]>
Commit | Line | Data |
---|---|---|
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))) { |
a7b8618a | 101 | f2fs_handle_page_eio(sbi, page->index, META); |
7735730d CY |
102 | f2fs_put_page(page, 1); |
103 | return ERR_PTR(-EIO); | |
81114baa | 104 | } |
393ff91f | 105 | out: |
127e670a JK |
106 | return page; |
107 | } | |
108 | ||
4d57b86d | 109 | struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
2b947003 CY |
110 | { |
111 | return __get_meta_page(sbi, index, true); | |
112 | } | |
113 | ||
86f33603 | 114 | struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index) |
7735730d CY |
115 | { |
116 | struct page *page; | |
117 | int count = 0; | |
118 | ||
119 | retry: | |
120 | page = __get_meta_page(sbi, index, true); | |
121 | if (IS_ERR(page)) { | |
122 | if (PTR_ERR(page) == -EIO && | |
123 | ++count <= DEFAULT_RETRY_IO_COUNT) | |
124 | goto retry; | |
7735730d | 125 | f2fs_stop_checkpoint(sbi, false); |
7735730d | 126 | } |
7735730d CY |
127 | return page; |
128 | } | |
129 | ||
2b947003 | 130 | /* for POR only */ |
4d57b86d | 131 | struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index) |
2b947003 CY |
132 | { |
133 | return __get_meta_page(sbi, index, false); | |
134 | } | |
135 | ||
93770ab7 CY |
136 | static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr, |
137 | int type) | |
138 | { | |
139 | struct seg_entry *se; | |
140 | unsigned int segno, offset; | |
141 | bool exist; | |
142 | ||
143 | if (type != DATA_GENERIC_ENHANCE && type != DATA_GENERIC_ENHANCE_READ) | |
144 | return true; | |
145 | ||
146 | segno = GET_SEGNO(sbi, blkaddr); | |
147 | offset = GET_BLKOFF_FROM_SEG0(sbi, blkaddr); | |
148 | se = get_seg_entry(sbi, segno); | |
149 | ||
150 | exist = f2fs_test_bit(offset, se->cur_valid_map); | |
151 | if (!exist && type == DATA_GENERIC_ENHANCE) { | |
dcbb4c10 JP |
152 | f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d", |
153 | blkaddr, exist); | |
93770ab7 | 154 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
dc2f78e2 | 155 | dump_stack(); |
93770ab7 CY |
156 | } |
157 | return exist; | |
158 | } | |
159 | ||
e1da7872 | 160 | bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, |
4d57b86d | 161 | block_t blkaddr, int type) |
662befda CY |
162 | { |
163 | switch (type) { | |
164 | case META_NAT: | |
66b00c18 | 165 | break; |
662befda | 166 | case META_SIT: |
66b00c18 CY |
167 | if (unlikely(blkaddr >= SIT_BLK_CNT(sbi))) |
168 | return false; | |
169 | break; | |
81c1a0f1 | 170 | case META_SSA: |
66b00c18 CY |
171 | if (unlikely(blkaddr >= MAIN_BLKADDR(sbi) || |
172 | blkaddr < SM_I(sbi)->ssa_blkaddr)) | |
173 | return false; | |
174 | break; | |
662befda | 175 | case META_CP: |
66b00c18 CY |
176 | if (unlikely(blkaddr >= SIT_I(sbi)->sit_base_addr || |
177 | blkaddr < __start_cp_addr(sbi))) | |
178 | return false; | |
179 | break; | |
4c521f49 | 180 | case META_POR: |
93770ab7 CY |
181 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
182 | blkaddr < MAIN_BLKADDR(sbi))) | |
183 | return false; | |
184 | break; | |
e1da7872 | 185 | case DATA_GENERIC: |
93770ab7 CY |
186 | case DATA_GENERIC_ENHANCE: |
187 | case DATA_GENERIC_ENHANCE_READ: | |
66b00c18 | 188 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
93770ab7 | 189 | blkaddr < MAIN_BLKADDR(sbi))) { |
dcbb4c10 JP |
190 | f2fs_warn(sbi, "access invalid blkaddr:%u", |
191 | blkaddr); | |
93770ab7 | 192 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
dc2f78e2 | 193 | dump_stack(); |
66b00c18 | 194 | return false; |
93770ab7 CY |
195 | } else { |
196 | return __is_bitmap_valid(sbi, blkaddr, type); | |
c9b60788 | 197 | } |
66b00c18 | 198 | break; |
e1da7872 CY |
199 | case META_GENERIC: |
200 | if (unlikely(blkaddr < SEG0_BLKADDR(sbi) || | |
201 | blkaddr >= MAIN_BLKADDR(sbi))) | |
202 | return false; | |
203 | break; | |
662befda CY |
204 | default: |
205 | BUG(); | |
206 | } | |
66b00c18 CY |
207 | |
208 | return true; | |
662befda CY |
209 | } |
210 | ||
211 | /* | |
7a88ddb5 | 212 | * Readahead CP/NAT/SIT/SSA/POR pages |
662befda | 213 | */ |
4d57b86d | 214 | int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, |
26879fb1 | 215 | int type, bool sync) |
662befda | 216 | { |
662befda | 217 | struct page *page; |
4c521f49 | 218 | block_t blkno = start; |
662befda | 219 | struct f2fs_io_info fio = { |
05ca3632 | 220 | .sbi = sbi, |
662befda | 221 | .type = META, |
04d328de | 222 | .op = REQ_OP_READ, |
70fd7614 | 223 | .op_flags = sync ? (REQ_META | REQ_PRIO) : REQ_RAHEAD, |
4375a336 | 224 | .encrypted_page = NULL, |
fb830fc5 | 225 | .in_list = false, |
6dc3a126 | 226 | .is_por = (type == META_POR), |
662befda | 227 | }; |
e9f5b8b8 | 228 | struct blk_plug plug; |
ce4c638c | 229 | int err; |
662befda | 230 | |
2b947003 | 231 | if (unlikely(type == META_POR)) |
04d328de | 232 | fio.op_flags &= ~REQ_META; |
2b947003 | 233 | |
e9f5b8b8 | 234 | blk_start_plug(&plug); |
662befda | 235 | for (; nrpages-- > 0; blkno++) { |
662befda | 236 | |
e1da7872 | 237 | if (!f2fs_is_valid_blkaddr(sbi, blkno, type)) |
66b00c18 CY |
238 | goto out; |
239 | ||
662befda CY |
240 | switch (type) { |
241 | case META_NAT: | |
66b00c18 CY |
242 | if (unlikely(blkno >= |
243 | NAT_BLOCK_OFFSET(NM_I(sbi)->max_nid))) | |
662befda | 244 | blkno = 0; |
66b00c18 | 245 | /* get nat block addr */ |
7a9d7548 | 246 | fio.new_blkaddr = current_nat_addr(sbi, |
662befda CY |
247 | blkno * NAT_ENTRY_PER_BLOCK); |
248 | break; | |
249 | case META_SIT: | |
6a257471 CY |
250 | if (unlikely(blkno >= TOTAL_SEGS(sbi))) |
251 | goto out; | |
662befda | 252 | /* get sit block addr */ |
7a9d7548 | 253 | fio.new_blkaddr = current_sit_addr(sbi, |
662befda | 254 | blkno * SIT_ENTRY_PER_BLOCK); |
662befda | 255 | break; |
81c1a0f1 | 256 | case META_SSA: |
662befda | 257 | case META_CP: |
4c521f49 | 258 | case META_POR: |
7a9d7548 | 259 | fio.new_blkaddr = blkno; |
662befda CY |
260 | break; |
261 | default: | |
262 | BUG(); | |
263 | } | |
264 | ||
300e129c JK |
265 | page = f2fs_grab_cache_page(META_MAPPING(sbi), |
266 | fio.new_blkaddr, false); | |
662befda CY |
267 | if (!page) |
268 | continue; | |
269 | if (PageUptodate(page)) { | |
662befda CY |
270 | f2fs_put_page(page, 1); |
271 | continue; | |
272 | } | |
273 | ||
05ca3632 | 274 | fio.page = page; |
ce4c638c CY |
275 | err = f2fs_submit_page_bio(&fio); |
276 | f2fs_put_page(page, err ? 1 : 0); | |
8b83ac81 CY |
277 | |
278 | if (!err) | |
279 | f2fs_update_iostat(sbi, FS_META_READ_IO, F2FS_BLKSIZE); | |
662befda CY |
280 | } |
281 | out: | |
e9f5b8b8 | 282 | blk_finish_plug(&plug); |
662befda CY |
283 | return blkno - start; |
284 | } | |
285 | ||
430f163b CY |
286 | void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index, |
287 | unsigned int ra_blocks) | |
635aee1f CY |
288 | { |
289 | struct page *page; | |
290 | bool readahead = false; | |
291 | ||
430f163b CY |
292 | if (ra_blocks == RECOVERY_MIN_RA_BLOCKS) |
293 | return; | |
294 | ||
635aee1f | 295 | page = find_get_page(META_MAPPING(sbi), index); |
4da7bf5a | 296 | if (!page || !PageUptodate(page)) |
635aee1f CY |
297 | readahead = true; |
298 | f2fs_put_page(page, 0); | |
299 | ||
300 | if (readahead) | |
430f163b | 301 | f2fs_ra_meta_pages(sbi, index, ra_blocks, META_POR, true); |
635aee1f CY |
302 | } |
303 | ||
b0af6d49 CY |
304 | static int __f2fs_write_meta_page(struct page *page, |
305 | struct writeback_control *wbc, | |
306 | enum iostat_type io_type) | |
127e670a | 307 | { |
4081363f | 308 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
127e670a | 309 | |
ecda0de3 CY |
310 | trace_f2fs_writepage(page, META); |
311 | ||
af697c0f JK |
312 | if (unlikely(f2fs_cp_error(sbi))) |
313 | goto redirty_out; | |
caf0047e | 314 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
cfb271d4 | 315 | goto redirty_out; |
857dc4e0 | 316 | if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0)) |
cfb271d4 | 317 | goto redirty_out; |
127e670a | 318 | |
4d57b86d | 319 | f2fs_do_write_meta_page(sbi, page, io_type); |
577e3495 | 320 | dec_page_count(sbi, F2FS_DIRTY_META); |
0c3a5797 CY |
321 | |
322 | if (wbc->for_reclaim) | |
bab475c5 | 323 | f2fs_submit_merged_write_cond(sbi, NULL, page, 0, META); |
0c3a5797 | 324 | |
577e3495 | 325 | unlock_page(page); |
857dc4e0 | 326 | |
0c3a5797 | 327 | if (unlikely(f2fs_cp_error(sbi))) |
b9109b0e | 328 | f2fs_submit_merged_write(sbi, META); |
0c3a5797 | 329 | |
577e3495 | 330 | return 0; |
cfb271d4 CY |
331 | |
332 | redirty_out: | |
76f60268 | 333 | redirty_page_for_writepage(wbc, page); |
cfb271d4 | 334 | return AOP_WRITEPAGE_ACTIVATE; |
127e670a JK |
335 | } |
336 | ||
b0af6d49 CY |
337 | static int f2fs_write_meta_page(struct page *page, |
338 | struct writeback_control *wbc) | |
339 | { | |
340 | return __f2fs_write_meta_page(page, wbc, FS_META_IO); | |
341 | } | |
342 | ||
127e670a JK |
343 | static int f2fs_write_meta_pages(struct address_space *mapping, |
344 | struct writeback_control *wbc) | |
345 | { | |
4081363f | 346 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
50c8cdb3 | 347 | long diff, written; |
127e670a | 348 | |
0771fcc7 CY |
349 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
350 | goto skip_write; | |
351 | ||
5459aa97 | 352 | /* collect a number of dirty meta pages and write together */ |
812a9597 JK |
353 | if (wbc->sync_mode != WB_SYNC_ALL && |
354 | get_pages(sbi, F2FS_DIRTY_META) < | |
355 | nr_pages_to_skip(sbi, META)) | |
d3baf95d | 356 | goto skip_write; |
127e670a | 357 | |
a29d0e0b | 358 | /* if locked failed, cp will flush dirty pages instead */ |
e4544b63 | 359 | if (!f2fs_down_write_trylock(&sbi->cp_global_sem)) |
a29d0e0b | 360 | goto skip_write; |
d31c7c3f | 361 | |
a29d0e0b | 362 | trace_f2fs_writepages(mapping->host, wbc, META); |
50c8cdb3 | 363 | diff = nr_pages_to_write(sbi, META, wbc); |
4d57b86d | 364 | written = f2fs_sync_meta_pages(sbi, META, wbc->nr_to_write, FS_META_IO); |
e4544b63 | 365 | f2fs_up_write(&sbi->cp_global_sem); |
50c8cdb3 | 366 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff); |
127e670a | 367 | return 0; |
d3baf95d JK |
368 | |
369 | skip_write: | |
370 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META); | |
d31c7c3f | 371 | trace_f2fs_writepages(mapping->host, wbc, META); |
d3baf95d | 372 | return 0; |
127e670a JK |
373 | } |
374 | ||
4d57b86d | 375 | long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, |
b0af6d49 | 376 | long nr_to_write, enum iostat_type io_type) |
127e670a | 377 | { |
9df27d98 | 378 | struct address_space *mapping = META_MAPPING(sbi); |
028a63a6 | 379 | pgoff_t index = 0, prev = ULONG_MAX; |
127e670a JK |
380 | struct pagevec pvec; |
381 | long nwritten = 0; | |
028a63a6 | 382 | int nr_pages; |
127e670a JK |
383 | struct writeback_control wbc = { |
384 | .for_reclaim = 0, | |
385 | }; | |
e9f5b8b8 | 386 | struct blk_plug plug; |
127e670a | 387 | |
86679820 | 388 | pagevec_init(&pvec); |
127e670a | 389 | |
e9f5b8b8 CY |
390 | blk_start_plug(&plug); |
391 | ||
028a63a6 | 392 | while ((nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, |
67fd707f | 393 | PAGECACHE_TAG_DIRTY))) { |
028a63a6 | 394 | int i; |
127e670a JK |
395 | |
396 | for (i = 0; i < nr_pages; i++) { | |
397 | struct page *page = pvec.pages[i]; | |
203681f6 | 398 | |
80dd9c0e | 399 | if (prev == ULONG_MAX) |
6066d8cd JK |
400 | prev = page->index - 1; |
401 | if (nr_to_write != LONG_MAX && page->index != prev + 1) { | |
402 | pagevec_release(&pvec); | |
403 | goto stop; | |
404 | } | |
405 | ||
127e670a | 406 | lock_page(page); |
203681f6 JK |
407 | |
408 | if (unlikely(page->mapping != mapping)) { | |
409 | continue_unlock: | |
410 | unlock_page(page); | |
411 | continue; | |
412 | } | |
413 | if (!PageDirty(page)) { | |
414 | /* someone wrote it for us */ | |
415 | goto continue_unlock; | |
416 | } | |
417 | ||
bae0ee7a | 418 | f2fs_wait_on_page_writeback(page, META, true, true); |
fa3d2bdf | 419 | |
203681f6 JK |
420 | if (!clear_page_dirty_for_io(page)) |
421 | goto continue_unlock; | |
422 | ||
b0af6d49 | 423 | if (__f2fs_write_meta_page(page, &wbc, io_type)) { |
577e3495 JK |
424 | unlock_page(page); |
425 | break; | |
426 | } | |
cfb271d4 | 427 | nwritten++; |
6066d8cd | 428 | prev = page->index; |
cfb271d4 | 429 | if (unlikely(nwritten >= nr_to_write)) |
127e670a JK |
430 | break; |
431 | } | |
432 | pagevec_release(&pvec); | |
433 | cond_resched(); | |
434 | } | |
6066d8cd | 435 | stop: |
127e670a | 436 | if (nwritten) |
b9109b0e | 437 | f2fs_submit_merged_write(sbi, type); |
127e670a | 438 | |
e9f5b8b8 CY |
439 | blk_finish_plug(&plug); |
440 | ||
127e670a JK |
441 | return nwritten; |
442 | } | |
443 | ||
1d9ac659 MWO |
444 | static bool f2fs_dirty_meta_folio(struct address_space *mapping, |
445 | struct folio *folio) | |
127e670a | 446 | { |
1d9ac659 MWO |
447 | trace_f2fs_set_page_dirty(&folio->page, META); |
448 | ||
449 | if (!folio_test_uptodate(folio)) | |
450 | folio_mark_uptodate(folio); | |
451 | if (!folio_test_dirty(folio)) { | |
452 | filemap_dirty_folio(mapping, folio); | |
29c87793 | 453 | inc_page_count(F2FS_M_SB(mapping), F2FS_DIRTY_META); |
1d9ac659 MWO |
454 | set_page_private_reference(&folio->page); |
455 | return true; | |
127e670a | 456 | } |
1d9ac659 | 457 | return false; |
127e670a JK |
458 | } |
459 | ||
460 | const struct address_space_operations f2fs_meta_aops = { | |
461 | .writepage = f2fs_write_meta_page, | |
462 | .writepages = f2fs_write_meta_pages, | |
1d9ac659 | 463 | .dirty_folio = f2fs_dirty_meta_folio, |
91503996 | 464 | .invalidate_folio = f2fs_invalidate_folio, |
c26cd045 | 465 | .release_folio = f2fs_release_folio, |
1d5b9bd6 | 466 | .migrate_folio = filemap_migrate_folio, |
127e670a JK |
467 | }; |
468 | ||
39d787be CY |
469 | static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, |
470 | unsigned int devidx, int type) | |
953e6cc6 | 471 | { |
67298804 | 472 | struct inode_management *im = &sbi->im[type]; |
4b106518 | 473 | struct ino_entry *e = NULL, *new = NULL; |
80c54505 | 474 | |
4b106518 CY |
475 | if (type == FLUSH_INO) { |
476 | rcu_read_lock(); | |
477 | e = radix_tree_lookup(&im->ino_root, ino); | |
478 | rcu_read_unlock(); | |
479 | } | |
480 | ||
481 | retry: | |
482 | if (!e) | |
32410577 CY |
483 | new = f2fs_kmem_cache_alloc(ino_entry_slab, |
484 | GFP_NOFS, true, NULL); | |
19526d74 | 485 | |
80c54505 | 486 | radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); |
769ec6e5 | 487 | |
67298804 | 488 | spin_lock(&im->ino_lock); |
67298804 | 489 | e = radix_tree_lookup(&im->ino_root, ino); |
39efac41 | 490 | if (!e) { |
4b106518 CY |
491 | if (!new) { |
492 | spin_unlock(&im->ino_lock); | |
493 | goto retry; | |
494 | } | |
495 | e = new; | |
19526d74 CY |
496 | if (unlikely(radix_tree_insert(&im->ino_root, ino, e))) |
497 | f2fs_bug_on(sbi, 1); | |
498 | ||
39efac41 JK |
499 | memset(e, 0, sizeof(struct ino_entry)); |
500 | e->ino = ino; | |
953e6cc6 | 501 | |
67298804 | 502 | list_add_tail(&e->list, &im->ino_list); |
8c402946 | 503 | if (type != ORPHAN_INO) |
67298804 | 504 | im->ino_num++; |
39efac41 | 505 | } |
39d787be CY |
506 | |
507 | if (type == FLUSH_INO) | |
508 | f2fs_set_bit(devidx, (char *)&e->dirty_device); | |
509 | ||
67298804 | 510 | spin_unlock(&im->ino_lock); |
769ec6e5 | 511 | radix_tree_preload_end(); |
80c54505 | 512 | |
4b106518 CY |
513 | if (new && e != new) |
514 | kmem_cache_free(ino_entry_slab, new); | |
953e6cc6 JK |
515 | } |
516 | ||
6451e041 | 517 | static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
953e6cc6 | 518 | { |
67298804 | 519 | struct inode_management *im = &sbi->im[type]; |
6451e041 | 520 | struct ino_entry *e; |
953e6cc6 | 521 | |
67298804 CY |
522 | spin_lock(&im->ino_lock); |
523 | e = radix_tree_lookup(&im->ino_root, ino); | |
39efac41 JK |
524 | if (e) { |
525 | list_del(&e->list); | |
67298804 CY |
526 | radix_tree_delete(&im->ino_root, ino); |
527 | im->ino_num--; | |
528 | spin_unlock(&im->ino_lock); | |
39efac41 JK |
529 | kmem_cache_free(ino_entry_slab, e); |
530 | return; | |
953e6cc6 | 531 | } |
67298804 | 532 | spin_unlock(&im->ino_lock); |
953e6cc6 JK |
533 | } |
534 | ||
4d57b86d | 535 | void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
536 | { |
537 | /* add new dirty ino entry into list */ | |
39d787be | 538 | __add_ino_entry(sbi, ino, 0, type); |
fff04f90 JK |
539 | } |
540 | ||
4d57b86d | 541 | void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
542 | { |
543 | /* remove dirty ino entry from list */ | |
544 | __remove_ino_entry(sbi, ino, type); | |
545 | } | |
546 | ||
1f07cc58 | 547 | /* mode should be APPEND_INO, UPDATE_INO or TRANS_DIR_INO */ |
4d57b86d | 548 | bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode) |
fff04f90 | 549 | { |
67298804 | 550 | struct inode_management *im = &sbi->im[mode]; |
fff04f90 | 551 | struct ino_entry *e; |
67298804 CY |
552 | |
553 | spin_lock(&im->ino_lock); | |
554 | e = radix_tree_lookup(&im->ino_root, ino); | |
555 | spin_unlock(&im->ino_lock); | |
fff04f90 JK |
556 | return e ? true : false; |
557 | } | |
558 | ||
4d57b86d | 559 | void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all) |
fff04f90 JK |
560 | { |
561 | struct ino_entry *e, *tmp; | |
562 | int i; | |
563 | ||
39d787be | 564 | for (i = all ? ORPHAN_INO : APPEND_INO; i < MAX_INO_ENTRY; i++) { |
67298804 CY |
565 | struct inode_management *im = &sbi->im[i]; |
566 | ||
567 | spin_lock(&im->ino_lock); | |
568 | list_for_each_entry_safe(e, tmp, &im->ino_list, list) { | |
fff04f90 | 569 | list_del(&e->list); |
67298804 | 570 | radix_tree_delete(&im->ino_root, e->ino); |
fff04f90 | 571 | kmem_cache_free(ino_entry_slab, e); |
67298804 | 572 | im->ino_num--; |
fff04f90 | 573 | } |
67298804 | 574 | spin_unlock(&im->ino_lock); |
fff04f90 JK |
575 | } |
576 | } | |
577 | ||
4d57b86d | 578 | void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
39d787be CY |
579 | unsigned int devidx, int type) |
580 | { | |
581 | __add_ino_entry(sbi, ino, devidx, type); | |
582 | } | |
583 | ||
4d57b86d | 584 | bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
39d787be CY |
585 | unsigned int devidx, int type) |
586 | { | |
587 | struct inode_management *im = &sbi->im[type]; | |
588 | struct ino_entry *e; | |
589 | bool is_dirty = false; | |
590 | ||
591 | spin_lock(&im->ino_lock); | |
592 | e = radix_tree_lookup(&im->ino_root, ino); | |
593 | if (e && f2fs_test_bit(devidx, (char *)&e->dirty_device)) | |
594 | is_dirty = true; | |
595 | spin_unlock(&im->ino_lock); | |
596 | return is_dirty; | |
597 | } | |
598 | ||
4d57b86d | 599 | int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi) |
127e670a | 600 | { |
67298804 | 601 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a JK |
602 | int err = 0; |
603 | ||
67298804 | 604 | spin_lock(&im->ino_lock); |
cb78942b | 605 | |
1ecc0c5c | 606 | if (time_to_inject(sbi, FAULT_ORPHAN)) { |
cb78942b | 607 | spin_unlock(&im->ino_lock); |
c45d6002 | 608 | f2fs_show_injection_info(sbi, FAULT_ORPHAN); |
cb78942b JK |
609 | return -ENOSPC; |
610 | } | |
7fa750a1 | 611 | |
67298804 | 612 | if (unlikely(im->ino_num >= sbi->max_orphans)) |
127e670a | 613 | err = -ENOSPC; |
cbd56e7d | 614 | else |
67298804 CY |
615 | im->ino_num++; |
616 | spin_unlock(&im->ino_lock); | |
0d47c1ad | 617 | |
127e670a JK |
618 | return err; |
619 | } | |
620 | ||
4d57b86d | 621 | void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi) |
cbd56e7d | 622 | { |
67298804 CY |
623 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
624 | ||
625 | spin_lock(&im->ino_lock); | |
626 | f2fs_bug_on(sbi, im->ino_num == 0); | |
627 | im->ino_num--; | |
628 | spin_unlock(&im->ino_lock); | |
cbd56e7d JK |
629 | } |
630 | ||
4d57b86d | 631 | void f2fs_add_orphan_inode(struct inode *inode) |
127e670a | 632 | { |
39efac41 | 633 | /* add new orphan ino entry into list */ |
39d787be | 634 | __add_ino_entry(F2FS_I_SB(inode), inode->i_ino, 0, ORPHAN_INO); |
4d57b86d | 635 | f2fs_update_inode_page(inode); |
127e670a JK |
636 | } |
637 | ||
4d57b86d | 638 | void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 639 | { |
953e6cc6 | 640 | /* remove orphan entry from orphan list */ |
6451e041 | 641 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
127e670a JK |
642 | } |
643 | ||
8c14bfad | 644 | static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 645 | { |
8c14bfad | 646 | struct inode *inode; |
5905f9af | 647 | struct node_info ni; |
76a45e3c | 648 | int err; |
8c14bfad | 649 | |
5905f9af | 650 | inode = f2fs_iget_retry(sbi->sb, ino); |
8c14bfad CY |
651 | if (IS_ERR(inode)) { |
652 | /* | |
653 | * there should be a bug that we can't find the entry | |
654 | * to orphan inode. | |
655 | */ | |
656 | f2fs_bug_on(sbi, PTR_ERR(inode) == -ENOENT); | |
657 | return PTR_ERR(inode); | |
658 | } | |
659 | ||
10a26878 | 660 | err = f2fs_dquot_initialize(inode); |
a515d12f SY |
661 | if (err) { |
662 | iput(inode); | |
0f9ec2a8 | 663 | goto err_out; |
a515d12f | 664 | } |
0f9ec2a8 | 665 | |
127e670a JK |
666 | clear_nlink(inode); |
667 | ||
668 | /* truncate all the data during iput */ | |
669 | iput(inode); | |
5905f9af | 670 | |
a9419b63 | 671 | err = f2fs_get_node_info(sbi, ino, &ni, false); |
7735730d CY |
672 | if (err) |
673 | goto err_out; | |
5905f9af JK |
674 | |
675 | /* ENOMEM was fully retried in f2fs_evict_inode. */ | |
676 | if (ni.blk_addr != NULL_ADDR) { | |
0f9ec2a8 JK |
677 | err = -EIO; |
678 | goto err_out; | |
5905f9af | 679 | } |
8c14bfad | 680 | return 0; |
0f9ec2a8 JK |
681 | |
682 | err_out: | |
683 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
dcbb4c10 JP |
684 | f2fs_warn(sbi, "%s: orphan failed (ino=%x), run fsck to fix.", |
685 | __func__, ino); | |
0f9ec2a8 | 686 | return err; |
127e670a JK |
687 | } |
688 | ||
4d57b86d | 689 | int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi) |
127e670a | 690 | { |
3c642985 | 691 | block_t start_blk, orphan_blocks, i, j; |
4b2414d0 CY |
692 | unsigned int s_flags = sbi->sb->s_flags; |
693 | int err = 0; | |
ea676733 JK |
694 | #ifdef CONFIG_QUOTA |
695 | int quota_enabled; | |
696 | #endif | |
127e670a | 697 | |
aaec2b1d | 698 | if (!is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG)) |
8c14bfad | 699 | return 0; |
127e670a | 700 | |
b61af314 | 701 | if (bdev_read_only(sbi->sb->s_bdev)) { |
dcbb4c10 | 702 | f2fs_info(sbi, "write access unavailable, skipping orphan cleanup"); |
b61af314 CY |
703 | return 0; |
704 | } | |
705 | ||
1751e8a6 | 706 | if (s_flags & SB_RDONLY) { |
dcbb4c10 | 707 | f2fs_info(sbi, "orphan cleanup on readonly fs"); |
1751e8a6 | 708 | sbi->sb->s_flags &= ~SB_RDONLY; |
4b2414d0 CY |
709 | } |
710 | ||
711 | #ifdef CONFIG_QUOTA | |
76cf05d7 SY |
712 | /* |
713 | * Turn on quotas which were not enabled for read-only mounts if | |
714 | * filesystem has quota feature, so that they are updated correctly. | |
715 | */ | |
1751e8a6 | 716 | quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY); |
4b2414d0 CY |
717 | #endif |
718 | ||
55141486 | 719 | start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi); |
3c642985 | 720 | orphan_blocks = __start_sum_addr(sbi) - 1 - __cp_payload(sbi); |
127e670a | 721 | |
4d57b86d | 722 | f2fs_ra_meta_pages(sbi, start_blk, orphan_blocks, META_CP, true); |
662befda | 723 | |
3c642985 | 724 | for (i = 0; i < orphan_blocks; i++) { |
7735730d | 725 | struct page *page; |
127e670a JK |
726 | struct f2fs_orphan_block *orphan_blk; |
727 | ||
7735730d CY |
728 | page = f2fs_get_meta_page(sbi, start_blk + i); |
729 | if (IS_ERR(page)) { | |
730 | err = PTR_ERR(page); | |
731 | goto out; | |
732 | } | |
733 | ||
127e670a JK |
734 | orphan_blk = (struct f2fs_orphan_block *)page_address(page); |
735 | for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) { | |
736 | nid_t ino = le32_to_cpu(orphan_blk->ino[j]); | |
5f029c04 | 737 | |
8c14bfad CY |
738 | err = recover_orphan_inode(sbi, ino); |
739 | if (err) { | |
740 | f2fs_put_page(page, 1); | |
4b2414d0 | 741 | goto out; |
8c14bfad | 742 | } |
127e670a JK |
743 | } |
744 | f2fs_put_page(page, 1); | |
745 | } | |
746 | /* clear Orphan Flag */ | |
aaec2b1d | 747 | clear_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG); |
4b2414d0 | 748 | out: |
1378752b CY |
749 | set_sbi_flag(sbi, SBI_IS_RECOVERED); |
750 | ||
4b2414d0 CY |
751 | #ifdef CONFIG_QUOTA |
752 | /* Turn quotas off */ | |
ea676733 JK |
753 | if (quota_enabled) |
754 | f2fs_quota_off_umount(sbi->sb); | |
4b2414d0 | 755 | #endif |
1751e8a6 | 756 | sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */ |
4b2414d0 CY |
757 | |
758 | return err; | |
127e670a JK |
759 | } |
760 | ||
761 | static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk) | |
762 | { | |
502c6e0b | 763 | struct list_head *head; |
127e670a | 764 | struct f2fs_orphan_block *orphan_blk = NULL; |
127e670a | 765 | unsigned int nentries = 0; |
bd936f84 | 766 | unsigned short index = 1; |
8c402946 | 767 | unsigned short orphan_blocks; |
4531929e | 768 | struct page *page = NULL; |
6451e041 | 769 | struct ino_entry *orphan = NULL; |
67298804 | 770 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a | 771 | |
67298804 | 772 | orphan_blocks = GET_ORPHAN_BLOCKS(im->ino_num); |
8c402946 | 773 | |
d6c67a4f JK |
774 | /* |
775 | * we don't need to do spin_lock(&im->ino_lock) here, since all the | |
776 | * orphan inode operations are covered under f2fs_lock_op(). | |
777 | * And, spin_lock should be avoided due to page operations below. | |
778 | */ | |
67298804 | 779 | head = &im->ino_list; |
127e670a JK |
780 | |
781 | /* loop for each orphan inode entry and write them in Jornal block */ | |
502c6e0b GZ |
782 | list_for_each_entry(orphan, head, list) { |
783 | if (!page) { | |
4d57b86d | 784 | page = f2fs_grab_meta_page(sbi, start_blk++); |
502c6e0b GZ |
785 | orphan_blk = |
786 | (struct f2fs_orphan_block *)page_address(page); | |
787 | memset(orphan_blk, 0, sizeof(*orphan_blk)); | |
788 | } | |
127e670a | 789 | |
36795567 | 790 | orphan_blk->ino[nentries++] = cpu_to_le32(orphan->ino); |
127e670a | 791 | |
36795567 | 792 | if (nentries == F2FS_ORPHANS_PER_BLOCK) { |
127e670a JK |
793 | /* |
794 | * an orphan block is full of 1020 entries, | |
795 | * then we need to flush current orphan blocks | |
796 | * and bring another one in memory | |
797 | */ | |
798 | orphan_blk->blk_addr = cpu_to_le16(index); | |
799 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
800 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
801 | set_page_dirty(page); | |
802 | f2fs_put_page(page, 1); | |
803 | index++; | |
127e670a JK |
804 | nentries = 0; |
805 | page = NULL; | |
806 | } | |
502c6e0b | 807 | } |
127e670a | 808 | |
502c6e0b GZ |
809 | if (page) { |
810 | orphan_blk->blk_addr = cpu_to_le16(index); | |
811 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
812 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
813 | set_page_dirty(page); | |
814 | f2fs_put_page(page, 1); | |
127e670a | 815 | } |
127e670a JK |
816 | } |
817 | ||
d7eb8f1c CY |
818 | static __u32 f2fs_checkpoint_chksum(struct f2fs_sb_info *sbi, |
819 | struct f2fs_checkpoint *ckpt) | |
820 | { | |
821 | unsigned int chksum_ofs = le32_to_cpu(ckpt->checksum_offset); | |
822 | __u32 chksum; | |
823 | ||
824 | chksum = f2fs_crc32(sbi, ckpt, chksum_ofs); | |
825 | if (chksum_ofs < CP_CHKSUM_OFFSET) { | |
826 | chksum_ofs += sizeof(chksum); | |
827 | chksum = f2fs_chksum(sbi, chksum, (__u8 *)ckpt + chksum_ofs, | |
828 | F2FS_BLKSIZE - chksum_ofs); | |
829 | } | |
830 | return chksum; | |
831 | } | |
832 | ||
fc0065ad TY |
833 | static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr, |
834 | struct f2fs_checkpoint **cp_block, struct page **cp_page, | |
835 | unsigned long long *version) | |
127e670a | 836 | { |
fc0065ad | 837 | size_t crc_offset = 0; |
d7eb8f1c | 838 | __u32 crc; |
127e670a | 839 | |
4d57b86d | 840 | *cp_page = f2fs_get_meta_page(sbi, cp_addr); |
7735730d CY |
841 | if (IS_ERR(*cp_page)) |
842 | return PTR_ERR(*cp_page); | |
843 | ||
fc0065ad | 844 | *cp_block = (struct f2fs_checkpoint *)page_address(*cp_page); |
127e670a | 845 | |
fc0065ad | 846 | crc_offset = le32_to_cpu((*cp_block)->checksum_offset); |
d7eb8f1c CY |
847 | if (crc_offset < CP_MIN_CHKSUM_OFFSET || |
848 | crc_offset > CP_CHKSUM_OFFSET) { | |
d3f07c04 | 849 | f2fs_put_page(*cp_page, 1); |
dcbb4c10 | 850 | f2fs_warn(sbi, "invalid crc_offset: %zu", crc_offset); |
fc0065ad TY |
851 | return -EINVAL; |
852 | } | |
127e670a | 853 | |
d7eb8f1c CY |
854 | crc = f2fs_checkpoint_chksum(sbi, *cp_block); |
855 | if (crc != cur_cp_crc(*cp_block)) { | |
d3f07c04 | 856 | f2fs_put_page(*cp_page, 1); |
dcbb4c10 | 857 | f2fs_warn(sbi, "invalid crc value"); |
fc0065ad TY |
858 | return -EINVAL; |
859 | } | |
127e670a | 860 | |
fc0065ad TY |
861 | *version = cur_cp_version(*cp_block); |
862 | return 0; | |
863 | } | |
127e670a | 864 | |
fc0065ad TY |
865 | static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, |
866 | block_t cp_addr, unsigned long long *version) | |
867 | { | |
868 | struct page *cp_page_1 = NULL, *cp_page_2 = NULL; | |
869 | struct f2fs_checkpoint *cp_block = NULL; | |
870 | unsigned long long cur_version = 0, pre_version = 0; | |
5b5b4f85 | 871 | unsigned int cp_blocks; |
fc0065ad | 872 | int err; |
127e670a | 873 | |
fc0065ad TY |
874 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
875 | &cp_page_1, version); | |
876 | if (err) | |
d3f07c04 | 877 | return NULL; |
c9b60788 | 878 | |
5b5b4f85 CY |
879 | cp_blocks = le32_to_cpu(cp_block->cp_pack_total_block_count); |
880 | ||
881 | if (cp_blocks > sbi->blocks_per_seg || cp_blocks <= F2FS_CP_PACKS) { | |
dcbb4c10 JP |
882 | f2fs_warn(sbi, "invalid cp_pack_total_block_count:%u", |
883 | le32_to_cpu(cp_block->cp_pack_total_block_count)); | |
d3f07c04 | 884 | goto invalid_cp; |
c9b60788 | 885 | } |
fc0065ad | 886 | pre_version = *version; |
127e670a | 887 | |
5b5b4f85 | 888 | cp_addr += cp_blocks - 1; |
fc0065ad TY |
889 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
890 | &cp_page_2, version); | |
891 | if (err) | |
d3f07c04 | 892 | goto invalid_cp; |
fc0065ad | 893 | cur_version = *version; |
127e670a JK |
894 | |
895 | if (cur_version == pre_version) { | |
896 | *version = cur_version; | |
897 | f2fs_put_page(cp_page_2, 1); | |
898 | return cp_page_1; | |
899 | } | |
127e670a | 900 | f2fs_put_page(cp_page_2, 1); |
d3f07c04 | 901 | invalid_cp: |
127e670a JK |
902 | f2fs_put_page(cp_page_1, 1); |
903 | return NULL; | |
904 | } | |
905 | ||
4d57b86d | 906 | int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi) |
127e670a JK |
907 | { |
908 | struct f2fs_checkpoint *cp_block; | |
909 | struct f2fs_super_block *fsb = sbi->raw_super; | |
910 | struct page *cp1, *cp2, *cur_page; | |
911 | unsigned long blk_size = sbi->blocksize; | |
912 | unsigned long long cp1_version = 0, cp2_version = 0; | |
913 | unsigned long long cp_start_blk_no; | |
55141486 | 914 | unsigned int cp_blks = 1 + __cp_payload(sbi); |
1dbe4152 CL |
915 | block_t cp_blk_no; |
916 | int i; | |
10f966bb | 917 | int err; |
127e670a | 918 | |
0b6d4ca0 EB |
919 | sbi->ckpt = f2fs_kvzalloc(sbi, array_size(blk_size, cp_blks), |
920 | GFP_KERNEL); | |
127e670a JK |
921 | if (!sbi->ckpt) |
922 | return -ENOMEM; | |
923 | /* | |
924 | * Finding out valid cp block involves read both | |
7a88ddb5 | 925 | * sets( cp pack 1 and cp pack 2) |
127e670a JK |
926 | */ |
927 | cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
928 | cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version); | |
929 | ||
930 | /* The second checkpoint pack should start at the next segment */ | |
f9a4e6df JK |
931 | cp_start_blk_no += ((unsigned long long)1) << |
932 | le32_to_cpu(fsb->log_blocks_per_seg); | |
127e670a JK |
933 | cp2 = validate_checkpoint(sbi, cp_start_blk_no, &cp2_version); |
934 | ||
935 | if (cp1 && cp2) { | |
936 | if (ver_after(cp2_version, cp1_version)) | |
937 | cur_page = cp2; | |
938 | else | |
939 | cur_page = cp1; | |
940 | } else if (cp1) { | |
941 | cur_page = cp1; | |
942 | } else if (cp2) { | |
943 | cur_page = cp2; | |
944 | } else { | |
10f966bb | 945 | err = -EFSCORRUPTED; |
127e670a JK |
946 | goto fail_no_cp; |
947 | } | |
948 | ||
949 | cp_block = (struct f2fs_checkpoint *)page_address(cur_page); | |
950 | memcpy(sbi->ckpt, cp_block, blk_size); | |
951 | ||
8508e44a JK |
952 | if (cur_page == cp1) |
953 | sbi->cur_cp_pack = 1; | |
954 | else | |
955 | sbi->cur_cp_pack = 2; | |
984ec63c | 956 | |
e494c2f9 | 957 | /* Sanity checking of checkpoint */ |
10f966bb CY |
958 | if (f2fs_sanity_check_ckpt(sbi)) { |
959 | err = -EFSCORRUPTED; | |
e494c2f9 | 960 | goto free_fail_no_cp; |
10f966bb | 961 | } |
e494c2f9 | 962 | |
1dbe4152 CL |
963 | if (cp_blks <= 1) |
964 | goto done; | |
965 | ||
966 | cp_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
967 | if (cur_page == cp2) | |
968 | cp_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg); | |
969 | ||
970 | for (i = 1; i < cp_blks; i++) { | |
971 | void *sit_bitmap_ptr; | |
972 | unsigned char *ckpt = (unsigned char *)sbi->ckpt; | |
973 | ||
4d57b86d | 974 | cur_page = f2fs_get_meta_page(sbi, cp_blk_no + i); |
10f966bb CY |
975 | if (IS_ERR(cur_page)) { |
976 | err = PTR_ERR(cur_page); | |
7735730d | 977 | goto free_fail_no_cp; |
10f966bb | 978 | } |
1dbe4152 CL |
979 | sit_bitmap_ptr = page_address(cur_page); |
980 | memcpy(ckpt + i * blk_size, sit_bitmap_ptr, blk_size); | |
981 | f2fs_put_page(cur_page, 1); | |
982 | } | |
983 | done: | |
127e670a JK |
984 | f2fs_put_page(cp1, 1); |
985 | f2fs_put_page(cp2, 1); | |
986 | return 0; | |
987 | ||
a2125ff7 JK |
988 | free_fail_no_cp: |
989 | f2fs_put_page(cp1, 1); | |
990 | f2fs_put_page(cp2, 1); | |
127e670a | 991 | fail_no_cp: |
5222595d | 992 | kvfree(sbi->ckpt); |
10f966bb | 993 | return err; |
127e670a JK |
994 | } |
995 | ||
c227f912 | 996 | static void __add_dirty_inode(struct inode *inode, enum inode_type type) |
127e670a | 997 | { |
4081363f | 998 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 999 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
127e670a | 1000 | |
91942321 | 1001 | if (is_inode_flag_set(inode, flag)) |
2710fd7e | 1002 | return; |
2d7b822a | 1003 | |
91942321 | 1004 | set_inode_flag(inode, flag); |
7bc155fe | 1005 | list_add_tail(&F2FS_I(inode)->dirty_list, &sbi->inode_list[type]); |
33fbd510 | 1006 | stat_inc_dirty_inode(sbi, type); |
5deb8267 JK |
1007 | } |
1008 | ||
c227f912 | 1009 | static void __remove_dirty_inode(struct inode *inode, enum inode_type type) |
6ad7609a | 1010 | { |
c227f912 | 1011 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
6ad7609a | 1012 | |
91942321 | 1013 | if (get_dirty_pages(inode) || !is_inode_flag_set(inode, flag)) |
6ad7609a CY |
1014 | return; |
1015 | ||
91942321 JK |
1016 | list_del_init(&F2FS_I(inode)->dirty_list); |
1017 | clear_inode_flag(inode, flag); | |
33fbd510 | 1018 | stat_dec_dirty_inode(F2FS_I_SB(inode), type); |
6ad7609a CY |
1019 | } |
1020 | ||
4f5e34f7 | 1021 | void f2fs_update_dirty_folio(struct inode *inode, struct folio *folio) |
5deb8267 | 1022 | { |
4081363f | 1023 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 1024 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
5deb8267 | 1025 | |
5ac9f36f CY |
1026 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1027 | !S_ISLNK(inode->i_mode)) | |
127e670a | 1028 | return; |
7bd59381 | 1029 | |
1c4bf763 JK |
1030 | spin_lock(&sbi->inode_lock[type]); |
1031 | if (type != FILE_INODE || test_opt(sbi, DATA_FLUSH)) | |
10aa97c3 | 1032 | __add_dirty_inode(inode, type); |
b951a4ec | 1033 | inode_inc_dirty_pages(inode); |
1c4bf763 JK |
1034 | spin_unlock(&sbi->inode_lock[type]); |
1035 | ||
4f5e34f7 | 1036 | set_page_private_reference(&folio->page); |
5deb8267 JK |
1037 | } |
1038 | ||
4d57b86d | 1039 | void f2fs_remove_dirty_inode(struct inode *inode) |
127e670a | 1040 | { |
4081363f | 1041 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 1042 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
127e670a | 1043 | |
c227f912 CY |
1044 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1045 | !S_ISLNK(inode->i_mode)) | |
127e670a JK |
1046 | return; |
1047 | ||
10aa97c3 JK |
1048 | if (type == FILE_INODE && !test_opt(sbi, DATA_FLUSH)) |
1049 | return; | |
1050 | ||
c227f912 CY |
1051 | spin_lock(&sbi->inode_lock[type]); |
1052 | __remove_dirty_inode(inode, type); | |
1053 | spin_unlock(&sbi->inode_lock[type]); | |
74d0b917 JK |
1054 | } |
1055 | ||
4d57b86d | 1056 | int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type) |
127e670a | 1057 | { |
ce3b7d80 | 1058 | struct list_head *head; |
127e670a | 1059 | struct inode *inode; |
2710fd7e | 1060 | struct f2fs_inode_info *fi; |
4cf18537 | 1061 | bool is_dir = (type == DIR_INODE); |
4db08d01 | 1062 | unsigned long ino = 0; |
4cf18537 CY |
1063 | |
1064 | trace_f2fs_sync_dirty_inodes_enter(sbi->sb, is_dir, | |
1065 | get_pages(sbi, is_dir ? | |
1066 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
127e670a | 1067 | retry: |
9b664822 ZQ |
1068 | if (unlikely(f2fs_cp_error(sbi))) { |
1069 | trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir, | |
1070 | get_pages(sbi, is_dir ? | |
1071 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
6d5a1495 | 1072 | return -EIO; |
9b664822 | 1073 | } |
af41d3ee | 1074 | |
c227f912 | 1075 | spin_lock(&sbi->inode_lock[type]); |
ce3b7d80 | 1076 | |
c227f912 | 1077 | head = &sbi->inode_list[type]; |
127e670a | 1078 | if (list_empty(head)) { |
c227f912 | 1079 | spin_unlock(&sbi->inode_lock[type]); |
4cf18537 CY |
1080 | trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir, |
1081 | get_pages(sbi, is_dir ? | |
1082 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
6d5a1495 | 1083 | return 0; |
127e670a | 1084 | } |
939afa94 | 1085 | fi = list_first_entry(head, struct f2fs_inode_info, dirty_list); |
2710fd7e | 1086 | inode = igrab(&fi->vfs_inode); |
c227f912 | 1087 | spin_unlock(&sbi->inode_lock[type]); |
127e670a | 1088 | if (inode) { |
4db08d01 JK |
1089 | unsigned long cur_ino = inode->i_ino; |
1090 | ||
186857c5 | 1091 | F2FS_I(inode)->cp_task = current; |
b0af6d49 | 1092 | |
87d6f890 | 1093 | filemap_fdatawrite(inode->i_mapping); |
b0af6d49 | 1094 | |
186857c5 | 1095 | F2FS_I(inode)->cp_task = NULL; |
b0af6d49 | 1096 | |
127e670a | 1097 | iput(inode); |
4db08d01 | 1098 | /* We need to give cpu to another writers. */ |
2a63531a | 1099 | if (ino == cur_ino) |
4db08d01 | 1100 | cond_resched(); |
2a63531a | 1101 | else |
4db08d01 | 1102 | ino = cur_ino; |
127e670a JK |
1103 | } else { |
1104 | /* | |
1105 | * We should submit bio, since it exists several | |
1106 | * wribacking dentry pages in the freeing inode. | |
1107 | */ | |
b9109b0e | 1108 | f2fs_submit_merged_write(sbi, DATA); |
7ecebe5e | 1109 | cond_resched(); |
127e670a JK |
1110 | } |
1111 | goto retry; | |
1112 | } | |
1113 | ||
0f18b462 JK |
1114 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi) |
1115 | { | |
1116 | struct list_head *head = &sbi->inode_list[DIRTY_META]; | |
1117 | struct inode *inode; | |
1118 | struct f2fs_inode_info *fi; | |
1119 | s64 total = get_pages(sbi, F2FS_DIRTY_IMETA); | |
1120 | ||
1121 | while (total--) { | |
1122 | if (unlikely(f2fs_cp_error(sbi))) | |
1123 | return -EIO; | |
1124 | ||
1125 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
1126 | if (list_empty(head)) { | |
1127 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1128 | return 0; | |
1129 | } | |
939afa94 | 1130 | fi = list_first_entry(head, struct f2fs_inode_info, |
0f18b462 JK |
1131 | gdirty_list); |
1132 | inode = igrab(&fi->vfs_inode); | |
1133 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1134 | if (inode) { | |
18340edc JK |
1135 | sync_inode_metadata(inode, 0); |
1136 | ||
1137 | /* it's on eviction */ | |
1138 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) | |
4d57b86d | 1139 | f2fs_update_inode_page(inode); |
0f18b462 JK |
1140 | iput(inode); |
1141 | } | |
dee668c1 | 1142 | } |
0f18b462 JK |
1143 | return 0; |
1144 | } | |
1145 | ||
59c9081b YH |
1146 | static void __prepare_cp_block(struct f2fs_sb_info *sbi) |
1147 | { | |
1148 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1149 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
1150 | nid_t last_nid = nm_i->next_scan_nid; | |
1151 | ||
1152 | next_free_nid(sbi, &last_nid); | |
1153 | ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi)); | |
1154 | ckpt->valid_node_count = cpu_to_le32(valid_node_count(sbi)); | |
1155 | ckpt->valid_inode_count = cpu_to_le32(valid_inode_count(sbi)); | |
1156 | ckpt->next_free_nid = cpu_to_le32(last_nid); | |
1157 | } | |
1158 | ||
af033b2a CY |
1159 | static bool __need_flush_quota(struct f2fs_sb_info *sbi) |
1160 | { | |
db6ec53b JK |
1161 | bool ret = false; |
1162 | ||
af033b2a CY |
1163 | if (!is_journalled_quota(sbi)) |
1164 | return false; | |
db6ec53b | 1165 | |
e4544b63 | 1166 | if (!f2fs_down_write_trylock(&sbi->quota_sem)) |
a5c00422 | 1167 | return true; |
db6ec53b JK |
1168 | if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) { |
1169 | ret = false; | |
1170 | } else if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) { | |
1171 | ret = false; | |
1172 | } else if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_FLUSH)) { | |
1173 | clear_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH); | |
1174 | ret = true; | |
1175 | } else if (get_pages(sbi, F2FS_DIRTY_QDATA)) { | |
1176 | ret = true; | |
1177 | } | |
e4544b63 | 1178 | f2fs_up_write(&sbi->quota_sem); |
db6ec53b | 1179 | return ret; |
af033b2a CY |
1180 | } |
1181 | ||
0a8165d7 | 1182 | /* |
127e670a JK |
1183 | * Freeze all the FS-operations for checkpoint. |
1184 | */ | |
cf779cab | 1185 | static int block_operations(struct f2fs_sb_info *sbi) |
127e670a | 1186 | { |
127e670a JK |
1187 | struct writeback_control wbc = { |
1188 | .sync_mode = WB_SYNC_ALL, | |
1189 | .nr_to_write = LONG_MAX, | |
1190 | .for_reclaim = 0, | |
1191 | }; | |
af033b2a | 1192 | int err = 0, cnt = 0; |
c718379b | 1193 | |
34c061ad SL |
1194 | /* |
1195 | * Let's flush inline_data in dirty node pages. | |
1196 | */ | |
1197 | f2fs_flush_inline_data(sbi); | |
1198 | ||
af033b2a | 1199 | retry_flush_quotas: |
db6ec53b | 1200 | f2fs_lock_all(sbi); |
af033b2a CY |
1201 | if (__need_flush_quota(sbi)) { |
1202 | int locked; | |
1203 | ||
1204 | if (++cnt > DEFAULT_RETRY_QUOTA_FLUSH_COUNT) { | |
1205 | set_sbi_flag(sbi, SBI_QUOTA_SKIP_FLUSH); | |
db6ec53b | 1206 | set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH); |
af033b2a CY |
1207 | goto retry_flush_dents; |
1208 | } | |
db6ec53b | 1209 | f2fs_unlock_all(sbi); |
af033b2a CY |
1210 | |
1211 | /* only failed during mount/umount/freeze/quotactl */ | |
1212 | locked = down_read_trylock(&sbi->sb->s_umount); | |
1213 | f2fs_quota_sync(sbi->sb, -1); | |
1214 | if (locked) | |
1215 | up_read(&sbi->sb->s_umount); | |
af033b2a CY |
1216 | cond_resched(); |
1217 | goto retry_flush_quotas; | |
1218 | } | |
1219 | ||
1220 | retry_flush_dents: | |
127e670a | 1221 | /* write all the dirty dentry pages */ |
127e670a | 1222 | if (get_pages(sbi, F2FS_DIRTY_DENTS)) { |
e479556b | 1223 | f2fs_unlock_all(sbi); |
4d57b86d | 1224 | err = f2fs_sync_dirty_inodes(sbi, DIR_INODE); |
6d5a1495 | 1225 | if (err) |
1f5f11a3 | 1226 | return err; |
30973883 | 1227 | cond_resched(); |
af033b2a | 1228 | goto retry_flush_quotas; |
127e670a JK |
1229 | } |
1230 | ||
59c9081b YH |
1231 | /* |
1232 | * POR: we should ensure that there are no dirty node pages | |
1233 | * until finishing nat/sit flush. inode->i_blocks can be updated. | |
1234 | */ | |
e4544b63 | 1235 | f2fs_down_write(&sbi->node_change); |
59c9081b | 1236 | |
0f18b462 | 1237 | if (get_pages(sbi, F2FS_DIRTY_IMETA)) { |
e4544b63 | 1238 | f2fs_up_write(&sbi->node_change); |
0f18b462 JK |
1239 | f2fs_unlock_all(sbi); |
1240 | err = f2fs_sync_inode_meta(sbi); | |
1241 | if (err) | |
1f5f11a3 | 1242 | return err; |
30973883 | 1243 | cond_resched(); |
af033b2a | 1244 | goto retry_flush_quotas; |
0f18b462 JK |
1245 | } |
1246 | ||
39936837 | 1247 | retry_flush_nodes: |
e4544b63 | 1248 | f2fs_down_write(&sbi->node_write); |
127e670a JK |
1249 | |
1250 | if (get_pages(sbi, F2FS_DIRTY_NODES)) { | |
e4544b63 | 1251 | f2fs_up_write(&sbi->node_write); |
c29fd0c0 | 1252 | atomic_inc(&sbi->wb_sync_req[NODE]); |
4d57b86d | 1253 | err = f2fs_sync_node_pages(sbi, &wbc, false, FS_CP_NODE_IO); |
c29fd0c0 | 1254 | atomic_dec(&sbi->wb_sync_req[NODE]); |
6d5a1495 | 1255 | if (err) { |
e4544b63 | 1256 | f2fs_up_write(&sbi->node_change); |
cf779cab | 1257 | f2fs_unlock_all(sbi); |
1f5f11a3 | 1258 | return err; |
cf779cab | 1259 | } |
30973883 | 1260 | cond_resched(); |
39936837 | 1261 | goto retry_flush_nodes; |
127e670a | 1262 | } |
59c9081b YH |
1263 | |
1264 | /* | |
1265 | * sbi->node_change is used only for AIO write_begin path which produces | |
1266 | * dirty node blocks and some checkpoint values by block allocation. | |
1267 | */ | |
1268 | __prepare_cp_block(sbi); | |
e4544b63 | 1269 | f2fs_up_write(&sbi->node_change); |
cf779cab | 1270 | return err; |
127e670a JK |
1271 | } |
1272 | ||
1273 | static void unblock_operations(struct f2fs_sb_info *sbi) | |
1274 | { | |
e4544b63 | 1275 | f2fs_up_write(&sbi->node_write); |
e479556b | 1276 | f2fs_unlock_all(sbi); |
127e670a JK |
1277 | } |
1278 | ||
bf22c3cc | 1279 | void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type) |
fb51b5ef CL |
1280 | { |
1281 | DEFINE_WAIT(wait); | |
1282 | ||
1283 | for (;;) { | |
bf22c3cc | 1284 | if (!get_pages(sbi, type)) |
fb51b5ef CL |
1285 | break; |
1286 | ||
af697c0f JK |
1287 | if (unlikely(f2fs_cp_error(sbi))) |
1288 | break; | |
1289 | ||
9c30df7c JK |
1290 | if (type == F2FS_DIRTY_META) |
1291 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, | |
1292 | FS_CP_META_IO); | |
1fd28018 JK |
1293 | else if (type == F2FS_WB_CP_DATA) |
1294 | f2fs_submit_merged_write(sbi, DATA); | |
828add77 JK |
1295 | |
1296 | prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE); | |
5df7731f | 1297 | io_schedule_timeout(DEFAULT_IO_TIMEOUT); |
fb51b5ef CL |
1298 | } |
1299 | finish_wait(&sbi->cp_wait, &wait); | |
1300 | } | |
1301 | ||
e4c5d848 JK |
1302 | static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
1303 | { | |
1304 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num; | |
1305 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d1aa2453 | 1306 | unsigned long flags; |
e4c5d848 | 1307 | |
94c821fb | 1308 | if (cpc->reason & CP_UMOUNT) { |
b702c83e CY |
1309 | if (le32_to_cpu(ckpt->cp_pack_total_block_count) + |
1310 | NM_I(sbi)->nat_bits_blocks > sbi->blocks_per_seg) { | |
94c821fb CY |
1311 | clear_ckpt_flags(sbi, CP_NAT_BITS_FLAG); |
1312 | f2fs_notice(sbi, "Disable nat_bits due to no space"); | |
1313 | } else if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG) && | |
1314 | f2fs_nat_bitmap_enabled(sbi)) { | |
1315 | f2fs_enable_nat_bits(sbi); | |
1316 | set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); | |
1317 | f2fs_notice(sbi, "Rebuild and enable nat_bits"); | |
1318 | } | |
1319 | } | |
e4c5d848 | 1320 | |
94c821fb | 1321 | spin_lock_irqsave(&sbi->cp_lock, flags); |
22ad0b6a | 1322 | |
1f43e2ad CY |
1323 | if (cpc->reason & CP_TRIMMED) |
1324 | __set_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
cd36d7a1 CY |
1325 | else |
1326 | __clear_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
1f43e2ad | 1327 | |
c473f1a9 | 1328 | if (cpc->reason & CP_UMOUNT) |
e4c5d848 JK |
1329 | __set_ckpt_flags(ckpt, CP_UMOUNT_FLAG); |
1330 | else | |
1331 | __clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG); | |
1332 | ||
c473f1a9 | 1333 | if (cpc->reason & CP_FASTBOOT) |
e4c5d848 JK |
1334 | __set_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); |
1335 | else | |
1336 | __clear_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); | |
1337 | ||
1338 | if (orphan_num) | |
1339 | __set_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1340 | else | |
1341 | __clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1342 | ||
c84ef3c5 | 1343 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) |
e4c5d848 JK |
1344 | __set_ckpt_flags(ckpt, CP_FSCK_FLAG); |
1345 | ||
c84ef3c5 ST |
1346 | if (is_sbi_flag_set(sbi, SBI_IS_RESIZEFS)) |
1347 | __set_ckpt_flags(ckpt, CP_RESIZEFS_FLAG); | |
1348 | else | |
1349 | __clear_ckpt_flags(ckpt, CP_RESIZEFS_FLAG); | |
1350 | ||
4354994f DR |
1351 | if (is_sbi_flag_set(sbi, SBI_CP_DISABLED)) |
1352 | __set_ckpt_flags(ckpt, CP_DISABLED_FLAG); | |
1353 | else | |
1354 | __clear_ckpt_flags(ckpt, CP_DISABLED_FLAG); | |
1355 | ||
db610a64 JK |
1356 | if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK)) |
1357 | __set_ckpt_flags(ckpt, CP_DISABLED_QUICK_FLAG); | |
1358 | else | |
1359 | __clear_ckpt_flags(ckpt, CP_DISABLED_QUICK_FLAG); | |
1360 | ||
af033b2a CY |
1361 | if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) |
1362 | __set_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
bc88ac96 JK |
1363 | else |
1364 | __clear_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
af033b2a CY |
1365 | |
1366 | if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) | |
1367 | __set_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
1368 | ||
e4c5d848 JK |
1369 | /* set this flag to activate crc|cp_ver for recovery */ |
1370 | __set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG); | |
f2367923 | 1371 | __clear_ckpt_flags(ckpt, CP_NOCRC_RECOVERY_FLAG); |
e4c5d848 | 1372 | |
d1aa2453 | 1373 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
e4c5d848 JK |
1374 | } |
1375 | ||
46706d59 GX |
1376 | static void commit_checkpoint(struct f2fs_sb_info *sbi, |
1377 | void *src, block_t blk_addr) | |
1378 | { | |
1379 | struct writeback_control wbc = { | |
1380 | .for_reclaim = 0, | |
1381 | }; | |
1382 | ||
1383 | /* | |
1384 | * pagevec_lookup_tag and lock_page again will take | |
4d57b86d CY |
1385 | * some extra time. Therefore, f2fs_update_meta_pages and |
1386 | * f2fs_sync_meta_pages are combined in this function. | |
46706d59 | 1387 | */ |
4d57b86d | 1388 | struct page *page = f2fs_grab_meta_page(sbi, blk_addr); |
46706d59 GX |
1389 | int err; |
1390 | ||
bae0ee7a | 1391 | f2fs_wait_on_page_writeback(page, META, true, true); |
8d64d365 CY |
1392 | |
1393 | memcpy(page_address(page), src, PAGE_SIZE); | |
1394 | ||
1395 | set_page_dirty(page); | |
46706d59 GX |
1396 | if (unlikely(!clear_page_dirty_for_io(page))) |
1397 | f2fs_bug_on(sbi, 1); | |
1398 | ||
1399 | /* writeout cp pack 2 page */ | |
1400 | err = __f2fs_write_meta_page(page, &wbc, FS_CP_META_IO); | |
af697c0f JK |
1401 | if (unlikely(err && f2fs_cp_error(sbi))) { |
1402 | f2fs_put_page(page, 1); | |
1403 | return; | |
1404 | } | |
46706d59 | 1405 | |
af697c0f | 1406 | f2fs_bug_on(sbi, err); |
46706d59 GX |
1407 | f2fs_put_page(page, 0); |
1408 | ||
1409 | /* submit checkpoint (with barrier if NOBARRIER is not set) */ | |
1410 | f2fs_submit_merged_write(sbi, META_FLUSH); | |
1411 | } | |
1412 | ||
3a0a9cbc CY |
1413 | static inline u64 get_sectors_written(struct block_device *bdev) |
1414 | { | |
ff49c86f | 1415 | return (u64)part_stat_read(bdev, sectors[STAT_WRITE]); |
3a0a9cbc CY |
1416 | } |
1417 | ||
1418 | u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi) | |
1419 | { | |
1420 | if (f2fs_is_multi_device(sbi)) { | |
1421 | u64 sectors = 0; | |
1422 | int i; | |
1423 | ||
1424 | for (i = 0; i < sbi->s_ndevs; i++) | |
1425 | sectors += get_sectors_written(FDEV(i).bdev); | |
1426 | ||
1427 | return sectors; | |
1428 | } | |
1429 | ||
1430 | return get_sectors_written(sbi->sb->s_bdev); | |
1431 | } | |
1432 | ||
c34f42e2 | 1433 | static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1434 | { |
1435 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
77041823 | 1436 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
d1aa2453 | 1437 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num, flags; |
127e670a | 1438 | block_t start_blk; |
127e670a | 1439 | unsigned int data_sum_blocks, orphan_blocks; |
7e586fa0 | 1440 | __u32 crc32 = 0; |
127e670a | 1441 | int i; |
55141486 | 1442 | int cp_payload_blks = __cp_payload(sbi); |
8f1dbbbb SL |
1443 | struct curseg_info *seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); |
1444 | u64 kbytes_written; | |
1228b482 | 1445 | int err; |
127e670a JK |
1446 | |
1447 | /* Flush all the NAT/SIT pages */ | |
8ec18bff | 1448 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
127e670a | 1449 | |
7a88ddb5 | 1450 | /* start to update checkpoint, cp ver is already updated previously */ |
a1f72ac2 | 1451 | ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi, true)); |
127e670a | 1452 | ckpt->free_segment_count = cpu_to_le32(free_segments(sbi)); |
b5b82205 | 1453 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
127e670a JK |
1454 | ckpt->cur_node_segno[i] = |
1455 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE)); | |
1456 | ckpt->cur_node_blkoff[i] = | |
1457 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_NODE)); | |
1458 | ckpt->alloc_type[i + CURSEG_HOT_NODE] = | |
1459 | curseg_alloc_type(sbi, i + CURSEG_HOT_NODE); | |
1460 | } | |
b5b82205 | 1461 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { |
127e670a JK |
1462 | ckpt->cur_data_segno[i] = |
1463 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA)); | |
1464 | ckpt->cur_data_blkoff[i] = | |
1465 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_DATA)); | |
1466 | ckpt->alloc_type[i + CURSEG_HOT_DATA] = | |
1467 | curseg_alloc_type(sbi, i + CURSEG_HOT_DATA); | |
1468 | } | |
1469 | ||
a87aff1d | 1470 | /* 2 cp + n data seg summary + orphan inode blocks */ |
4d57b86d | 1471 | data_sum_blocks = f2fs_npages_for_summary_flush(sbi, false); |
d1aa2453 | 1472 | spin_lock_irqsave(&sbi->cp_lock, flags); |
b5b82205 | 1473 | if (data_sum_blocks < NR_CURSEG_DATA_TYPE) |
aaec2b1d | 1474 | __set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
127e670a | 1475 | else |
aaec2b1d | 1476 | __clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
d1aa2453 | 1477 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
127e670a | 1478 | |
67298804 | 1479 | orphan_blocks = GET_ORPHAN_BLOCKS(orphan_num); |
1dbe4152 CL |
1480 | ckpt->cp_pack_start_sum = cpu_to_le32(1 + cp_payload_blks + |
1481 | orphan_blocks); | |
127e670a | 1482 | |
119ee914 | 1483 | if (__remain_node_summaries(cpc->reason)) |
2a4bd0c3 | 1484 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
1dbe4152 CL |
1485 | cp_payload_blks + data_sum_blocks + |
1486 | orphan_blocks + NR_CURSEG_NODE_TYPE); | |
119ee914 | 1487 | else |
b5b82205 | 1488 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
1dbe4152 CL |
1489 | cp_payload_blks + data_sum_blocks + |
1490 | orphan_blocks); | |
119ee914 | 1491 | |
e4c5d848 JK |
1492 | /* update ckpt flag for checkpoint */ |
1493 | update_ckpt_flags(sbi, cpc); | |
a468f0ef | 1494 | |
127e670a JK |
1495 | /* update SIT/NAT bitmap */ |
1496 | get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP)); | |
1497 | get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP)); | |
1498 | ||
d7eb8f1c | 1499 | crc32 = f2fs_checkpoint_chksum(sbi, ckpt); |
7e586fa0 JK |
1500 | *((__le32 *)((unsigned char *)ckpt + |
1501 | le32_to_cpu(ckpt->checksum_offset))) | |
127e670a JK |
1502 | = cpu_to_le32(crc32); |
1503 | ||
8508e44a | 1504 | start_blk = __start_cp_next_addr(sbi); |
127e670a | 1505 | |
22ad0b6a | 1506 | /* write nat bits */ |
94c821fb CY |
1507 | if ((cpc->reason & CP_UMOUNT) && |
1508 | is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG)) { | |
22ad0b6a | 1509 | __u64 cp_ver = cur_cp_version(ckpt); |
22ad0b6a JK |
1510 | block_t blk; |
1511 | ||
1512 | cp_ver |= ((__u64)crc32 << 32); | |
1513 | *(__le64 *)nm_i->nat_bits = cpu_to_le64(cp_ver); | |
1514 | ||
1515 | blk = start_blk + sbi->blocks_per_seg - nm_i->nat_bits_blocks; | |
1516 | for (i = 0; i < nm_i->nat_bits_blocks; i++) | |
4d57b86d | 1517 | f2fs_update_meta_page(sbi, nm_i->nat_bits + |
22ad0b6a | 1518 | (i << F2FS_BLKSIZE_BITS), blk + i); |
22ad0b6a JK |
1519 | } |
1520 | ||
127e670a | 1521 | /* write out checkpoint buffer at block 0 */ |
4d57b86d | 1522 | f2fs_update_meta_page(sbi, ckpt, start_blk++); |
381722d2 CY |
1523 | |
1524 | for (i = 1; i < 1 + cp_payload_blks; i++) | |
4d57b86d | 1525 | f2fs_update_meta_page(sbi, (char *)ckpt + i * F2FS_BLKSIZE, |
381722d2 | 1526 | start_blk++); |
1dbe4152 | 1527 | |
67298804 | 1528 | if (orphan_num) { |
127e670a JK |
1529 | write_orphan_inodes(sbi, start_blk); |
1530 | start_blk += orphan_blocks; | |
1531 | } | |
1532 | ||
4d57b86d | 1533 | f2fs_write_data_summaries(sbi, start_blk); |
127e670a | 1534 | start_blk += data_sum_blocks; |
8f1dbbbb SL |
1535 | |
1536 | /* Record write statistics in the hot node summary */ | |
1537 | kbytes_written = sbi->kbytes_written; | |
3a0a9cbc CY |
1538 | kbytes_written += (f2fs_get_sectors_written(sbi) - |
1539 | sbi->sectors_written_start) >> 1; | |
b7ad7512 | 1540 | seg_i->journal->info.kbytes_written = cpu_to_le64(kbytes_written); |
8f1dbbbb | 1541 | |
119ee914 | 1542 | if (__remain_node_summaries(cpc->reason)) { |
4d57b86d | 1543 | f2fs_write_node_summaries(sbi, start_blk); |
127e670a JK |
1544 | start_blk += NR_CURSEG_NODE_TYPE; |
1545 | } | |
1546 | ||
46706d59 GX |
1547 | /* update user_block_counts */ |
1548 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
1549 | percpu_counter_set(&sbi->alloc_valid_block_count, 0); | |
47c8ebcc | 1550 | percpu_counter_set(&sbi->rf_node_block_count, 0); |
127e670a | 1551 | |
46706d59 | 1552 | /* Here, we have one bio having CP pack except cp pack 2 page */ |
4d57b86d | 1553 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
bf22c3cc ST |
1554 | /* Wait for all dirty meta pages to be submitted for IO */ |
1555 | f2fs_wait_on_all_pages(sbi, F2FS_DIRTY_META); | |
46706d59 GX |
1556 | |
1557 | /* wait for previous submitted meta pages writeback */ | |
bf22c3cc | 1558 | f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA); |
127e670a | 1559 | |
46706d59 GX |
1560 | /* flush all device cache */ |
1561 | err = f2fs_flush_device_cache(sbi); | |
1562 | if (err) | |
1563 | return err; | |
127e670a | 1564 | |
46706d59 GX |
1565 | /* barrier and flush checkpoint cp pack 2 page if it can */ |
1566 | commit_checkpoint(sbi, ckpt, start_blk); | |
bf22c3cc | 1567 | f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA); |
6a8f8ca5 | 1568 | |
18767e62 | 1569 | /* |
542989b6 | 1570 | * invalidate intermediate page cache borrowed from meta inode which are |
aff6fbbe | 1571 | * used for migration of encrypted, verity or compressed inode's blocks. |
18767e62 | 1572 | */ |
aff6fbbe CY |
1573 | if (f2fs_sb_has_encrypt(sbi) || f2fs_sb_has_verity(sbi) || |
1574 | f2fs_sb_has_compression(sbi)) | |
18767e62 CY |
1575 | invalidate_mapping_pages(META_MAPPING(sbi), |
1576 | MAIN_BLKADDR(sbi), MAX_BLKADDR(sbi) - 1); | |
1577 | ||
4d57b86d | 1578 | f2fs_release_ino_entry(sbi, false); |
cf779cab | 1579 | |
50fa53ec CY |
1580 | f2fs_reset_fsync_node_info(sbi); |
1581 | ||
caf0047e | 1582 | clear_sbi_flag(sbi, SBI_IS_DIRTY); |
bbf156f7 | 1583 | clear_sbi_flag(sbi, SBI_NEED_CP); |
af033b2a | 1584 | clear_sbi_flag(sbi, SBI_QUOTA_SKIP_FLUSH); |
c9c8ed50 CY |
1585 | |
1586 | spin_lock(&sbi->stat_lock); | |
4354994f | 1587 | sbi->unusable_block_count = 0; |
c9c8ed50 CY |
1588 | spin_unlock(&sbi->stat_lock); |
1589 | ||
8508e44a | 1590 | __set_cp_next_pack(sbi); |
c34f42e2 | 1591 | |
c2a080ae CY |
1592 | /* |
1593 | * redirty superblock if metadata like node page or inode cache is | |
1594 | * updated during writing checkpoint. | |
1595 | */ | |
1596 | if (get_pages(sbi, F2FS_DIRTY_NODES) || | |
1597 | get_pages(sbi, F2FS_DIRTY_IMETA)) | |
1598 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1599 | ||
1600 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_DENTS)); | |
1601 | ||
af697c0f | 1602 | return unlikely(f2fs_cp_error(sbi)) ? -EIO : 0; |
127e670a JK |
1603 | } |
1604 | ||
4d57b86d | 1605 | int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1606 | { |
1607 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1608 | unsigned long long ckpt_ver; | |
c34f42e2 | 1609 | int err = 0; |
127e670a | 1610 | |
f5a131bb CY |
1611 | if (f2fs_readonly(sbi->sb) || f2fs_hw_is_readonly(sbi)) |
1612 | return -EROFS; | |
1613 | ||
4354994f DR |
1614 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { |
1615 | if (cpc->reason != CP_PAUSE) | |
1616 | return 0; | |
dcbb4c10 | 1617 | f2fs_warn(sbi, "Start checkpoint disabled!"); |
4354994f | 1618 | } |
b4b10061 | 1619 | if (cpc->reason != CP_RESIZE) |
e4544b63 | 1620 | f2fs_down_write(&sbi->cp_global_sem); |
8501017e | 1621 | |
caf0047e | 1622 | if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) && |
c473f1a9 CY |
1623 | ((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) || |
1624 | ((cpc->reason & CP_DISCARD) && !sbi->discard_blks))) | |
8501017e | 1625 | goto out; |
c34f42e2 CY |
1626 | if (unlikely(f2fs_cp_error(sbi))) { |
1627 | err = -EIO; | |
cf779cab | 1628 | goto out; |
c34f42e2 | 1629 | } |
2bda542d WL |
1630 | |
1631 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); | |
1632 | ||
c34f42e2 CY |
1633 | err = block_operations(sbi); |
1634 | if (err) | |
cf779cab | 1635 | goto out; |
127e670a | 1636 | |
75ab4cb8 | 1637 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish block_ops"); |
2af4bd6c | 1638 | |
b9109b0e | 1639 | f2fs_flush_merged_writes(sbi); |
127e670a | 1640 | |
58cce381 | 1641 | /* this is the case of multiple fstrims without any changes */ |
c473f1a9 | 1642 | if (cpc->reason & CP_DISCARD) { |
4d57b86d | 1643 | if (!f2fs_exist_trim_candidates(sbi, cpc)) { |
25290fa5 JK |
1644 | unblock_operations(sbi); |
1645 | goto out; | |
1646 | } | |
1647 | ||
a95ba66a | 1648 | if (NM_I(sbi)->nat_cnt[DIRTY_NAT] == 0 && |
0333ad4e JK |
1649 | SIT_I(sbi)->dirty_sentries == 0 && |
1650 | prefree_segments(sbi) == 0) { | |
4d57b86d CY |
1651 | f2fs_flush_sit_entries(sbi, cpc); |
1652 | f2fs_clear_prefree_segments(sbi, cpc); | |
0333ad4e JK |
1653 | unblock_operations(sbi); |
1654 | goto out; | |
1655 | } | |
58cce381 YH |
1656 | } |
1657 | ||
127e670a JK |
1658 | /* |
1659 | * update checkpoint pack index | |
1660 | * Increase the version number so that | |
1661 | * SIT entries and seg summaries are written at correct place | |
1662 | */ | |
d71b5564 | 1663 | ckpt_ver = cur_cp_version(ckpt); |
127e670a JK |
1664 | ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver); |
1665 | ||
1666 | /* write cached NAT/SIT entries to NAT/SIT area */ | |
edc55aaf | 1667 | err = f2fs_flush_nat_entries(sbi, cpc); |
91803392 CY |
1668 | if (err) { |
1669 | f2fs_err(sbi, "f2fs_flush_nat_entries failed err:%d, stop checkpoint", err); | |
1670 | f2fs_bug_on(sbi, !f2fs_cp_error(sbi)); | |
edc55aaf | 1671 | goto stop; |
91803392 | 1672 | } |
edc55aaf | 1673 | |
4d57b86d | 1674 | f2fs_flush_sit_entries(sbi, cpc); |
127e670a | 1675 | |
d0b9e42a | 1676 | /* save inmem log status */ |
093749e2 | 1677 | f2fs_save_inmem_curseg(sbi); |
d0b9e42a | 1678 | |
c34f42e2 | 1679 | err = do_checkpoint(sbi, cpc); |
91803392 CY |
1680 | if (err) { |
1681 | f2fs_err(sbi, "do_checkpoint failed err:%d, stop checkpoint", err); | |
1682 | f2fs_bug_on(sbi, !f2fs_cp_error(sbi)); | |
4d57b86d | 1683 | f2fs_release_discard_addrs(sbi); |
91803392 | 1684 | } else { |
4d57b86d | 1685 | f2fs_clear_prefree_segments(sbi, cpc); |
91803392 | 1686 | } |
d0b9e42a | 1687 | |
093749e2 | 1688 | f2fs_restore_inmem_curseg(sbi); |
edc55aaf | 1689 | stop: |
127e670a | 1690 | unblock_operations(sbi); |
942e0be6 | 1691 | stat_inc_cp_count(sbi->stat_info); |
10027551 | 1692 | |
c473f1a9 | 1693 | if (cpc->reason & CP_RECOVERY) |
dcbb4c10 | 1694 | f2fs_notice(sbi, "checkpoint: version = %llx", ckpt_ver); |
60b99b48 | 1695 | |
7a88ddb5 | 1696 | /* update CP_TIME to trigger checkpoint periodically */ |
6beceb54 | 1697 | f2fs_update_time(sbi, CP_TIME); |
55d1cdb2 | 1698 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint"); |
8501017e | 1699 | out: |
b4b10061 | 1700 | if (cpc->reason != CP_RESIZE) |
e4544b63 | 1701 | f2fs_up_write(&sbi->cp_global_sem); |
c34f42e2 | 1702 | return err; |
127e670a JK |
1703 | } |
1704 | ||
4d57b86d | 1705 | void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi) |
127e670a | 1706 | { |
6451e041 JK |
1707 | int i; |
1708 | ||
1709 | for (i = 0; i < MAX_INO_ENTRY; i++) { | |
67298804 CY |
1710 | struct inode_management *im = &sbi->im[i]; |
1711 | ||
1712 | INIT_RADIX_TREE(&im->ino_root, GFP_ATOMIC); | |
1713 | spin_lock_init(&im->ino_lock); | |
1714 | INIT_LIST_HEAD(&im->ino_list); | |
1715 | im->ino_num = 0; | |
6451e041 JK |
1716 | } |
1717 | ||
b5b82205 | 1718 | sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS - |
d0b9e42a | 1719 | NR_CURSEG_PERSIST_TYPE - __cp_payload(sbi)) * |
14b42817 | 1720 | F2FS_ORPHANS_PER_BLOCK; |
127e670a JK |
1721 | } |
1722 | ||
4d57b86d | 1723 | int __init f2fs_create_checkpoint_caches(void) |
127e670a | 1724 | { |
6451e041 JK |
1725 | ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry", |
1726 | sizeof(struct ino_entry)); | |
1727 | if (!ino_entry_slab) | |
127e670a | 1728 | return -ENOMEM; |
4d57b86d | 1729 | f2fs_inode_entry_slab = f2fs_kmem_cache_create("f2fs_inode_entry", |
06292073 | 1730 | sizeof(struct inode_entry)); |
4d57b86d | 1731 | if (!f2fs_inode_entry_slab) { |
6451e041 | 1732 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1733 | return -ENOMEM; |
1734 | } | |
1735 | return 0; | |
1736 | } | |
1737 | ||
4d57b86d | 1738 | void f2fs_destroy_checkpoint_caches(void) |
127e670a | 1739 | { |
6451e041 | 1740 | kmem_cache_destroy(ino_entry_slab); |
4d57b86d | 1741 | kmem_cache_destroy(f2fs_inode_entry_slab); |
127e670a | 1742 | } |
261eeb9c DJ |
1743 | |
1744 | static int __write_checkpoint_sync(struct f2fs_sb_info *sbi) | |
1745 | { | |
1746 | struct cp_control cpc = { .reason = CP_SYNC, }; | |
1747 | int err; | |
1748 | ||
e4544b63 | 1749 | f2fs_down_write(&sbi->gc_lock); |
261eeb9c | 1750 | err = f2fs_write_checkpoint(sbi, &cpc); |
e4544b63 | 1751 | f2fs_up_write(&sbi->gc_lock); |
261eeb9c DJ |
1752 | |
1753 | return err; | |
1754 | } | |
1755 | ||
1756 | static void __checkpoint_and_complete_reqs(struct f2fs_sb_info *sbi) | |
1757 | { | |
1758 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1759 | struct ckpt_req *req, *next; | |
1760 | struct llist_node *dispatch_list; | |
1761 | u64 sum_diff = 0, diff, count = 0; | |
1762 | int ret; | |
1763 | ||
1764 | dispatch_list = llist_del_all(&cprc->issue_list); | |
1765 | if (!dispatch_list) | |
1766 | return; | |
1767 | dispatch_list = llist_reverse_order(dispatch_list); | |
1768 | ||
1769 | ret = __write_checkpoint_sync(sbi); | |
1770 | atomic_inc(&cprc->issued_ckpt); | |
1771 | ||
1772 | llist_for_each_entry_safe(req, next, dispatch_list, llnode) { | |
1773 | diff = (u64)ktime_ms_delta(ktime_get(), req->queue_time); | |
1774 | req->ret = ret; | |
1775 | complete(&req->wait); | |
1776 | ||
1777 | sum_diff += diff; | |
1778 | count++; | |
1779 | } | |
1780 | atomic_sub(count, &cprc->queued_ckpt); | |
1781 | atomic_add(count, &cprc->total_ckpt); | |
1782 | ||
1783 | spin_lock(&cprc->stat_lock); | |
1784 | cprc->cur_time = (unsigned int)div64_u64(sum_diff, count); | |
1785 | if (cprc->peak_time < cprc->cur_time) | |
1786 | cprc->peak_time = cprc->cur_time; | |
1787 | spin_unlock(&cprc->stat_lock); | |
1788 | } | |
1789 | ||
1790 | static int issue_checkpoint_thread(void *data) | |
1791 | { | |
1792 | struct f2fs_sb_info *sbi = data; | |
1793 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1794 | wait_queue_head_t *q = &cprc->ckpt_wait_queue; | |
1795 | repeat: | |
1796 | if (kthread_should_stop()) | |
1797 | return 0; | |
1798 | ||
261eeb9c DJ |
1799 | if (!llist_empty(&cprc->issue_list)) |
1800 | __checkpoint_and_complete_reqs(sbi); | |
1801 | ||
261eeb9c DJ |
1802 | wait_event_interruptible(*q, |
1803 | kthread_should_stop() || !llist_empty(&cprc->issue_list)); | |
1804 | goto repeat; | |
1805 | } | |
1806 | ||
1807 | static void flush_remained_ckpt_reqs(struct f2fs_sb_info *sbi, | |
1808 | struct ckpt_req *wait_req) | |
1809 | { | |
1810 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1811 | ||
1812 | if (!llist_empty(&cprc->issue_list)) { | |
1813 | __checkpoint_and_complete_reqs(sbi); | |
1814 | } else { | |
1815 | /* already dispatched by issue_checkpoint_thread */ | |
1816 | if (wait_req) | |
1817 | wait_for_completion(&wait_req->wait); | |
1818 | } | |
1819 | } | |
1820 | ||
1821 | static void init_ckpt_req(struct ckpt_req *req) | |
1822 | { | |
1823 | memset(req, 0, sizeof(struct ckpt_req)); | |
1824 | ||
1825 | init_completion(&req->wait); | |
1826 | req->queue_time = ktime_get(); | |
1827 | } | |
1828 | ||
1829 | int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi) | |
1830 | { | |
1831 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1832 | struct ckpt_req req; | |
1833 | struct cp_control cpc; | |
1834 | ||
1835 | cpc.reason = __get_cp_reason(sbi); | |
1836 | if (!test_opt(sbi, MERGE_CHECKPOINT) || cpc.reason != CP_SYNC) { | |
1837 | int ret; | |
1838 | ||
e4544b63 | 1839 | f2fs_down_write(&sbi->gc_lock); |
261eeb9c | 1840 | ret = f2fs_write_checkpoint(sbi, &cpc); |
e4544b63 | 1841 | f2fs_up_write(&sbi->gc_lock); |
261eeb9c DJ |
1842 | |
1843 | return ret; | |
1844 | } | |
1845 | ||
1846 | if (!cprc->f2fs_issue_ckpt) | |
1847 | return __write_checkpoint_sync(sbi); | |
1848 | ||
1849 | init_ckpt_req(&req); | |
1850 | ||
1851 | llist_add(&req.llnode, &cprc->issue_list); | |
1852 | atomic_inc(&cprc->queued_ckpt); | |
1853 | ||
3b42c741 CY |
1854 | /* |
1855 | * update issue_list before we wake up issue_checkpoint thread, | |
1856 | * this smp_mb() pairs with another barrier in ___wait_event(), | |
1857 | * see more details in comments of waitqueue_active(). | |
1858 | */ | |
261eeb9c DJ |
1859 | smp_mb(); |
1860 | ||
1861 | if (waitqueue_active(&cprc->ckpt_wait_queue)) | |
1862 | wake_up(&cprc->ckpt_wait_queue); | |
1863 | ||
1864 | if (cprc->f2fs_issue_ckpt) | |
1865 | wait_for_completion(&req.wait); | |
1866 | else | |
1867 | flush_remained_ckpt_reqs(sbi, &req); | |
1868 | ||
1869 | return req.ret; | |
1870 | } | |
1871 | ||
1872 | int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi) | |
1873 | { | |
1874 | dev_t dev = sbi->sb->s_bdev->bd_dev; | |
1875 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1876 | ||
1877 | if (cprc->f2fs_issue_ckpt) | |
1878 | return 0; | |
1879 | ||
1880 | cprc->f2fs_issue_ckpt = kthread_run(issue_checkpoint_thread, sbi, | |
1881 | "f2fs_ckpt-%u:%u", MAJOR(dev), MINOR(dev)); | |
1882 | if (IS_ERR(cprc->f2fs_issue_ckpt)) { | |
1883 | cprc->f2fs_issue_ckpt = NULL; | |
1884 | return -ENOMEM; | |
1885 | } | |
1886 | ||
e6592066 | 1887 | set_task_ioprio(cprc->f2fs_issue_ckpt, cprc->ckpt_thread_ioprio); |
261eeb9c DJ |
1888 | |
1889 | return 0; | |
1890 | } | |
1891 | ||
1892 | void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi) | |
1893 | { | |
1894 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1895 | ||
1896 | if (cprc->f2fs_issue_ckpt) { | |
1897 | struct task_struct *ckpt_task = cprc->f2fs_issue_ckpt; | |
1898 | ||
1899 | cprc->f2fs_issue_ckpt = NULL; | |
1900 | kthread_stop(ckpt_task); | |
1901 | ||
1902 | flush_remained_ckpt_reqs(sbi, NULL); | |
1903 | } | |
1904 | } | |
1905 | ||
1906 | void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi) | |
1907 | { | |
1908 | struct ckpt_req_control *cprc = &sbi->cprc_info; | |
1909 | ||
1910 | atomic_set(&cprc->issued_ckpt, 0); | |
1911 | atomic_set(&cprc->total_ckpt, 0); | |
1912 | atomic_set(&cprc->queued_ckpt, 0); | |
e6592066 | 1913 | cprc->ckpt_thread_ioprio = DEFAULT_CHECKPOINT_IOPRIO; |
261eeb9c DJ |
1914 | init_waitqueue_head(&cprc->ckpt_wait_queue); |
1915 | init_llist_head(&cprc->issue_list); | |
1916 | spin_lock_init(&cprc->stat_lock); | |
1917 | } |