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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> | |
16 | ||
17 | #include "f2fs.h" | |
18 | #include "node.h" | |
19 | #include "segment.h" | |
9e4ded3f | 20 | #include "trace.h" |
2af4bd6c | 21 | #include <trace/events/f2fs.h> |
127e670a | 22 | |
6451e041 | 23 | static struct kmem_cache *ino_entry_slab; |
4d57b86d | 24 | struct kmem_cache *f2fs_inode_entry_slab; |
127e670a | 25 | |
38f91ca8 JK |
26 | void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io) |
27 | { | |
d494500a | 28 | f2fs_build_fault_attr(sbi, 0, 0); |
aaec2b1d | 29 | set_ckpt_flags(sbi, CP_ERROR_FLAG); |
38f91ca8 | 30 | if (!end_io) |
b9109b0e | 31 | f2fs_flush_merged_writes(sbi); |
38f91ca8 JK |
32 | } |
33 | ||
0a8165d7 | 34 | /* |
127e670a JK |
35 | * We guarantee no failure on the returned page. |
36 | */ | |
4d57b86d | 37 | struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
127e670a | 38 | { |
9df27d98 | 39 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a JK |
40 | struct page *page = NULL; |
41 | repeat: | |
300e129c | 42 | page = f2fs_grab_cache_page(mapping, index, false); |
127e670a JK |
43 | if (!page) { |
44 | cond_resched(); | |
45 | goto repeat; | |
46 | } | |
fec1d657 | 47 | f2fs_wait_on_page_writeback(page, META, true); |
237c0790 JK |
48 | if (!PageUptodate(page)) |
49 | SetPageUptodate(page); | |
127e670a JK |
50 | return page; |
51 | } | |
52 | ||
0a8165d7 | 53 | /* |
127e670a JK |
54 | * We guarantee no failure on the returned page. |
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, |
0833721e | 69 | .is_meta = 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 | |
393ff91f | 92 | lock_page(page); |
6bacf52f | 93 | if (unlikely(page->mapping != mapping)) { |
afcb7ca0 JK |
94 | f2fs_put_page(page, 1); |
95 | goto repeat; | |
96 | } | |
f3f338ca | 97 | |
81114baa | 98 | if (unlikely(!PageUptodate(page))) { |
7735730d CY |
99 | f2fs_put_page(page, 1); |
100 | return ERR_PTR(-EIO); | |
81114baa | 101 | } |
393ff91f | 102 | out: |
127e670a JK |
103 | return page; |
104 | } | |
105 | ||
4d57b86d | 106 | struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
2b947003 CY |
107 | { |
108 | return __get_meta_page(sbi, index, true); | |
109 | } | |
110 | ||
7735730d CY |
111 | struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index) |
112 | { | |
113 | struct page *page; | |
114 | int count = 0; | |
115 | ||
116 | retry: | |
117 | page = __get_meta_page(sbi, index, true); | |
118 | if (IS_ERR(page)) { | |
119 | if (PTR_ERR(page) == -EIO && | |
120 | ++count <= DEFAULT_RETRY_IO_COUNT) | |
121 | goto retry; | |
7735730d | 122 | f2fs_stop_checkpoint(sbi, false); |
7735730d | 123 | } |
7735730d CY |
124 | return page; |
125 | } | |
126 | ||
2b947003 | 127 | /* for POR only */ |
4d57b86d | 128 | struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index) |
2b947003 CY |
129 | { |
130 | return __get_meta_page(sbi, index, false); | |
131 | } | |
132 | ||
e1da7872 | 133 | bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, |
4d57b86d | 134 | block_t blkaddr, int type) |
662befda CY |
135 | { |
136 | switch (type) { | |
137 | case META_NAT: | |
66b00c18 | 138 | break; |
662befda | 139 | case META_SIT: |
66b00c18 CY |
140 | if (unlikely(blkaddr >= SIT_BLK_CNT(sbi))) |
141 | return false; | |
142 | break; | |
81c1a0f1 | 143 | case META_SSA: |
66b00c18 CY |
144 | if (unlikely(blkaddr >= MAIN_BLKADDR(sbi) || |
145 | blkaddr < SM_I(sbi)->ssa_blkaddr)) | |
146 | return false; | |
147 | break; | |
662befda | 148 | case META_CP: |
66b00c18 CY |
149 | if (unlikely(blkaddr >= SIT_I(sbi)->sit_base_addr || |
150 | blkaddr < __start_cp_addr(sbi))) | |
151 | return false; | |
152 | break; | |
4c521f49 | 153 | case META_POR: |
e1da7872 | 154 | case DATA_GENERIC: |
66b00c18 | 155 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
c9b60788 CY |
156 | blkaddr < MAIN_BLKADDR(sbi))) { |
157 | if (type == DATA_GENERIC) { | |
158 | f2fs_msg(sbi->sb, KERN_WARNING, | |
159 | "access invalid blkaddr:%u", blkaddr); | |
160 | WARN_ON(1); | |
161 | } | |
66b00c18 | 162 | return false; |
c9b60788 | 163 | } |
66b00c18 | 164 | break; |
e1da7872 CY |
165 | case META_GENERIC: |
166 | if (unlikely(blkaddr < SEG0_BLKADDR(sbi) || | |
167 | blkaddr >= MAIN_BLKADDR(sbi))) | |
168 | return false; | |
169 | break; | |
662befda CY |
170 | default: |
171 | BUG(); | |
172 | } | |
66b00c18 CY |
173 | |
174 | return true; | |
662befda CY |
175 | } |
176 | ||
177 | /* | |
81c1a0f1 | 178 | * Readahead CP/NAT/SIT/SSA pages |
662befda | 179 | */ |
4d57b86d | 180 | int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, |
26879fb1 | 181 | int type, bool sync) |
662befda | 182 | { |
662befda | 183 | struct page *page; |
4c521f49 | 184 | block_t blkno = start; |
662befda | 185 | struct f2fs_io_info fio = { |
05ca3632 | 186 | .sbi = sbi, |
662befda | 187 | .type = META, |
04d328de | 188 | .op = REQ_OP_READ, |
70fd7614 | 189 | .op_flags = sync ? (REQ_META | REQ_PRIO) : REQ_RAHEAD, |
4375a336 | 190 | .encrypted_page = NULL, |
fb830fc5 | 191 | .in_list = false, |
0833721e | 192 | .is_meta = (type != META_POR), |
662befda | 193 | }; |
e9f5b8b8 | 194 | struct blk_plug plug; |
662befda | 195 | |
2b947003 | 196 | if (unlikely(type == META_POR)) |
04d328de | 197 | fio.op_flags &= ~REQ_META; |
2b947003 | 198 | |
e9f5b8b8 | 199 | blk_start_plug(&plug); |
662befda | 200 | for (; nrpages-- > 0; blkno++) { |
662befda | 201 | |
e1da7872 | 202 | if (!f2fs_is_valid_blkaddr(sbi, blkno, type)) |
66b00c18 CY |
203 | goto out; |
204 | ||
662befda CY |
205 | switch (type) { |
206 | case META_NAT: | |
66b00c18 CY |
207 | if (unlikely(blkno >= |
208 | NAT_BLOCK_OFFSET(NM_I(sbi)->max_nid))) | |
662befda | 209 | blkno = 0; |
66b00c18 | 210 | /* get nat block addr */ |
7a9d7548 | 211 | fio.new_blkaddr = current_nat_addr(sbi, |
662befda CY |
212 | blkno * NAT_ENTRY_PER_BLOCK); |
213 | break; | |
214 | case META_SIT: | |
215 | /* get sit block addr */ | |
7a9d7548 | 216 | fio.new_blkaddr = current_sit_addr(sbi, |
662befda | 217 | blkno * SIT_ENTRY_PER_BLOCK); |
662befda | 218 | break; |
81c1a0f1 | 219 | case META_SSA: |
662befda | 220 | case META_CP: |
4c521f49 | 221 | case META_POR: |
7a9d7548 | 222 | fio.new_blkaddr = blkno; |
662befda CY |
223 | break; |
224 | default: | |
225 | BUG(); | |
226 | } | |
227 | ||
300e129c JK |
228 | page = f2fs_grab_cache_page(META_MAPPING(sbi), |
229 | fio.new_blkaddr, false); | |
662befda CY |
230 | if (!page) |
231 | continue; | |
232 | if (PageUptodate(page)) { | |
662befda CY |
233 | f2fs_put_page(page, 1); |
234 | continue; | |
235 | } | |
236 | ||
05ca3632 | 237 | fio.page = page; |
1919ffc0 | 238 | f2fs_submit_page_bio(&fio); |
662befda CY |
239 | f2fs_put_page(page, 0); |
240 | } | |
241 | out: | |
e9f5b8b8 | 242 | blk_finish_plug(&plug); |
662befda CY |
243 | return blkno - start; |
244 | } | |
245 | ||
4d57b86d | 246 | void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index) |
635aee1f CY |
247 | { |
248 | struct page *page; | |
249 | bool readahead = false; | |
250 | ||
251 | page = find_get_page(META_MAPPING(sbi), index); | |
4da7bf5a | 252 | if (!page || !PageUptodate(page)) |
635aee1f CY |
253 | readahead = true; |
254 | f2fs_put_page(page, 0); | |
255 | ||
256 | if (readahead) | |
4d57b86d | 257 | f2fs_ra_meta_pages(sbi, index, BIO_MAX_PAGES, META_POR, true); |
635aee1f CY |
258 | } |
259 | ||
b0af6d49 CY |
260 | static int __f2fs_write_meta_page(struct page *page, |
261 | struct writeback_control *wbc, | |
262 | enum iostat_type io_type) | |
127e670a | 263 | { |
4081363f | 264 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
127e670a | 265 | |
ecda0de3 CY |
266 | trace_f2fs_writepage(page, META); |
267 | ||
af697c0f JK |
268 | if (unlikely(f2fs_cp_error(sbi))) |
269 | goto redirty_out; | |
caf0047e | 270 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
cfb271d4 | 271 | goto redirty_out; |
857dc4e0 | 272 | if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0)) |
cfb271d4 | 273 | goto redirty_out; |
127e670a | 274 | |
4d57b86d | 275 | f2fs_do_write_meta_page(sbi, page, io_type); |
577e3495 | 276 | dec_page_count(sbi, F2FS_DIRTY_META); |
0c3a5797 CY |
277 | |
278 | if (wbc->for_reclaim) | |
bab475c5 | 279 | f2fs_submit_merged_write_cond(sbi, NULL, page, 0, META); |
0c3a5797 | 280 | |
577e3495 | 281 | unlock_page(page); |
857dc4e0 | 282 | |
0c3a5797 | 283 | if (unlikely(f2fs_cp_error(sbi))) |
b9109b0e | 284 | f2fs_submit_merged_write(sbi, META); |
0c3a5797 | 285 | |
577e3495 | 286 | return 0; |
cfb271d4 CY |
287 | |
288 | redirty_out: | |
76f60268 | 289 | redirty_page_for_writepage(wbc, page); |
cfb271d4 | 290 | return AOP_WRITEPAGE_ACTIVATE; |
127e670a JK |
291 | } |
292 | ||
b0af6d49 CY |
293 | static int f2fs_write_meta_page(struct page *page, |
294 | struct writeback_control *wbc) | |
295 | { | |
296 | return __f2fs_write_meta_page(page, wbc, FS_META_IO); | |
297 | } | |
298 | ||
127e670a JK |
299 | static int f2fs_write_meta_pages(struct address_space *mapping, |
300 | struct writeback_control *wbc) | |
301 | { | |
4081363f | 302 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
50c8cdb3 | 303 | long diff, written; |
127e670a | 304 | |
0771fcc7 CY |
305 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
306 | goto skip_write; | |
307 | ||
5459aa97 | 308 | /* collect a number of dirty meta pages and write together */ |
50c8cdb3 JK |
309 | if (wbc->for_kupdate || |
310 | get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META)) | |
d3baf95d | 311 | goto skip_write; |
127e670a | 312 | |
a29d0e0b YH |
313 | /* if locked failed, cp will flush dirty pages instead */ |
314 | if (!mutex_trylock(&sbi->cp_mutex)) | |
315 | goto skip_write; | |
d31c7c3f | 316 | |
a29d0e0b | 317 | trace_f2fs_writepages(mapping->host, wbc, META); |
50c8cdb3 | 318 | diff = nr_pages_to_write(sbi, META, wbc); |
4d57b86d | 319 | written = f2fs_sync_meta_pages(sbi, META, wbc->nr_to_write, FS_META_IO); |
127e670a | 320 | mutex_unlock(&sbi->cp_mutex); |
50c8cdb3 | 321 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff); |
127e670a | 322 | return 0; |
d3baf95d JK |
323 | |
324 | skip_write: | |
325 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META); | |
d31c7c3f | 326 | trace_f2fs_writepages(mapping->host, wbc, META); |
d3baf95d | 327 | return 0; |
127e670a JK |
328 | } |
329 | ||
4d57b86d | 330 | long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, |
b0af6d49 | 331 | long nr_to_write, enum iostat_type io_type) |
127e670a | 332 | { |
9df27d98 | 333 | struct address_space *mapping = META_MAPPING(sbi); |
028a63a6 | 334 | pgoff_t index = 0, prev = ULONG_MAX; |
127e670a JK |
335 | struct pagevec pvec; |
336 | long nwritten = 0; | |
028a63a6 | 337 | int nr_pages; |
127e670a JK |
338 | struct writeback_control wbc = { |
339 | .for_reclaim = 0, | |
340 | }; | |
e9f5b8b8 | 341 | struct blk_plug plug; |
127e670a | 342 | |
86679820 | 343 | pagevec_init(&pvec); |
127e670a | 344 | |
e9f5b8b8 CY |
345 | blk_start_plug(&plug); |
346 | ||
028a63a6 | 347 | while ((nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, |
67fd707f | 348 | PAGECACHE_TAG_DIRTY))) { |
028a63a6 | 349 | int i; |
127e670a JK |
350 | |
351 | for (i = 0; i < nr_pages; i++) { | |
352 | struct page *page = pvec.pages[i]; | |
203681f6 | 353 | |
80dd9c0e | 354 | if (prev == ULONG_MAX) |
6066d8cd JK |
355 | prev = page->index - 1; |
356 | if (nr_to_write != LONG_MAX && page->index != prev + 1) { | |
357 | pagevec_release(&pvec); | |
358 | goto stop; | |
359 | } | |
360 | ||
127e670a | 361 | lock_page(page); |
203681f6 JK |
362 | |
363 | if (unlikely(page->mapping != mapping)) { | |
364 | continue_unlock: | |
365 | unlock_page(page); | |
366 | continue; | |
367 | } | |
368 | if (!PageDirty(page)) { | |
369 | /* someone wrote it for us */ | |
370 | goto continue_unlock; | |
371 | } | |
372 | ||
fa3d2bdf JK |
373 | f2fs_wait_on_page_writeback(page, META, true); |
374 | ||
375 | BUG_ON(PageWriteback(page)); | |
203681f6 JK |
376 | if (!clear_page_dirty_for_io(page)) |
377 | goto continue_unlock; | |
378 | ||
b0af6d49 | 379 | if (__f2fs_write_meta_page(page, &wbc, io_type)) { |
577e3495 JK |
380 | unlock_page(page); |
381 | break; | |
382 | } | |
cfb271d4 | 383 | nwritten++; |
6066d8cd | 384 | prev = page->index; |
cfb271d4 | 385 | if (unlikely(nwritten >= nr_to_write)) |
127e670a JK |
386 | break; |
387 | } | |
388 | pagevec_release(&pvec); | |
389 | cond_resched(); | |
390 | } | |
6066d8cd | 391 | stop: |
127e670a | 392 | if (nwritten) |
b9109b0e | 393 | f2fs_submit_merged_write(sbi, type); |
127e670a | 394 | |
e9f5b8b8 CY |
395 | blk_finish_plug(&plug); |
396 | ||
127e670a JK |
397 | return nwritten; |
398 | } | |
399 | ||
400 | static int f2fs_set_meta_page_dirty(struct page *page) | |
401 | { | |
26c6b887 JK |
402 | trace_f2fs_set_page_dirty(page, META); |
403 | ||
237c0790 JK |
404 | if (!PageUptodate(page)) |
405 | SetPageUptodate(page); | |
127e670a | 406 | if (!PageDirty(page)) { |
b87078ad | 407 | __set_page_dirty_nobuffers(page); |
4081363f | 408 | inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_META); |
1601839e | 409 | SetPagePrivate(page); |
9e4ded3f | 410 | f2fs_trace_pid(page); |
127e670a JK |
411 | return 1; |
412 | } | |
413 | return 0; | |
414 | } | |
415 | ||
416 | const struct address_space_operations f2fs_meta_aops = { | |
417 | .writepage = f2fs_write_meta_page, | |
418 | .writepages = f2fs_write_meta_pages, | |
419 | .set_page_dirty = f2fs_set_meta_page_dirty, | |
487261f3 CY |
420 | .invalidatepage = f2fs_invalidate_page, |
421 | .releasepage = f2fs_release_page, | |
5b7a487c WG |
422 | #ifdef CONFIG_MIGRATION |
423 | .migratepage = f2fs_migrate_page, | |
424 | #endif | |
127e670a JK |
425 | }; |
426 | ||
39d787be CY |
427 | static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, |
428 | unsigned int devidx, int type) | |
953e6cc6 | 429 | { |
67298804 | 430 | struct inode_management *im = &sbi->im[type]; |
80c54505 JK |
431 | struct ino_entry *e, *tmp; |
432 | ||
433 | tmp = f2fs_kmem_cache_alloc(ino_entry_slab, GFP_NOFS); | |
19526d74 | 434 | |
80c54505 | 435 | radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); |
769ec6e5 | 436 | |
67298804 | 437 | spin_lock(&im->ino_lock); |
67298804 | 438 | e = radix_tree_lookup(&im->ino_root, ino); |
39efac41 | 439 | if (!e) { |
80c54505 | 440 | e = tmp; |
19526d74 CY |
441 | if (unlikely(radix_tree_insert(&im->ino_root, ino, e))) |
442 | f2fs_bug_on(sbi, 1); | |
443 | ||
39efac41 JK |
444 | memset(e, 0, sizeof(struct ino_entry)); |
445 | e->ino = ino; | |
953e6cc6 | 446 | |
67298804 | 447 | list_add_tail(&e->list, &im->ino_list); |
8c402946 | 448 | if (type != ORPHAN_INO) |
67298804 | 449 | im->ino_num++; |
39efac41 | 450 | } |
39d787be CY |
451 | |
452 | if (type == FLUSH_INO) | |
453 | f2fs_set_bit(devidx, (char *)&e->dirty_device); | |
454 | ||
67298804 | 455 | spin_unlock(&im->ino_lock); |
769ec6e5 | 456 | radix_tree_preload_end(); |
80c54505 JK |
457 | |
458 | if (e != tmp) | |
459 | kmem_cache_free(ino_entry_slab, tmp); | |
953e6cc6 JK |
460 | } |
461 | ||
6451e041 | 462 | static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
953e6cc6 | 463 | { |
67298804 | 464 | struct inode_management *im = &sbi->im[type]; |
6451e041 | 465 | struct ino_entry *e; |
953e6cc6 | 466 | |
67298804 CY |
467 | spin_lock(&im->ino_lock); |
468 | e = radix_tree_lookup(&im->ino_root, ino); | |
39efac41 JK |
469 | if (e) { |
470 | list_del(&e->list); | |
67298804 CY |
471 | radix_tree_delete(&im->ino_root, ino); |
472 | im->ino_num--; | |
473 | spin_unlock(&im->ino_lock); | |
39efac41 JK |
474 | kmem_cache_free(ino_entry_slab, e); |
475 | return; | |
953e6cc6 | 476 | } |
67298804 | 477 | spin_unlock(&im->ino_lock); |
953e6cc6 JK |
478 | } |
479 | ||
4d57b86d | 480 | void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
481 | { |
482 | /* add new dirty ino entry into list */ | |
39d787be | 483 | __add_ino_entry(sbi, ino, 0, type); |
fff04f90 JK |
484 | } |
485 | ||
4d57b86d | 486 | void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
487 | { |
488 | /* remove dirty ino entry from list */ | |
489 | __remove_ino_entry(sbi, ino, type); | |
490 | } | |
491 | ||
492 | /* mode should be APPEND_INO or UPDATE_INO */ | |
4d57b86d | 493 | bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode) |
fff04f90 | 494 | { |
67298804 | 495 | struct inode_management *im = &sbi->im[mode]; |
fff04f90 | 496 | struct ino_entry *e; |
67298804 CY |
497 | |
498 | spin_lock(&im->ino_lock); | |
499 | e = radix_tree_lookup(&im->ino_root, ino); | |
500 | spin_unlock(&im->ino_lock); | |
fff04f90 JK |
501 | return e ? true : false; |
502 | } | |
503 | ||
4d57b86d | 504 | void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all) |
fff04f90 JK |
505 | { |
506 | struct ino_entry *e, *tmp; | |
507 | int i; | |
508 | ||
39d787be | 509 | for (i = all ? ORPHAN_INO : APPEND_INO; i < MAX_INO_ENTRY; i++) { |
67298804 CY |
510 | struct inode_management *im = &sbi->im[i]; |
511 | ||
512 | spin_lock(&im->ino_lock); | |
513 | list_for_each_entry_safe(e, tmp, &im->ino_list, list) { | |
fff04f90 | 514 | list_del(&e->list); |
67298804 | 515 | radix_tree_delete(&im->ino_root, e->ino); |
fff04f90 | 516 | kmem_cache_free(ino_entry_slab, e); |
67298804 | 517 | im->ino_num--; |
fff04f90 | 518 | } |
67298804 | 519 | spin_unlock(&im->ino_lock); |
fff04f90 JK |
520 | } |
521 | } | |
522 | ||
4d57b86d | 523 | void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
39d787be CY |
524 | unsigned int devidx, int type) |
525 | { | |
526 | __add_ino_entry(sbi, ino, devidx, type); | |
527 | } | |
528 | ||
4d57b86d | 529 | bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
39d787be CY |
530 | unsigned int devidx, int type) |
531 | { | |
532 | struct inode_management *im = &sbi->im[type]; | |
533 | struct ino_entry *e; | |
534 | bool is_dirty = false; | |
535 | ||
536 | spin_lock(&im->ino_lock); | |
537 | e = radix_tree_lookup(&im->ino_root, ino); | |
538 | if (e && f2fs_test_bit(devidx, (char *)&e->dirty_device)) | |
539 | is_dirty = true; | |
540 | spin_unlock(&im->ino_lock); | |
541 | return is_dirty; | |
542 | } | |
543 | ||
4d57b86d | 544 | int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi) |
127e670a | 545 | { |
67298804 | 546 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a JK |
547 | int err = 0; |
548 | ||
67298804 | 549 | spin_lock(&im->ino_lock); |
cb78942b | 550 | |
1ecc0c5c | 551 | if (time_to_inject(sbi, FAULT_ORPHAN)) { |
cb78942b | 552 | spin_unlock(&im->ino_lock); |
55523519 | 553 | f2fs_show_injection_info(FAULT_ORPHAN); |
cb78942b JK |
554 | return -ENOSPC; |
555 | } | |
7fa750a1 | 556 | |
67298804 | 557 | if (unlikely(im->ino_num >= sbi->max_orphans)) |
127e670a | 558 | err = -ENOSPC; |
cbd56e7d | 559 | else |
67298804 CY |
560 | im->ino_num++; |
561 | spin_unlock(&im->ino_lock); | |
0d47c1ad | 562 | |
127e670a JK |
563 | return err; |
564 | } | |
565 | ||
4d57b86d | 566 | void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi) |
cbd56e7d | 567 | { |
67298804 CY |
568 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
569 | ||
570 | spin_lock(&im->ino_lock); | |
571 | f2fs_bug_on(sbi, im->ino_num == 0); | |
572 | im->ino_num--; | |
573 | spin_unlock(&im->ino_lock); | |
cbd56e7d JK |
574 | } |
575 | ||
4d57b86d | 576 | void f2fs_add_orphan_inode(struct inode *inode) |
127e670a | 577 | { |
39efac41 | 578 | /* add new orphan ino entry into list */ |
39d787be | 579 | __add_ino_entry(F2FS_I_SB(inode), inode->i_ino, 0, ORPHAN_INO); |
4d57b86d | 580 | f2fs_update_inode_page(inode); |
127e670a JK |
581 | } |
582 | ||
4d57b86d | 583 | void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 584 | { |
953e6cc6 | 585 | /* remove orphan entry from orphan list */ |
6451e041 | 586 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
127e670a JK |
587 | } |
588 | ||
8c14bfad | 589 | static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 590 | { |
8c14bfad | 591 | struct inode *inode; |
5905f9af | 592 | struct node_info ni; |
76a45e3c | 593 | int err; |
8c14bfad | 594 | |
5905f9af | 595 | inode = f2fs_iget_retry(sbi->sb, ino); |
8c14bfad CY |
596 | if (IS_ERR(inode)) { |
597 | /* | |
598 | * there should be a bug that we can't find the entry | |
599 | * to orphan inode. | |
600 | */ | |
601 | f2fs_bug_on(sbi, PTR_ERR(inode) == -ENOENT); | |
602 | return PTR_ERR(inode); | |
603 | } | |
604 | ||
0f9ec2a8 | 605 | err = dquot_initialize(inode); |
a515d12f SY |
606 | if (err) { |
607 | iput(inode); | |
0f9ec2a8 | 608 | goto err_out; |
a515d12f | 609 | } |
0f9ec2a8 | 610 | |
127e670a JK |
611 | clear_nlink(inode); |
612 | ||
613 | /* truncate all the data during iput */ | |
614 | iput(inode); | |
5905f9af | 615 | |
7735730d CY |
616 | err = f2fs_get_node_info(sbi, ino, &ni); |
617 | if (err) | |
618 | goto err_out; | |
5905f9af JK |
619 | |
620 | /* ENOMEM was fully retried in f2fs_evict_inode. */ | |
621 | if (ni.blk_addr != NULL_ADDR) { | |
0f9ec2a8 JK |
622 | err = -EIO; |
623 | goto err_out; | |
5905f9af | 624 | } |
8c14bfad | 625 | return 0; |
0f9ec2a8 JK |
626 | |
627 | err_out: | |
628 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
629 | f2fs_msg(sbi->sb, KERN_WARNING, | |
630 | "%s: orphan failed (ino=%x), run fsck to fix.", | |
631 | __func__, ino); | |
632 | return err; | |
127e670a JK |
633 | } |
634 | ||
4d57b86d | 635 | int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi) |
127e670a | 636 | { |
3c642985 | 637 | block_t start_blk, orphan_blocks, i, j; |
4b2414d0 CY |
638 | unsigned int s_flags = sbi->sb->s_flags; |
639 | int err = 0; | |
ea676733 JK |
640 | #ifdef CONFIG_QUOTA |
641 | int quota_enabled; | |
642 | #endif | |
127e670a | 643 | |
aaec2b1d | 644 | if (!is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG)) |
8c14bfad | 645 | return 0; |
127e670a | 646 | |
1751e8a6 | 647 | if (s_flags & SB_RDONLY) { |
4b2414d0 | 648 | f2fs_msg(sbi->sb, KERN_INFO, "orphan cleanup on readonly fs"); |
1751e8a6 | 649 | sbi->sb->s_flags &= ~SB_RDONLY; |
4b2414d0 CY |
650 | } |
651 | ||
652 | #ifdef CONFIG_QUOTA | |
653 | /* Needed for iput() to work correctly and not trash data */ | |
1751e8a6 | 654 | sbi->sb->s_flags |= SB_ACTIVE; |
ea676733 | 655 | |
76cf05d7 SY |
656 | /* |
657 | * Turn on quotas which were not enabled for read-only mounts if | |
658 | * filesystem has quota feature, so that they are updated correctly. | |
659 | */ | |
1751e8a6 | 660 | quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY); |
4b2414d0 CY |
661 | #endif |
662 | ||
55141486 | 663 | start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi); |
3c642985 | 664 | orphan_blocks = __start_sum_addr(sbi) - 1 - __cp_payload(sbi); |
127e670a | 665 | |
4d57b86d | 666 | f2fs_ra_meta_pages(sbi, start_blk, orphan_blocks, META_CP, true); |
662befda | 667 | |
3c642985 | 668 | for (i = 0; i < orphan_blocks; i++) { |
7735730d | 669 | struct page *page; |
127e670a JK |
670 | struct f2fs_orphan_block *orphan_blk; |
671 | ||
7735730d CY |
672 | page = f2fs_get_meta_page(sbi, start_blk + i); |
673 | if (IS_ERR(page)) { | |
674 | err = PTR_ERR(page); | |
675 | goto out; | |
676 | } | |
677 | ||
127e670a JK |
678 | orphan_blk = (struct f2fs_orphan_block *)page_address(page); |
679 | for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) { | |
680 | nid_t ino = le32_to_cpu(orphan_blk->ino[j]); | |
8c14bfad CY |
681 | err = recover_orphan_inode(sbi, ino); |
682 | if (err) { | |
683 | f2fs_put_page(page, 1); | |
4b2414d0 | 684 | goto out; |
8c14bfad | 685 | } |
127e670a JK |
686 | } |
687 | f2fs_put_page(page, 1); | |
688 | } | |
689 | /* clear Orphan Flag */ | |
aaec2b1d | 690 | clear_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG); |
4b2414d0 | 691 | out: |
1378752b CY |
692 | set_sbi_flag(sbi, SBI_IS_RECOVERED); |
693 | ||
4b2414d0 CY |
694 | #ifdef CONFIG_QUOTA |
695 | /* Turn quotas off */ | |
ea676733 JK |
696 | if (quota_enabled) |
697 | f2fs_quota_off_umount(sbi->sb); | |
4b2414d0 | 698 | #endif |
1751e8a6 | 699 | sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */ |
4b2414d0 CY |
700 | |
701 | return err; | |
127e670a JK |
702 | } |
703 | ||
704 | static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk) | |
705 | { | |
502c6e0b | 706 | struct list_head *head; |
127e670a | 707 | struct f2fs_orphan_block *orphan_blk = NULL; |
127e670a | 708 | unsigned int nentries = 0; |
bd936f84 | 709 | unsigned short index = 1; |
8c402946 | 710 | unsigned short orphan_blocks; |
4531929e | 711 | struct page *page = NULL; |
6451e041 | 712 | struct ino_entry *orphan = NULL; |
67298804 | 713 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a | 714 | |
67298804 | 715 | orphan_blocks = GET_ORPHAN_BLOCKS(im->ino_num); |
8c402946 | 716 | |
d6c67a4f JK |
717 | /* |
718 | * we don't need to do spin_lock(&im->ino_lock) here, since all the | |
719 | * orphan inode operations are covered under f2fs_lock_op(). | |
720 | * And, spin_lock should be avoided due to page operations below. | |
721 | */ | |
67298804 | 722 | head = &im->ino_list; |
127e670a JK |
723 | |
724 | /* loop for each orphan inode entry and write them in Jornal block */ | |
502c6e0b GZ |
725 | list_for_each_entry(orphan, head, list) { |
726 | if (!page) { | |
4d57b86d | 727 | page = f2fs_grab_meta_page(sbi, start_blk++); |
502c6e0b GZ |
728 | orphan_blk = |
729 | (struct f2fs_orphan_block *)page_address(page); | |
730 | memset(orphan_blk, 0, sizeof(*orphan_blk)); | |
731 | } | |
127e670a | 732 | |
36795567 | 733 | orphan_blk->ino[nentries++] = cpu_to_le32(orphan->ino); |
127e670a | 734 | |
36795567 | 735 | if (nentries == F2FS_ORPHANS_PER_BLOCK) { |
127e670a JK |
736 | /* |
737 | * an orphan block is full of 1020 entries, | |
738 | * then we need to flush current orphan blocks | |
739 | * and bring another one in memory | |
740 | */ | |
741 | orphan_blk->blk_addr = cpu_to_le16(index); | |
742 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
743 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
744 | set_page_dirty(page); | |
745 | f2fs_put_page(page, 1); | |
746 | index++; | |
127e670a JK |
747 | nentries = 0; |
748 | page = NULL; | |
749 | } | |
502c6e0b | 750 | } |
127e670a | 751 | |
502c6e0b GZ |
752 | if (page) { |
753 | orphan_blk->blk_addr = cpu_to_le16(index); | |
754 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
755 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
756 | set_page_dirty(page); | |
757 | f2fs_put_page(page, 1); | |
127e670a | 758 | } |
127e670a JK |
759 | } |
760 | ||
fc0065ad TY |
761 | static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr, |
762 | struct f2fs_checkpoint **cp_block, struct page **cp_page, | |
763 | unsigned long long *version) | |
127e670a | 764 | { |
127e670a | 765 | unsigned long blk_size = sbi->blocksize; |
fc0065ad | 766 | size_t crc_offset = 0; |
7e586fa0 | 767 | __u32 crc = 0; |
127e670a | 768 | |
4d57b86d | 769 | *cp_page = f2fs_get_meta_page(sbi, cp_addr); |
7735730d CY |
770 | if (IS_ERR(*cp_page)) |
771 | return PTR_ERR(*cp_page); | |
772 | ||
fc0065ad | 773 | *cp_block = (struct f2fs_checkpoint *)page_address(*cp_page); |
127e670a | 774 | |
fc0065ad | 775 | crc_offset = le32_to_cpu((*cp_block)->checksum_offset); |
c6f89dfd | 776 | if (crc_offset > (blk_size - sizeof(__le32))) { |
d3f07c04 | 777 | f2fs_put_page(*cp_page, 1); |
fc0065ad TY |
778 | f2fs_msg(sbi->sb, KERN_WARNING, |
779 | "invalid crc_offset: %zu", crc_offset); | |
780 | return -EINVAL; | |
781 | } | |
127e670a | 782 | |
ced2c7ea | 783 | crc = cur_cp_crc(*cp_block); |
fc0065ad | 784 | if (!f2fs_crc_valid(sbi, crc, *cp_block, crc_offset)) { |
d3f07c04 | 785 | f2fs_put_page(*cp_page, 1); |
fc0065ad TY |
786 | f2fs_msg(sbi->sb, KERN_WARNING, "invalid crc value"); |
787 | return -EINVAL; | |
788 | } | |
127e670a | 789 | |
fc0065ad TY |
790 | *version = cur_cp_version(*cp_block); |
791 | return 0; | |
792 | } | |
127e670a | 793 | |
fc0065ad TY |
794 | static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, |
795 | block_t cp_addr, unsigned long long *version) | |
796 | { | |
797 | struct page *cp_page_1 = NULL, *cp_page_2 = NULL; | |
798 | struct f2fs_checkpoint *cp_block = NULL; | |
799 | unsigned long long cur_version = 0, pre_version = 0; | |
800 | int err; | |
127e670a | 801 | |
fc0065ad TY |
802 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
803 | &cp_page_1, version); | |
804 | if (err) | |
d3f07c04 | 805 | return NULL; |
c9b60788 CY |
806 | |
807 | if (le32_to_cpu(cp_block->cp_pack_total_block_count) > | |
808 | sbi->blocks_per_seg) { | |
809 | f2fs_msg(sbi->sb, KERN_WARNING, | |
810 | "invalid cp_pack_total_block_count:%u", | |
811 | le32_to_cpu(cp_block->cp_pack_total_block_count)); | |
d3f07c04 | 812 | goto invalid_cp; |
c9b60788 | 813 | } |
fc0065ad | 814 | pre_version = *version; |
127e670a | 815 | |
fc0065ad TY |
816 | cp_addr += le32_to_cpu(cp_block->cp_pack_total_block_count) - 1; |
817 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, | |
818 | &cp_page_2, version); | |
819 | if (err) | |
d3f07c04 | 820 | goto invalid_cp; |
fc0065ad | 821 | cur_version = *version; |
127e670a JK |
822 | |
823 | if (cur_version == pre_version) { | |
824 | *version = cur_version; | |
825 | f2fs_put_page(cp_page_2, 1); | |
826 | return cp_page_1; | |
827 | } | |
127e670a | 828 | f2fs_put_page(cp_page_2, 1); |
d3f07c04 | 829 | invalid_cp: |
127e670a JK |
830 | f2fs_put_page(cp_page_1, 1); |
831 | return NULL; | |
832 | } | |
833 | ||
4d57b86d | 834 | int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi) |
127e670a JK |
835 | { |
836 | struct f2fs_checkpoint *cp_block; | |
837 | struct f2fs_super_block *fsb = sbi->raw_super; | |
838 | struct page *cp1, *cp2, *cur_page; | |
839 | unsigned long blk_size = sbi->blocksize; | |
840 | unsigned long long cp1_version = 0, cp2_version = 0; | |
841 | unsigned long long cp_start_blk_no; | |
55141486 | 842 | unsigned int cp_blks = 1 + __cp_payload(sbi); |
1dbe4152 CL |
843 | block_t cp_blk_no; |
844 | int i; | |
127e670a | 845 | |
026f0507 KC |
846 | sbi->ckpt = f2fs_kzalloc(sbi, array_size(blk_size, cp_blks), |
847 | GFP_KERNEL); | |
127e670a JK |
848 | if (!sbi->ckpt) |
849 | return -ENOMEM; | |
850 | /* | |
851 | * Finding out valid cp block involves read both | |
852 | * sets( cp pack1 and cp pack 2) | |
853 | */ | |
854 | cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
855 | cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version); | |
856 | ||
857 | /* The second checkpoint pack should start at the next segment */ | |
f9a4e6df JK |
858 | cp_start_blk_no += ((unsigned long long)1) << |
859 | le32_to_cpu(fsb->log_blocks_per_seg); | |
127e670a JK |
860 | cp2 = validate_checkpoint(sbi, cp_start_blk_no, &cp2_version); |
861 | ||
862 | if (cp1 && cp2) { | |
863 | if (ver_after(cp2_version, cp1_version)) | |
864 | cur_page = cp2; | |
865 | else | |
866 | cur_page = cp1; | |
867 | } else if (cp1) { | |
868 | cur_page = cp1; | |
869 | } else if (cp2) { | |
870 | cur_page = cp2; | |
871 | } else { | |
872 | goto fail_no_cp; | |
873 | } | |
874 | ||
875 | cp_block = (struct f2fs_checkpoint *)page_address(cur_page); | |
876 | memcpy(sbi->ckpt, cp_block, blk_size); | |
877 | ||
8508e44a JK |
878 | if (cur_page == cp1) |
879 | sbi->cur_cp_pack = 1; | |
880 | else | |
881 | sbi->cur_cp_pack = 2; | |
984ec63c | 882 | |
e494c2f9 CY |
883 | /* Sanity checking of checkpoint */ |
884 | if (f2fs_sanity_check_ckpt(sbi)) | |
885 | goto free_fail_no_cp; | |
886 | ||
1dbe4152 CL |
887 | if (cp_blks <= 1) |
888 | goto done; | |
889 | ||
890 | cp_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
891 | if (cur_page == cp2) | |
892 | cp_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg); | |
893 | ||
894 | for (i = 1; i < cp_blks; i++) { | |
895 | void *sit_bitmap_ptr; | |
896 | unsigned char *ckpt = (unsigned char *)sbi->ckpt; | |
897 | ||
4d57b86d | 898 | cur_page = f2fs_get_meta_page(sbi, cp_blk_no + i); |
7735730d CY |
899 | if (IS_ERR(cur_page)) |
900 | goto free_fail_no_cp; | |
1dbe4152 CL |
901 | sit_bitmap_ptr = page_address(cur_page); |
902 | memcpy(ckpt + i * blk_size, sit_bitmap_ptr, blk_size); | |
903 | f2fs_put_page(cur_page, 1); | |
904 | } | |
905 | done: | |
127e670a JK |
906 | f2fs_put_page(cp1, 1); |
907 | f2fs_put_page(cp2, 1); | |
908 | return 0; | |
909 | ||
a2125ff7 JK |
910 | free_fail_no_cp: |
911 | f2fs_put_page(cp1, 1); | |
912 | f2fs_put_page(cp2, 1); | |
127e670a | 913 | fail_no_cp: |
5222595d | 914 | kvfree(sbi->ckpt); |
127e670a JK |
915 | return -EINVAL; |
916 | } | |
917 | ||
c227f912 | 918 | static void __add_dirty_inode(struct inode *inode, enum inode_type type) |
127e670a | 919 | { |
4081363f | 920 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 921 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
127e670a | 922 | |
91942321 | 923 | if (is_inode_flag_set(inode, flag)) |
2710fd7e | 924 | return; |
2d7b822a | 925 | |
91942321 | 926 | set_inode_flag(inode, flag); |
99f4b917 CY |
927 | if (!f2fs_is_volatile_file(inode)) |
928 | list_add_tail(&F2FS_I(inode)->dirty_list, | |
929 | &sbi->inode_list[type]); | |
33fbd510 | 930 | stat_inc_dirty_inode(sbi, type); |
5deb8267 JK |
931 | } |
932 | ||
c227f912 | 933 | static void __remove_dirty_inode(struct inode *inode, enum inode_type type) |
6ad7609a | 934 | { |
c227f912 | 935 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
6ad7609a | 936 | |
91942321 | 937 | if (get_dirty_pages(inode) || !is_inode_flag_set(inode, flag)) |
6ad7609a CY |
938 | return; |
939 | ||
91942321 JK |
940 | list_del_init(&F2FS_I(inode)->dirty_list); |
941 | clear_inode_flag(inode, flag); | |
33fbd510 | 942 | stat_dec_dirty_inode(F2FS_I_SB(inode), type); |
6ad7609a CY |
943 | } |
944 | ||
4d57b86d | 945 | void f2fs_update_dirty_page(struct inode *inode, struct page *page) |
5deb8267 | 946 | { |
4081363f | 947 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 948 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
5deb8267 | 949 | |
5ac9f36f CY |
950 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
951 | !S_ISLNK(inode->i_mode)) | |
127e670a | 952 | return; |
7bd59381 | 953 | |
1c4bf763 JK |
954 | spin_lock(&sbi->inode_lock[type]); |
955 | if (type != FILE_INODE || test_opt(sbi, DATA_FLUSH)) | |
10aa97c3 | 956 | __add_dirty_inode(inode, type); |
b951a4ec | 957 | inode_inc_dirty_pages(inode); |
1c4bf763 JK |
958 | spin_unlock(&sbi->inode_lock[type]); |
959 | ||
a7ffdbe2 | 960 | SetPagePrivate(page); |
9e4ded3f | 961 | f2fs_trace_pid(page); |
5deb8267 JK |
962 | } |
963 | ||
4d57b86d | 964 | void f2fs_remove_dirty_inode(struct inode *inode) |
127e670a | 965 | { |
4081363f | 966 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 967 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
127e670a | 968 | |
c227f912 CY |
969 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
970 | !S_ISLNK(inode->i_mode)) | |
127e670a JK |
971 | return; |
972 | ||
10aa97c3 JK |
973 | if (type == FILE_INODE && !test_opt(sbi, DATA_FLUSH)) |
974 | return; | |
975 | ||
c227f912 CY |
976 | spin_lock(&sbi->inode_lock[type]); |
977 | __remove_dirty_inode(inode, type); | |
978 | spin_unlock(&sbi->inode_lock[type]); | |
74d0b917 JK |
979 | } |
980 | ||
4d57b86d | 981 | int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type) |
127e670a | 982 | { |
ce3b7d80 | 983 | struct list_head *head; |
127e670a | 984 | struct inode *inode; |
2710fd7e | 985 | struct f2fs_inode_info *fi; |
4cf18537 | 986 | bool is_dir = (type == DIR_INODE); |
4db08d01 | 987 | unsigned long ino = 0; |
4cf18537 CY |
988 | |
989 | trace_f2fs_sync_dirty_inodes_enter(sbi->sb, is_dir, | |
990 | get_pages(sbi, is_dir ? | |
991 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
127e670a | 992 | retry: |
af41d3ee | 993 | if (unlikely(f2fs_cp_error(sbi))) |
6d5a1495 | 994 | return -EIO; |
af41d3ee | 995 | |
c227f912 | 996 | spin_lock(&sbi->inode_lock[type]); |
ce3b7d80 | 997 | |
c227f912 | 998 | head = &sbi->inode_list[type]; |
127e670a | 999 | if (list_empty(head)) { |
c227f912 | 1000 | spin_unlock(&sbi->inode_lock[type]); |
4cf18537 CY |
1001 | trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir, |
1002 | get_pages(sbi, is_dir ? | |
1003 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
6d5a1495 | 1004 | return 0; |
127e670a | 1005 | } |
939afa94 | 1006 | fi = list_first_entry(head, struct f2fs_inode_info, dirty_list); |
2710fd7e | 1007 | inode = igrab(&fi->vfs_inode); |
c227f912 | 1008 | spin_unlock(&sbi->inode_lock[type]); |
127e670a | 1009 | if (inode) { |
4db08d01 JK |
1010 | unsigned long cur_ino = inode->i_ino; |
1011 | ||
b0af6d49 CY |
1012 | if (is_dir) |
1013 | F2FS_I(inode)->cp_task = current; | |
1014 | ||
87d6f890 | 1015 | filemap_fdatawrite(inode->i_mapping); |
b0af6d49 CY |
1016 | |
1017 | if (is_dir) | |
1018 | F2FS_I(inode)->cp_task = NULL; | |
1019 | ||
127e670a | 1020 | iput(inode); |
4db08d01 | 1021 | /* We need to give cpu to another writers. */ |
2a63531a | 1022 | if (ino == cur_ino) |
4db08d01 | 1023 | cond_resched(); |
2a63531a | 1024 | else |
4db08d01 | 1025 | ino = cur_ino; |
127e670a JK |
1026 | } else { |
1027 | /* | |
1028 | * We should submit bio, since it exists several | |
1029 | * wribacking dentry pages in the freeing inode. | |
1030 | */ | |
b9109b0e | 1031 | f2fs_submit_merged_write(sbi, DATA); |
7ecebe5e | 1032 | cond_resched(); |
127e670a JK |
1033 | } |
1034 | goto retry; | |
1035 | } | |
1036 | ||
0f18b462 JK |
1037 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi) |
1038 | { | |
1039 | struct list_head *head = &sbi->inode_list[DIRTY_META]; | |
1040 | struct inode *inode; | |
1041 | struct f2fs_inode_info *fi; | |
1042 | s64 total = get_pages(sbi, F2FS_DIRTY_IMETA); | |
1043 | ||
1044 | while (total--) { | |
1045 | if (unlikely(f2fs_cp_error(sbi))) | |
1046 | return -EIO; | |
1047 | ||
1048 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
1049 | if (list_empty(head)) { | |
1050 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1051 | return 0; | |
1052 | } | |
939afa94 | 1053 | fi = list_first_entry(head, struct f2fs_inode_info, |
0f18b462 JK |
1054 | gdirty_list); |
1055 | inode = igrab(&fi->vfs_inode); | |
1056 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1057 | if (inode) { | |
18340edc JK |
1058 | sync_inode_metadata(inode, 0); |
1059 | ||
1060 | /* it's on eviction */ | |
1061 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) | |
4d57b86d | 1062 | f2fs_update_inode_page(inode); |
0f18b462 JK |
1063 | iput(inode); |
1064 | } | |
dee668c1 | 1065 | } |
0f18b462 JK |
1066 | return 0; |
1067 | } | |
1068 | ||
59c9081b YH |
1069 | static void __prepare_cp_block(struct f2fs_sb_info *sbi) |
1070 | { | |
1071 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1072 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
1073 | nid_t last_nid = nm_i->next_scan_nid; | |
1074 | ||
1075 | next_free_nid(sbi, &last_nid); | |
1076 | ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi)); | |
1077 | ckpt->valid_node_count = cpu_to_le32(valid_node_count(sbi)); | |
1078 | ckpt->valid_inode_count = cpu_to_le32(valid_inode_count(sbi)); | |
1079 | ckpt->next_free_nid = cpu_to_le32(last_nid); | |
1080 | } | |
1081 | ||
af033b2a CY |
1082 | static bool __need_flush_quota(struct f2fs_sb_info *sbi) |
1083 | { | |
1084 | if (!is_journalled_quota(sbi)) | |
1085 | return false; | |
1086 | if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) | |
1087 | return false; | |
1088 | if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) | |
1089 | return false; | |
1090 | if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_FLUSH)) | |
1091 | return true; | |
1092 | if (get_pages(sbi, F2FS_DIRTY_QDATA)) | |
1093 | return true; | |
1094 | return false; | |
1095 | } | |
1096 | ||
0a8165d7 | 1097 | /* |
127e670a JK |
1098 | * Freeze all the FS-operations for checkpoint. |
1099 | */ | |
cf779cab | 1100 | static int block_operations(struct f2fs_sb_info *sbi) |
127e670a | 1101 | { |
127e670a JK |
1102 | struct writeback_control wbc = { |
1103 | .sync_mode = WB_SYNC_ALL, | |
1104 | .nr_to_write = LONG_MAX, | |
1105 | .for_reclaim = 0, | |
1106 | }; | |
c718379b | 1107 | struct blk_plug plug; |
af033b2a | 1108 | int err = 0, cnt = 0; |
c718379b JK |
1109 | |
1110 | blk_start_plug(&plug); | |
1111 | ||
af033b2a CY |
1112 | retry_flush_quotas: |
1113 | if (__need_flush_quota(sbi)) { | |
1114 | int locked; | |
1115 | ||
1116 | if (++cnt > DEFAULT_RETRY_QUOTA_FLUSH_COUNT) { | |
1117 | set_sbi_flag(sbi, SBI_QUOTA_SKIP_FLUSH); | |
1118 | f2fs_lock_all(sbi); | |
1119 | goto retry_flush_dents; | |
1120 | } | |
1121 | clear_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH); | |
1122 | ||
1123 | /* only failed during mount/umount/freeze/quotactl */ | |
1124 | locked = down_read_trylock(&sbi->sb->s_umount); | |
1125 | f2fs_quota_sync(sbi->sb, -1); | |
1126 | if (locked) | |
1127 | up_read(&sbi->sb->s_umount); | |
1128 | } | |
1129 | ||
e479556b | 1130 | f2fs_lock_all(sbi); |
af033b2a CY |
1131 | if (__need_flush_quota(sbi)) { |
1132 | f2fs_unlock_all(sbi); | |
1133 | cond_resched(); | |
1134 | goto retry_flush_quotas; | |
1135 | } | |
1136 | ||
1137 | retry_flush_dents: | |
127e670a | 1138 | /* write all the dirty dentry pages */ |
127e670a | 1139 | if (get_pages(sbi, F2FS_DIRTY_DENTS)) { |
e479556b | 1140 | f2fs_unlock_all(sbi); |
4d57b86d | 1141 | err = f2fs_sync_dirty_inodes(sbi, DIR_INODE); |
6d5a1495 | 1142 | if (err) |
cf779cab | 1143 | goto out; |
30973883 | 1144 | cond_resched(); |
af033b2a | 1145 | goto retry_flush_quotas; |
127e670a JK |
1146 | } |
1147 | ||
59c9081b YH |
1148 | /* |
1149 | * POR: we should ensure that there are no dirty node pages | |
1150 | * until finishing nat/sit flush. inode->i_blocks can be updated. | |
1151 | */ | |
1152 | down_write(&sbi->node_change); | |
1153 | ||
af033b2a CY |
1154 | if (__need_flush_quota(sbi)) { |
1155 | up_write(&sbi->node_change); | |
1156 | f2fs_unlock_all(sbi); | |
1157 | goto retry_flush_quotas; | |
1158 | } | |
1159 | ||
0f18b462 | 1160 | if (get_pages(sbi, F2FS_DIRTY_IMETA)) { |
59c9081b | 1161 | up_write(&sbi->node_change); |
0f18b462 JK |
1162 | f2fs_unlock_all(sbi); |
1163 | err = f2fs_sync_inode_meta(sbi); | |
1164 | if (err) | |
1165 | goto out; | |
30973883 | 1166 | cond_resched(); |
af033b2a | 1167 | goto retry_flush_quotas; |
0f18b462 JK |
1168 | } |
1169 | ||
39936837 | 1170 | retry_flush_nodes: |
b3582c68 | 1171 | down_write(&sbi->node_write); |
127e670a JK |
1172 | |
1173 | if (get_pages(sbi, F2FS_DIRTY_NODES)) { | |
b3582c68 | 1174 | up_write(&sbi->node_write); |
c29fd0c0 | 1175 | atomic_inc(&sbi->wb_sync_req[NODE]); |
4d57b86d | 1176 | err = f2fs_sync_node_pages(sbi, &wbc, false, FS_CP_NODE_IO); |
c29fd0c0 | 1177 | atomic_dec(&sbi->wb_sync_req[NODE]); |
6d5a1495 | 1178 | if (err) { |
59c9081b | 1179 | up_write(&sbi->node_change); |
cf779cab | 1180 | f2fs_unlock_all(sbi); |
cf779cab JK |
1181 | goto out; |
1182 | } | |
30973883 | 1183 | cond_resched(); |
39936837 | 1184 | goto retry_flush_nodes; |
127e670a | 1185 | } |
59c9081b YH |
1186 | |
1187 | /* | |
1188 | * sbi->node_change is used only for AIO write_begin path which produces | |
1189 | * dirty node blocks and some checkpoint values by block allocation. | |
1190 | */ | |
1191 | __prepare_cp_block(sbi); | |
1192 | up_write(&sbi->node_change); | |
cf779cab | 1193 | out: |
c718379b | 1194 | blk_finish_plug(&plug); |
cf779cab | 1195 | return err; |
127e670a JK |
1196 | } |
1197 | ||
1198 | static void unblock_operations(struct f2fs_sb_info *sbi) | |
1199 | { | |
b3582c68 | 1200 | up_write(&sbi->node_write); |
e479556b | 1201 | f2fs_unlock_all(sbi); |
127e670a JK |
1202 | } |
1203 | ||
50fa53ec | 1204 | void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi) |
fb51b5ef CL |
1205 | { |
1206 | DEFINE_WAIT(wait); | |
1207 | ||
1208 | for (;;) { | |
1209 | prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE); | |
1210 | ||
36951b38 | 1211 | if (!get_pages(sbi, F2FS_WB_CP_DATA)) |
fb51b5ef CL |
1212 | break; |
1213 | ||
af697c0f JK |
1214 | if (unlikely(f2fs_cp_error(sbi))) |
1215 | break; | |
1216 | ||
0ff21646 | 1217 | io_schedule_timeout(5*HZ); |
fb51b5ef CL |
1218 | } |
1219 | finish_wait(&sbi->cp_wait, &wait); | |
1220 | } | |
1221 | ||
e4c5d848 JK |
1222 | static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
1223 | { | |
1224 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num; | |
1225 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d1aa2453 | 1226 | unsigned long flags; |
e4c5d848 | 1227 | |
d1aa2453 | 1228 | spin_lock_irqsave(&sbi->cp_lock, flags); |
e4c5d848 | 1229 | |
c473f1a9 | 1230 | if ((cpc->reason & CP_UMOUNT) && |
10047f53 | 1231 | le32_to_cpu(ckpt->cp_pack_total_block_count) > |
22ad0b6a JK |
1232 | sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) |
1233 | disable_nat_bits(sbi, false); | |
1234 | ||
1f43e2ad CY |
1235 | if (cpc->reason & CP_TRIMMED) |
1236 | __set_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
cd36d7a1 CY |
1237 | else |
1238 | __clear_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
1f43e2ad | 1239 | |
c473f1a9 | 1240 | if (cpc->reason & CP_UMOUNT) |
e4c5d848 JK |
1241 | __set_ckpt_flags(ckpt, CP_UMOUNT_FLAG); |
1242 | else | |
1243 | __clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG); | |
1244 | ||
c473f1a9 | 1245 | if (cpc->reason & CP_FASTBOOT) |
e4c5d848 JK |
1246 | __set_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); |
1247 | else | |
1248 | __clear_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); | |
1249 | ||
1250 | if (orphan_num) | |
1251 | __set_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1252 | else | |
1253 | __clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1254 | ||
1255 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) | |
1256 | __set_ckpt_flags(ckpt, CP_FSCK_FLAG); | |
1257 | ||
4354994f DR |
1258 | if (is_sbi_flag_set(sbi, SBI_CP_DISABLED)) |
1259 | __set_ckpt_flags(ckpt, CP_DISABLED_FLAG); | |
1260 | else | |
1261 | __clear_ckpt_flags(ckpt, CP_DISABLED_FLAG); | |
1262 | ||
af033b2a CY |
1263 | if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) |
1264 | __set_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
1265 | else | |
1266 | __clear_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
1267 | ||
1268 | if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) | |
1269 | __set_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
1270 | ||
e4c5d848 JK |
1271 | /* set this flag to activate crc|cp_ver for recovery */ |
1272 | __set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG); | |
f2367923 | 1273 | __clear_ckpt_flags(ckpt, CP_NOCRC_RECOVERY_FLAG); |
e4c5d848 | 1274 | |
d1aa2453 | 1275 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
e4c5d848 JK |
1276 | } |
1277 | ||
46706d59 GX |
1278 | static void commit_checkpoint(struct f2fs_sb_info *sbi, |
1279 | void *src, block_t blk_addr) | |
1280 | { | |
1281 | struct writeback_control wbc = { | |
1282 | .for_reclaim = 0, | |
1283 | }; | |
1284 | ||
1285 | /* | |
1286 | * pagevec_lookup_tag and lock_page again will take | |
4d57b86d CY |
1287 | * some extra time. Therefore, f2fs_update_meta_pages and |
1288 | * f2fs_sync_meta_pages are combined in this function. | |
46706d59 | 1289 | */ |
4d57b86d | 1290 | struct page *page = f2fs_grab_meta_page(sbi, blk_addr); |
46706d59 GX |
1291 | int err; |
1292 | ||
46706d59 GX |
1293 | f2fs_wait_on_page_writeback(page, META, true); |
1294 | f2fs_bug_on(sbi, PageWriteback(page)); | |
8d64d365 CY |
1295 | |
1296 | memcpy(page_address(page), src, PAGE_SIZE); | |
1297 | ||
1298 | set_page_dirty(page); | |
46706d59 GX |
1299 | if (unlikely(!clear_page_dirty_for_io(page))) |
1300 | f2fs_bug_on(sbi, 1); | |
1301 | ||
1302 | /* writeout cp pack 2 page */ | |
1303 | err = __f2fs_write_meta_page(page, &wbc, FS_CP_META_IO); | |
af697c0f JK |
1304 | if (unlikely(err && f2fs_cp_error(sbi))) { |
1305 | f2fs_put_page(page, 1); | |
1306 | return; | |
1307 | } | |
46706d59 | 1308 | |
af697c0f | 1309 | f2fs_bug_on(sbi, err); |
46706d59 GX |
1310 | f2fs_put_page(page, 0); |
1311 | ||
1312 | /* submit checkpoint (with barrier if NOBARRIER is not set) */ | |
1313 | f2fs_submit_merged_write(sbi, META_FLUSH); | |
1314 | } | |
1315 | ||
c34f42e2 | 1316 | static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1317 | { |
1318 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
77041823 | 1319 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
d1aa2453 | 1320 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num, flags; |
127e670a | 1321 | block_t start_blk; |
127e670a | 1322 | unsigned int data_sum_blocks, orphan_blocks; |
7e586fa0 | 1323 | __u32 crc32 = 0; |
127e670a | 1324 | int i; |
55141486 | 1325 | int cp_payload_blks = __cp_payload(sbi); |
8f1dbbbb SL |
1326 | struct super_block *sb = sbi->sb; |
1327 | struct curseg_info *seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
1328 | u64 kbytes_written; | |
1228b482 | 1329 | int err; |
127e670a JK |
1330 | |
1331 | /* Flush all the NAT/SIT pages */ | |
8ec18bff CY |
1332 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
1333 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_META) && | |
1334 | !f2fs_cp_error(sbi)); | |
127e670a | 1335 | |
127e670a JK |
1336 | /* |
1337 | * modify checkpoint | |
1338 | * version number is already updated | |
1339 | */ | |
a1f72ac2 | 1340 | ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi, true)); |
127e670a | 1341 | ckpt->free_segment_count = cpu_to_le32(free_segments(sbi)); |
b5b82205 | 1342 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
127e670a JK |
1343 | ckpt->cur_node_segno[i] = |
1344 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE)); | |
1345 | ckpt->cur_node_blkoff[i] = | |
1346 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_NODE)); | |
1347 | ckpt->alloc_type[i + CURSEG_HOT_NODE] = | |
1348 | curseg_alloc_type(sbi, i + CURSEG_HOT_NODE); | |
1349 | } | |
b5b82205 | 1350 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { |
127e670a JK |
1351 | ckpt->cur_data_segno[i] = |
1352 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA)); | |
1353 | ckpt->cur_data_blkoff[i] = | |
1354 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_DATA)); | |
1355 | ckpt->alloc_type[i + CURSEG_HOT_DATA] = | |
1356 | curseg_alloc_type(sbi, i + CURSEG_HOT_DATA); | |
1357 | } | |
1358 | ||
127e670a | 1359 | /* 2 cp + n data seg summary + orphan inode blocks */ |
4d57b86d | 1360 | data_sum_blocks = f2fs_npages_for_summary_flush(sbi, false); |
d1aa2453 | 1361 | spin_lock_irqsave(&sbi->cp_lock, flags); |
b5b82205 | 1362 | if (data_sum_blocks < NR_CURSEG_DATA_TYPE) |
aaec2b1d | 1363 | __set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
127e670a | 1364 | else |
aaec2b1d | 1365 | __clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
d1aa2453 | 1366 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
127e670a | 1367 | |
67298804 | 1368 | orphan_blocks = GET_ORPHAN_BLOCKS(orphan_num); |
1dbe4152 CL |
1369 | ckpt->cp_pack_start_sum = cpu_to_le32(1 + cp_payload_blks + |
1370 | orphan_blocks); | |
127e670a | 1371 | |
119ee914 | 1372 | if (__remain_node_summaries(cpc->reason)) |
b5b82205 | 1373 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS+ |
1dbe4152 CL |
1374 | cp_payload_blks + data_sum_blocks + |
1375 | orphan_blocks + NR_CURSEG_NODE_TYPE); | |
119ee914 | 1376 | else |
b5b82205 | 1377 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
1dbe4152 CL |
1378 | cp_payload_blks + data_sum_blocks + |
1379 | orphan_blocks); | |
119ee914 | 1380 | |
e4c5d848 JK |
1381 | /* update ckpt flag for checkpoint */ |
1382 | update_ckpt_flags(sbi, cpc); | |
a468f0ef | 1383 | |
127e670a JK |
1384 | /* update SIT/NAT bitmap */ |
1385 | get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP)); | |
1386 | get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP)); | |
1387 | ||
43b6573b | 1388 | crc32 = f2fs_crc32(sbi, ckpt, le32_to_cpu(ckpt->checksum_offset)); |
7e586fa0 JK |
1389 | *((__le32 *)((unsigned char *)ckpt + |
1390 | le32_to_cpu(ckpt->checksum_offset))) | |
127e670a JK |
1391 | = cpu_to_le32(crc32); |
1392 | ||
8508e44a | 1393 | start_blk = __start_cp_next_addr(sbi); |
127e670a | 1394 | |
22ad0b6a JK |
1395 | /* write nat bits */ |
1396 | if (enabled_nat_bits(sbi, cpc)) { | |
1397 | __u64 cp_ver = cur_cp_version(ckpt); | |
22ad0b6a JK |
1398 | block_t blk; |
1399 | ||
1400 | cp_ver |= ((__u64)crc32 << 32); | |
1401 | *(__le64 *)nm_i->nat_bits = cpu_to_le64(cp_ver); | |
1402 | ||
1403 | blk = start_blk + sbi->blocks_per_seg - nm_i->nat_bits_blocks; | |
1404 | for (i = 0; i < nm_i->nat_bits_blocks; i++) | |
4d57b86d | 1405 | f2fs_update_meta_page(sbi, nm_i->nat_bits + |
22ad0b6a | 1406 | (i << F2FS_BLKSIZE_BITS), blk + i); |
22ad0b6a JK |
1407 | } |
1408 | ||
127e670a | 1409 | /* write out checkpoint buffer at block 0 */ |
4d57b86d | 1410 | f2fs_update_meta_page(sbi, ckpt, start_blk++); |
381722d2 CY |
1411 | |
1412 | for (i = 1; i < 1 + cp_payload_blks; i++) | |
4d57b86d | 1413 | f2fs_update_meta_page(sbi, (char *)ckpt + i * F2FS_BLKSIZE, |
381722d2 | 1414 | start_blk++); |
1dbe4152 | 1415 | |
67298804 | 1416 | if (orphan_num) { |
127e670a JK |
1417 | write_orphan_inodes(sbi, start_blk); |
1418 | start_blk += orphan_blocks; | |
1419 | } | |
1420 | ||
4d57b86d | 1421 | f2fs_write_data_summaries(sbi, start_blk); |
127e670a | 1422 | start_blk += data_sum_blocks; |
8f1dbbbb SL |
1423 | |
1424 | /* Record write statistics in the hot node summary */ | |
1425 | kbytes_written = sbi->kbytes_written; | |
1426 | if (sb->s_bdev->bd_part) | |
1427 | kbytes_written += BD_PART_WRITTEN(sbi); | |
1428 | ||
b7ad7512 | 1429 | seg_i->journal->info.kbytes_written = cpu_to_le64(kbytes_written); |
8f1dbbbb | 1430 | |
119ee914 | 1431 | if (__remain_node_summaries(cpc->reason)) { |
4d57b86d | 1432 | f2fs_write_node_summaries(sbi, start_blk); |
127e670a JK |
1433 | start_blk += NR_CURSEG_NODE_TYPE; |
1434 | } | |
1435 | ||
46706d59 GX |
1436 | /* update user_block_counts */ |
1437 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
1438 | percpu_counter_set(&sbi->alloc_valid_block_count, 0); | |
127e670a | 1439 | |
46706d59 | 1440 | /* Here, we have one bio having CP pack except cp pack 2 page */ |
4d57b86d | 1441 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
8ec18bff CY |
1442 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_META) && |
1443 | !f2fs_cp_error(sbi)); | |
46706d59 GX |
1444 | |
1445 | /* wait for previous submitted meta pages writeback */ | |
50fa53ec | 1446 | f2fs_wait_on_all_pages_writeback(sbi); |
127e670a | 1447 | |
46706d59 GX |
1448 | /* flush all device cache */ |
1449 | err = f2fs_flush_device_cache(sbi); | |
1450 | if (err) | |
1451 | return err; | |
127e670a | 1452 | |
46706d59 GX |
1453 | /* barrier and flush checkpoint cp pack 2 page if it can */ |
1454 | commit_checkpoint(sbi, ckpt, start_blk); | |
50fa53ec | 1455 | f2fs_wait_on_all_pages_writeback(sbi); |
6a8f8ca5 | 1456 | |
18767e62 CY |
1457 | /* |
1458 | * invalidate intermediate page cache borrowed from meta inode | |
1459 | * which are used for migration of encrypted inode's blocks. | |
1460 | */ | |
7beb01f7 | 1461 | if (f2fs_sb_has_encrypt(sbi)) |
18767e62 CY |
1462 | invalidate_mapping_pages(META_MAPPING(sbi), |
1463 | MAIN_BLKADDR(sbi), MAX_BLKADDR(sbi) - 1); | |
1464 | ||
4d57b86d | 1465 | f2fs_release_ino_entry(sbi, false); |
cf779cab | 1466 | |
50fa53ec CY |
1467 | f2fs_reset_fsync_node_info(sbi); |
1468 | ||
caf0047e | 1469 | clear_sbi_flag(sbi, SBI_IS_DIRTY); |
bbf156f7 | 1470 | clear_sbi_flag(sbi, SBI_NEED_CP); |
af033b2a | 1471 | clear_sbi_flag(sbi, SBI_QUOTA_SKIP_FLUSH); |
4354994f | 1472 | sbi->unusable_block_count = 0; |
8508e44a | 1473 | __set_cp_next_pack(sbi); |
c34f42e2 | 1474 | |
c2a080ae CY |
1475 | /* |
1476 | * redirty superblock if metadata like node page or inode cache is | |
1477 | * updated during writing checkpoint. | |
1478 | */ | |
1479 | if (get_pages(sbi, F2FS_DIRTY_NODES) || | |
1480 | get_pages(sbi, F2FS_DIRTY_IMETA)) | |
1481 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1482 | ||
1483 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_DENTS)); | |
1484 | ||
af697c0f | 1485 | return unlikely(f2fs_cp_error(sbi)) ? -EIO : 0; |
127e670a JK |
1486 | } |
1487 | ||
0a8165d7 | 1488 | /* |
e1c42045 | 1489 | * We guarantee that this checkpoint procedure will not fail. |
127e670a | 1490 | */ |
4d57b86d | 1491 | int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1492 | { |
1493 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1494 | unsigned long long ckpt_ver; | |
c34f42e2 | 1495 | int err = 0; |
127e670a | 1496 | |
4354994f DR |
1497 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { |
1498 | if (cpc->reason != CP_PAUSE) | |
1499 | return 0; | |
1500 | f2fs_msg(sbi->sb, KERN_WARNING, | |
1501 | "Start checkpoint disabled!"); | |
1502 | } | |
43727527 | 1503 | mutex_lock(&sbi->cp_mutex); |
8501017e | 1504 | |
caf0047e | 1505 | if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) && |
c473f1a9 CY |
1506 | ((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) || |
1507 | ((cpc->reason & CP_DISCARD) && !sbi->discard_blks))) | |
8501017e | 1508 | goto out; |
c34f42e2 CY |
1509 | if (unlikely(f2fs_cp_error(sbi))) { |
1510 | err = -EIO; | |
cf779cab | 1511 | goto out; |
c34f42e2 CY |
1512 | } |
1513 | if (f2fs_readonly(sbi->sb)) { | |
1514 | err = -EROFS; | |
11504a8e | 1515 | goto out; |
c34f42e2 | 1516 | } |
2bda542d WL |
1517 | |
1518 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); | |
1519 | ||
c34f42e2 CY |
1520 | err = block_operations(sbi); |
1521 | if (err) | |
cf779cab | 1522 | goto out; |
127e670a | 1523 | |
75ab4cb8 | 1524 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish block_ops"); |
2af4bd6c | 1525 | |
b9109b0e | 1526 | f2fs_flush_merged_writes(sbi); |
127e670a | 1527 | |
58cce381 | 1528 | /* this is the case of multiple fstrims without any changes */ |
c473f1a9 | 1529 | if (cpc->reason & CP_DISCARD) { |
4d57b86d | 1530 | if (!f2fs_exist_trim_candidates(sbi, cpc)) { |
25290fa5 JK |
1531 | unblock_operations(sbi); |
1532 | goto out; | |
1533 | } | |
1534 | ||
0333ad4e JK |
1535 | if (NM_I(sbi)->dirty_nat_cnt == 0 && |
1536 | SIT_I(sbi)->dirty_sentries == 0 && | |
1537 | prefree_segments(sbi) == 0) { | |
4d57b86d CY |
1538 | f2fs_flush_sit_entries(sbi, cpc); |
1539 | f2fs_clear_prefree_segments(sbi, cpc); | |
0333ad4e JK |
1540 | unblock_operations(sbi); |
1541 | goto out; | |
1542 | } | |
58cce381 YH |
1543 | } |
1544 | ||
127e670a JK |
1545 | /* |
1546 | * update checkpoint pack index | |
1547 | * Increase the version number so that | |
1548 | * SIT entries and seg summaries are written at correct place | |
1549 | */ | |
d71b5564 | 1550 | ckpt_ver = cur_cp_version(ckpt); |
127e670a JK |
1551 | ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver); |
1552 | ||
1553 | /* write cached NAT/SIT entries to NAT/SIT area */ | |
edc55aaf JK |
1554 | err = f2fs_flush_nat_entries(sbi, cpc); |
1555 | if (err) | |
1556 | goto stop; | |
1557 | ||
4d57b86d | 1558 | f2fs_flush_sit_entries(sbi, cpc); |
127e670a | 1559 | |
127e670a | 1560 | /* unlock all the fs_lock[] in do_checkpoint() */ |
c34f42e2 | 1561 | err = do_checkpoint(sbi, cpc); |
4e6a8d9b | 1562 | if (err) |
4d57b86d | 1563 | f2fs_release_discard_addrs(sbi); |
4e6a8d9b | 1564 | else |
4d57b86d | 1565 | f2fs_clear_prefree_segments(sbi, cpc); |
edc55aaf | 1566 | stop: |
127e670a | 1567 | unblock_operations(sbi); |
942e0be6 | 1568 | stat_inc_cp_count(sbi->stat_info); |
10027551 | 1569 | |
c473f1a9 | 1570 | if (cpc->reason & CP_RECOVERY) |
10027551 JK |
1571 | f2fs_msg(sbi->sb, KERN_NOTICE, |
1572 | "checkpoint: version = %llx", ckpt_ver); | |
60b99b48 JK |
1573 | |
1574 | /* do checkpoint periodically */ | |
6beceb54 | 1575 | f2fs_update_time(sbi, CP_TIME); |
55d1cdb2 | 1576 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint"); |
8501017e JK |
1577 | out: |
1578 | mutex_unlock(&sbi->cp_mutex); | |
c34f42e2 | 1579 | return err; |
127e670a JK |
1580 | } |
1581 | ||
4d57b86d | 1582 | void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi) |
127e670a | 1583 | { |
6451e041 JK |
1584 | int i; |
1585 | ||
1586 | for (i = 0; i < MAX_INO_ENTRY; i++) { | |
67298804 CY |
1587 | struct inode_management *im = &sbi->im[i]; |
1588 | ||
1589 | INIT_RADIX_TREE(&im->ino_root, GFP_ATOMIC); | |
1590 | spin_lock_init(&im->ino_lock); | |
1591 | INIT_LIST_HEAD(&im->ino_list); | |
1592 | im->ino_num = 0; | |
6451e041 JK |
1593 | } |
1594 | ||
b5b82205 | 1595 | sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS - |
14b42817 WL |
1596 | NR_CURSEG_TYPE - __cp_payload(sbi)) * |
1597 | F2FS_ORPHANS_PER_BLOCK; | |
127e670a JK |
1598 | } |
1599 | ||
4d57b86d | 1600 | int __init f2fs_create_checkpoint_caches(void) |
127e670a | 1601 | { |
6451e041 JK |
1602 | ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry", |
1603 | sizeof(struct ino_entry)); | |
1604 | if (!ino_entry_slab) | |
127e670a | 1605 | return -ENOMEM; |
4d57b86d | 1606 | f2fs_inode_entry_slab = f2fs_kmem_cache_create("f2fs_inode_entry", |
06292073 | 1607 | sizeof(struct inode_entry)); |
4d57b86d | 1608 | if (!f2fs_inode_entry_slab) { |
6451e041 | 1609 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1610 | return -ENOMEM; |
1611 | } | |
1612 | return 0; | |
1613 | } | |
1614 | ||
4d57b86d | 1615 | void f2fs_destroy_checkpoint_caches(void) |
127e670a | 1616 | { |
6451e041 | 1617 | kmem_cache_destroy(ino_entry_slab); |
4d57b86d | 1618 | kmem_cache_destroy(f2fs_inode_entry_slab); |
127e670a | 1619 | } |