list_first_entry(head, struct f2fs_inode_info, |
0f18b462 JK |
1141 | gdirty_list); |
1142 | inode = igrab(&fi->vfs_inode); | |
1143 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1144 | if (inode) { | |
18340edc JK |
1145 | sync_inode_metadata(inode, 0); |
1146 | ||
1147 | /* it's on eviction */ | |
1148 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) | |
4d57b86d | 1149 | f2fs_update_inode_page(inode); |
0f18b462 JK |
1150 | iput(inode); |
1151 | } | |
dee668c1 | 1152 | } |
0f18b462 JK |
1153 | return 0; |
1154 | } | |
1155 | ||
59c9081b YH |
1156 | static void __prepare_cp_block(struct f2fs_sb_info *sbi) |
1157 | { | |
1158 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1159 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
1160 | nid_t last_nid = nm_i->next_scan_nid; | |
1161 | ||
1162 | next_free_nid(sbi, &last_nid); | |
1163 | ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi)); | |
1164 | ckpt->valid_node_count = cpu_to_le32(valid_node_count(sbi)); | |
1165 | ckpt->valid_inode_count = cpu_to_le32(valid_inode_count(sbi)); | |
1166 | ckpt->next_free_nid = cpu_to_le32(last_nid); | |
1167 | } | |
1168 | ||
af033b2a CY |
1169 | static bool __need_flush_quota(struct f2fs_sb_info *sbi) |
1170 | { | |
db6ec53b JK |
1171 | bool ret = false; |
1172 | ||
af033b2a CY |
1173 | if (!is_journalled_quota(sbi)) |
1174 | return false; | |
db6ec53b | 1175 | |
e4544b63 | 1176 | if (!f2fs_down_write_trylock(&sbi->quota_sem)) |
a5c00422 | 1177 | return true; |
db6ec53b JK |
1178 | if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) { |
1179 | ret = false; | |
1180 | } else if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) { | |
1181 | ret = false; | |
1182 | } else if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_FLUSH)) { | |
1183 | clear_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH); | |
1184 | ret = true; | |
1185 | } else if (get_pages(sbi, F2FS_DIRTY_QDATA)) { | |
1186 | ret = true; | |
1187 | } | |
e4544b63 | 1188 | f2fs_up_write(&sbi->quota_sem); |
db6ec53b | 1189 | return ret; |
af033b2a CY |
1190 | } |
1191 | ||
0a8165d7 | 1192 | /* |
127e670a JK |
1193 | * Freeze all the FS-operations for checkpoint. |
1194 | */ | |
cf779cab | 1195 | static int block_operations(struct f2fs_sb_info *sbi) |
127e670a | 1196 | { |
127e670a JK |
1197 | struct writeback_control wbc = { |
1198 | .sync_mode = WB_SYNC_ALL, | |
1199 | .nr_to_write = LONG_MAX, | |
1200 | .for_reclaim = 0, | |
1201 | }; | |
af033b2a | 1202 | int err = 0, cnt = 0; |
c718379b | 1203 | |
34c061ad SL |
1204 | /* |
1205 | * Let's flush inline_data in dirty node pages. | |
1206 | */ | |
1207 | f2fs_flush_inline_data(sbi); | |
1208 | ||
af033b2a | 1209 | retry_flush_quotas: |
db6ec53b | 1210 | f2fs_lock_all(sbi); |
af033b2a CY |
1211 | if (__need_flush_quota(sbi)) { |
1212 | int locked; | |
1213 | ||
1214 | if (++cnt > DEFAULT_RETRY_QUOTA_FLUSH_COUNT) { | |
1215 | set_sbi_flag(sbi, SBI_QUOTA_SKIP_FLUSH); | |
db6ec53b | 1216 | set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH); |
af033b2a CY |
1217 | goto retry_flush_dents; |
1218 | } | |
db6ec53b | 1219 | f2fs_unlock_all(sbi); |
af033b2a CY |
1220 | |
1221 | /* only failed during mount/umount/freeze/quotactl */ | |
1222 | locked = down_read_trylock(&sbi->sb->s_umount); | |
1223 | f2fs_quota_sync(sbi->sb, -1); | |
1224 | if (locked) | |
1225 | up_read(&sbi->sb->s_umount); | |
af033b2a CY |
1226 | cond_resched(); |
1227 | goto retry_flush_quotas; | |
1228 | } | |
1229 | ||
1230 | retry_flush_dents: | |
127e670a | 1231 | /* write all the dirty dentry pages */ |
127e670a | 1232 | if (get_pages(sbi, F2FS_DIRTY_DENTS)) { |
e479556b | 1233 | f2fs_unlock_all(sbi); |
4d57b86d | 1234 | err = f2fs_sync_dirty_inodes(sbi, DIR_INODE); |
6d5a1495 | 1235 | if (err) |
1f5f11a3 | 1236 | return err; |
30973883 | 1237 | cond_resched(); |
af033b2a | 1238 | goto retry_flush_quotas; |
127e670a JK |
1239 | } |
1240 | ||
59c9081b YH |
1241 | /* |
1242 | * POR: we should ensure that there are no dirty node pages | |
1243 | * until finishing nat/sit flush. inode->i_blocks can be updated. | |
1244 | */ | |
e4544b63 | 1245 | f2fs_down_write(&sbi->node_change); |
59c9081b | 1246 | |
0f18b462 | 1247 | if (get_pages(sbi, F2FS_DIRTY_IMETA)) { |
e4544b63 | 1248 | f2fs_up_write(&sbi->node_change); |
0f18b462 JK |
1249 | f2fs_unlock_all(sbi); |
1250 | err = f2fs_sync_inode_meta(sbi); | |
1251 | if (err) | |
1f5f11a3 | 1252 | return err; |
30973883 | 1253 | cond_resched(); |
af033b2a | 1254 | goto retry_flush_quotas; |
0f18b462 JK |
1255 | } |
1256 | ||
39936837 | 1257 | retry_flush_nodes: |
e4544b63 | 1258 | f2fs_down_write(&sbi->node_write); |
127e670a JK |
1259 | |
1260 | if (get_pages(sbi, F2FS_DIRTY_NODES)) { | |
e4544b63 | 1261 | f2fs_up_write(&sbi->node_write); |
c29fd0c0 | 1262 | atomic_inc(&sbi->wb_sync_req[NODE]); |
4d57b86d | 1263 | err = f2fs_sync_node_pages(sbi, &wbc, false, FS_CP_NODE_IO); |
c29fd0c0 | 1264 | atomic_dec(&sbi->wb_sync_req[NODE]); |
6d5a1495 | 1265 | if (err) { |
e4544b63 | 1266 | f2fs_up_write(&sbi->node_change); |
cf779cab | 1267 | f2fs_unlock_all(sbi); |
1f5f11a3 | 1268 | return err; |
cf779cab | 1269 | } |
30973883 | 1270 | cond_resched(); |
39936837 | 1271 | goto retry_flush_nodes; |
127e670a | 1272 | } |
59c9081b YH |
1273 | |
1274 | /* | |
1275 | * sbi->node_change is used only for AIO write_begin path which produces | |
1276 | * dirty node blocks and some checkpoint values by block allocation. | |
1277 | */ | |
1278 | __prepare_cp_block(sbi); | |
e4544b63 | 1279 | f2fs_up_write(&sbi->node_change); |
cf779cab | 1280 | return err; |
127e670a JK |
1281 | } |
1282 | ||
1283 | static void unblock_operations(struct f2fs_sb_info *sbi) | |
1284 | { | |
e4544b63 | 1285 | f2fs_up_write(&sbi->node_write); |
e479556b | 1286 | f2fs_unlock_all(sbi); |
127e670a JK |
1287 | } |
1288 | ||
bf22c3cc | 1289 | void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type) |
fb51b5ef CL |
1290 | { |
1291 | DEFINE_WAIT(wait); | |
1292 | ||
1293 | for (;;) { | |
bf22c3cc | 1294 | if (!get_pages(sbi, type)) |
fb51b5ef CL |
1295 | break; |
1296 | ||
af697c0f JK |
1297 | if (unlikely(f2fs_cp_error(sbi))) |
1298 | break; | |
1299 | ||
9c30df7c JK |
1300 | if (type == F2FS_DIRTY_META) |
1301 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, | |
1302 | FS_CP_META_IO); | |
1fd28018 JK |
1303 | else if (type == F2FS_WB_CP_DATA) |
1304 | f2fs_submit_merged_write(sbi, DATA); | |
828add77 JK |
1305 | |
1306 | prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE); | |
5df7731f | 1307 | io_schedule_timeout(DEFAULT_IO_TIMEOUT); |
fb51b5ef CL |
1308 | } |
1309 | finish_wait(&sbi->cp_wait, &wait); | |
1310 | } | |
1311 | ||
e4c5d848 JK |
1312 | static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
1313 | { | |
1314 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num; | |
1315 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d1aa2453 | 1316 | unsigned long flags; |
e4c5d848 | 1317 | |
94c821fb | 1318 | if (cpc->reason & CP_UMOUNT) { |
b702c83e CY |
1319 | if (le32_to_cpu(ckpt->cp_pack_total_block_count) + |
1320 | NM_I(sbi)->nat_bits_blocks > sbi->blocks_per_seg) { | |
94c821fb CY |
1321 | clear_ckpt_flags(sbi, CP_NAT_BITS_FLAG); |
1322 | f2fs_notice(sbi, "Disable nat_bits due to no space"); | |
1323 | } else if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG) && | |
1324 | f2fs_nat_bitmap_enabled(sbi)) { | |
1325 | f2fs_enable_nat_bits(sbi); | |
1326 | set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); | |
1327 | f2fs_notice(sbi, "Rebuild and enable nat_bits"); | |
1328 | } | |
1329 | } | |
e4c5d848 | 1330 | |
94c821fb | 1331 | spin_lock_irqsave(&sbi->cp_lock, flags); |
22ad0b6a | 1332 | |
1f43e2ad CY |
1333 | if (cpc->reason & CP_TRIMMED) |
1334 | __set_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
cd36d7a1 CY |
1335 | else |
1336 | __clear_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
1f43e2ad | 1337 | |
c473f1a9 | 1338 | if (cpc->reason & CP_UMOUNT) |
e4c5d848 JK |
1339 | __set_ckpt_flags(ckpt, CP_UMOUNT_FLAG); |
1340 | else | |
1341 | __clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG); | |
1342 | ||
c473f1a9 | 1343 | if (cpc->reason & CP_FASTBOOT) |
e4c5d848 JK |
1344 | __set_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); |
1345 | else | |
1346 | __clear_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); | |
1347 | ||
1348 | if (orphan_num) | |
1349 | __set_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1350 | else | |
1351 | __clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1352 | ||
c84ef3c5 | 1353 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) |
e4c5d848 JK |
1354 | __set_ckpt_flags(ckpt, CP_FSCK_FLAG); |
1355 | ||
c84ef3c5 ST |
1356 | if (is_sbi_flag_set(sbi, SBI_IS_RESIZEFS)) |
1357 | __set_ckpt_flags(ckpt, CP_RESIZEFS_FLAG); | |
1358 | else | |
1359 | __clear_ckpt_flags(ckpt, CP_RESIZEFS_FLAG); | |
1360 | ||
4354994f DR |
1361 | if (is_sbi_flag_set(sbi, SBI_CP_DISABLED)) |
1362 | __set_ckpt_flags(ckpt, CP_DISABLED_FLAG); | |
1363 | else | |
1364 | __clear_ckpt_flags(ckpt, CP_DISABLED_FLAG); | |
1365 | ||
db610a64 JK |
1366 | if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK)) |
1367 | __set_ckpt_flags(ckpt, CP_DISABLED_QUICK_FLAG); | |
1368 | else | |
1369 | __clear_ckpt_flags(ckpt, CP_DISABLED_QUICK_FLAG); | |
1370 | ||
af033b2a CY |
1371 | if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) |
1372 | __set_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
bc88ac96 JK |
1373 | else |
1374 | __clear_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
af033b2a CY |
1375 | |
1376 | if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) | |
1377 | __set_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
1378 | ||
e4c5d848 JK |
1379 | /* set this flag to activate crc|cp_ver for recovery */ |
1380 | __set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG); | |
f2367923 | 1381 | __clear_ckpt_flags(ckpt, CP_NOCRC_RECOVERY_FLAG); |
e4c5d848 | 1382 | |
d1aa2453 | 1383 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
e4c5d848 JK |
1384 | } |
1385 | ||
46706d59 GX |
1386 | static void commit_checkpoint(struct f2fs_sb_info *sbi, |
1387 | void *src, block_t blk_addr) | |
1388 | { | |
1389 | struct writeback_control wbc = { | |
1390 | .for_reclaim = 0, | |
1391 | }; | |
1392 | ||
1393 | /* | |
1394 | * pagevec_lookup_tag and lock_page again will take | |
4d57b86d CY |
1395 | * some extra time. Therefore, f2fs_update_meta_pages and |
1396 | * f2fs_sync_meta_pages are combined in this function. | |
46706d59 | 1397 | */ |
4d57b86d | 1398 | struct page *page = f2fs_grab_meta_page(sbi, blk_addr); |
46706d59 GX |
1399 | int err; |
1400 | ||
bae0ee7a | 1401 | f2fs_wait_on_page_writeback(page, META, true, true); |
8d64d365 CY |
1402 | |
1403 | memcpy(page_address(page), src, PAGE_SIZE); | |
1404 | ||
1405 | set_page_dirty(page); | |
46706d59 GX |
1406 | if (unlikely(!clear_page_dirty_for_io(page))) |
1407 | f2fs_bug_on(sbi, 1); | |
1408 | ||
1409 | /* writeout cp pack 2 page */ | |
1410 | err = __f2fs_write_meta_page(page, &wbc, FS_CP_META_IO); | |
af697c0f JK |
1411 | if (unlikely(err && f2fs_cp_error(sbi))) { |
1412 | f2fs_put_page(page, 1); | |
1413 | return; | |
1414 | } | |
46706d59 | 1415 | |
af697c0f | 1416 | f2fs_bug_on(sbi, err); |
46706d59 GX |
1417 | f2fs_put_page(page, 0); |
1418 | ||
1419 | /* submit checkpoint (with barrier if NOBARRIER is not set) */ | |
1420 | f2fs_submit_merged_write(sbi, META_FLUSH); | |
1421 | } | |
1422 | ||
3a0a9cbc CY |
1423 | static inline u64 get_sectors_written(struct block_device *bdev) |
1424 | { | |
ff49c86f | 1425 | return (u64)part_stat_read(bdev, sectors[STAT_WRITE]); |
3a0a9cbc CY |
1426 | } |
1427 | ||
1428 | u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi) | |
1429 | { | |
1430 | if (f2fs_is_multi_device(sbi)) { | |
1431 | u64 sectors = 0; | |
1432 | int i; | |
1433 | ||
1434 | for (i = 0; i < sbi->s_ndevs; i++) | |
1435 | sectors += get_sectors_written(FDEV(i).bdev); | |
1436 | ||
1437 | return sectors; | |
1438 | } | |
1439 | ||
1440 | return get_sectors_written(sbi->sb->s_bdev); | |
1441 | } | |
1442 | ||
c34f42e2 | 1443 | static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1444 | { |
1445 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
77041823 | 1446 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
d1aa2453 | 1447 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num, flags; |
127e670a | 1448 | block_t start_blk; |
127e670a | 1449 | unsigned int data_sum_blocks, orphan_blocks; |
7e586fa0 | 1450 | __u32 crc32 = 0; |
127e670a | 1451 | int i; |
55141486 | 1452 | int cp_payload_blks = __cp_payload(sbi); |
8f1dbbbb SL |
1453 | struct curseg_info *seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); |
1454 | u64 kbytes_written; | |
1228b482 | 1455 | int err; |
127e670a JK |
1456 | |
1457 | /* Flush all the NAT/SIT pages */ | |
8ec18bff | 1458 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
127e670a | 1459 | |
7a88ddb5 | 1460 | /* start to update checkpoint, cp ver is already updated previously */ |
a1f72ac2 | 1461 | ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi, true)); |
127e670a | 1462 | ckpt->free_segment_count = cpu_to_le32(free_segments(sbi)); |
b5b82205 | 1463 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
127e670a JK |
1464 | ckpt->cur_node_segno[i] = |
1465 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE)); | |
1466 | ckpt->cur_node_blkoff[i] = | |
1467 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_NODE)); | |
1468 | ckpt->alloc_type[i + CURSEG_HOT_NODE] = | |
1469 | curseg_alloc_type(sbi, i + CURSEG_HOT_NODE); | |
1470 | } | |
b5b82205 | 1471 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { |
127e670a JK |
1472 | ckpt->cur_data_segno[i] = |
1473 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA)); | |
1474 | ckpt->cur_data_blkoff[i] = | |
1475 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_DATA)); | |
1476 | ckpt->alloc_type[i + CURSEG_HOT_DATA] = | |
1477 | curseg_alloc_type(sbi, i + CURSEG_HOT_DATA); | |
1478 | } | |
1479 | ||
a87aff1d | 1480 | /* 2 cp + n data seg summary + orphan inode blocks */ |
4d57b86d | 1481 | data_sum_blocks = f2fs_npages_for_summary_flush(sbi, false); |
d1aa2453 | 1482 | spin_lock_irqsave(&sbi->cp_lock, flags); |
b5b82205 | 1483 | if (data_sum_blocks < NR_CURSEG_DATA_TYPE) |
aaec2b1d | 1484 | __set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
127e670a | 1485 | else |
aaec2b1d | 1486 | __clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
d1aa2453 | 1487 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
127e670a | 1488 | |
67298804 | 1489 | orphan_blocks = GET_ORPHAN_BLOCKS(orphan_num); |
1dbe4152 CL |
1490 | ckpt->cp_pack_start_sum = cpu_to_le32(1 + cp_payload_blks + |
1491 | orphan_blocks); | |
127e670a | 1492 | |
119ee914 | 1493 | if (__remain_node_summaries(cpc->reason)) |
2a4bd0c3 | 1494 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
1dbe4152 CL |
1495 | cp_payload_blks + data_sum_blocks + |
1496 | orphan_blocks + NR_CURSEG_NODE_TYPE); | |
119ee914 | 1497 | else |
b5b82205 | 1498 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
1dbe4152 CL |
1499 | cp_payload_blks + data_sum_blocks + |
1500 | orphan_blocks); | |
119ee914 | 1501 | |
e4c5d848 JK |
1502 | /* update ckpt flag for checkpoint */ |
1503 | update_ckpt_flags(sbi, cpc); | |
a468f0ef | 1504 | |
127e670a JK |
1505 | /* update SIT/NAT bitmap */ |
1506 | get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP)); | |
1507 | get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP)); | |
1508 | ||
d7eb8f1c | 1509 | crc32 = f2fs_checkpoint_chksum(sbi, ckpt); |
7e586fa0 JK |
1510 | *((__le32 *)((unsigned char *)ckpt + |
1511 | le32_to_cpu(ckpt->checksum_offset))) | |
127e670a JK |
1512 | = cpu_to_le32(crc32); |
1513 | ||
8508e44a | 1514 | start_blk = __start_cp_next_addr(sbi); |
127e670a | 1515 | |
22ad0b6a | 1516 | /* write nat bits */ |
94c821fb CY |
1517 | if ((cpc->reason & CP_UMOUNT) && |
1518 | is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG)) { | |
22ad0b6a | 1519 | __u64 cp_ver = cur_cp_version(ckpt); |
22ad0b6a JK |
1520 | block_t blk; |
1521 | ||
1522 | cp_ver |= ((__u64)crc32 << 32); | |
1523 | *(__le64 *)nm_i->nat_bits = cpu_to_le64(cp_ver); | |
1524 | ||
1525 | blk = start_blk + sbi->blocks_per_seg - nm_i->nat_bits_blocks; | |
1526 | for (i = 0; i < nm_i->nat_bits_blocks; i++) | |
4d57b86d | 1527 | f2fs_update_meta_page(sbi, nm_i->nat_bits + |
22ad0b6a | 1528 | (i << F2FS_BLKSIZE_BITS), blk + i); |
22ad0b6a JK |
1529 | } |
1530 | ||
127e670a | 1531 | /* write out checkpoint buffer at block 0 */ |
4d57b86d | 1532 | f2fs_update_meta_page(sbi, ckpt, start_blk++); |
381722d2 CY |
1533 | |
1534 | for (i = 1; i < 1 + cp_payload_blks; i++) | |
4d57b86d | 1535 | f2fs_update_meta_page(sbi, (char *)ckpt + i * F2FS_BLKSIZE, |
381722d2 | 1536 | start_blk++); |
1dbe4152 | 1537 | |
67298804 | 1538 | if (orphan_num) { |
127e670a JK |
1539 | write_orphan_inodes(sbi, start_blk); |
1540 | start_blk += orphan_blocks; | |
1541 | } | |
1542 | ||
4d57b86d | 1543 | f2fs_write_data_summaries(sbi, start_blk); |
127e670a | 1544 | start_blk += data_sum_blocks; |
8f1dbbbb SL |
1545 | |
1546 | /* Record write statistics in the hot node summary */ | |
1547 | kbytes_written = sbi->kbytes_written; | |
3a0a9cbc CY |
1548 | kbytes_written += (f2fs_get_sectors_written(sbi) - |
1549 | sbi->sectors_written_start) >> 1; | |
b7ad7512 | 1550 | seg_i->journal->info.kbytes_written = cpu_to_le64(kbytes_written); |
8f1dbbbb | 1551 | |
119ee914 | 1552 | if (__remain_node_summaries(cpc->reason)) { |
4d57b86d | 1553 | f2fs_write_node_summaries(sbi, start_blk); |
127e670a JK |
1554 | start_blk += NR_CURSEG_NODE_TYPE; |
1555 | } | |
1556 | ||
46706d59 GX |
1557 | /* update user_block_counts */ |
1558 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
1559 | percpu_counter_set(&sbi->alloc_valid_block_count, 0); | |
47c8ebcc | 1560 | percpu_counter_set(&sbi->rf_node_block_count, 0); |
127e670a | 1561 | |
46706d59 | 1562 | /* Here, we have one bio having CP pack except cp pack 2 page */ |
4d57b86d | 1563 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
bf22c3cc ST |
1564 | /* Wait for all dirty meta pages to be submitted for IO */ |
1565 | f2fs_wait_on_all_pages(sbi, F2FS_DIRTY_META); | |
46706d59 GX |
1566 | |
1567 | /* wait for previous submitted meta pages writeback */ | |
bf22c3cc | 1568 | f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA); |
127e670a | 1569 | |
46706d59 GX |
1570 | /* flush all device cache */ |
1571 | err = f2fs_flush_device_cache(sbi); | |
1572 | if (err) | |
1573 | return err; | |
127e670a | 1574 | |
46706d59 GX |
1575 | /* barrier and flush checkpoint cp pack 2 page if it can */ |
1576 | commit_checkpoint(sbi, ckpt, start_blk); | |
bf22c3cc | 1577 | f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA); |
6a8f8ca5 | 1578 | |
18767e62 | 1579 | /* |
542989b6 | 1580 | * invalidate intermediate page cache borrowed from meta inode which are |
aff6fbbe | 1581 | * used for migration of encrypted, verity or compressed inode's blocks. |
18767e62 | 1582 | */ |
aff6fbbe CY |
1583 | if (f2fs_sb_has_encrypt(sbi) || f2fs_sb_has_verity(sbi) || |
1584 | f2fs_sb_has_compression(sbi)) | |
18767e62 CY |
1585 | invalidate_mapping_pages(META_MAPPING(sbi), |
1586 | MAIN_BLKADDR(sbi), MAX_BLKADDR(sbi) - 1); | |
1587 | ||
4d57b86d | 1588 | f2fs_release_ino_entry(sbi, false); |
cf779cab | 1589 | |
50fa53ec CY |
1590 | f2fs_reset_fsync_node_info(sbi); |
1591 | ||
caf0047e | 1592 | clear_sbi_flag(sbi, SBI_IS_DIRTY); |
bbf156f7 | 1593 | clear_sbi_flag(sbi, SBI_NEED_CP); |
af033b2a | 1594 | clear_sbi_flag(sbi, SBI_QUOTA_SKIP_FLUSH); |
c9c8ed50 CY |
1595 | |
1596 | spin_lock(&sbi->stat_lock); | |
4354994f | 1597 | sbi->unusable_block_count = 0; |
c9c8ed50 CY |
1598 | spin_unlock(&sbi->stat_lock); |
1599 | ||
8508e44a | 1600 | __set_cp_next_pack(sbi); |
c34f42e2 | 1601 | |
c2a080ae CY |
1602 | /* |
1603 | * redirty superblock if metadata like node page or inode cache is | |
1604 | * updated during writing checkpoint. | |
1605 | */ | |
1606 | if (get_pages(sbi, F2FS_DIRTY_NODES) || | |
1607 | get_pages(sbi, F2FS_DIRTY_IMETA)) | |
1608 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1609 | ||
1610 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_DENTS)); | |
1611 | ||
af697c0f | 1612 | return unlikely(f2fs_cp_error(sbi)) ? -EIO : 0; |
127e670a JK |
1613 | } |
1614 | ||
4d57b86d | 1615 | int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1616 | { |
1617 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1618 | unsigned long long ckpt_ver; | |
c34f42e2 | 1619 | int err = 0; |
127e670a | 1620 | |
f5a131bb CY |
1621 | if (f2fs_readonly(sbi->sb) || f2fs_hw_is_readonly(sbi)) |
1622 | return -EROFS; | |
1623 | ||
4354994f DR |
1624 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { |
1625 | if (cpc->reason != CP_PAUSE) | |
1626 | return 0; | |
dcbb4c10 | 1627 | f2fs_warn(sbi, "Start checkpoint disabled!"); |
4354994f | 1628 | } |
b4b10061 | 1629 | if (cpc->reason != CP_RESIZE) |
e4544b63 | 1630 | f2fs_down_write(&sbi->cp_global_sem); |
8501017e | 1631 | |
caf0047e | 1632 | if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) && |
c473f1a9 CY |
1633 | ((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) || |
1634 | ((cpc->reason & CP_DISCARD) && !sbi->discard_blks))) | |
8501017e | 1635 | goto out; |
c34f42e2 CY |
1636 | if (unlikely(f2fs_cp_error(sbi))) { |
1637 | err = -EIO; | |
cf779cab | 1638 | goto out; |
c34f42e2 | 1639 | } |
2bda542d WL |
1640 | |
1641 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); | |
1642 | ||
c34f42e2 CY |
1643 | err = block_operations(sbi); |
1644 | if (err) | |
cf779cab | 1645 | goto out; |
127e670a | 1646 | |
75ab4cb8 | 1647 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish block_ops"); |
2af4bd6c | 1648 | |
b9109b0e | 1649 | f2fs_flush_merged_writes(sbi); |
127e670a | 1650 | |
58cce381 | 1651 | /* this is the case of multiple fstrims without any changes */ |
c473f1a9 | 1652 | if (cpc->reason & CP_DISCARD) { |
4d57b86d | 1653 | if (!f2fs_exist_trim_candidates(sbi, cpc)) { |
25290fa5 JK |
1654 | unblock_operations(sbi); |
1655 | goto out; | |
1656 | } | |
1657 | ||
a95ba66a | 1658 | if (NM_I(sbi)->nat_cnt[DIRTY_NAT] == 0 && |
0333ad4e JK |
1659 | SIT_I(sbi)->dirty_sentries == 0 && |
1660 | prefree_segments(sbi) == 0) { | |
4d57b86d CY |
1661 | f2fs_flush_sit_entries(sbi, cpc); |
1662 | f2fs_clear_prefree_segments(sbi, cpc); | |
0333ad4e JK |
1663 | unblock_operations(sbi); |
1664 | goto out; | |
1665 | } | |
58cce381 YH |
1666 | } |
1667 | ||
127e670a JK |
1668 | /* |
1669 | * update checkpoint pack index | |
1670 | * Increase the version number so that | |
1671 | * SIT entries and seg summaries are written at correct place | |
1672 | */ | |
d71b5564 | 1673 | ckpt_ver = cur_cp_version(ckpt); |
127e670a JK |
1674 | ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver); |
1675 | ||
1676 | /* write cached NAT/SIT entries to NAT/SIT area */ | |
edc55aaf | 1677 | err = f2fs_flush_nat_entries(sbi, cpc); |
91803392 CY |
1678 | if (err) { |
1679 | f2fs_err(sbi, "f2fs_flush_nat_entries failed err:%d, stop checkpoint", err); | |
1680 | f2fs_bug_on(sbi, !f2fs_cp_error(sbi)); | |
edc55aaf | 1681 | goto stop; |
91803392 | 1682 | } |
edc55aaf | 1683 | |
4d57b86d | 1684 | f2fs_flush_sit_entries(sbi, cpc); |
127e670a | 1685 | |
d0b9e42a | 1686 | /* save inmem log status */ |
093749e2 | 1687 | f2fs_save_inmem_curseg(sbi); |
d0b9e42a | 1688 | |
c34f42e2 | 1689 | err = do_checkpoint(sbi, cpc); |
91803392 CY |
1690 | if (err) { |
1691 | f2fs_err(sbi, "do_checkpoint failed err:%d, stop checkpoint", err); | |
1692 | f2fs_bug_on(sbi, !f2fs_cp_error(sbi)); | |
4d57b86d | 1693 | f2fs_release_discard_addrs(sbi); |
91803392 | 1694 | } else { |
4d57b86d | 1695 | f2fs_clear_prefree_segments(sbi, cpc); |
91803392 | 1696 | } |
d0b9e42a | 1697 | |
093749e2 | 1698 | f2fs_restore_inmem_curseg(sbi); |
edc55aaf | 1699 | stop: |
127e670a | 1700 | unblock_operations(sbi); |
942e0be6 | 1701 | stat_inc_cp_count(sbi->stat_info); |
10027551 | 1702 | |
c473f1a9 | 1703 | if (cpc->reason & CP_RECOVERY) |
dcbb4c10 | 1704 | f2fs_notice(sbi, "checkpoint: version = %llx", ckpt_ver); |
60b99b48 | 1705 | |
7a88ddb5 | 1706 | /* update CP_TIME to trigger checkpoint periodically */ |
6beceb54 | 1707 | f2fs_update_time(sbi, CP_TIME); |
55d1cdb2 | 1708 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint"); |
8501017e | 1709 | out: |
b4b10061 | 1710 | if (cpc->reason != CP_RESIZE) |
e4544b63 | 1711 | f2fs_up_write(&sbi->cp_global_sem); |
c34f42e2 | 1712 | return err; |
127e670a JK |
1713 | } |
1714 | ||
4d57b86d | 1715 | void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi) |
127e670a | 1716 | { |
6451e041 JK |
1717 | int i; |
1718 | ||
1719 | for (i = 0; i < MAX_INO_ENTRY; i++) { | |
67298804 CY |
1720 | struct inode_management *im = &sbi->im[i]; |
1721 | ||
1722 | INIT_RADIX_TREE(&im->ino_root, GFP_ATOMIC); | |
1723 | spin_lock_init(&im->ino_lock); | |
1724 | INIT_LIST_HEAD(&im->ino_list); | |
1725 | im->ino_num = 0; | |
6451e041 JK |
1726 | } |
1727 | ||
b5b82205 | 1728 | sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS - |
d0b9e42a | 1729 | NR_CURSEG_PERSIST_TYPE - __cp_payload(sbi)) * |
14b42817 | 1730 | F2FS_ORPHANS_PER_BLOCK; |
127e670a JK |
1731 | } |
1732 | ||
4d57b86d | 1733 | int __init f2fs_create_checkpoint_caches(void) |
127e670a | 1734 | { |
6451e041 JK |
1735 | ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry", |
1736 | sizeof(struct ino_entry)); | |
1737 | if (!ino_entry_slab) | |
127e670a | 1738 | return -ENOMEM; |
4d57b86d | 1739 | f2fs_inode_entry_slab = f2fs_kmem_cache_create("f2fs_inode_entry", |
06292073 | 1740 | sizeof(struct inode_entry)); |
4d57b86d | 1741 | if (!f2fs_inode_entry_slab) { |
6451e041 | 1742 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1743 | return -ENOMEM; |
1744 | } | |
1745 | return 0; | |
1746 | } | |
1747 | ||
4d57b86d | 1748 | void f2fs_destroy_checkpoint_caches(void) |
127e670a | 1749 | { |
6451e041 | 1750 | kmem_cache_destroy(ino_entry_slab); |
4d57b86d | 1751 | kmem_cache_destroy(f2fs_inode_entry_slab); |
127e670a | 1752 | } |
261eeb9c DJ |
1753 | |
1754 | static int __write_checkpoint_sync(struct f2fs_sb_info *sbi) | |
1755 | { | |
1756 | struct cp_control cpc = { .reason = CP_SYNC, }; | |
1757 | int err; | |
1758 | ||
e4544b63 | 1759 | f2fs_down_write(&sbi->gc_lock); |
261eeb9c | 1760 | err = f2fs_write_checkpoint(sbi, &cpc); |
e4544b63 | 1761 | f2fs_up_write(&sbi->gc_lock); |
261eeb9c DJ |
1762 | |
1763 | return err; | |
1764 | } | |
1765 | ||
1766 | static void __checkpoint_and_complete_reqs(struct f2fs_sb_info *sbi) | |
1767 | { | |
1768 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1769 | struct ckpt_req *req, *next; | |
1770 | struct llist_node *dispatch_list; | |
1771 | u64 sum_diff = 0, diff, count = 0; | |
1772 | int ret; | |
1773 | ||
1774 | dispatch_list = llist_del_all(&cprc->issue_list); | |
1775 | if (!dispatch_list) | |
1776 | return; | |
1777 | dispatch_list = llist_reverse_order(dispatch_list); | |
1778 | ||
1779 | ret = __write_checkpoint_sync(sbi); | |
1780 | atomic_inc(&cprc->issued_ckpt); | |
1781 | ||
1782 | llist_for_each_entry_safe(req, next, dispatch_list, llnode) { | |
1783 | diff = (u64)ktime_ms_delta(ktime_get(), req->queue_time); | |
1784 | req->ret = ret; | |
1785 | complete(&req->wait); | |
1786 | ||
1787 | sum_diff += diff; | |
1788 | count++; | |
1789 | } | |
1790 | atomic_sub(count, &cprc->queued_ckpt); | |
1791 | atomic_add(count, &cprc->total_ckpt); | |
1792 | ||
1793 | spin_lock(&cprc->stat_lock); | |
1794 | cprc->cur_time = (unsigned int)div64_u64(sum_diff, count); | |
1795 | if (cprc->peak_time < cprc->cur_time) | |
1796 | cprc->peak_time = cprc->cur_time; | |
1797 | spin_unlock(&cprc->stat_lock); | |
1798 | } | |
1799 | ||
1800 | static int issue_checkpoint_thread(void *data) | |
1801 | { | |
1802 | struct f2fs_sb_info *sbi = data; | |
1803 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1804 | wait_queue_head_t *q = &cprc->ckpt_wait_queue; | |
1805 | repeat: | |
1806 | if (kthread_should_stop()) | |
1807 | return 0; | |
1808 | ||
261eeb9c DJ |
1809 | if (!llist_empty(&cprc->issue_list)) |
1810 | __checkpoint_and_complete_reqs(sbi); | |
1811 | ||
261eeb9c DJ |
1812 | wait_event_interruptible(*q, |
1813 | kthread_should_stop() || !llist_empty(&cprc->issue_list)); | |
1814 | goto repeat; | |
1815 | } | |
1816 | ||
1817 | static void flush_remained_ckpt_reqs(struct f2fs_sb_info *sbi, | |
1818 | struct ckpt_req *wait_req) | |
1819 | { | |
1820 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1821 | ||
1822 | if (!llist_empty(&cprc->issue_list)) { | |
1823 | __checkpoint_and_complete_reqs(sbi); | |
1824 | } else { | |
1825 | /* already dispatched by issue_checkpoint_thread */ | |
1826 | if (wait_req) | |
1827 | wait_for_completion(&wait_req->wait); | |
1828 | } | |
1829 | } | |
1830 | ||
1831 | static void init_ckpt_req(struct ckpt_req *req) | |
1832 | { | |
1833 | memset(req, 0, sizeof(struct ckpt_req)); | |
1834 | ||
1835 | init_completion(&req->wait); | |
1836 | req->queue_time = ktime_get(); | |
1837 | } | |
1838 | ||
1839 | int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi) | |
1840 | { | |
1841 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1842 | struct ckpt_req req; | |
1843 | struct cp_control cpc; | |
1844 | ||
1845 | cpc.reason = __get_cp_reason(sbi); | |
1846 | if (!test_opt(sbi, MERGE_CHECKPOINT) || cpc.reason != CP_SYNC) { | |
1847 | int ret; | |
1848 | ||
e4544b63 | 1849 | f2fs_down_write(&sbi->gc_lock); |
261eeb9c | 1850 | ret = f2fs_write_checkpoint(sbi, &cpc); |
e4544b63 | 1851 | f2fs_up_write(&sbi->gc_lock); |
261eeb9c DJ |
1852 | |
1853 | return ret; | |
1854 | } | |
1855 | ||
1856 | if (!cprc->f2fs_issue_ckpt) | |
1857 | return __write_checkpoint_sync(sbi); | |
1858 | ||
1859 | init_ckpt_req(&req); | |
1860 | ||
1861 | llist_add(&req.llnode, &cprc->issue_list); | |
1862 | atomic_inc(&cprc->queued_ckpt); | |
1863 | ||
3b42c741 CY |
1864 | /* |
1865 | * update issue_list before we wake up issue_checkpoint thread, | |
1866 | * this smp_mb() pairs with another barrier in ___wait_event(), | |
1867 | * see more details in comments of waitqueue_active(). | |
1868 | */ | |
261eeb9c DJ |
1869 | smp_mb(); |
1870 | ||
1871 | if (waitqueue_active(&cprc->ckpt_wait_queue)) | |
1872 | wake_up(&cprc->ckpt_wait_queue); | |
1873 | ||
1874 | if (cprc->f2fs_issue_ckpt) | |
1875 | wait_for_completion(&req.wait); | |
1876 | else | |
1877 | flush_remained_ckpt_reqs(sbi, &req); | |
1878 | ||
1879 | return req.ret; | |
1880 | } | |
1881 | ||
1882 | int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi) | |
1883 | { | |
1884 | dev_t dev = sbi->sb->s_bdev->bd_dev; | |
1885 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1886 | ||
1887 | if (cprc->f2fs_issue_ckpt) | |
1888 | return 0; | |
1889 | ||
1890 | cprc->f2fs_issue_ckpt = kthread_run(issue_checkpoint_thread, sbi, | |
1891 | "f2fs_ckpt-%u:%u", MAJOR(dev), MINOR(dev)); | |
1892 | if (IS_ERR(cprc->f2fs_issue_ckpt)) { | |
1893 | cprc->f2fs_issue_ckpt = NULL; | |
1894 | return -ENOMEM; | |
1895 | } | |
1896 | ||
e6592066 | 1897 | set_task_ioprio(cprc->f2fs_issue_ckpt, cprc->ckpt_thread_ioprio); |
261eeb9c DJ |
1898 | |
1899 | return 0; | |
1900 | } | |
1901 | ||
1902 | void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi) | |
1903 | { | |
1904 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1905 | ||
1906 | if (cprc->f2fs_issue_ckpt) { | |
1907 | struct task_struct *ckpt_task = cprc->f2fs_issue_ckpt; | |
1908 | ||
1909 | cprc->f2fs_issue_ckpt = NULL; | |
1910 | kthread_stop(ckpt_task); | |
1911 | ||
1912 | flush_remained_ckpt_reqs(sbi, NULL); | |
1913 | } | |
1914 | } | |
1915 | ||
1916 | void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi) | |
1917 | { | |
1918 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1919 | ||
1920 | atomic_set(&cprc->issued_ckpt, 0); | |
1921 | atomic_set(&cprc->total_ckpt, 0); | |
1922 | atomic_set(&cprc->queued_ckpt, 0); | |
e6592066 | 1923 | cprc->ckpt_thread_ioprio = DEFAULT_CHECKPOINT_IOPRIO; |
261eeb9c DJ |
1924 | init_waitqueue_head(&cprc->ckpt_wait_queue); |
1925 | init_llist_head(&cprc->issue_list); | |
1926 | spin_lock_init(&cprc->stat_lock); | |
1927 | } |