Commit | Line | Data |
---|---|---|
0a8165d7 | 1 | /* |
127e670a JK |
2 | * fs/f2fs/checkpoint.c |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #include <linux/fs.h> | |
12 | #include <linux/bio.h> | |
13 | #include <linux/mpage.h> | |
14 | #include <linux/writeback.h> | |
15 | #include <linux/blkdev.h> | |
16 | #include <linux/f2fs_fs.h> | |
17 | #include <linux/pagevec.h> | |
18 | #include <linux/swap.h> | |
19 | ||
20 | #include "f2fs.h" | |
21 | #include "node.h" | |
22 | #include "segment.h" | |
9e4ded3f | 23 | #include "trace.h" |
2af4bd6c | 24 | #include <trace/events/f2fs.h> |
127e670a | 25 | |
6451e041 | 26 | static struct kmem_cache *ino_entry_slab; |
06292073 | 27 | struct kmem_cache *inode_entry_slab; |
127e670a | 28 | |
38f91ca8 JK |
29 | void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io) |
30 | { | |
aaec2b1d | 31 | set_ckpt_flags(sbi, CP_ERROR_FLAG); |
38f91ca8 | 32 | if (!end_io) |
b9109b0e | 33 | f2fs_flush_merged_writes(sbi); |
38f91ca8 JK |
34 | } |
35 | ||
0a8165d7 | 36 | /* |
127e670a JK |
37 | * We guarantee no failure on the returned page. |
38 | */ | |
39 | struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) | |
40 | { | |
9df27d98 | 41 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a JK |
42 | struct page *page = NULL; |
43 | repeat: | |
300e129c | 44 | page = f2fs_grab_cache_page(mapping, index, false); |
127e670a JK |
45 | if (!page) { |
46 | cond_resched(); | |
47 | goto repeat; | |
48 | } | |
fec1d657 | 49 | f2fs_wait_on_page_writeback(page, META, true); |
237c0790 JK |
50 | if (!PageUptodate(page)) |
51 | SetPageUptodate(page); | |
127e670a JK |
52 | return page; |
53 | } | |
54 | ||
0a8165d7 | 55 | /* |
127e670a JK |
56 | * We guarantee no failure on the returned page. |
57 | */ | |
2b947003 CY |
58 | static struct page *__get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index, |
59 | bool is_meta) | |
127e670a | 60 | { |
9df27d98 | 61 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a | 62 | struct page *page; |
cf04e8eb | 63 | struct f2fs_io_info fio = { |
05ca3632 | 64 | .sbi = sbi, |
cf04e8eb | 65 | .type = META, |
04d328de | 66 | .op = REQ_OP_READ, |
70fd7614 | 67 | .op_flags = REQ_META | REQ_PRIO, |
7a9d7548 CY |
68 | .old_blkaddr = index, |
69 | .new_blkaddr = index, | |
4375a336 | 70 | .encrypted_page = NULL, |
cf04e8eb | 71 | }; |
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 | ||
86531d6b JK |
86 | if (f2fs_submit_page_bio(&fio)) { |
87 | f2fs_put_page(page, 1); | |
127e670a | 88 | goto repeat; |
86531d6b | 89 | } |
127e670a | 90 | |
393ff91f | 91 | lock_page(page); |
6bacf52f | 92 | if (unlikely(page->mapping != mapping)) { |
afcb7ca0 JK |
93 | f2fs_put_page(page, 1); |
94 | goto repeat; | |
95 | } | |
f3f338ca CY |
96 | |
97 | /* | |
98 | * if there is any IO error when accessing device, make our filesystem | |
99 | * readonly and make sure do not write checkpoint with non-uptodate | |
100 | * meta page. | |
101 | */ | |
102 | if (unlikely(!PageUptodate(page))) | |
38f91ca8 | 103 | f2fs_stop_checkpoint(sbi, false); |
393ff91f | 104 | out: |
127e670a JK |
105 | return page; |
106 | } | |
107 | ||
2b947003 CY |
108 | struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
109 | { | |
110 | return __get_meta_page(sbi, index, true); | |
111 | } | |
112 | ||
113 | /* for POR only */ | |
114 | struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index) | |
115 | { | |
116 | return __get_meta_page(sbi, index, false); | |
117 | } | |
118 | ||
f0c9cada | 119 | bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type) |
662befda CY |
120 | { |
121 | switch (type) { | |
122 | case META_NAT: | |
66b00c18 | 123 | break; |
662befda | 124 | case META_SIT: |
66b00c18 CY |
125 | if (unlikely(blkaddr >= SIT_BLK_CNT(sbi))) |
126 | return false; | |
127 | break; | |
81c1a0f1 | 128 | case META_SSA: |
66b00c18 CY |
129 | if (unlikely(blkaddr >= MAIN_BLKADDR(sbi) || |
130 | blkaddr < SM_I(sbi)->ssa_blkaddr)) | |
131 | return false; | |
132 | break; | |
662befda | 133 | case META_CP: |
66b00c18 CY |
134 | if (unlikely(blkaddr >= SIT_I(sbi)->sit_base_addr || |
135 | blkaddr < __start_cp_addr(sbi))) | |
136 | return false; | |
137 | break; | |
4c521f49 | 138 | case META_POR: |
66b00c18 CY |
139 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
140 | blkaddr < MAIN_BLKADDR(sbi))) | |
141 | return false; | |
142 | break; | |
662befda CY |
143 | default: |
144 | BUG(); | |
145 | } | |
66b00c18 CY |
146 | |
147 | return true; | |
662befda CY |
148 | } |
149 | ||
150 | /* | |
81c1a0f1 | 151 | * Readahead CP/NAT/SIT/SSA pages |
662befda | 152 | */ |
26879fb1 CY |
153 | int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, |
154 | int type, bool sync) | |
662befda | 155 | { |
662befda | 156 | struct page *page; |
4c521f49 | 157 | block_t blkno = start; |
662befda | 158 | struct f2fs_io_info fio = { |
05ca3632 | 159 | .sbi = sbi, |
662befda | 160 | .type = META, |
04d328de | 161 | .op = REQ_OP_READ, |
70fd7614 | 162 | .op_flags = sync ? (REQ_META | REQ_PRIO) : REQ_RAHEAD, |
4375a336 | 163 | .encrypted_page = NULL, |
fb830fc5 | 164 | .in_list = false, |
662befda | 165 | }; |
e9f5b8b8 | 166 | struct blk_plug plug; |
662befda | 167 | |
2b947003 | 168 | if (unlikely(type == META_POR)) |
04d328de | 169 | fio.op_flags &= ~REQ_META; |
2b947003 | 170 | |
e9f5b8b8 | 171 | blk_start_plug(&plug); |
662befda | 172 | for (; nrpages-- > 0; blkno++) { |
662befda | 173 | |
66b00c18 CY |
174 | if (!is_valid_blkaddr(sbi, blkno, type)) |
175 | goto out; | |
176 | ||
662befda CY |
177 | switch (type) { |
178 | case META_NAT: | |
66b00c18 CY |
179 | if (unlikely(blkno >= |
180 | NAT_BLOCK_OFFSET(NM_I(sbi)->max_nid))) | |
662befda | 181 | blkno = 0; |
66b00c18 | 182 | /* get nat block addr */ |
7a9d7548 | 183 | fio.new_blkaddr = current_nat_addr(sbi, |
662befda CY |
184 | blkno * NAT_ENTRY_PER_BLOCK); |
185 | break; | |
186 | case META_SIT: | |
187 | /* get sit block addr */ | |
7a9d7548 | 188 | fio.new_blkaddr = current_sit_addr(sbi, |
662befda | 189 | blkno * SIT_ENTRY_PER_BLOCK); |
662befda | 190 | break; |
81c1a0f1 | 191 | case META_SSA: |
662befda | 192 | case META_CP: |
4c521f49 | 193 | case META_POR: |
7a9d7548 | 194 | fio.new_blkaddr = blkno; |
662befda CY |
195 | break; |
196 | default: | |
197 | BUG(); | |
198 | } | |
199 | ||
300e129c JK |
200 | page = f2fs_grab_cache_page(META_MAPPING(sbi), |
201 | fio.new_blkaddr, false); | |
662befda CY |
202 | if (!page) |
203 | continue; | |
204 | if (PageUptodate(page)) { | |
662befda CY |
205 | f2fs_put_page(page, 1); |
206 | continue; | |
207 | } | |
208 | ||
05ca3632 | 209 | fio.page = page; |
1919ffc0 | 210 | f2fs_submit_page_bio(&fio); |
662befda CY |
211 | f2fs_put_page(page, 0); |
212 | } | |
213 | out: | |
e9f5b8b8 | 214 | blk_finish_plug(&plug); |
662befda CY |
215 | return blkno - start; |
216 | } | |
217 | ||
635aee1f CY |
218 | void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index) |
219 | { | |
220 | struct page *page; | |
221 | bool readahead = false; | |
222 | ||
223 | page = find_get_page(META_MAPPING(sbi), index); | |
4da7bf5a | 224 | if (!page || !PageUptodate(page)) |
635aee1f CY |
225 | readahead = true; |
226 | f2fs_put_page(page, 0); | |
227 | ||
228 | if (readahead) | |
664ba972 | 229 | ra_meta_pages(sbi, index, BIO_MAX_PAGES, META_POR, true); |
635aee1f CY |
230 | } |
231 | ||
b0af6d49 CY |
232 | static int __f2fs_write_meta_page(struct page *page, |
233 | struct writeback_control *wbc, | |
234 | enum iostat_type io_type) | |
127e670a | 235 | { |
4081363f | 236 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
127e670a | 237 | |
ecda0de3 CY |
238 | trace_f2fs_writepage(page, META); |
239 | ||
db198ae0 CY |
240 | if (unlikely(f2fs_cp_error(sbi))) { |
241 | dec_page_count(sbi, F2FS_DIRTY_META); | |
242 | unlock_page(page); | |
243 | return 0; | |
244 | } | |
caf0047e | 245 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
cfb271d4 | 246 | goto redirty_out; |
857dc4e0 | 247 | if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0)) |
cfb271d4 | 248 | goto redirty_out; |
127e670a | 249 | |
b0af6d49 | 250 | write_meta_page(sbi, page, io_type); |
577e3495 | 251 | dec_page_count(sbi, F2FS_DIRTY_META); |
0c3a5797 CY |
252 | |
253 | if (wbc->for_reclaim) | |
b9109b0e JK |
254 | f2fs_submit_merged_write_cond(sbi, page->mapping->host, |
255 | 0, page->index, META); | |
0c3a5797 | 256 | |
577e3495 | 257 | unlock_page(page); |
857dc4e0 | 258 | |
0c3a5797 | 259 | if (unlikely(f2fs_cp_error(sbi))) |
b9109b0e | 260 | f2fs_submit_merged_write(sbi, META); |
0c3a5797 | 261 | |
577e3495 | 262 | return 0; |
cfb271d4 CY |
263 | |
264 | redirty_out: | |
76f60268 | 265 | redirty_page_for_writepage(wbc, page); |
cfb271d4 | 266 | return AOP_WRITEPAGE_ACTIVATE; |
127e670a JK |
267 | } |
268 | ||
b0af6d49 CY |
269 | static int f2fs_write_meta_page(struct page *page, |
270 | struct writeback_control *wbc) | |
271 | { | |
272 | return __f2fs_write_meta_page(page, wbc, FS_META_IO); | |
273 | } | |
274 | ||
127e670a JK |
275 | static int f2fs_write_meta_pages(struct address_space *mapping, |
276 | struct writeback_control *wbc) | |
277 | { | |
4081363f | 278 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
50c8cdb3 | 279 | long diff, written; |
127e670a | 280 | |
0771fcc7 CY |
281 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
282 | goto skip_write; | |
283 | ||
5459aa97 | 284 | /* collect a number of dirty meta pages and write together */ |
50c8cdb3 JK |
285 | if (wbc->for_kupdate || |
286 | get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META)) | |
d3baf95d | 287 | goto skip_write; |
127e670a | 288 | |
a29d0e0b YH |
289 | /* if locked failed, cp will flush dirty pages instead */ |
290 | if (!mutex_trylock(&sbi->cp_mutex)) | |
291 | goto skip_write; | |
d31c7c3f | 292 | |
a29d0e0b | 293 | trace_f2fs_writepages(mapping->host, wbc, META); |
50c8cdb3 | 294 | diff = nr_pages_to_write(sbi, META, wbc); |
b0af6d49 | 295 | written = sync_meta_pages(sbi, META, wbc->nr_to_write, FS_META_IO); |
127e670a | 296 | mutex_unlock(&sbi->cp_mutex); |
50c8cdb3 | 297 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff); |
127e670a | 298 | return 0; |
d3baf95d JK |
299 | |
300 | skip_write: | |
301 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META); | |
d31c7c3f | 302 | trace_f2fs_writepages(mapping->host, wbc, META); |
d3baf95d | 303 | return 0; |
127e670a JK |
304 | } |
305 | ||
306 | long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, | |
b0af6d49 | 307 | long nr_to_write, enum iostat_type io_type) |
127e670a | 308 | { |
9df27d98 | 309 | struct address_space *mapping = META_MAPPING(sbi); |
028a63a6 | 310 | pgoff_t index = 0, prev = ULONG_MAX; |
127e670a JK |
311 | struct pagevec pvec; |
312 | long nwritten = 0; | |
028a63a6 | 313 | int nr_pages; |
127e670a JK |
314 | struct writeback_control wbc = { |
315 | .for_reclaim = 0, | |
316 | }; | |
e9f5b8b8 | 317 | struct blk_plug plug; |
127e670a | 318 | |
86679820 | 319 | pagevec_init(&pvec); |
127e670a | 320 | |
e9f5b8b8 CY |
321 | blk_start_plug(&plug); |
322 | ||
028a63a6 | 323 | while ((nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, |
67fd707f | 324 | PAGECACHE_TAG_DIRTY))) { |
028a63a6 | 325 | int i; |
127e670a JK |
326 | |
327 | for (i = 0; i < nr_pages; i++) { | |
328 | struct page *page = pvec.pages[i]; | |
203681f6 | 329 | |
80dd9c0e | 330 | if (prev == ULONG_MAX) |
6066d8cd JK |
331 | prev = page->index - 1; |
332 | if (nr_to_write != LONG_MAX && page->index != prev + 1) { | |
333 | pagevec_release(&pvec); | |
334 | goto stop; | |
335 | } | |
336 | ||
127e670a | 337 | lock_page(page); |
203681f6 JK |
338 | |
339 | if (unlikely(page->mapping != mapping)) { | |
340 | continue_unlock: | |
341 | unlock_page(page); | |
342 | continue; | |
343 | } | |
344 | if (!PageDirty(page)) { | |
345 | /* someone wrote it for us */ | |
346 | goto continue_unlock; | |
347 | } | |
348 | ||
fa3d2bdf JK |
349 | f2fs_wait_on_page_writeback(page, META, true); |
350 | ||
351 | BUG_ON(PageWriteback(page)); | |
203681f6 JK |
352 | if (!clear_page_dirty_for_io(page)) |
353 | goto continue_unlock; | |
354 | ||
b0af6d49 | 355 | if (__f2fs_write_meta_page(page, &wbc, io_type)) { |
577e3495 JK |
356 | unlock_page(page); |
357 | break; | |
358 | } | |
cfb271d4 | 359 | nwritten++; |
6066d8cd | 360 | prev = page->index; |
cfb271d4 | 361 | if (unlikely(nwritten >= nr_to_write)) |
127e670a JK |
362 | break; |
363 | } | |
364 | pagevec_release(&pvec); | |
365 | cond_resched(); | |
366 | } | |
6066d8cd | 367 | stop: |
127e670a | 368 | if (nwritten) |
b9109b0e | 369 | f2fs_submit_merged_write(sbi, type); |
127e670a | 370 | |
e9f5b8b8 CY |
371 | blk_finish_plug(&plug); |
372 | ||
127e670a JK |
373 | return nwritten; |
374 | } | |
375 | ||
376 | static int f2fs_set_meta_page_dirty(struct page *page) | |
377 | { | |
26c6b887 JK |
378 | trace_f2fs_set_page_dirty(page, META); |
379 | ||
237c0790 JK |
380 | if (!PageUptodate(page)) |
381 | SetPageUptodate(page); | |
127e670a | 382 | if (!PageDirty(page)) { |
fe76b796 | 383 | f2fs_set_page_dirty_nobuffers(page); |
4081363f | 384 | inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_META); |
1601839e | 385 | SetPagePrivate(page); |
9e4ded3f | 386 | f2fs_trace_pid(page); |
127e670a JK |
387 | return 1; |
388 | } | |
389 | return 0; | |
390 | } | |
391 | ||
392 | const struct address_space_operations f2fs_meta_aops = { | |
393 | .writepage = f2fs_write_meta_page, | |
394 | .writepages = f2fs_write_meta_pages, | |
395 | .set_page_dirty = f2fs_set_meta_page_dirty, | |
487261f3 CY |
396 | .invalidatepage = f2fs_invalidate_page, |
397 | .releasepage = f2fs_release_page, | |
5b7a487c WG |
398 | #ifdef CONFIG_MIGRATION |
399 | .migratepage = f2fs_migrate_page, | |
400 | #endif | |
127e670a JK |
401 | }; |
402 | ||
39d787be CY |
403 | static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, |
404 | unsigned int devidx, int type) | |
953e6cc6 | 405 | { |
67298804 | 406 | struct inode_management *im = &sbi->im[type]; |
80c54505 JK |
407 | struct ino_entry *e, *tmp; |
408 | ||
409 | tmp = f2fs_kmem_cache_alloc(ino_entry_slab, GFP_NOFS); | |
19526d74 | 410 | |
80c54505 | 411 | radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); |
769ec6e5 | 412 | |
67298804 | 413 | spin_lock(&im->ino_lock); |
67298804 | 414 | e = radix_tree_lookup(&im->ino_root, ino); |
39efac41 | 415 | if (!e) { |
80c54505 | 416 | e = tmp; |
19526d74 CY |
417 | if (unlikely(radix_tree_insert(&im->ino_root, ino, e))) |
418 | f2fs_bug_on(sbi, 1); | |
419 | ||
39efac41 JK |
420 | memset(e, 0, sizeof(struct ino_entry)); |
421 | e->ino = ino; | |
953e6cc6 | 422 | |
67298804 | 423 | list_add_tail(&e->list, &im->ino_list); |
8c402946 | 424 | if (type != ORPHAN_INO) |
67298804 | 425 | im->ino_num++; |
39efac41 | 426 | } |
39d787be CY |
427 | |
428 | if (type == FLUSH_INO) | |
429 | f2fs_set_bit(devidx, (char *)&e->dirty_device); | |
430 | ||
67298804 | 431 | spin_unlock(&im->ino_lock); |
769ec6e5 | 432 | radix_tree_preload_end(); |
80c54505 JK |
433 | |
434 | if (e != tmp) | |
435 | kmem_cache_free(ino_entry_slab, tmp); | |
953e6cc6 JK |
436 | } |
437 | ||
6451e041 | 438 | static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
953e6cc6 | 439 | { |
67298804 | 440 | struct inode_management *im = &sbi->im[type]; |
6451e041 | 441 | struct ino_entry *e; |
953e6cc6 | 442 | |
67298804 CY |
443 | spin_lock(&im->ino_lock); |
444 | e = radix_tree_lookup(&im->ino_root, ino); | |
39efac41 JK |
445 | if (e) { |
446 | list_del(&e->list); | |
67298804 CY |
447 | radix_tree_delete(&im->ino_root, ino); |
448 | im->ino_num--; | |
449 | spin_unlock(&im->ino_lock); | |
39efac41 JK |
450 | kmem_cache_free(ino_entry_slab, e); |
451 | return; | |
953e6cc6 | 452 | } |
67298804 | 453 | spin_unlock(&im->ino_lock); |
953e6cc6 JK |
454 | } |
455 | ||
a49324f1 | 456 | void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
457 | { |
458 | /* add new dirty ino entry into list */ | |
39d787be | 459 | __add_ino_entry(sbi, ino, 0, type); |
fff04f90 JK |
460 | } |
461 | ||
a49324f1 | 462 | void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
463 | { |
464 | /* remove dirty ino entry from list */ | |
465 | __remove_ino_entry(sbi, ino, type); | |
466 | } | |
467 | ||
468 | /* mode should be APPEND_INO or UPDATE_INO */ | |
469 | bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode) | |
470 | { | |
67298804 | 471 | struct inode_management *im = &sbi->im[mode]; |
fff04f90 | 472 | struct ino_entry *e; |
67298804 CY |
473 | |
474 | spin_lock(&im->ino_lock); | |
475 | e = radix_tree_lookup(&im->ino_root, ino); | |
476 | spin_unlock(&im->ino_lock); | |
fff04f90 JK |
477 | return e ? true : false; |
478 | } | |
479 | ||
74ef9241 | 480 | void release_ino_entry(struct f2fs_sb_info *sbi, bool all) |
fff04f90 JK |
481 | { |
482 | struct ino_entry *e, *tmp; | |
483 | int i; | |
484 | ||
39d787be | 485 | for (i = all ? ORPHAN_INO : APPEND_INO; i < MAX_INO_ENTRY; i++) { |
67298804 CY |
486 | struct inode_management *im = &sbi->im[i]; |
487 | ||
488 | spin_lock(&im->ino_lock); | |
489 | list_for_each_entry_safe(e, tmp, &im->ino_list, list) { | |
fff04f90 | 490 | list_del(&e->list); |
67298804 | 491 | radix_tree_delete(&im->ino_root, e->ino); |
fff04f90 | 492 | kmem_cache_free(ino_entry_slab, e); |
67298804 | 493 | im->ino_num--; |
fff04f90 | 494 | } |
67298804 | 495 | spin_unlock(&im->ino_lock); |
fff04f90 JK |
496 | } |
497 | } | |
498 | ||
39d787be CY |
499 | void set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
500 | unsigned int devidx, int type) | |
501 | { | |
502 | __add_ino_entry(sbi, ino, devidx, type); | |
503 | } | |
504 | ||
505 | bool is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, | |
506 | unsigned int devidx, int type) | |
507 | { | |
508 | struct inode_management *im = &sbi->im[type]; | |
509 | struct ino_entry *e; | |
510 | bool is_dirty = false; | |
511 | ||
512 | spin_lock(&im->ino_lock); | |
513 | e = radix_tree_lookup(&im->ino_root, ino); | |
514 | if (e && f2fs_test_bit(devidx, (char *)&e->dirty_device)) | |
515 | is_dirty = true; | |
516 | spin_unlock(&im->ino_lock); | |
517 | return is_dirty; | |
518 | } | |
519 | ||
cbd56e7d | 520 | int acquire_orphan_inode(struct f2fs_sb_info *sbi) |
127e670a | 521 | { |
67298804 | 522 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a JK |
523 | int err = 0; |
524 | ||
67298804 | 525 | spin_lock(&im->ino_lock); |
cb78942b JK |
526 | |
527 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1ecc0c5c | 528 | if (time_to_inject(sbi, FAULT_ORPHAN)) { |
cb78942b | 529 | spin_unlock(&im->ino_lock); |
55523519 | 530 | f2fs_show_injection_info(FAULT_ORPHAN); |
cb78942b JK |
531 | return -ENOSPC; |
532 | } | |
533 | #endif | |
67298804 | 534 | if (unlikely(im->ino_num >= sbi->max_orphans)) |
127e670a | 535 | err = -ENOSPC; |
cbd56e7d | 536 | else |
67298804 CY |
537 | im->ino_num++; |
538 | spin_unlock(&im->ino_lock); | |
0d47c1ad | 539 | |
127e670a JK |
540 | return err; |
541 | } | |
542 | ||
cbd56e7d JK |
543 | void release_orphan_inode(struct f2fs_sb_info *sbi) |
544 | { | |
67298804 CY |
545 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
546 | ||
547 | spin_lock(&im->ino_lock); | |
548 | f2fs_bug_on(sbi, im->ino_num == 0); | |
549 | im->ino_num--; | |
550 | spin_unlock(&im->ino_lock); | |
cbd56e7d JK |
551 | } |
552 | ||
67c3758d | 553 | void add_orphan_inode(struct inode *inode) |
127e670a | 554 | { |
39efac41 | 555 | /* add new orphan ino entry into list */ |
39d787be | 556 | __add_ino_entry(F2FS_I_SB(inode), inode->i_ino, 0, ORPHAN_INO); |
67c3758d | 557 | update_inode_page(inode); |
127e670a JK |
558 | } |
559 | ||
560 | void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) | |
561 | { | |
953e6cc6 | 562 | /* remove orphan entry from orphan list */ |
6451e041 | 563 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
127e670a JK |
564 | } |
565 | ||
8c14bfad | 566 | static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 567 | { |
8c14bfad | 568 | struct inode *inode; |
5905f9af | 569 | struct node_info ni; |
d41065e2 JK |
570 | int err = acquire_orphan_inode(sbi); |
571 | ||
572 | if (err) { | |
573 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
574 | f2fs_msg(sbi->sb, KERN_WARNING, | |
575 | "%s: orphan failed (ino=%x), run fsck to fix.", | |
576 | __func__, ino); | |
577 | return err; | |
578 | } | |
579 | ||
39d787be | 580 | __add_ino_entry(sbi, ino, 0, ORPHAN_INO); |
8c14bfad | 581 | |
5905f9af | 582 | inode = f2fs_iget_retry(sbi->sb, ino); |
8c14bfad CY |
583 | if (IS_ERR(inode)) { |
584 | /* | |
585 | * there should be a bug that we can't find the entry | |
586 | * to orphan inode. | |
587 | */ | |
588 | f2fs_bug_on(sbi, PTR_ERR(inode) == -ENOENT); | |
589 | return PTR_ERR(inode); | |
590 | } | |
591 | ||
127e670a JK |
592 | clear_nlink(inode); |
593 | ||
594 | /* truncate all the data during iput */ | |
595 | iput(inode); | |
5905f9af JK |
596 | |
597 | get_node_info(sbi, ino, &ni); | |
598 | ||
599 | /* ENOMEM was fully retried in f2fs_evict_inode. */ | |
600 | if (ni.blk_addr != NULL_ADDR) { | |
d41065e2 JK |
601 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
602 | f2fs_msg(sbi->sb, KERN_WARNING, | |
5ce4738a | 603 | "%s: orphan failed (ino=%x) by kernel, retry mount.", |
d41065e2 JK |
604 | __func__, ino); |
605 | return -EIO; | |
5905f9af | 606 | } |
d41065e2 | 607 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
8c14bfad | 608 | return 0; |
127e670a JK |
609 | } |
610 | ||
8c14bfad | 611 | int recover_orphan_inodes(struct f2fs_sb_info *sbi) |
127e670a | 612 | { |
3c642985 | 613 | block_t start_blk, orphan_blocks, i, j; |
4b2414d0 CY |
614 | unsigned int s_flags = sbi->sb->s_flags; |
615 | int err = 0; | |
ea676733 JK |
616 | #ifdef CONFIG_QUOTA |
617 | int quota_enabled; | |
618 | #endif | |
127e670a | 619 | |
aaec2b1d | 620 | if (!is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG)) |
8c14bfad | 621 | return 0; |
127e670a | 622 | |
1751e8a6 | 623 | if (s_flags & SB_RDONLY) { |
4b2414d0 | 624 | f2fs_msg(sbi->sb, KERN_INFO, "orphan cleanup on readonly fs"); |
1751e8a6 | 625 | sbi->sb->s_flags &= ~SB_RDONLY; |
4b2414d0 CY |
626 | } |
627 | ||
628 | #ifdef CONFIG_QUOTA | |
629 | /* Needed for iput() to work correctly and not trash data */ | |
1751e8a6 | 630 | sbi->sb->s_flags |= SB_ACTIVE; |
ea676733 | 631 | |
4b2414d0 | 632 | /* Turn on quotas so that they are updated correctly */ |
1751e8a6 | 633 | quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY); |
4b2414d0 CY |
634 | #endif |
635 | ||
55141486 | 636 | start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi); |
3c642985 | 637 | orphan_blocks = __start_sum_addr(sbi) - 1 - __cp_payload(sbi); |
127e670a | 638 | |
26879fb1 | 639 | ra_meta_pages(sbi, start_blk, orphan_blocks, META_CP, true); |
662befda | 640 | |
3c642985 | 641 | for (i = 0; i < orphan_blocks; i++) { |
127e670a JK |
642 | struct page *page = get_meta_page(sbi, start_blk + i); |
643 | struct f2fs_orphan_block *orphan_blk; | |
644 | ||
645 | orphan_blk = (struct f2fs_orphan_block *)page_address(page); | |
646 | for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) { | |
647 | nid_t ino = le32_to_cpu(orphan_blk->ino[j]); | |
8c14bfad CY |
648 | err = recover_orphan_inode(sbi, ino); |
649 | if (err) { | |
650 | f2fs_put_page(page, 1); | |
4b2414d0 | 651 | goto out; |
8c14bfad | 652 | } |
127e670a JK |
653 | } |
654 | f2fs_put_page(page, 1); | |
655 | } | |
656 | /* clear Orphan Flag */ | |
aaec2b1d | 657 | clear_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG); |
4b2414d0 CY |
658 | out: |
659 | #ifdef CONFIG_QUOTA | |
660 | /* Turn quotas off */ | |
ea676733 JK |
661 | if (quota_enabled) |
662 | f2fs_quota_off_umount(sbi->sb); | |
4b2414d0 | 663 | #endif |
1751e8a6 | 664 | sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */ |
4b2414d0 CY |
665 | |
666 | return err; | |
127e670a JK |
667 | } |
668 | ||
669 | static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk) | |
670 | { | |
502c6e0b | 671 | struct list_head *head; |
127e670a | 672 | struct f2fs_orphan_block *orphan_blk = NULL; |
127e670a | 673 | unsigned int nentries = 0; |
bd936f84 | 674 | unsigned short index = 1; |
8c402946 | 675 | unsigned short orphan_blocks; |
4531929e | 676 | struct page *page = NULL; |
6451e041 | 677 | struct ino_entry *orphan = NULL; |
67298804 | 678 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a | 679 | |
67298804 | 680 | orphan_blocks = GET_ORPHAN_BLOCKS(im->ino_num); |
8c402946 | 681 | |
d6c67a4f JK |
682 | /* |
683 | * we don't need to do spin_lock(&im->ino_lock) here, since all the | |
684 | * orphan inode operations are covered under f2fs_lock_op(). | |
685 | * And, spin_lock should be avoided due to page operations below. | |
686 | */ | |
67298804 | 687 | head = &im->ino_list; |
127e670a JK |
688 | |
689 | /* loop for each orphan inode entry and write them in Jornal block */ | |
502c6e0b GZ |
690 | list_for_each_entry(orphan, head, list) { |
691 | if (!page) { | |
bd936f84 | 692 | page = grab_meta_page(sbi, start_blk++); |
502c6e0b GZ |
693 | orphan_blk = |
694 | (struct f2fs_orphan_block *)page_address(page); | |
695 | memset(orphan_blk, 0, sizeof(*orphan_blk)); | |
696 | } | |
127e670a | 697 | |
36795567 | 698 | orphan_blk->ino[nentries++] = cpu_to_le32(orphan->ino); |
127e670a | 699 | |
36795567 | 700 | if (nentries == F2FS_ORPHANS_PER_BLOCK) { |
127e670a JK |
701 | /* |
702 | * an orphan block is full of 1020 entries, | |
703 | * then we need to flush current orphan blocks | |
704 | * and bring another one in memory | |
705 | */ | |
706 | orphan_blk->blk_addr = cpu_to_le16(index); | |
707 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
708 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
709 | set_page_dirty(page); | |
710 | f2fs_put_page(page, 1); | |
711 | index++; | |
127e670a JK |
712 | nentries = 0; |
713 | page = NULL; | |
714 | } | |
502c6e0b | 715 | } |
127e670a | 716 | |
502c6e0b GZ |
717 | if (page) { |
718 | orphan_blk->blk_addr = cpu_to_le16(index); | |
719 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
720 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
721 | set_page_dirty(page); | |
722 | f2fs_put_page(page, 1); | |
127e670a | 723 | } |
127e670a JK |
724 | } |
725 | ||
fc0065ad TY |
726 | static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr, |
727 | struct f2fs_checkpoint **cp_block, struct page **cp_page, | |
728 | unsigned long long *version) | |
127e670a | 729 | { |
127e670a | 730 | unsigned long blk_size = sbi->blocksize; |
fc0065ad | 731 | size_t crc_offset = 0; |
7e586fa0 | 732 | __u32 crc = 0; |
127e670a | 733 | |
fc0065ad TY |
734 | *cp_page = get_meta_page(sbi, cp_addr); |
735 | *cp_block = (struct f2fs_checkpoint *)page_address(*cp_page); | |
127e670a | 736 | |
fc0065ad | 737 | crc_offset = le32_to_cpu((*cp_block)->checksum_offset); |
c6f89dfd | 738 | if (crc_offset > (blk_size - sizeof(__le32))) { |
fc0065ad TY |
739 | f2fs_msg(sbi->sb, KERN_WARNING, |
740 | "invalid crc_offset: %zu", crc_offset); | |
741 | return -EINVAL; | |
742 | } | |
127e670a | 743 | |
ced2c7ea | 744 | crc = cur_cp_crc(*cp_block); |
fc0065ad TY |
745 | if (!f2fs_crc_valid(sbi, crc, *cp_block, crc_offset)) { |
746 | f2fs_msg(sbi->sb, KERN_WARNING, "invalid crc value"); | |
747 | return -EINVAL; | |
748 | } | |
127e670a | 749 | |
fc0065ad TY |
750 | *version = cur_cp_version(*cp_block); |
751 | return 0; | |
752 | } | |
127e670a | 753 | |
fc0065ad TY |
754 | static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, |
755 | block_t cp_addr, unsigned long long *version) | |
756 | { | |
757 | struct page *cp_page_1 = NULL, *cp_page_2 = NULL; | |
758 | struct f2fs_checkpoint *cp_block = NULL; | |
759 | unsigned long long cur_version = 0, pre_version = 0; | |
760 | int err; | |
127e670a | 761 | |
fc0065ad TY |
762 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
763 | &cp_page_1, version); | |
764 | if (err) | |
765 | goto invalid_cp1; | |
766 | pre_version = *version; | |
127e670a | 767 | |
fc0065ad TY |
768 | cp_addr += le32_to_cpu(cp_block->cp_pack_total_block_count) - 1; |
769 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, | |
770 | &cp_page_2, version); | |
771 | if (err) | |
127e670a | 772 | goto invalid_cp2; |
fc0065ad | 773 | cur_version = *version; |
127e670a JK |
774 | |
775 | if (cur_version == pre_version) { | |
776 | *version = cur_version; | |
777 | f2fs_put_page(cp_page_2, 1); | |
778 | return cp_page_1; | |
779 | } | |
780 | invalid_cp2: | |
781 | f2fs_put_page(cp_page_2, 1); | |
782 | invalid_cp1: | |
783 | f2fs_put_page(cp_page_1, 1); | |
784 | return NULL; | |
785 | } | |
786 | ||
787 | int get_valid_checkpoint(struct f2fs_sb_info *sbi) | |
788 | { | |
789 | struct f2fs_checkpoint *cp_block; | |
790 | struct f2fs_super_block *fsb = sbi->raw_super; | |
791 | struct page *cp1, *cp2, *cur_page; | |
792 | unsigned long blk_size = sbi->blocksize; | |
793 | unsigned long long cp1_version = 0, cp2_version = 0; | |
794 | unsigned long long cp_start_blk_no; | |
55141486 | 795 | unsigned int cp_blks = 1 + __cp_payload(sbi); |
1dbe4152 CL |
796 | block_t cp_blk_no; |
797 | int i; | |
127e670a | 798 | |
acbf054d | 799 | sbi->ckpt = f2fs_kzalloc(sbi, cp_blks * blk_size, GFP_KERNEL); |
127e670a JK |
800 | if (!sbi->ckpt) |
801 | return -ENOMEM; | |
802 | /* | |
803 | * Finding out valid cp block involves read both | |
804 | * sets( cp pack1 and cp pack 2) | |
805 | */ | |
806 | cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
807 | cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version); | |
808 | ||
809 | /* The second checkpoint pack should start at the next segment */ | |
f9a4e6df JK |
810 | cp_start_blk_no += ((unsigned long long)1) << |
811 | le32_to_cpu(fsb->log_blocks_per_seg); | |
127e670a JK |
812 | cp2 = validate_checkpoint(sbi, cp_start_blk_no, &cp2_version); |
813 | ||
814 | if (cp1 && cp2) { | |
815 | if (ver_after(cp2_version, cp1_version)) | |
816 | cur_page = cp2; | |
817 | else | |
818 | cur_page = cp1; | |
819 | } else if (cp1) { | |
820 | cur_page = cp1; | |
821 | } else if (cp2) { | |
822 | cur_page = cp2; | |
823 | } else { | |
824 | goto fail_no_cp; | |
825 | } | |
826 | ||
827 | cp_block = (struct f2fs_checkpoint *)page_address(cur_page); | |
828 | memcpy(sbi->ckpt, cp_block, blk_size); | |
829 | ||
984ec63c SL |
830 | /* Sanity checking of checkpoint */ |
831 | if (sanity_check_ckpt(sbi)) | |
a2125ff7 | 832 | goto free_fail_no_cp; |
984ec63c | 833 | |
8508e44a JK |
834 | if (cur_page == cp1) |
835 | sbi->cur_cp_pack = 1; | |
836 | else | |
837 | sbi->cur_cp_pack = 2; | |
984ec63c | 838 | |
1dbe4152 CL |
839 | if (cp_blks <= 1) |
840 | goto done; | |
841 | ||
842 | cp_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
843 | if (cur_page == cp2) | |
844 | cp_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg); | |
845 | ||
846 | for (i = 1; i < cp_blks; i++) { | |
847 | void *sit_bitmap_ptr; | |
848 | unsigned char *ckpt = (unsigned char *)sbi->ckpt; | |
849 | ||
850 | cur_page = get_meta_page(sbi, cp_blk_no + i); | |
851 | sit_bitmap_ptr = page_address(cur_page); | |
852 | memcpy(ckpt + i * blk_size, sit_bitmap_ptr, blk_size); | |
853 | f2fs_put_page(cur_page, 1); | |
854 | } | |
855 | done: | |
127e670a JK |
856 | f2fs_put_page(cp1, 1); |
857 | f2fs_put_page(cp2, 1); | |
858 | return 0; | |
859 | ||
a2125ff7 JK |
860 | free_fail_no_cp: |
861 | f2fs_put_page(cp1, 1); | |
862 | f2fs_put_page(cp2, 1); | |
127e670a JK |
863 | fail_no_cp: |
864 | kfree(sbi->ckpt); | |
865 | return -EINVAL; | |
866 | } | |
867 | ||
c227f912 | 868 | static void __add_dirty_inode(struct inode *inode, enum inode_type type) |
127e670a | 869 | { |
4081363f | 870 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 871 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
127e670a | 872 | |
91942321 | 873 | if (is_inode_flag_set(inode, flag)) |
2710fd7e | 874 | return; |
2d7b822a | 875 | |
91942321 | 876 | set_inode_flag(inode, flag); |
99f4b917 CY |
877 | if (!f2fs_is_volatile_file(inode)) |
878 | list_add_tail(&F2FS_I(inode)->dirty_list, | |
879 | &sbi->inode_list[type]); | |
33fbd510 | 880 | stat_inc_dirty_inode(sbi, type); |
5deb8267 JK |
881 | } |
882 | ||
c227f912 | 883 | static void __remove_dirty_inode(struct inode *inode, enum inode_type type) |
6ad7609a | 884 | { |
c227f912 | 885 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
6ad7609a | 886 | |
91942321 | 887 | if (get_dirty_pages(inode) || !is_inode_flag_set(inode, flag)) |
6ad7609a CY |
888 | return; |
889 | ||
91942321 JK |
890 | list_del_init(&F2FS_I(inode)->dirty_list); |
891 | clear_inode_flag(inode, flag); | |
33fbd510 | 892 | stat_dec_dirty_inode(F2FS_I_SB(inode), type); |
6ad7609a CY |
893 | } |
894 | ||
a7ffdbe2 | 895 | void update_dirty_page(struct inode *inode, struct page *page) |
5deb8267 | 896 | { |
4081363f | 897 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 898 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
5deb8267 | 899 | |
5ac9f36f CY |
900 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
901 | !S_ISLNK(inode->i_mode)) | |
127e670a | 902 | return; |
7bd59381 | 903 | |
1c4bf763 JK |
904 | spin_lock(&sbi->inode_lock[type]); |
905 | if (type != FILE_INODE || test_opt(sbi, DATA_FLUSH)) | |
10aa97c3 | 906 | __add_dirty_inode(inode, type); |
b951a4ec | 907 | inode_inc_dirty_pages(inode); |
1c4bf763 JK |
908 | spin_unlock(&sbi->inode_lock[type]); |
909 | ||
a7ffdbe2 | 910 | SetPagePrivate(page); |
9e4ded3f | 911 | f2fs_trace_pid(page); |
5deb8267 JK |
912 | } |
913 | ||
c227f912 | 914 | void remove_dirty_inode(struct inode *inode) |
127e670a | 915 | { |
4081363f | 916 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 917 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
127e670a | 918 | |
c227f912 CY |
919 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
920 | !S_ISLNK(inode->i_mode)) | |
127e670a JK |
921 | return; |
922 | ||
10aa97c3 JK |
923 | if (type == FILE_INODE && !test_opt(sbi, DATA_FLUSH)) |
924 | return; | |
925 | ||
c227f912 CY |
926 | spin_lock(&sbi->inode_lock[type]); |
927 | __remove_dirty_inode(inode, type); | |
928 | spin_unlock(&sbi->inode_lock[type]); | |
74d0b917 JK |
929 | } |
930 | ||
6d5a1495 | 931 | int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type) |
127e670a | 932 | { |
ce3b7d80 | 933 | struct list_head *head; |
127e670a | 934 | struct inode *inode; |
2710fd7e | 935 | struct f2fs_inode_info *fi; |
4cf18537 | 936 | bool is_dir = (type == DIR_INODE); |
4db08d01 | 937 | unsigned long ino = 0; |
4cf18537 CY |
938 | |
939 | trace_f2fs_sync_dirty_inodes_enter(sbi->sb, is_dir, | |
940 | get_pages(sbi, is_dir ? | |
941 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
127e670a | 942 | retry: |
af41d3ee | 943 | if (unlikely(f2fs_cp_error(sbi))) |
6d5a1495 | 944 | return -EIO; |
af41d3ee | 945 | |
c227f912 | 946 | spin_lock(&sbi->inode_lock[type]); |
ce3b7d80 | 947 | |
c227f912 | 948 | head = &sbi->inode_list[type]; |
127e670a | 949 | if (list_empty(head)) { |
c227f912 | 950 | spin_unlock(&sbi->inode_lock[type]); |
4cf18537 CY |
951 | trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir, |
952 | get_pages(sbi, is_dir ? | |
953 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
6d5a1495 | 954 | return 0; |
127e670a | 955 | } |
939afa94 | 956 | fi = list_first_entry(head, struct f2fs_inode_info, dirty_list); |
2710fd7e | 957 | inode = igrab(&fi->vfs_inode); |
c227f912 | 958 | spin_unlock(&sbi->inode_lock[type]); |
127e670a | 959 | if (inode) { |
4db08d01 JK |
960 | unsigned long cur_ino = inode->i_ino; |
961 | ||
b0af6d49 CY |
962 | if (is_dir) |
963 | F2FS_I(inode)->cp_task = current; | |
964 | ||
87d6f890 | 965 | filemap_fdatawrite(inode->i_mapping); |
b0af6d49 CY |
966 | |
967 | if (is_dir) | |
968 | F2FS_I(inode)->cp_task = NULL; | |
969 | ||
127e670a | 970 | iput(inode); |
4db08d01 JK |
971 | /* We need to give cpu to another writers. */ |
972 | if (ino == cur_ino) { | |
973 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
974 | cond_resched(); | |
975 | } else { | |
976 | ino = cur_ino; | |
977 | } | |
127e670a JK |
978 | } else { |
979 | /* | |
980 | * We should submit bio, since it exists several | |
981 | * wribacking dentry pages in the freeing inode. | |
982 | */ | |
b9109b0e | 983 | f2fs_submit_merged_write(sbi, DATA); |
7ecebe5e | 984 | cond_resched(); |
127e670a JK |
985 | } |
986 | goto retry; | |
987 | } | |
988 | ||
0f18b462 JK |
989 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi) |
990 | { | |
991 | struct list_head *head = &sbi->inode_list[DIRTY_META]; | |
992 | struct inode *inode; | |
993 | struct f2fs_inode_info *fi; | |
994 | s64 total = get_pages(sbi, F2FS_DIRTY_IMETA); | |
995 | ||
996 | while (total--) { | |
997 | if (unlikely(f2fs_cp_error(sbi))) | |
998 | return -EIO; | |
999 | ||
1000 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
1001 | if (list_empty(head)) { | |
1002 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1003 | return 0; | |
1004 | } | |
939afa94 | 1005 | fi = list_first_entry(head, struct f2fs_inode_info, |
0f18b462 JK |
1006 | gdirty_list); |
1007 | inode = igrab(&fi->vfs_inode); | |
1008 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1009 | if (inode) { | |
18340edc JK |
1010 | sync_inode_metadata(inode, 0); |
1011 | ||
1012 | /* it's on eviction */ | |
1013 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) | |
1014 | update_inode_page(inode); | |
0f18b462 JK |
1015 | iput(inode); |
1016 | } | |
dee668c1 | 1017 | } |
0f18b462 JK |
1018 | return 0; |
1019 | } | |
1020 | ||
59c9081b YH |
1021 | static void __prepare_cp_block(struct f2fs_sb_info *sbi) |
1022 | { | |
1023 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1024 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
1025 | nid_t last_nid = nm_i->next_scan_nid; | |
1026 | ||
1027 | next_free_nid(sbi, &last_nid); | |
1028 | ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi)); | |
1029 | ckpt->valid_node_count = cpu_to_le32(valid_node_count(sbi)); | |
1030 | ckpt->valid_inode_count = cpu_to_le32(valid_inode_count(sbi)); | |
1031 | ckpt->next_free_nid = cpu_to_le32(last_nid); | |
1032 | } | |
1033 | ||
0a8165d7 | 1034 | /* |
127e670a JK |
1035 | * Freeze all the FS-operations for checkpoint. |
1036 | */ | |
cf779cab | 1037 | static int block_operations(struct f2fs_sb_info *sbi) |
127e670a | 1038 | { |
127e670a JK |
1039 | struct writeback_control wbc = { |
1040 | .sync_mode = WB_SYNC_ALL, | |
1041 | .nr_to_write = LONG_MAX, | |
1042 | .for_reclaim = 0, | |
1043 | }; | |
c718379b | 1044 | struct blk_plug plug; |
cf779cab | 1045 | int err = 0; |
c718379b JK |
1046 | |
1047 | blk_start_plug(&plug); | |
1048 | ||
39936837 | 1049 | retry_flush_dents: |
e479556b | 1050 | f2fs_lock_all(sbi); |
127e670a | 1051 | /* write all the dirty dentry pages */ |
127e670a | 1052 | if (get_pages(sbi, F2FS_DIRTY_DENTS)) { |
e479556b | 1053 | f2fs_unlock_all(sbi); |
6d5a1495 CY |
1054 | err = sync_dirty_inodes(sbi, DIR_INODE); |
1055 | if (err) | |
cf779cab | 1056 | goto out; |
30973883 | 1057 | cond_resched(); |
39936837 | 1058 | goto retry_flush_dents; |
127e670a JK |
1059 | } |
1060 | ||
59c9081b YH |
1061 | /* |
1062 | * POR: we should ensure that there are no dirty node pages | |
1063 | * until finishing nat/sit flush. inode->i_blocks can be updated. | |
1064 | */ | |
1065 | down_write(&sbi->node_change); | |
1066 | ||
0f18b462 | 1067 | if (get_pages(sbi, F2FS_DIRTY_IMETA)) { |
59c9081b | 1068 | up_write(&sbi->node_change); |
0f18b462 JK |
1069 | f2fs_unlock_all(sbi); |
1070 | err = f2fs_sync_inode_meta(sbi); | |
1071 | if (err) | |
1072 | goto out; | |
30973883 | 1073 | cond_resched(); |
0f18b462 JK |
1074 | goto retry_flush_dents; |
1075 | } | |
1076 | ||
39936837 | 1077 | retry_flush_nodes: |
b3582c68 | 1078 | down_write(&sbi->node_write); |
127e670a JK |
1079 | |
1080 | if (get_pages(sbi, F2FS_DIRTY_NODES)) { | |
b3582c68 | 1081 | up_write(&sbi->node_write); |
b0af6d49 | 1082 | err = sync_node_pages(sbi, &wbc, false, FS_CP_NODE_IO); |
6d5a1495 | 1083 | if (err) { |
59c9081b | 1084 | up_write(&sbi->node_change); |
cf779cab | 1085 | f2fs_unlock_all(sbi); |
cf779cab JK |
1086 | goto out; |
1087 | } | |
30973883 | 1088 | cond_resched(); |
39936837 | 1089 | goto retry_flush_nodes; |
127e670a | 1090 | } |
59c9081b YH |
1091 | |
1092 | /* | |
1093 | * sbi->node_change is used only for AIO write_begin path which produces | |
1094 | * dirty node blocks and some checkpoint values by block allocation. | |
1095 | */ | |
1096 | __prepare_cp_block(sbi); | |
1097 | up_write(&sbi->node_change); | |
cf779cab | 1098 | out: |
c718379b | 1099 | blk_finish_plug(&plug); |
cf779cab | 1100 | return err; |
127e670a JK |
1101 | } |
1102 | ||
1103 | static void unblock_operations(struct f2fs_sb_info *sbi) | |
1104 | { | |
b3582c68 | 1105 | up_write(&sbi->node_write); |
e479556b | 1106 | f2fs_unlock_all(sbi); |
127e670a JK |
1107 | } |
1108 | ||
fb51b5ef CL |
1109 | static void wait_on_all_pages_writeback(struct f2fs_sb_info *sbi) |
1110 | { | |
1111 | DEFINE_WAIT(wait); | |
1112 | ||
1113 | for (;;) { | |
1114 | prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE); | |
1115 | ||
36951b38 | 1116 | if (!get_pages(sbi, F2FS_WB_CP_DATA)) |
fb51b5ef CL |
1117 | break; |
1118 | ||
0ff21646 | 1119 | io_schedule_timeout(5*HZ); |
fb51b5ef CL |
1120 | } |
1121 | finish_wait(&sbi->cp_wait, &wait); | |
1122 | } | |
1123 | ||
e4c5d848 JK |
1124 | static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
1125 | { | |
1126 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num; | |
1127 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d1aa2453 | 1128 | unsigned long flags; |
e4c5d848 | 1129 | |
d1aa2453 | 1130 | spin_lock_irqsave(&sbi->cp_lock, flags); |
e4c5d848 | 1131 | |
c473f1a9 | 1132 | if ((cpc->reason & CP_UMOUNT) && |
10047f53 | 1133 | le32_to_cpu(ckpt->cp_pack_total_block_count) > |
22ad0b6a JK |
1134 | sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) |
1135 | disable_nat_bits(sbi, false); | |
1136 | ||
1f43e2ad CY |
1137 | if (cpc->reason & CP_TRIMMED) |
1138 | __set_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
1139 | ||
c473f1a9 | 1140 | if (cpc->reason & CP_UMOUNT) |
e4c5d848 JK |
1141 | __set_ckpt_flags(ckpt, CP_UMOUNT_FLAG); |
1142 | else | |
1143 | __clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG); | |
1144 | ||
c473f1a9 | 1145 | if (cpc->reason & CP_FASTBOOT) |
e4c5d848 JK |
1146 | __set_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); |
1147 | else | |
1148 | __clear_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); | |
1149 | ||
1150 | if (orphan_num) | |
1151 | __set_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1152 | else | |
1153 | __clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1154 | ||
1155 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) | |
1156 | __set_ckpt_flags(ckpt, CP_FSCK_FLAG); | |
1157 | ||
1158 | /* set this flag to activate crc|cp_ver for recovery */ | |
1159 | __set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG); | |
f2367923 | 1160 | __clear_ckpt_flags(ckpt, CP_NOCRC_RECOVERY_FLAG); |
e4c5d848 | 1161 | |
d1aa2453 | 1162 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
e4c5d848 JK |
1163 | } |
1164 | ||
c34f42e2 | 1165 | static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1166 | { |
1167 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
77041823 | 1168 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
d1aa2453 | 1169 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num, flags; |
127e670a | 1170 | block_t start_blk; |
127e670a | 1171 | unsigned int data_sum_blocks, orphan_blocks; |
7e586fa0 | 1172 | __u32 crc32 = 0; |
127e670a | 1173 | int i; |
55141486 | 1174 | int cp_payload_blks = __cp_payload(sbi); |
8f1dbbbb SL |
1175 | struct super_block *sb = sbi->sb; |
1176 | struct curseg_info *seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
1177 | u64 kbytes_written; | |
1228b482 | 1178 | int err; |
127e670a JK |
1179 | |
1180 | /* Flush all the NAT/SIT pages */ | |
cf779cab | 1181 | while (get_pages(sbi, F2FS_DIRTY_META)) { |
b0af6d49 | 1182 | sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
cf779cab | 1183 | if (unlikely(f2fs_cp_error(sbi))) |
c34f42e2 | 1184 | return -EIO; |
cf779cab | 1185 | } |
127e670a | 1186 | |
127e670a JK |
1187 | /* |
1188 | * modify checkpoint | |
1189 | * version number is already updated | |
1190 | */ | |
1191 | ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi)); | |
127e670a | 1192 | ckpt->free_segment_count = cpu_to_le32(free_segments(sbi)); |
b5b82205 | 1193 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
127e670a JK |
1194 | ckpt->cur_node_segno[i] = |
1195 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE)); | |
1196 | ckpt->cur_node_blkoff[i] = | |
1197 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_NODE)); | |
1198 | ckpt->alloc_type[i + CURSEG_HOT_NODE] = | |
1199 | curseg_alloc_type(sbi, i + CURSEG_HOT_NODE); | |
1200 | } | |
b5b82205 | 1201 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { |
127e670a JK |
1202 | ckpt->cur_data_segno[i] = |
1203 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA)); | |
1204 | ckpt->cur_data_blkoff[i] = | |
1205 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_DATA)); | |
1206 | ckpt->alloc_type[i + CURSEG_HOT_DATA] = | |
1207 | curseg_alloc_type(sbi, i + CURSEG_HOT_DATA); | |
1208 | } | |
1209 | ||
127e670a | 1210 | /* 2 cp + n data seg summary + orphan inode blocks */ |
3fa06d7b | 1211 | data_sum_blocks = npages_for_summary_flush(sbi, false); |
d1aa2453 | 1212 | spin_lock_irqsave(&sbi->cp_lock, flags); |
b5b82205 | 1213 | if (data_sum_blocks < NR_CURSEG_DATA_TYPE) |
aaec2b1d | 1214 | __set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
127e670a | 1215 | else |
aaec2b1d | 1216 | __clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
d1aa2453 | 1217 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
127e670a | 1218 | |
67298804 | 1219 | orphan_blocks = GET_ORPHAN_BLOCKS(orphan_num); |
1dbe4152 CL |
1220 | ckpt->cp_pack_start_sum = cpu_to_le32(1 + cp_payload_blks + |
1221 | orphan_blocks); | |
127e670a | 1222 | |
119ee914 | 1223 | if (__remain_node_summaries(cpc->reason)) |
b5b82205 | 1224 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS+ |
1dbe4152 CL |
1225 | cp_payload_blks + data_sum_blocks + |
1226 | orphan_blocks + NR_CURSEG_NODE_TYPE); | |
119ee914 | 1227 | else |
b5b82205 | 1228 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
1dbe4152 CL |
1229 | cp_payload_blks + data_sum_blocks + |
1230 | orphan_blocks); | |
119ee914 | 1231 | |
e4c5d848 JK |
1232 | /* update ckpt flag for checkpoint */ |
1233 | update_ckpt_flags(sbi, cpc); | |
a468f0ef | 1234 | |
127e670a JK |
1235 | /* update SIT/NAT bitmap */ |
1236 | get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP)); | |
1237 | get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP)); | |
1238 | ||
43b6573b | 1239 | crc32 = f2fs_crc32(sbi, ckpt, le32_to_cpu(ckpt->checksum_offset)); |
7e586fa0 JK |
1240 | *((__le32 *)((unsigned char *)ckpt + |
1241 | le32_to_cpu(ckpt->checksum_offset))) | |
127e670a JK |
1242 | = cpu_to_le32(crc32); |
1243 | ||
8508e44a | 1244 | start_blk = __start_cp_next_addr(sbi); |
127e670a | 1245 | |
22ad0b6a JK |
1246 | /* write nat bits */ |
1247 | if (enabled_nat_bits(sbi, cpc)) { | |
1248 | __u64 cp_ver = cur_cp_version(ckpt); | |
22ad0b6a JK |
1249 | block_t blk; |
1250 | ||
1251 | cp_ver |= ((__u64)crc32 << 32); | |
1252 | *(__le64 *)nm_i->nat_bits = cpu_to_le64(cp_ver); | |
1253 | ||
1254 | blk = start_blk + sbi->blocks_per_seg - nm_i->nat_bits_blocks; | |
1255 | for (i = 0; i < nm_i->nat_bits_blocks; i++) | |
1256 | update_meta_page(sbi, nm_i->nat_bits + | |
1257 | (i << F2FS_BLKSIZE_BITS), blk + i); | |
1258 | ||
1259 | /* Flush all the NAT BITS pages */ | |
1260 | while (get_pages(sbi, F2FS_DIRTY_META)) { | |
b0af6d49 | 1261 | sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
22ad0b6a JK |
1262 | if (unlikely(f2fs_cp_error(sbi))) |
1263 | return -EIO; | |
1264 | } | |
1265 | } | |
1266 | ||
a7230d16 JK |
1267 | /* need to wait for end_io results */ |
1268 | wait_on_all_pages_writeback(sbi); | |
1269 | if (unlikely(f2fs_cp_error(sbi))) | |
c34f42e2 | 1270 | return -EIO; |
a7230d16 | 1271 | |
1228b482 CY |
1272 | /* flush all device cache */ |
1273 | err = f2fs_flush_device_cache(sbi); | |
1274 | if (err) | |
1275 | return err; | |
1276 | ||
127e670a | 1277 | /* write out checkpoint buffer at block 0 */ |
381722d2 CY |
1278 | update_meta_page(sbi, ckpt, start_blk++); |
1279 | ||
1280 | for (i = 1; i < 1 + cp_payload_blks; i++) | |
1281 | update_meta_page(sbi, (char *)ckpt + i * F2FS_BLKSIZE, | |
1282 | start_blk++); | |
1dbe4152 | 1283 | |
67298804 | 1284 | if (orphan_num) { |
127e670a JK |
1285 | write_orphan_inodes(sbi, start_blk); |
1286 | start_blk += orphan_blocks; | |
1287 | } | |
1288 | ||
1289 | write_data_summaries(sbi, start_blk); | |
1290 | start_blk += data_sum_blocks; | |
8f1dbbbb SL |
1291 | |
1292 | /* Record write statistics in the hot node summary */ | |
1293 | kbytes_written = sbi->kbytes_written; | |
1294 | if (sb->s_bdev->bd_part) | |
1295 | kbytes_written += BD_PART_WRITTEN(sbi); | |
1296 | ||
b7ad7512 | 1297 | seg_i->journal->info.kbytes_written = cpu_to_le64(kbytes_written); |
8f1dbbbb | 1298 | |
119ee914 | 1299 | if (__remain_node_summaries(cpc->reason)) { |
127e670a JK |
1300 | write_node_summaries(sbi, start_blk); |
1301 | start_blk += NR_CURSEG_NODE_TYPE; | |
1302 | } | |
1303 | ||
1304 | /* writeout checkpoint block */ | |
381722d2 | 1305 | update_meta_page(sbi, ckpt, start_blk); |
127e670a JK |
1306 | |
1307 | /* wait for previous submitted node/meta pages writeback */ | |
fb51b5ef | 1308 | wait_on_all_pages_writeback(sbi); |
127e670a | 1309 | |
cf779cab | 1310 | if (unlikely(f2fs_cp_error(sbi))) |
c34f42e2 | 1311 | return -EIO; |
cf779cab | 1312 | |
80dd9c0e CY |
1313 | filemap_fdatawait_range(NODE_MAPPING(sbi), 0, LLONG_MAX); |
1314 | filemap_fdatawait_range(META_MAPPING(sbi), 0, LLONG_MAX); | |
127e670a JK |
1315 | |
1316 | /* update user_block_counts */ | |
1317 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
41382ec4 | 1318 | percpu_counter_set(&sbi->alloc_valid_block_count, 0); |
127e670a JK |
1319 | |
1320 | /* Here, we only have one bio having CP pack */ | |
b0af6d49 | 1321 | sync_meta_pages(sbi, META_FLUSH, LONG_MAX, FS_CP_META_IO); |
127e670a | 1322 | |
6a8f8ca5 JK |
1323 | /* wait for previous submitted meta pages writeback */ |
1324 | wait_on_all_pages_writeback(sbi); | |
1325 | ||
74ef9241 | 1326 | release_ino_entry(sbi, false); |
cf779cab JK |
1327 | |
1328 | if (unlikely(f2fs_cp_error(sbi))) | |
c34f42e2 | 1329 | return -EIO; |
cf779cab | 1330 | |
caf0047e | 1331 | clear_sbi_flag(sbi, SBI_IS_DIRTY); |
bbf156f7 | 1332 | clear_sbi_flag(sbi, SBI_NEED_CP); |
8508e44a | 1333 | __set_cp_next_pack(sbi); |
c34f42e2 | 1334 | |
c2a080ae CY |
1335 | /* |
1336 | * redirty superblock if metadata like node page or inode cache is | |
1337 | * updated during writing checkpoint. | |
1338 | */ | |
1339 | if (get_pages(sbi, F2FS_DIRTY_NODES) || | |
1340 | get_pages(sbi, F2FS_DIRTY_IMETA)) | |
1341 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1342 | ||
1343 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_DENTS)); | |
1344 | ||
c34f42e2 | 1345 | return 0; |
127e670a JK |
1346 | } |
1347 | ||
0a8165d7 | 1348 | /* |
e1c42045 | 1349 | * We guarantee that this checkpoint procedure will not fail. |
127e670a | 1350 | */ |
c34f42e2 | 1351 | int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1352 | { |
1353 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1354 | unsigned long long ckpt_ver; | |
c34f42e2 | 1355 | int err = 0; |
127e670a | 1356 | |
43727527 | 1357 | mutex_lock(&sbi->cp_mutex); |
8501017e | 1358 | |
caf0047e | 1359 | if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) && |
c473f1a9 CY |
1360 | ((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) || |
1361 | ((cpc->reason & CP_DISCARD) && !sbi->discard_blks))) | |
8501017e | 1362 | goto out; |
c34f42e2 CY |
1363 | if (unlikely(f2fs_cp_error(sbi))) { |
1364 | err = -EIO; | |
cf779cab | 1365 | goto out; |
c34f42e2 CY |
1366 | } |
1367 | if (f2fs_readonly(sbi->sb)) { | |
1368 | err = -EROFS; | |
11504a8e | 1369 | goto out; |
c34f42e2 | 1370 | } |
2bda542d WL |
1371 | |
1372 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); | |
1373 | ||
c34f42e2 CY |
1374 | err = block_operations(sbi); |
1375 | if (err) | |
cf779cab | 1376 | goto out; |
127e670a | 1377 | |
75ab4cb8 | 1378 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish block_ops"); |
2af4bd6c | 1379 | |
b9109b0e | 1380 | f2fs_flush_merged_writes(sbi); |
127e670a | 1381 | |
58cce381 | 1382 | /* this is the case of multiple fstrims without any changes */ |
c473f1a9 | 1383 | if (cpc->reason & CP_DISCARD) { |
25290fa5 JK |
1384 | if (!exist_trim_candidates(sbi, cpc)) { |
1385 | unblock_operations(sbi); | |
1386 | goto out; | |
1387 | } | |
1388 | ||
0333ad4e JK |
1389 | if (NM_I(sbi)->dirty_nat_cnt == 0 && |
1390 | SIT_I(sbi)->dirty_sentries == 0 && | |
1391 | prefree_segments(sbi) == 0) { | |
1392 | flush_sit_entries(sbi, cpc); | |
1393 | clear_prefree_segments(sbi, cpc); | |
1394 | unblock_operations(sbi); | |
1395 | goto out; | |
1396 | } | |
58cce381 YH |
1397 | } |
1398 | ||
127e670a JK |
1399 | /* |
1400 | * update checkpoint pack index | |
1401 | * Increase the version number so that | |
1402 | * SIT entries and seg summaries are written at correct place | |
1403 | */ | |
d71b5564 | 1404 | ckpt_ver = cur_cp_version(ckpt); |
127e670a JK |
1405 | ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver); |
1406 | ||
1407 | /* write cached NAT/SIT entries to NAT/SIT area */ | |
22ad0b6a | 1408 | flush_nat_entries(sbi, cpc); |
4b2fecc8 | 1409 | flush_sit_entries(sbi, cpc); |
127e670a | 1410 | |
127e670a | 1411 | /* unlock all the fs_lock[] in do_checkpoint() */ |
c34f42e2 | 1412 | err = do_checkpoint(sbi, cpc); |
4e6a8d9b | 1413 | if (err) |
2dd15654 | 1414 | release_discard_addrs(sbi); |
4e6a8d9b | 1415 | else |
2dd15654 | 1416 | clear_prefree_segments(sbi, cpc); |
275b66b0 | 1417 | |
127e670a | 1418 | unblock_operations(sbi); |
942e0be6 | 1419 | stat_inc_cp_count(sbi->stat_info); |
10027551 | 1420 | |
c473f1a9 | 1421 | if (cpc->reason & CP_RECOVERY) |
10027551 JK |
1422 | f2fs_msg(sbi->sb, KERN_NOTICE, |
1423 | "checkpoint: version = %llx", ckpt_ver); | |
60b99b48 JK |
1424 | |
1425 | /* do checkpoint periodically */ | |
6beceb54 | 1426 | f2fs_update_time(sbi, CP_TIME); |
55d1cdb2 | 1427 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint"); |
8501017e JK |
1428 | out: |
1429 | mutex_unlock(&sbi->cp_mutex); | |
c34f42e2 | 1430 | return err; |
127e670a JK |
1431 | } |
1432 | ||
6451e041 | 1433 | void init_ino_entry_info(struct f2fs_sb_info *sbi) |
127e670a | 1434 | { |
6451e041 JK |
1435 | int i; |
1436 | ||
1437 | for (i = 0; i < MAX_INO_ENTRY; i++) { | |
67298804 CY |
1438 | struct inode_management *im = &sbi->im[i]; |
1439 | ||
1440 | INIT_RADIX_TREE(&im->ino_root, GFP_ATOMIC); | |
1441 | spin_lock_init(&im->ino_lock); | |
1442 | INIT_LIST_HEAD(&im->ino_list); | |
1443 | im->ino_num = 0; | |
6451e041 JK |
1444 | } |
1445 | ||
b5b82205 | 1446 | sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS - |
14b42817 WL |
1447 | NR_CURSEG_TYPE - __cp_payload(sbi)) * |
1448 | F2FS_ORPHANS_PER_BLOCK; | |
127e670a JK |
1449 | } |
1450 | ||
6e6093a8 | 1451 | int __init create_checkpoint_caches(void) |
127e670a | 1452 | { |
6451e041 JK |
1453 | ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry", |
1454 | sizeof(struct ino_entry)); | |
1455 | if (!ino_entry_slab) | |
127e670a | 1456 | return -ENOMEM; |
06292073 CY |
1457 | inode_entry_slab = f2fs_kmem_cache_create("f2fs_inode_entry", |
1458 | sizeof(struct inode_entry)); | |
6bacf52f | 1459 | if (!inode_entry_slab) { |
6451e041 | 1460 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1461 | return -ENOMEM; |
1462 | } | |
1463 | return 0; | |
1464 | } | |
1465 | ||
1466 | void destroy_checkpoint_caches(void) | |
1467 | { | |
6451e041 | 1468 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1469 | kmem_cache_destroy(inode_entry_slab); |
1470 | } |