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, |
0833721e | 71 | .is_meta = is_meta, |
cf04e8eb | 72 | }; |
2b947003 CY |
73 | |
74 | if (unlikely(!is_meta)) | |
04d328de | 75 | fio.op_flags &= ~REQ_META; |
127e670a | 76 | repeat: |
300e129c | 77 | page = f2fs_grab_cache_page(mapping, index, false); |
127e670a JK |
78 | if (!page) { |
79 | cond_resched(); | |
80 | goto repeat; | |
81 | } | |
393ff91f JK |
82 | if (PageUptodate(page)) |
83 | goto out; | |
84 | ||
05ca3632 JK |
85 | fio.page = page; |
86 | ||
86531d6b JK |
87 | if (f2fs_submit_page_bio(&fio)) { |
88 | f2fs_put_page(page, 1); | |
127e670a | 89 | goto repeat; |
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 CY |
97 | |
98 | /* | |
99 | * if there is any IO error when accessing device, make our filesystem | |
100 | * readonly and make sure do not write checkpoint with non-uptodate | |
101 | * meta page. | |
102 | */ | |
103 | if (unlikely(!PageUptodate(page))) | |
38f91ca8 | 104 | f2fs_stop_checkpoint(sbi, false); |
393ff91f | 105 | out: |
127e670a JK |
106 | return page; |
107 | } | |
108 | ||
2b947003 CY |
109 | struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
110 | { | |
111 | return __get_meta_page(sbi, index, true); | |
112 | } | |
113 | ||
114 | /* for POR only */ | |
115 | struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index) | |
116 | { | |
117 | return __get_meta_page(sbi, index, false); | |
118 | } | |
119 | ||
f0c9cada | 120 | bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type) |
662befda CY |
121 | { |
122 | switch (type) { | |
123 | case META_NAT: | |
66b00c18 | 124 | break; |
662befda | 125 | case META_SIT: |
66b00c18 CY |
126 | if (unlikely(blkaddr >= SIT_BLK_CNT(sbi))) |
127 | return false; | |
128 | break; | |
81c1a0f1 | 129 | case META_SSA: |
66b00c18 CY |
130 | if (unlikely(blkaddr >= MAIN_BLKADDR(sbi) || |
131 | blkaddr < SM_I(sbi)->ssa_blkaddr)) | |
132 | return false; | |
133 | break; | |
662befda | 134 | case META_CP: |
66b00c18 CY |
135 | if (unlikely(blkaddr >= SIT_I(sbi)->sit_base_addr || |
136 | blkaddr < __start_cp_addr(sbi))) | |
137 | return false; | |
138 | break; | |
4c521f49 | 139 | case META_POR: |
66b00c18 CY |
140 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
141 | blkaddr < MAIN_BLKADDR(sbi))) | |
142 | return false; | |
143 | break; | |
662befda CY |
144 | default: |
145 | BUG(); | |
146 | } | |
66b00c18 CY |
147 | |
148 | return true; | |
662befda CY |
149 | } |
150 | ||
151 | /* | |
81c1a0f1 | 152 | * Readahead CP/NAT/SIT/SSA pages |
662befda | 153 | */ |
26879fb1 CY |
154 | int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, |
155 | int type, bool sync) | |
662befda | 156 | { |
662befda | 157 | struct page *page; |
4c521f49 | 158 | block_t blkno = start; |
662befda | 159 | struct f2fs_io_info fio = { |
05ca3632 | 160 | .sbi = sbi, |
662befda | 161 | .type = META, |
04d328de | 162 | .op = REQ_OP_READ, |
70fd7614 | 163 | .op_flags = sync ? (REQ_META | REQ_PRIO) : REQ_RAHEAD, |
4375a336 | 164 | .encrypted_page = NULL, |
fb830fc5 | 165 | .in_list = false, |
0833721e | 166 | .is_meta = (type != META_POR), |
662befda | 167 | }; |
e9f5b8b8 | 168 | struct blk_plug plug; |
662befda | 169 | |
2b947003 | 170 | if (unlikely(type == META_POR)) |
04d328de | 171 | fio.op_flags &= ~REQ_META; |
2b947003 | 172 | |
e9f5b8b8 | 173 | blk_start_plug(&plug); |
662befda | 174 | for (; nrpages-- > 0; blkno++) { |
662befda | 175 | |
66b00c18 CY |
176 | if (!is_valid_blkaddr(sbi, blkno, type)) |
177 | goto out; | |
178 | ||
662befda CY |
179 | switch (type) { |
180 | case META_NAT: | |
66b00c18 CY |
181 | if (unlikely(blkno >= |
182 | NAT_BLOCK_OFFSET(NM_I(sbi)->max_nid))) | |
662befda | 183 | blkno = 0; |
66b00c18 | 184 | /* get nat block addr */ |
7a9d7548 | 185 | fio.new_blkaddr = current_nat_addr(sbi, |
662befda CY |
186 | blkno * NAT_ENTRY_PER_BLOCK); |
187 | break; | |
188 | case META_SIT: | |
189 | /* get sit block addr */ | |
7a9d7548 | 190 | fio.new_blkaddr = current_sit_addr(sbi, |
662befda | 191 | blkno * SIT_ENTRY_PER_BLOCK); |
662befda | 192 | break; |
81c1a0f1 | 193 | case META_SSA: |
662befda | 194 | case META_CP: |
4c521f49 | 195 | case META_POR: |
7a9d7548 | 196 | fio.new_blkaddr = blkno; |
662befda CY |
197 | break; |
198 | default: | |
199 | BUG(); | |
200 | } | |
201 | ||
300e129c JK |
202 | page = f2fs_grab_cache_page(META_MAPPING(sbi), |
203 | fio.new_blkaddr, false); | |
662befda CY |
204 | if (!page) |
205 | continue; | |
206 | if (PageUptodate(page)) { | |
662befda CY |
207 | f2fs_put_page(page, 1); |
208 | continue; | |
209 | } | |
210 | ||
05ca3632 | 211 | fio.page = page; |
1919ffc0 | 212 | f2fs_submit_page_bio(&fio); |
662befda CY |
213 | f2fs_put_page(page, 0); |
214 | } | |
215 | out: | |
e9f5b8b8 | 216 | blk_finish_plug(&plug); |
662befda CY |
217 | return blkno - start; |
218 | } | |
219 | ||
635aee1f CY |
220 | void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index) |
221 | { | |
222 | struct page *page; | |
223 | bool readahead = false; | |
224 | ||
225 | page = find_get_page(META_MAPPING(sbi), index); | |
4da7bf5a | 226 | if (!page || !PageUptodate(page)) |
635aee1f CY |
227 | readahead = true; |
228 | f2fs_put_page(page, 0); | |
229 | ||
230 | if (readahead) | |
664ba972 | 231 | ra_meta_pages(sbi, index, BIO_MAX_PAGES, META_POR, true); |
635aee1f CY |
232 | } |
233 | ||
b0af6d49 CY |
234 | static int __f2fs_write_meta_page(struct page *page, |
235 | struct writeback_control *wbc, | |
236 | enum iostat_type io_type) | |
127e670a | 237 | { |
4081363f | 238 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
127e670a | 239 | |
ecda0de3 CY |
240 | trace_f2fs_writepage(page, META); |
241 | ||
db198ae0 CY |
242 | if (unlikely(f2fs_cp_error(sbi))) { |
243 | dec_page_count(sbi, F2FS_DIRTY_META); | |
244 | unlock_page(page); | |
245 | return 0; | |
246 | } | |
caf0047e | 247 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
cfb271d4 | 248 | goto redirty_out; |
857dc4e0 | 249 | if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0)) |
cfb271d4 | 250 | goto redirty_out; |
127e670a | 251 | |
b0af6d49 | 252 | write_meta_page(sbi, page, io_type); |
577e3495 | 253 | dec_page_count(sbi, F2FS_DIRTY_META); |
0c3a5797 CY |
254 | |
255 | if (wbc->for_reclaim) | |
b9109b0e JK |
256 | f2fs_submit_merged_write_cond(sbi, page->mapping->host, |
257 | 0, page->index, META); | |
0c3a5797 | 258 | |
577e3495 | 259 | unlock_page(page); |
857dc4e0 | 260 | |
0c3a5797 | 261 | if (unlikely(f2fs_cp_error(sbi))) |
b9109b0e | 262 | f2fs_submit_merged_write(sbi, META); |
0c3a5797 | 263 | |
577e3495 | 264 | return 0; |
cfb271d4 CY |
265 | |
266 | redirty_out: | |
76f60268 | 267 | redirty_page_for_writepage(wbc, page); |
cfb271d4 | 268 | return AOP_WRITEPAGE_ACTIVATE; |
127e670a JK |
269 | } |
270 | ||
b0af6d49 CY |
271 | static int f2fs_write_meta_page(struct page *page, |
272 | struct writeback_control *wbc) | |
273 | { | |
274 | return __f2fs_write_meta_page(page, wbc, FS_META_IO); | |
275 | } | |
276 | ||
127e670a JK |
277 | static int f2fs_write_meta_pages(struct address_space *mapping, |
278 | struct writeback_control *wbc) | |
279 | { | |
4081363f | 280 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
50c8cdb3 | 281 | long diff, written; |
127e670a | 282 | |
0771fcc7 CY |
283 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
284 | goto skip_write; | |
285 | ||
5459aa97 | 286 | /* collect a number of dirty meta pages and write together */ |
50c8cdb3 JK |
287 | if (wbc->for_kupdate || |
288 | get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META)) | |
d3baf95d | 289 | goto skip_write; |
127e670a | 290 | |
a29d0e0b YH |
291 | /* if locked failed, cp will flush dirty pages instead */ |
292 | if (!mutex_trylock(&sbi->cp_mutex)) | |
293 | goto skip_write; | |
d31c7c3f | 294 | |
a29d0e0b | 295 | trace_f2fs_writepages(mapping->host, wbc, META); |
50c8cdb3 | 296 | diff = nr_pages_to_write(sbi, META, wbc); |
b0af6d49 | 297 | written = sync_meta_pages(sbi, META, wbc->nr_to_write, FS_META_IO); |
127e670a | 298 | mutex_unlock(&sbi->cp_mutex); |
50c8cdb3 | 299 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff); |
127e670a | 300 | return 0; |
d3baf95d JK |
301 | |
302 | skip_write: | |
303 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META); | |
d31c7c3f | 304 | trace_f2fs_writepages(mapping->host, wbc, META); |
d3baf95d | 305 | return 0; |
127e670a JK |
306 | } |
307 | ||
308 | long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, | |
b0af6d49 | 309 | long nr_to_write, enum iostat_type io_type) |
127e670a | 310 | { |
9df27d98 | 311 | struct address_space *mapping = META_MAPPING(sbi); |
028a63a6 | 312 | pgoff_t index = 0, prev = ULONG_MAX; |
127e670a JK |
313 | struct pagevec pvec; |
314 | long nwritten = 0; | |
028a63a6 | 315 | int nr_pages; |
127e670a JK |
316 | struct writeback_control wbc = { |
317 | .for_reclaim = 0, | |
318 | }; | |
e9f5b8b8 | 319 | struct blk_plug plug; |
127e670a | 320 | |
86679820 | 321 | pagevec_init(&pvec); |
127e670a | 322 | |
e9f5b8b8 CY |
323 | blk_start_plug(&plug); |
324 | ||
028a63a6 | 325 | while ((nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, |
67fd707f | 326 | PAGECACHE_TAG_DIRTY))) { |
028a63a6 | 327 | int i; |
127e670a JK |
328 | |
329 | for (i = 0; i < nr_pages; i++) { | |
330 | struct page *page = pvec.pages[i]; | |
203681f6 | 331 | |
80dd9c0e | 332 | if (prev == ULONG_MAX) |
6066d8cd JK |
333 | prev = page->index - 1; |
334 | if (nr_to_write != LONG_MAX && page->index != prev + 1) { | |
335 | pagevec_release(&pvec); | |
336 | goto stop; | |
337 | } | |
338 | ||
127e670a | 339 | lock_page(page); |
203681f6 JK |
340 | |
341 | if (unlikely(page->mapping != mapping)) { | |
342 | continue_unlock: | |
343 | unlock_page(page); | |
344 | continue; | |
345 | } | |
346 | if (!PageDirty(page)) { | |
347 | /* someone wrote it for us */ | |
348 | goto continue_unlock; | |
349 | } | |
350 | ||
fa3d2bdf JK |
351 | f2fs_wait_on_page_writeback(page, META, true); |
352 | ||
353 | BUG_ON(PageWriteback(page)); | |
203681f6 JK |
354 | if (!clear_page_dirty_for_io(page)) |
355 | goto continue_unlock; | |
356 | ||
b0af6d49 | 357 | if (__f2fs_write_meta_page(page, &wbc, io_type)) { |
577e3495 JK |
358 | unlock_page(page); |
359 | break; | |
360 | } | |
cfb271d4 | 361 | nwritten++; |
6066d8cd | 362 | prev = page->index; |
cfb271d4 | 363 | if (unlikely(nwritten >= nr_to_write)) |
127e670a JK |
364 | break; |
365 | } | |
366 | pagevec_release(&pvec); | |
367 | cond_resched(); | |
368 | } | |
6066d8cd | 369 | stop: |
127e670a | 370 | if (nwritten) |
b9109b0e | 371 | f2fs_submit_merged_write(sbi, type); |
127e670a | 372 | |
e9f5b8b8 CY |
373 | blk_finish_plug(&plug); |
374 | ||
127e670a JK |
375 | return nwritten; |
376 | } | |
377 | ||
378 | static int f2fs_set_meta_page_dirty(struct page *page) | |
379 | { | |
26c6b887 JK |
380 | trace_f2fs_set_page_dirty(page, META); |
381 | ||
237c0790 JK |
382 | if (!PageUptodate(page)) |
383 | SetPageUptodate(page); | |
127e670a | 384 | if (!PageDirty(page)) { |
b87078ad | 385 | __set_page_dirty_nobuffers(page); |
4081363f | 386 | inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_META); |
1601839e | 387 | SetPagePrivate(page); |
9e4ded3f | 388 | f2fs_trace_pid(page); |
127e670a JK |
389 | return 1; |
390 | } | |
391 | return 0; | |
392 | } | |
393 | ||
394 | const struct address_space_operations f2fs_meta_aops = { | |
395 | .writepage = f2fs_write_meta_page, | |
396 | .writepages = f2fs_write_meta_pages, | |
397 | .set_page_dirty = f2fs_set_meta_page_dirty, | |
487261f3 CY |
398 | .invalidatepage = f2fs_invalidate_page, |
399 | .releasepage = f2fs_release_page, | |
5b7a487c WG |
400 | #ifdef CONFIG_MIGRATION |
401 | .migratepage = f2fs_migrate_page, | |
402 | #endif | |
127e670a JK |
403 | }; |
404 | ||
39d787be CY |
405 | static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, |
406 | unsigned int devidx, int type) | |
953e6cc6 | 407 | { |
67298804 | 408 | struct inode_management *im = &sbi->im[type]; |
80c54505 JK |
409 | struct ino_entry *e, *tmp; |
410 | ||
411 | tmp = f2fs_kmem_cache_alloc(ino_entry_slab, GFP_NOFS); | |
19526d74 | 412 | |
80c54505 | 413 | radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); |
769ec6e5 | 414 | |
67298804 | 415 | spin_lock(&im->ino_lock); |
67298804 | 416 | e = radix_tree_lookup(&im->ino_root, ino); |
39efac41 | 417 | if (!e) { |
80c54505 | 418 | e = tmp; |
19526d74 CY |
419 | if (unlikely(radix_tree_insert(&im->ino_root, ino, e))) |
420 | f2fs_bug_on(sbi, 1); | |
421 | ||
39efac41 JK |
422 | memset(e, 0, sizeof(struct ino_entry)); |
423 | e->ino = ino; | |
953e6cc6 | 424 | |
67298804 | 425 | list_add_tail(&e->list, &im->ino_list); |
8c402946 | 426 | if (type != ORPHAN_INO) |
67298804 | 427 | im->ino_num++; |
39efac41 | 428 | } |
39d787be CY |
429 | |
430 | if (type == FLUSH_INO) | |
431 | f2fs_set_bit(devidx, (char *)&e->dirty_device); | |
432 | ||
67298804 | 433 | spin_unlock(&im->ino_lock); |
769ec6e5 | 434 | radix_tree_preload_end(); |
80c54505 JK |
435 | |
436 | if (e != tmp) | |
437 | kmem_cache_free(ino_entry_slab, tmp); | |
953e6cc6 JK |
438 | } |
439 | ||
6451e041 | 440 | static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
953e6cc6 | 441 | { |
67298804 | 442 | struct inode_management *im = &sbi->im[type]; |
6451e041 | 443 | struct ino_entry *e; |
953e6cc6 | 444 | |
67298804 CY |
445 | spin_lock(&im->ino_lock); |
446 | e = radix_tree_lookup(&im->ino_root, ino); | |
39efac41 JK |
447 | if (e) { |
448 | list_del(&e->list); | |
67298804 CY |
449 | radix_tree_delete(&im->ino_root, ino); |
450 | im->ino_num--; | |
451 | spin_unlock(&im->ino_lock); | |
39efac41 JK |
452 | kmem_cache_free(ino_entry_slab, e); |
453 | return; | |
953e6cc6 | 454 | } |
67298804 | 455 | spin_unlock(&im->ino_lock); |
953e6cc6 JK |
456 | } |
457 | ||
a49324f1 | 458 | void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
459 | { |
460 | /* add new dirty ino entry into list */ | |
39d787be | 461 | __add_ino_entry(sbi, ino, 0, type); |
fff04f90 JK |
462 | } |
463 | ||
a49324f1 | 464 | void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
465 | { |
466 | /* remove dirty ino entry from list */ | |
467 | __remove_ino_entry(sbi, ino, type); | |
468 | } | |
469 | ||
470 | /* mode should be APPEND_INO or UPDATE_INO */ | |
471 | bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode) | |
472 | { | |
67298804 | 473 | struct inode_management *im = &sbi->im[mode]; |
fff04f90 | 474 | struct ino_entry *e; |
67298804 CY |
475 | |
476 | spin_lock(&im->ino_lock); | |
477 | e = radix_tree_lookup(&im->ino_root, ino); | |
478 | spin_unlock(&im->ino_lock); | |
fff04f90 JK |
479 | return e ? true : false; |
480 | } | |
481 | ||
74ef9241 | 482 | void release_ino_entry(struct f2fs_sb_info *sbi, bool all) |
fff04f90 JK |
483 | { |
484 | struct ino_entry *e, *tmp; | |
485 | int i; | |
486 | ||
39d787be | 487 | for (i = all ? ORPHAN_INO : APPEND_INO; i < MAX_INO_ENTRY; i++) { |
67298804 CY |
488 | struct inode_management *im = &sbi->im[i]; |
489 | ||
490 | spin_lock(&im->ino_lock); | |
491 | list_for_each_entry_safe(e, tmp, &im->ino_list, list) { | |
fff04f90 | 492 | list_del(&e->list); |
67298804 | 493 | radix_tree_delete(&im->ino_root, e->ino); |
fff04f90 | 494 | kmem_cache_free(ino_entry_slab, e); |
67298804 | 495 | im->ino_num--; |
fff04f90 | 496 | } |
67298804 | 497 | spin_unlock(&im->ino_lock); |
fff04f90 JK |
498 | } |
499 | } | |
500 | ||
39d787be CY |
501 | void set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
502 | unsigned int devidx, int type) | |
503 | { | |
504 | __add_ino_entry(sbi, ino, devidx, type); | |
505 | } | |
506 | ||
507 | bool is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, | |
508 | unsigned int devidx, int type) | |
509 | { | |
510 | struct inode_management *im = &sbi->im[type]; | |
511 | struct ino_entry *e; | |
512 | bool is_dirty = false; | |
513 | ||
514 | spin_lock(&im->ino_lock); | |
515 | e = radix_tree_lookup(&im->ino_root, ino); | |
516 | if (e && f2fs_test_bit(devidx, (char *)&e->dirty_device)) | |
517 | is_dirty = true; | |
518 | spin_unlock(&im->ino_lock); | |
519 | return is_dirty; | |
520 | } | |
521 | ||
cbd56e7d | 522 | int acquire_orphan_inode(struct f2fs_sb_info *sbi) |
127e670a | 523 | { |
67298804 | 524 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a JK |
525 | int err = 0; |
526 | ||
67298804 | 527 | spin_lock(&im->ino_lock); |
cb78942b JK |
528 | |
529 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1ecc0c5c | 530 | if (time_to_inject(sbi, FAULT_ORPHAN)) { |
cb78942b | 531 | spin_unlock(&im->ino_lock); |
55523519 | 532 | f2fs_show_injection_info(FAULT_ORPHAN); |
cb78942b JK |
533 | return -ENOSPC; |
534 | } | |
535 | #endif | |
67298804 | 536 | if (unlikely(im->ino_num >= sbi->max_orphans)) |
127e670a | 537 | err = -ENOSPC; |
cbd56e7d | 538 | else |
67298804 CY |
539 | im->ino_num++; |
540 | spin_unlock(&im->ino_lock); | |
0d47c1ad | 541 | |
127e670a JK |
542 | return err; |
543 | } | |
544 | ||
cbd56e7d JK |
545 | void release_orphan_inode(struct f2fs_sb_info *sbi) |
546 | { | |
67298804 CY |
547 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
548 | ||
549 | spin_lock(&im->ino_lock); | |
550 | f2fs_bug_on(sbi, im->ino_num == 0); | |
551 | im->ino_num--; | |
552 | spin_unlock(&im->ino_lock); | |
cbd56e7d JK |
553 | } |
554 | ||
67c3758d | 555 | void add_orphan_inode(struct inode *inode) |
127e670a | 556 | { |
39efac41 | 557 | /* add new orphan ino entry into list */ |
39d787be | 558 | __add_ino_entry(F2FS_I_SB(inode), inode->i_ino, 0, ORPHAN_INO); |
67c3758d | 559 | update_inode_page(inode); |
127e670a JK |
560 | } |
561 | ||
562 | void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) | |
563 | { | |
953e6cc6 | 564 | /* remove orphan entry from orphan list */ |
6451e041 | 565 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
127e670a JK |
566 | } |
567 | ||
8c14bfad | 568 | static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 569 | { |
8c14bfad | 570 | struct inode *inode; |
5905f9af | 571 | struct node_info ni; |
d41065e2 JK |
572 | int err = acquire_orphan_inode(sbi); |
573 | ||
0f9ec2a8 JK |
574 | if (err) |
575 | goto err_out; | |
d41065e2 | 576 | |
39d787be | 577 | __add_ino_entry(sbi, ino, 0, ORPHAN_INO); |
8c14bfad | 578 | |
5905f9af | 579 | inode = f2fs_iget_retry(sbi->sb, ino); |
8c14bfad CY |
580 | if (IS_ERR(inode)) { |
581 | /* | |
582 | * there should be a bug that we can't find the entry | |
583 | * to orphan inode. | |
584 | */ | |
585 | f2fs_bug_on(sbi, PTR_ERR(inode) == -ENOENT); | |
586 | return PTR_ERR(inode); | |
587 | } | |
588 | ||
0f9ec2a8 JK |
589 | err = dquot_initialize(inode); |
590 | if (err) | |
591 | goto err_out; | |
592 | ||
593 | dquot_initialize(inode); | |
127e670a JK |
594 | clear_nlink(inode); |
595 | ||
596 | /* truncate all the data during iput */ | |
597 | iput(inode); | |
5905f9af JK |
598 | |
599 | get_node_info(sbi, ino, &ni); | |
600 | ||
601 | /* ENOMEM was fully retried in f2fs_evict_inode. */ | |
602 | if (ni.blk_addr != NULL_ADDR) { | |
0f9ec2a8 JK |
603 | err = -EIO; |
604 | goto err_out; | |
5905f9af | 605 | } |
d41065e2 | 606 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
8c14bfad | 607 | return 0; |
0f9ec2a8 JK |
608 | |
609 | err_out: | |
610 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
611 | f2fs_msg(sbi->sb, KERN_WARNING, | |
612 | "%s: orphan failed (ino=%x), run fsck to fix.", | |
613 | __func__, ino); | |
614 | return err; | |
127e670a JK |
615 | } |
616 | ||
8c14bfad | 617 | int recover_orphan_inodes(struct f2fs_sb_info *sbi) |
127e670a | 618 | { |
3c642985 | 619 | block_t start_blk, orphan_blocks, i, j; |
4b2414d0 CY |
620 | unsigned int s_flags = sbi->sb->s_flags; |
621 | int err = 0; | |
ea676733 JK |
622 | #ifdef CONFIG_QUOTA |
623 | int quota_enabled; | |
624 | #endif | |
127e670a | 625 | |
aaec2b1d | 626 | if (!is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG)) |
8c14bfad | 627 | return 0; |
127e670a | 628 | |
1751e8a6 | 629 | if (s_flags & SB_RDONLY) { |
4b2414d0 | 630 | f2fs_msg(sbi->sb, KERN_INFO, "orphan cleanup on readonly fs"); |
1751e8a6 | 631 | sbi->sb->s_flags &= ~SB_RDONLY; |
4b2414d0 CY |
632 | } |
633 | ||
634 | #ifdef CONFIG_QUOTA | |
635 | /* Needed for iput() to work correctly and not trash data */ | |
1751e8a6 | 636 | sbi->sb->s_flags |= SB_ACTIVE; |
ea676733 | 637 | |
4b2414d0 | 638 | /* Turn on quotas so that they are updated correctly */ |
1751e8a6 | 639 | quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY); |
4b2414d0 CY |
640 | #endif |
641 | ||
55141486 | 642 | start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi); |
3c642985 | 643 | orphan_blocks = __start_sum_addr(sbi) - 1 - __cp_payload(sbi); |
127e670a | 644 | |
26879fb1 | 645 | ra_meta_pages(sbi, start_blk, orphan_blocks, META_CP, true); |
662befda | 646 | |
3c642985 | 647 | for (i = 0; i < orphan_blocks; i++) { |
127e670a JK |
648 | struct page *page = get_meta_page(sbi, start_blk + i); |
649 | struct f2fs_orphan_block *orphan_blk; | |
650 | ||
651 | orphan_blk = (struct f2fs_orphan_block *)page_address(page); | |
652 | for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) { | |
653 | nid_t ino = le32_to_cpu(orphan_blk->ino[j]); | |
8c14bfad CY |
654 | err = recover_orphan_inode(sbi, ino); |
655 | if (err) { | |
656 | f2fs_put_page(page, 1); | |
4b2414d0 | 657 | goto out; |
8c14bfad | 658 | } |
127e670a JK |
659 | } |
660 | f2fs_put_page(page, 1); | |
661 | } | |
662 | /* clear Orphan Flag */ | |
aaec2b1d | 663 | clear_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG); |
4b2414d0 CY |
664 | out: |
665 | #ifdef CONFIG_QUOTA | |
666 | /* Turn quotas off */ | |
ea676733 JK |
667 | if (quota_enabled) |
668 | f2fs_quota_off_umount(sbi->sb); | |
4b2414d0 | 669 | #endif |
1751e8a6 | 670 | sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */ |
4b2414d0 CY |
671 | |
672 | return err; | |
127e670a JK |
673 | } |
674 | ||
675 | static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk) | |
676 | { | |
502c6e0b | 677 | struct list_head *head; |
127e670a | 678 | struct f2fs_orphan_block *orphan_blk = NULL; |
127e670a | 679 | unsigned int nentries = 0; |
bd936f84 | 680 | unsigned short index = 1; |
8c402946 | 681 | unsigned short orphan_blocks; |
4531929e | 682 | struct page *page = NULL; |
6451e041 | 683 | struct ino_entry *orphan = NULL; |
67298804 | 684 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a | 685 | |
67298804 | 686 | orphan_blocks = GET_ORPHAN_BLOCKS(im->ino_num); |
8c402946 | 687 | |
d6c67a4f JK |
688 | /* |
689 | * we don't need to do spin_lock(&im->ino_lock) here, since all the | |
690 | * orphan inode operations are covered under f2fs_lock_op(). | |
691 | * And, spin_lock should be avoided due to page operations below. | |
692 | */ | |
67298804 | 693 | head = &im->ino_list; |
127e670a JK |
694 | |
695 | /* loop for each orphan inode entry and write them in Jornal block */ | |
502c6e0b GZ |
696 | list_for_each_entry(orphan, head, list) { |
697 | if (!page) { | |
bd936f84 | 698 | page = grab_meta_page(sbi, start_blk++); |
502c6e0b GZ |
699 | orphan_blk = |
700 | (struct f2fs_orphan_block *)page_address(page); | |
701 | memset(orphan_blk, 0, sizeof(*orphan_blk)); | |
702 | } | |
127e670a | 703 | |
36795567 | 704 | orphan_blk->ino[nentries++] = cpu_to_le32(orphan->ino); |
127e670a | 705 | |
36795567 | 706 | if (nentries == F2FS_ORPHANS_PER_BLOCK) { |
127e670a JK |
707 | /* |
708 | * an orphan block is full of 1020 entries, | |
709 | * then we need to flush current orphan blocks | |
710 | * and bring another one in memory | |
711 | */ | |
712 | orphan_blk->blk_addr = cpu_to_le16(index); | |
713 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
714 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
715 | set_page_dirty(page); | |
716 | f2fs_put_page(page, 1); | |
717 | index++; | |
127e670a JK |
718 | nentries = 0; |
719 | page = NULL; | |
720 | } | |
502c6e0b | 721 | } |
127e670a | 722 | |
502c6e0b GZ |
723 | if (page) { |
724 | orphan_blk->blk_addr = cpu_to_le16(index); | |
725 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
726 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
727 | set_page_dirty(page); | |
728 | f2fs_put_page(page, 1); | |
127e670a | 729 | } |
127e670a JK |
730 | } |
731 | ||
fc0065ad TY |
732 | static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr, |
733 | struct f2fs_checkpoint **cp_block, struct page **cp_page, | |
734 | unsigned long long *version) | |
127e670a | 735 | { |
127e670a | 736 | unsigned long blk_size = sbi->blocksize; |
fc0065ad | 737 | size_t crc_offset = 0; |
7e586fa0 | 738 | __u32 crc = 0; |
127e670a | 739 | |
fc0065ad TY |
740 | *cp_page = get_meta_page(sbi, cp_addr); |
741 | *cp_block = (struct f2fs_checkpoint *)page_address(*cp_page); | |
127e670a | 742 | |
fc0065ad | 743 | crc_offset = le32_to_cpu((*cp_block)->checksum_offset); |
c6f89dfd | 744 | if (crc_offset > (blk_size - sizeof(__le32))) { |
fc0065ad TY |
745 | f2fs_msg(sbi->sb, KERN_WARNING, |
746 | "invalid crc_offset: %zu", crc_offset); | |
747 | return -EINVAL; | |
748 | } | |
127e670a | 749 | |
ced2c7ea | 750 | crc = cur_cp_crc(*cp_block); |
fc0065ad TY |
751 | if (!f2fs_crc_valid(sbi, crc, *cp_block, crc_offset)) { |
752 | f2fs_msg(sbi->sb, KERN_WARNING, "invalid crc value"); | |
753 | return -EINVAL; | |
754 | } | |
127e670a | 755 | |
fc0065ad TY |
756 | *version = cur_cp_version(*cp_block); |
757 | return 0; | |
758 | } | |
127e670a | 759 | |
fc0065ad TY |
760 | static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, |
761 | block_t cp_addr, unsigned long long *version) | |
762 | { | |
763 | struct page *cp_page_1 = NULL, *cp_page_2 = NULL; | |
764 | struct f2fs_checkpoint *cp_block = NULL; | |
765 | unsigned long long cur_version = 0, pre_version = 0; | |
766 | int err; | |
127e670a | 767 | |
fc0065ad TY |
768 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
769 | &cp_page_1, version); | |
770 | if (err) | |
771 | goto invalid_cp1; | |
772 | pre_version = *version; | |
127e670a | 773 | |
fc0065ad TY |
774 | cp_addr += le32_to_cpu(cp_block->cp_pack_total_block_count) - 1; |
775 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, | |
776 | &cp_page_2, version); | |
777 | if (err) | |
127e670a | 778 | goto invalid_cp2; |
fc0065ad | 779 | cur_version = *version; |
127e670a JK |
780 | |
781 | if (cur_version == pre_version) { | |
782 | *version = cur_version; | |
783 | f2fs_put_page(cp_page_2, 1); | |
784 | return cp_page_1; | |
785 | } | |
786 | invalid_cp2: | |
787 | f2fs_put_page(cp_page_2, 1); | |
788 | invalid_cp1: | |
789 | f2fs_put_page(cp_page_1, 1); | |
790 | return NULL; | |
791 | } | |
792 | ||
793 | int get_valid_checkpoint(struct f2fs_sb_info *sbi) | |
794 | { | |
795 | struct f2fs_checkpoint *cp_block; | |
796 | struct f2fs_super_block *fsb = sbi->raw_super; | |
797 | struct page *cp1, *cp2, *cur_page; | |
798 | unsigned long blk_size = sbi->blocksize; | |
799 | unsigned long long cp1_version = 0, cp2_version = 0; | |
800 | unsigned long long cp_start_blk_no; | |
55141486 | 801 | unsigned int cp_blks = 1 + __cp_payload(sbi); |
1dbe4152 CL |
802 | block_t cp_blk_no; |
803 | int i; | |
127e670a | 804 | |
acbf054d | 805 | sbi->ckpt = f2fs_kzalloc(sbi, cp_blks * blk_size, GFP_KERNEL); |
127e670a JK |
806 | if (!sbi->ckpt) |
807 | return -ENOMEM; | |
808 | /* | |
809 | * Finding out valid cp block involves read both | |
810 | * sets( cp pack1 and cp pack 2) | |
811 | */ | |
812 | cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
813 | cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version); | |
814 | ||
815 | /* The second checkpoint pack should start at the next segment */ | |
f9a4e6df JK |
816 | cp_start_blk_no += ((unsigned long long)1) << |
817 | le32_to_cpu(fsb->log_blocks_per_seg); | |
127e670a JK |
818 | cp2 = validate_checkpoint(sbi, cp_start_blk_no, &cp2_version); |
819 | ||
820 | if (cp1 && cp2) { | |
821 | if (ver_after(cp2_version, cp1_version)) | |
822 | cur_page = cp2; | |
823 | else | |
824 | cur_page = cp1; | |
825 | } else if (cp1) { | |
826 | cur_page = cp1; | |
827 | } else if (cp2) { | |
828 | cur_page = cp2; | |
829 | } else { | |
830 | goto fail_no_cp; | |
831 | } | |
832 | ||
833 | cp_block = (struct f2fs_checkpoint *)page_address(cur_page); | |
834 | memcpy(sbi->ckpt, cp_block, blk_size); | |
835 | ||
984ec63c SL |
836 | /* Sanity checking of checkpoint */ |
837 | if (sanity_check_ckpt(sbi)) | |
a2125ff7 | 838 | goto free_fail_no_cp; |
984ec63c | 839 | |
8508e44a JK |
840 | if (cur_page == cp1) |
841 | sbi->cur_cp_pack = 1; | |
842 | else | |
843 | sbi->cur_cp_pack = 2; | |
984ec63c | 844 | |
1dbe4152 CL |
845 | if (cp_blks <= 1) |
846 | goto done; | |
847 | ||
848 | cp_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
849 | if (cur_page == cp2) | |
850 | cp_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg); | |
851 | ||
852 | for (i = 1; i < cp_blks; i++) { | |
853 | void *sit_bitmap_ptr; | |
854 | unsigned char *ckpt = (unsigned char *)sbi->ckpt; | |
855 | ||
856 | cur_page = get_meta_page(sbi, cp_blk_no + i); | |
857 | sit_bitmap_ptr = page_address(cur_page); | |
858 | memcpy(ckpt + i * blk_size, sit_bitmap_ptr, blk_size); | |
859 | f2fs_put_page(cur_page, 1); | |
860 | } | |
861 | done: | |
127e670a JK |
862 | f2fs_put_page(cp1, 1); |
863 | f2fs_put_page(cp2, 1); | |
864 | return 0; | |
865 | ||
a2125ff7 JK |
866 | free_fail_no_cp: |
867 | f2fs_put_page(cp1, 1); | |
868 | f2fs_put_page(cp2, 1); | |
127e670a JK |
869 | fail_no_cp: |
870 | kfree(sbi->ckpt); | |
871 | return -EINVAL; | |
872 | } | |
873 | ||
c227f912 | 874 | static void __add_dirty_inode(struct inode *inode, enum inode_type type) |
127e670a | 875 | { |
4081363f | 876 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 877 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
127e670a | 878 | |
91942321 | 879 | if (is_inode_flag_set(inode, flag)) |
2710fd7e | 880 | return; |
2d7b822a | 881 | |
91942321 | 882 | set_inode_flag(inode, flag); |
99f4b917 CY |
883 | if (!f2fs_is_volatile_file(inode)) |
884 | list_add_tail(&F2FS_I(inode)->dirty_list, | |
885 | &sbi->inode_list[type]); | |
33fbd510 | 886 | stat_inc_dirty_inode(sbi, type); |
5deb8267 JK |
887 | } |
888 | ||
c227f912 | 889 | static void __remove_dirty_inode(struct inode *inode, enum inode_type type) |
6ad7609a | 890 | { |
c227f912 | 891 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
6ad7609a | 892 | |
91942321 | 893 | if (get_dirty_pages(inode) || !is_inode_flag_set(inode, flag)) |
6ad7609a CY |
894 | return; |
895 | ||
91942321 JK |
896 | list_del_init(&F2FS_I(inode)->dirty_list); |
897 | clear_inode_flag(inode, flag); | |
33fbd510 | 898 | stat_dec_dirty_inode(F2FS_I_SB(inode), type); |
6ad7609a CY |
899 | } |
900 | ||
a7ffdbe2 | 901 | void update_dirty_page(struct inode *inode, struct page *page) |
5deb8267 | 902 | { |
4081363f | 903 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 904 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
5deb8267 | 905 | |
5ac9f36f CY |
906 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
907 | !S_ISLNK(inode->i_mode)) | |
127e670a | 908 | return; |
7bd59381 | 909 | |
1c4bf763 JK |
910 | spin_lock(&sbi->inode_lock[type]); |
911 | if (type != FILE_INODE || test_opt(sbi, DATA_FLUSH)) | |
10aa97c3 | 912 | __add_dirty_inode(inode, type); |
b951a4ec | 913 | inode_inc_dirty_pages(inode); |
1c4bf763 JK |
914 | spin_unlock(&sbi->inode_lock[type]); |
915 | ||
a7ffdbe2 | 916 | SetPagePrivate(page); |
9e4ded3f | 917 | f2fs_trace_pid(page); |
5deb8267 JK |
918 | } |
919 | ||
c227f912 | 920 | void remove_dirty_inode(struct inode *inode) |
127e670a | 921 | { |
4081363f | 922 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 923 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
127e670a | 924 | |
c227f912 CY |
925 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
926 | !S_ISLNK(inode->i_mode)) | |
127e670a JK |
927 | return; |
928 | ||
10aa97c3 JK |
929 | if (type == FILE_INODE && !test_opt(sbi, DATA_FLUSH)) |
930 | return; | |
931 | ||
c227f912 CY |
932 | spin_lock(&sbi->inode_lock[type]); |
933 | __remove_dirty_inode(inode, type); | |
934 | spin_unlock(&sbi->inode_lock[type]); | |
74d0b917 JK |
935 | } |
936 | ||
6d5a1495 | 937 | int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type) |
127e670a | 938 | { |
ce3b7d80 | 939 | struct list_head *head; |
127e670a | 940 | struct inode *inode; |
2710fd7e | 941 | struct f2fs_inode_info *fi; |
4cf18537 | 942 | bool is_dir = (type == DIR_INODE); |
4db08d01 | 943 | unsigned long ino = 0; |
4cf18537 CY |
944 | |
945 | trace_f2fs_sync_dirty_inodes_enter(sbi->sb, is_dir, | |
946 | get_pages(sbi, is_dir ? | |
947 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
127e670a | 948 | retry: |
af41d3ee | 949 | if (unlikely(f2fs_cp_error(sbi))) |
6d5a1495 | 950 | return -EIO; |
af41d3ee | 951 | |
c227f912 | 952 | spin_lock(&sbi->inode_lock[type]); |
ce3b7d80 | 953 | |
c227f912 | 954 | head = &sbi->inode_list[type]; |
127e670a | 955 | if (list_empty(head)) { |
c227f912 | 956 | spin_unlock(&sbi->inode_lock[type]); |
4cf18537 CY |
957 | trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir, |
958 | get_pages(sbi, is_dir ? | |
959 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
6d5a1495 | 960 | return 0; |
127e670a | 961 | } |
939afa94 | 962 | fi = list_first_entry(head, struct f2fs_inode_info, dirty_list); |
2710fd7e | 963 | inode = igrab(&fi->vfs_inode); |
c227f912 | 964 | spin_unlock(&sbi->inode_lock[type]); |
127e670a | 965 | if (inode) { |
4db08d01 JK |
966 | unsigned long cur_ino = inode->i_ino; |
967 | ||
b0af6d49 CY |
968 | if (is_dir) |
969 | F2FS_I(inode)->cp_task = current; | |
970 | ||
87d6f890 | 971 | filemap_fdatawrite(inode->i_mapping); |
b0af6d49 CY |
972 | |
973 | if (is_dir) | |
974 | F2FS_I(inode)->cp_task = NULL; | |
975 | ||
127e670a | 976 | iput(inode); |
4db08d01 JK |
977 | /* We need to give cpu to another writers. */ |
978 | if (ino == cur_ino) { | |
979 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
980 | cond_resched(); | |
981 | } else { | |
982 | ino = cur_ino; | |
983 | } | |
127e670a JK |
984 | } else { |
985 | /* | |
986 | * We should submit bio, since it exists several | |
987 | * wribacking dentry pages in the freeing inode. | |
988 | */ | |
b9109b0e | 989 | f2fs_submit_merged_write(sbi, DATA); |
7ecebe5e | 990 | cond_resched(); |
127e670a JK |
991 | } |
992 | goto retry; | |
993 | } | |
994 | ||
0f18b462 JK |
995 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi) |
996 | { | |
997 | struct list_head *head = &sbi->inode_list[DIRTY_META]; | |
998 | struct inode *inode; | |
999 | struct f2fs_inode_info *fi; | |
1000 | s64 total = get_pages(sbi, F2FS_DIRTY_IMETA); | |
1001 | ||
1002 | while (total--) { | |
1003 | if (unlikely(f2fs_cp_error(sbi))) | |
1004 | return -EIO; | |
1005 | ||
1006 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
1007 | if (list_empty(head)) { | |
1008 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1009 | return 0; | |
1010 | } | |
939afa94 | 1011 | fi = list_first_entry(head, struct f2fs_inode_info, |
0f18b462 JK |
1012 | gdirty_list); |
1013 | inode = igrab(&fi->vfs_inode); | |
1014 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1015 | if (inode) { | |
18340edc JK |
1016 | sync_inode_metadata(inode, 0); |
1017 | ||
1018 | /* it's on eviction */ | |
1019 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) | |
1020 | update_inode_page(inode); | |
0f18b462 JK |
1021 | iput(inode); |
1022 | } | |
dee668c1 | 1023 | } |
0f18b462 JK |
1024 | return 0; |
1025 | } | |
1026 | ||
59c9081b YH |
1027 | static void __prepare_cp_block(struct f2fs_sb_info *sbi) |
1028 | { | |
1029 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1030 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
1031 | nid_t last_nid = nm_i->next_scan_nid; | |
1032 | ||
1033 | next_free_nid(sbi, &last_nid); | |
1034 | ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi)); | |
1035 | ckpt->valid_node_count = cpu_to_le32(valid_node_count(sbi)); | |
1036 | ckpt->valid_inode_count = cpu_to_le32(valid_inode_count(sbi)); | |
1037 | ckpt->next_free_nid = cpu_to_le32(last_nid); | |
1038 | } | |
1039 | ||
0a8165d7 | 1040 | /* |
127e670a JK |
1041 | * Freeze all the FS-operations for checkpoint. |
1042 | */ | |
cf779cab | 1043 | static int block_operations(struct f2fs_sb_info *sbi) |
127e670a | 1044 | { |
127e670a JK |
1045 | struct writeback_control wbc = { |
1046 | .sync_mode = WB_SYNC_ALL, | |
1047 | .nr_to_write = LONG_MAX, | |
1048 | .for_reclaim = 0, | |
1049 | }; | |
c718379b | 1050 | struct blk_plug plug; |
cf779cab | 1051 | int err = 0; |
c718379b JK |
1052 | |
1053 | blk_start_plug(&plug); | |
1054 | ||
39936837 | 1055 | retry_flush_dents: |
e479556b | 1056 | f2fs_lock_all(sbi); |
127e670a | 1057 | /* write all the dirty dentry pages */ |
127e670a | 1058 | if (get_pages(sbi, F2FS_DIRTY_DENTS)) { |
e479556b | 1059 | f2fs_unlock_all(sbi); |
6d5a1495 CY |
1060 | err = sync_dirty_inodes(sbi, DIR_INODE); |
1061 | if (err) | |
cf779cab | 1062 | goto out; |
30973883 | 1063 | cond_resched(); |
39936837 | 1064 | goto retry_flush_dents; |
127e670a JK |
1065 | } |
1066 | ||
59c9081b YH |
1067 | /* |
1068 | * POR: we should ensure that there are no dirty node pages | |
1069 | * until finishing nat/sit flush. inode->i_blocks can be updated. | |
1070 | */ | |
1071 | down_write(&sbi->node_change); | |
1072 | ||
0f18b462 | 1073 | if (get_pages(sbi, F2FS_DIRTY_IMETA)) { |
59c9081b | 1074 | up_write(&sbi->node_change); |
0f18b462 JK |
1075 | f2fs_unlock_all(sbi); |
1076 | err = f2fs_sync_inode_meta(sbi); | |
1077 | if (err) | |
1078 | goto out; | |
30973883 | 1079 | cond_resched(); |
0f18b462 JK |
1080 | goto retry_flush_dents; |
1081 | } | |
1082 | ||
39936837 | 1083 | retry_flush_nodes: |
b3582c68 | 1084 | down_write(&sbi->node_write); |
127e670a JK |
1085 | |
1086 | if (get_pages(sbi, F2FS_DIRTY_NODES)) { | |
b3582c68 | 1087 | up_write(&sbi->node_write); |
b0af6d49 | 1088 | err = sync_node_pages(sbi, &wbc, false, FS_CP_NODE_IO); |
6d5a1495 | 1089 | if (err) { |
59c9081b | 1090 | up_write(&sbi->node_change); |
cf779cab | 1091 | f2fs_unlock_all(sbi); |
cf779cab JK |
1092 | goto out; |
1093 | } | |
30973883 | 1094 | cond_resched(); |
39936837 | 1095 | goto retry_flush_nodes; |
127e670a | 1096 | } |
59c9081b YH |
1097 | |
1098 | /* | |
1099 | * sbi->node_change is used only for AIO write_begin path which produces | |
1100 | * dirty node blocks and some checkpoint values by block allocation. | |
1101 | */ | |
1102 | __prepare_cp_block(sbi); | |
1103 | up_write(&sbi->node_change); | |
cf779cab | 1104 | out: |
c718379b | 1105 | blk_finish_plug(&plug); |
cf779cab | 1106 | return err; |
127e670a JK |
1107 | } |
1108 | ||
1109 | static void unblock_operations(struct f2fs_sb_info *sbi) | |
1110 | { | |
b3582c68 | 1111 | up_write(&sbi->node_write); |
e479556b | 1112 | f2fs_unlock_all(sbi); |
127e670a JK |
1113 | } |
1114 | ||
fb51b5ef CL |
1115 | static void wait_on_all_pages_writeback(struct f2fs_sb_info *sbi) |
1116 | { | |
1117 | DEFINE_WAIT(wait); | |
1118 | ||
1119 | for (;;) { | |
1120 | prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE); | |
1121 | ||
36951b38 | 1122 | if (!get_pages(sbi, F2FS_WB_CP_DATA)) |
fb51b5ef CL |
1123 | break; |
1124 | ||
0ff21646 | 1125 | io_schedule_timeout(5*HZ); |
fb51b5ef CL |
1126 | } |
1127 | finish_wait(&sbi->cp_wait, &wait); | |
1128 | } | |
1129 | ||
e4c5d848 JK |
1130 | static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
1131 | { | |
1132 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num; | |
1133 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d1aa2453 | 1134 | unsigned long flags; |
e4c5d848 | 1135 | |
d1aa2453 | 1136 | spin_lock_irqsave(&sbi->cp_lock, flags); |
e4c5d848 | 1137 | |
c473f1a9 | 1138 | if ((cpc->reason & CP_UMOUNT) && |
10047f53 | 1139 | le32_to_cpu(ckpt->cp_pack_total_block_count) > |
22ad0b6a JK |
1140 | sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) |
1141 | disable_nat_bits(sbi, false); | |
1142 | ||
1f43e2ad CY |
1143 | if (cpc->reason & CP_TRIMMED) |
1144 | __set_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
cd36d7a1 CY |
1145 | else |
1146 | __clear_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
1f43e2ad | 1147 | |
c473f1a9 | 1148 | if (cpc->reason & CP_UMOUNT) |
e4c5d848 JK |
1149 | __set_ckpt_flags(ckpt, CP_UMOUNT_FLAG); |
1150 | else | |
1151 | __clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG); | |
1152 | ||
c473f1a9 | 1153 | if (cpc->reason & CP_FASTBOOT) |
e4c5d848 JK |
1154 | __set_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); |
1155 | else | |
1156 | __clear_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); | |
1157 | ||
1158 | if (orphan_num) | |
1159 | __set_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1160 | else | |
1161 | __clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1162 | ||
1163 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) | |
1164 | __set_ckpt_flags(ckpt, CP_FSCK_FLAG); | |
1165 | ||
1166 | /* set this flag to activate crc|cp_ver for recovery */ | |
1167 | __set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG); | |
f2367923 | 1168 | __clear_ckpt_flags(ckpt, CP_NOCRC_RECOVERY_FLAG); |
e4c5d848 | 1169 | |
d1aa2453 | 1170 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
e4c5d848 JK |
1171 | } |
1172 | ||
46706d59 GX |
1173 | static void commit_checkpoint(struct f2fs_sb_info *sbi, |
1174 | void *src, block_t blk_addr) | |
1175 | { | |
1176 | struct writeback_control wbc = { | |
1177 | .for_reclaim = 0, | |
1178 | }; | |
1179 | ||
1180 | /* | |
1181 | * pagevec_lookup_tag and lock_page again will take | |
1182 | * some extra time. Therefore, update_meta_pages and | |
1183 | * sync_meta_pages are combined in this function. | |
1184 | */ | |
1185 | struct page *page = grab_meta_page(sbi, blk_addr); | |
1186 | int err; | |
1187 | ||
1188 | memcpy(page_address(page), src, PAGE_SIZE); | |
1189 | set_page_dirty(page); | |
1190 | ||
1191 | f2fs_wait_on_page_writeback(page, META, true); | |
1192 | f2fs_bug_on(sbi, PageWriteback(page)); | |
1193 | if (unlikely(!clear_page_dirty_for_io(page))) | |
1194 | f2fs_bug_on(sbi, 1); | |
1195 | ||
1196 | /* writeout cp pack 2 page */ | |
1197 | err = __f2fs_write_meta_page(page, &wbc, FS_CP_META_IO); | |
1198 | f2fs_bug_on(sbi, err); | |
1199 | ||
1200 | f2fs_put_page(page, 0); | |
1201 | ||
1202 | /* submit checkpoint (with barrier if NOBARRIER is not set) */ | |
1203 | f2fs_submit_merged_write(sbi, META_FLUSH); | |
1204 | } | |
1205 | ||
c34f42e2 | 1206 | static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1207 | { |
1208 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
77041823 | 1209 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
d1aa2453 | 1210 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num, flags; |
127e670a | 1211 | block_t start_blk; |
127e670a | 1212 | unsigned int data_sum_blocks, orphan_blocks; |
7e586fa0 | 1213 | __u32 crc32 = 0; |
127e670a | 1214 | int i; |
55141486 | 1215 | int cp_payload_blks = __cp_payload(sbi); |
8f1dbbbb SL |
1216 | struct super_block *sb = sbi->sb; |
1217 | struct curseg_info *seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
1218 | u64 kbytes_written; | |
1228b482 | 1219 | int err; |
127e670a JK |
1220 | |
1221 | /* Flush all the NAT/SIT pages */ | |
cf779cab | 1222 | while (get_pages(sbi, F2FS_DIRTY_META)) { |
b0af6d49 | 1223 | sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
cf779cab | 1224 | if (unlikely(f2fs_cp_error(sbi))) |
c34f42e2 | 1225 | return -EIO; |
cf779cab | 1226 | } |
127e670a | 1227 | |
127e670a JK |
1228 | /* |
1229 | * modify checkpoint | |
1230 | * version number is already updated | |
1231 | */ | |
1232 | ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi)); | |
127e670a | 1233 | ckpt->free_segment_count = cpu_to_le32(free_segments(sbi)); |
b5b82205 | 1234 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
127e670a JK |
1235 | ckpt->cur_node_segno[i] = |
1236 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE)); | |
1237 | ckpt->cur_node_blkoff[i] = | |
1238 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_NODE)); | |
1239 | ckpt->alloc_type[i + CURSEG_HOT_NODE] = | |
1240 | curseg_alloc_type(sbi, i + CURSEG_HOT_NODE); | |
1241 | } | |
b5b82205 | 1242 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { |
127e670a JK |
1243 | ckpt->cur_data_segno[i] = |
1244 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA)); | |
1245 | ckpt->cur_data_blkoff[i] = | |
1246 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_DATA)); | |
1247 | ckpt->alloc_type[i + CURSEG_HOT_DATA] = | |
1248 | curseg_alloc_type(sbi, i + CURSEG_HOT_DATA); | |
1249 | } | |
1250 | ||
127e670a | 1251 | /* 2 cp + n data seg summary + orphan inode blocks */ |
3fa06d7b | 1252 | data_sum_blocks = npages_for_summary_flush(sbi, false); |
d1aa2453 | 1253 | spin_lock_irqsave(&sbi->cp_lock, flags); |
b5b82205 | 1254 | if (data_sum_blocks < NR_CURSEG_DATA_TYPE) |
aaec2b1d | 1255 | __set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
127e670a | 1256 | else |
aaec2b1d | 1257 | __clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
d1aa2453 | 1258 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
127e670a | 1259 | |
67298804 | 1260 | orphan_blocks = GET_ORPHAN_BLOCKS(orphan_num); |
1dbe4152 CL |
1261 | ckpt->cp_pack_start_sum = cpu_to_le32(1 + cp_payload_blks + |
1262 | orphan_blocks); | |
127e670a | 1263 | |
119ee914 | 1264 | if (__remain_node_summaries(cpc->reason)) |
b5b82205 | 1265 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS+ |
1dbe4152 CL |
1266 | cp_payload_blks + data_sum_blocks + |
1267 | orphan_blocks + NR_CURSEG_NODE_TYPE); | |
119ee914 | 1268 | else |
b5b82205 | 1269 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
1dbe4152 CL |
1270 | cp_payload_blks + data_sum_blocks + |
1271 | orphan_blocks); | |
119ee914 | 1272 | |
e4c5d848 JK |
1273 | /* update ckpt flag for checkpoint */ |
1274 | update_ckpt_flags(sbi, cpc); | |
a468f0ef | 1275 | |
127e670a JK |
1276 | /* update SIT/NAT bitmap */ |
1277 | get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP)); | |
1278 | get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP)); | |
1279 | ||
43b6573b | 1280 | crc32 = f2fs_crc32(sbi, ckpt, le32_to_cpu(ckpt->checksum_offset)); |
7e586fa0 JK |
1281 | *((__le32 *)((unsigned char *)ckpt + |
1282 | le32_to_cpu(ckpt->checksum_offset))) | |
127e670a JK |
1283 | = cpu_to_le32(crc32); |
1284 | ||
8508e44a | 1285 | start_blk = __start_cp_next_addr(sbi); |
127e670a | 1286 | |
22ad0b6a JK |
1287 | /* write nat bits */ |
1288 | if (enabled_nat_bits(sbi, cpc)) { | |
1289 | __u64 cp_ver = cur_cp_version(ckpt); | |
22ad0b6a JK |
1290 | block_t blk; |
1291 | ||
1292 | cp_ver |= ((__u64)crc32 << 32); | |
1293 | *(__le64 *)nm_i->nat_bits = cpu_to_le64(cp_ver); | |
1294 | ||
1295 | blk = start_blk + sbi->blocks_per_seg - nm_i->nat_bits_blocks; | |
1296 | for (i = 0; i < nm_i->nat_bits_blocks; i++) | |
1297 | update_meta_page(sbi, nm_i->nat_bits + | |
1298 | (i << F2FS_BLKSIZE_BITS), blk + i); | |
1299 | ||
1300 | /* Flush all the NAT BITS pages */ | |
1301 | while (get_pages(sbi, F2FS_DIRTY_META)) { | |
b0af6d49 | 1302 | sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
22ad0b6a JK |
1303 | if (unlikely(f2fs_cp_error(sbi))) |
1304 | return -EIO; | |
1305 | } | |
1306 | } | |
1307 | ||
127e670a | 1308 | /* write out checkpoint buffer at block 0 */ |
381722d2 CY |
1309 | update_meta_page(sbi, ckpt, start_blk++); |
1310 | ||
1311 | for (i = 1; i < 1 + cp_payload_blks; i++) | |
1312 | update_meta_page(sbi, (char *)ckpt + i * F2FS_BLKSIZE, | |
1313 | start_blk++); | |
1dbe4152 | 1314 | |
67298804 | 1315 | if (orphan_num) { |
127e670a JK |
1316 | write_orphan_inodes(sbi, start_blk); |
1317 | start_blk += orphan_blocks; | |
1318 | } | |
1319 | ||
1320 | write_data_summaries(sbi, start_blk); | |
1321 | start_blk += data_sum_blocks; | |
8f1dbbbb SL |
1322 | |
1323 | /* Record write statistics in the hot node summary */ | |
1324 | kbytes_written = sbi->kbytes_written; | |
1325 | if (sb->s_bdev->bd_part) | |
1326 | kbytes_written += BD_PART_WRITTEN(sbi); | |
1327 | ||
b7ad7512 | 1328 | seg_i->journal->info.kbytes_written = cpu_to_le64(kbytes_written); |
8f1dbbbb | 1329 | |
119ee914 | 1330 | if (__remain_node_summaries(cpc->reason)) { |
127e670a JK |
1331 | write_node_summaries(sbi, start_blk); |
1332 | start_blk += NR_CURSEG_NODE_TYPE; | |
1333 | } | |
1334 | ||
46706d59 GX |
1335 | /* update user_block_counts */ |
1336 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
1337 | percpu_counter_set(&sbi->alloc_valid_block_count, 0); | |
127e670a | 1338 | |
46706d59 GX |
1339 | /* Here, we have one bio having CP pack except cp pack 2 page */ |
1340 | sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); | |
1341 | ||
1342 | /* wait for previous submitted meta pages writeback */ | |
fb51b5ef | 1343 | wait_on_all_pages_writeback(sbi); |
127e670a | 1344 | |
cf779cab | 1345 | if (unlikely(f2fs_cp_error(sbi))) |
c34f42e2 | 1346 | return -EIO; |
cf779cab | 1347 | |
46706d59 GX |
1348 | /* flush all device cache */ |
1349 | err = f2fs_flush_device_cache(sbi); | |
1350 | if (err) | |
1351 | return err; | |
127e670a | 1352 | |
46706d59 GX |
1353 | /* barrier and flush checkpoint cp pack 2 page if it can */ |
1354 | commit_checkpoint(sbi, ckpt, start_blk); | |
6a8f8ca5 JK |
1355 | wait_on_all_pages_writeback(sbi); |
1356 | ||
74ef9241 | 1357 | release_ino_entry(sbi, false); |
cf779cab JK |
1358 | |
1359 | if (unlikely(f2fs_cp_error(sbi))) | |
c34f42e2 | 1360 | return -EIO; |
cf779cab | 1361 | |
caf0047e | 1362 | clear_sbi_flag(sbi, SBI_IS_DIRTY); |
bbf156f7 | 1363 | clear_sbi_flag(sbi, SBI_NEED_CP); |
8508e44a | 1364 | __set_cp_next_pack(sbi); |
c34f42e2 | 1365 | |
c2a080ae CY |
1366 | /* |
1367 | * redirty superblock if metadata like node page or inode cache is | |
1368 | * updated during writing checkpoint. | |
1369 | */ | |
1370 | if (get_pages(sbi, F2FS_DIRTY_NODES) || | |
1371 | get_pages(sbi, F2FS_DIRTY_IMETA)) | |
1372 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1373 | ||
1374 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_DENTS)); | |
1375 | ||
c34f42e2 | 1376 | return 0; |
127e670a JK |
1377 | } |
1378 | ||
0a8165d7 | 1379 | /* |
e1c42045 | 1380 | * We guarantee that this checkpoint procedure will not fail. |
127e670a | 1381 | */ |
c34f42e2 | 1382 | int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1383 | { |
1384 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1385 | unsigned long long ckpt_ver; | |
c34f42e2 | 1386 | int err = 0; |
127e670a | 1387 | |
43727527 | 1388 | mutex_lock(&sbi->cp_mutex); |
8501017e | 1389 | |
caf0047e | 1390 | if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) && |
c473f1a9 CY |
1391 | ((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) || |
1392 | ((cpc->reason & CP_DISCARD) && !sbi->discard_blks))) | |
8501017e | 1393 | goto out; |
c34f42e2 CY |
1394 | if (unlikely(f2fs_cp_error(sbi))) { |
1395 | err = -EIO; | |
cf779cab | 1396 | goto out; |
c34f42e2 CY |
1397 | } |
1398 | if (f2fs_readonly(sbi->sb)) { | |
1399 | err = -EROFS; | |
11504a8e | 1400 | goto out; |
c34f42e2 | 1401 | } |
2bda542d WL |
1402 | |
1403 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); | |
1404 | ||
c34f42e2 CY |
1405 | err = block_operations(sbi); |
1406 | if (err) | |
cf779cab | 1407 | goto out; |
127e670a | 1408 | |
75ab4cb8 | 1409 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish block_ops"); |
2af4bd6c | 1410 | |
b9109b0e | 1411 | f2fs_flush_merged_writes(sbi); |
127e670a | 1412 | |
58cce381 | 1413 | /* this is the case of multiple fstrims without any changes */ |
c473f1a9 | 1414 | if (cpc->reason & CP_DISCARD) { |
25290fa5 JK |
1415 | if (!exist_trim_candidates(sbi, cpc)) { |
1416 | unblock_operations(sbi); | |
1417 | goto out; | |
1418 | } | |
1419 | ||
0333ad4e JK |
1420 | if (NM_I(sbi)->dirty_nat_cnt == 0 && |
1421 | SIT_I(sbi)->dirty_sentries == 0 && | |
1422 | prefree_segments(sbi) == 0) { | |
1423 | flush_sit_entries(sbi, cpc); | |
1424 | clear_prefree_segments(sbi, cpc); | |
1425 | unblock_operations(sbi); | |
1426 | goto out; | |
1427 | } | |
58cce381 YH |
1428 | } |
1429 | ||
127e670a JK |
1430 | /* |
1431 | * update checkpoint pack index | |
1432 | * Increase the version number so that | |
1433 | * SIT entries and seg summaries are written at correct place | |
1434 | */ | |
d71b5564 | 1435 | ckpt_ver = cur_cp_version(ckpt); |
127e670a JK |
1436 | ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver); |
1437 | ||
1438 | /* write cached NAT/SIT entries to NAT/SIT area */ | |
22ad0b6a | 1439 | flush_nat_entries(sbi, cpc); |
4b2fecc8 | 1440 | flush_sit_entries(sbi, cpc); |
127e670a | 1441 | |
127e670a | 1442 | /* unlock all the fs_lock[] in do_checkpoint() */ |
c34f42e2 | 1443 | err = do_checkpoint(sbi, cpc); |
4e6a8d9b | 1444 | if (err) |
2dd15654 | 1445 | release_discard_addrs(sbi); |
4e6a8d9b | 1446 | else |
2dd15654 | 1447 | clear_prefree_segments(sbi, cpc); |
275b66b0 | 1448 | |
127e670a | 1449 | unblock_operations(sbi); |
942e0be6 | 1450 | stat_inc_cp_count(sbi->stat_info); |
10027551 | 1451 | |
c473f1a9 | 1452 | if (cpc->reason & CP_RECOVERY) |
10027551 JK |
1453 | f2fs_msg(sbi->sb, KERN_NOTICE, |
1454 | "checkpoint: version = %llx", ckpt_ver); | |
60b99b48 JK |
1455 | |
1456 | /* do checkpoint periodically */ | |
6beceb54 | 1457 | f2fs_update_time(sbi, CP_TIME); |
55d1cdb2 | 1458 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint"); |
8501017e JK |
1459 | out: |
1460 | mutex_unlock(&sbi->cp_mutex); | |
c34f42e2 | 1461 | return err; |
127e670a JK |
1462 | } |
1463 | ||
6451e041 | 1464 | void init_ino_entry_info(struct f2fs_sb_info *sbi) |
127e670a | 1465 | { |
6451e041 JK |
1466 | int i; |
1467 | ||
1468 | for (i = 0; i < MAX_INO_ENTRY; i++) { | |
67298804 CY |
1469 | struct inode_management *im = &sbi->im[i]; |
1470 | ||
1471 | INIT_RADIX_TREE(&im->ino_root, GFP_ATOMIC); | |
1472 | spin_lock_init(&im->ino_lock); | |
1473 | INIT_LIST_HEAD(&im->ino_list); | |
1474 | im->ino_num = 0; | |
6451e041 JK |
1475 | } |
1476 | ||
b5b82205 | 1477 | sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS - |
14b42817 WL |
1478 | NR_CURSEG_TYPE - __cp_payload(sbi)) * |
1479 | F2FS_ORPHANS_PER_BLOCK; | |
127e670a JK |
1480 | } |
1481 | ||
6e6093a8 | 1482 | int __init create_checkpoint_caches(void) |
127e670a | 1483 | { |
6451e041 JK |
1484 | ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry", |
1485 | sizeof(struct ino_entry)); | |
1486 | if (!ino_entry_slab) | |
127e670a | 1487 | return -ENOMEM; |
06292073 CY |
1488 | inode_entry_slab = f2fs_kmem_cache_create("f2fs_inode_entry", |
1489 | sizeof(struct inode_entry)); | |
6bacf52f | 1490 | if (!inode_entry_slab) { |
6451e041 | 1491 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1492 | return -ENOMEM; |
1493 | } | |
1494 | return 0; | |
1495 | } | |
1496 | ||
1497 | void destroy_checkpoint_caches(void) | |
1498 | { | |
6451e041 | 1499 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1500 | kmem_cache_destroy(inode_entry_slab); |
1501 | } |