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 | |
c1286ff4 JK |
29 | void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io) |
30 | { | |
31 | set_ckpt_flags(sbi, CP_ERROR_FLAG); | |
32 | sbi->sb->s_flags |= MS_RDONLY; | |
33 | if (!end_io) | |
13f00235 | 34 | f2fs_flush_merged_writes(sbi); |
c1286ff4 JK |
35 | } |
36 | ||
0a8165d7 | 37 | /* |
127e670a JK |
38 | * We guarantee no failure on the returned page. |
39 | */ | |
40 | struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) | |
41 | { | |
9df27d98 | 42 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a JK |
43 | struct page *page = NULL; |
44 | repeat: | |
c1286ff4 | 45 | page = f2fs_grab_cache_page(mapping, index, false); |
127e670a JK |
46 | if (!page) { |
47 | cond_resched(); | |
48 | goto repeat; | |
49 | } | |
c1286ff4 JK |
50 | f2fs_wait_on_page_writeback(page, META, true); |
51 | if (!PageUptodate(page)) | |
52 | SetPageUptodate(page); | |
127e670a JK |
53 | return page; |
54 | } | |
55 | ||
0a8165d7 | 56 | /* |
127e670a JK |
57 | * We guarantee no failure on the returned page. |
58 | */ | |
2b947003 CY |
59 | static struct page *__get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index, |
60 | bool is_meta) | |
127e670a | 61 | { |
9df27d98 | 62 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a | 63 | struct page *page; |
cf04e8eb | 64 | struct f2fs_io_info fio = { |
05ca3632 | 65 | .sbi = sbi, |
cf04e8eb | 66 | .type = META, |
dc45fd9e JK |
67 | .op = REQ_OP_READ, |
68 | .op_flags = REQ_SYNC | REQ_META | REQ_PRIO, | |
c1286ff4 JK |
69 | .old_blkaddr = index, |
70 | .new_blkaddr = index, | |
4375a336 | 71 | .encrypted_page = NULL, |
cf04e8eb | 72 | }; |
2b947003 CY |
73 | |
74 | if (unlikely(!is_meta)) | |
dc45fd9e | 75 | fio.op_flags &= ~REQ_META; |
127e670a | 76 | repeat: |
c1286ff4 | 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))) | |
c1286ff4 | 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, |
dc45fd9e JK |
162 | .op = REQ_OP_READ, |
163 | .op_flags = sync ? (REQ_SYNC | REQ_META | REQ_PRIO) : | |
164 | REQ_RAHEAD, | |
4375a336 | 165 | .encrypted_page = NULL, |
13f00235 | 166 | .in_list = false, |
662befda | 167 | }; |
c1286ff4 | 168 | struct blk_plug plug; |
662befda | 169 | |
2b947003 | 170 | if (unlikely(type == META_POR)) |
dc45fd9e | 171 | fio.op_flags &= ~REQ_META; |
2b947003 | 172 | |
c1286ff4 | 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 */ |
c1286ff4 | 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 */ | |
c1286ff4 | 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: |
c1286ff4 | 196 | fio.new_blkaddr = blkno; |
662befda CY |
197 | break; |
198 | default: | |
199 | BUG(); | |
200 | } | |
201 | ||
c1286ff4 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; |
13f00235 | 212 | f2fs_submit_page_bio(&fio); |
662befda CY |
213 | f2fs_put_page(page, 0); |
214 | } | |
215 | out: | |
c1286ff4 | 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); | |
c1286ff4 | 226 | if (!page || !PageUptodate(page)) |
635aee1f CY |
227 | readahead = true; |
228 | f2fs_put_page(page, 0); | |
229 | ||
230 | if (readahead) | |
04030d21 | 231 | ra_meta_pages(sbi, index, BIO_MAX_PAGES, META_POR, true); |
635aee1f CY |
232 | } |
233 | ||
13f00235 JK |
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 | ||
caf0047e | 242 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
cfb271d4 | 243 | goto redirty_out; |
857dc4e0 | 244 | if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0)) |
cfb271d4 | 245 | goto redirty_out; |
1e968fdf | 246 | if (unlikely(f2fs_cp_error(sbi))) |
cf779cab | 247 | goto redirty_out; |
127e670a | 248 | |
13f00235 | 249 | write_meta_page(sbi, page, io_type); |
577e3495 | 250 | dec_page_count(sbi, F2FS_DIRTY_META); |
857dc4e0 JK |
251 | |
252 | if (wbc->for_reclaim) | |
13f00235 JK |
253 | f2fs_submit_merged_write_cond(sbi, page->mapping->host, |
254 | 0, page->index, META); | |
c1286ff4 JK |
255 | |
256 | unlock_page(page); | |
257 | ||
258 | if (unlikely(f2fs_cp_error(sbi))) | |
13f00235 | 259 | f2fs_submit_merged_write(sbi, META); |
c1286ff4 | 260 | |
577e3495 | 261 | return 0; |
cfb271d4 CY |
262 | |
263 | redirty_out: | |
76f60268 | 264 | redirty_page_for_writepage(wbc, page); |
cfb271d4 | 265 | return AOP_WRITEPAGE_ACTIVATE; |
127e670a JK |
266 | } |
267 | ||
13f00235 JK |
268 | static int f2fs_write_meta_page(struct page *page, |
269 | struct writeback_control *wbc) | |
270 | { | |
271 | return __f2fs_write_meta_page(page, wbc, FS_META_IO); | |
272 | } | |
273 | ||
127e670a JK |
274 | static int f2fs_write_meta_pages(struct address_space *mapping, |
275 | struct writeback_control *wbc) | |
276 | { | |
4081363f | 277 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
50c8cdb3 | 278 | long diff, written; |
127e670a | 279 | |
13f00235 JK |
280 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
281 | goto skip_write; | |
282 | ||
5459aa97 | 283 | /* collect a number of dirty meta pages and write together */ |
50c8cdb3 JK |
284 | if (wbc->for_kupdate || |
285 | get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META)) | |
d3baf95d | 286 | goto skip_write; |
127e670a | 287 | |
13f00235 JK |
288 | /* if locked failed, cp will flush dirty pages instead */ |
289 | if (!mutex_trylock(&sbi->cp_mutex)) | |
290 | goto skip_write; | |
c1286ff4 | 291 | |
13f00235 | 292 | trace_f2fs_writepages(mapping->host, wbc, META); |
50c8cdb3 | 293 | diff = nr_pages_to_write(sbi, META, wbc); |
13f00235 | 294 | written = sync_meta_pages(sbi, META, wbc->nr_to_write, FS_META_IO); |
127e670a | 295 | mutex_unlock(&sbi->cp_mutex); |
50c8cdb3 | 296 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff); |
127e670a | 297 | return 0; |
d3baf95d JK |
298 | |
299 | skip_write: | |
300 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META); | |
c1286ff4 | 301 | trace_f2fs_writepages(mapping->host, wbc, META); |
d3baf95d | 302 | return 0; |
127e670a JK |
303 | } |
304 | ||
305 | long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, | |
13f00235 | 306 | long nr_to_write, enum iostat_type io_type) |
127e670a | 307 | { |
9df27d98 | 308 | struct address_space *mapping = META_MAPPING(sbi); |
c1286ff4 | 309 | pgoff_t index = 0, end = ULONG_MAX, prev = ULONG_MAX; |
127e670a JK |
310 | struct pagevec pvec; |
311 | long nwritten = 0; | |
312 | struct writeback_control wbc = { | |
313 | .for_reclaim = 0, | |
314 | }; | |
c1286ff4 | 315 | struct blk_plug plug; |
127e670a JK |
316 | |
317 | pagevec_init(&pvec, 0); | |
318 | ||
c1286ff4 JK |
319 | blk_start_plug(&plug); |
320 | ||
127e670a JK |
321 | while (index <= end) { |
322 | int i, nr_pages; | |
323 | nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, | |
324 | PAGECACHE_TAG_DIRTY, | |
325 | min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1); | |
cfb271d4 | 326 | if (unlikely(nr_pages == 0)) |
127e670a JK |
327 | break; |
328 | ||
329 | for (i = 0; i < nr_pages; i++) { | |
330 | struct page *page = pvec.pages[i]; | |
203681f6 | 331 | |
c1286ff4 | 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 | ||
c1286ff4 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 | ||
13f00235 | 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) |
13f00235 | 371 | f2fs_submit_merged_write(sbi, type); |
127e670a | 372 | |
c1286ff4 JK |
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 | ||
c1286ff4 JK |
382 | if (!PageUptodate(page)) |
383 | SetPageUptodate(page); | |
127e670a | 384 | if (!PageDirty(page)) { |
c1286ff4 | 385 | f2fs_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, | |
c1286ff4 JK |
400 | #ifdef CONFIG_MIGRATION |
401 | .migratepage = f2fs_migrate_page, | |
402 | #endif | |
127e670a JK |
403 | }; |
404 | ||
6451e041 | 405 | static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
953e6cc6 | 406 | { |
67298804 | 407 | struct inode_management *im = &sbi->im[type]; |
80c54505 JK |
408 | struct ino_entry *e, *tmp; |
409 | ||
410 | tmp = f2fs_kmem_cache_alloc(ino_entry_slab, GFP_NOFS); | |
39efac41 | 411 | retry: |
80c54505 | 412 | radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); |
769ec6e5 | 413 | |
67298804 | 414 | spin_lock(&im->ino_lock); |
67298804 | 415 | e = radix_tree_lookup(&im->ino_root, ino); |
39efac41 | 416 | if (!e) { |
80c54505 | 417 | e = tmp; |
67298804 CY |
418 | if (radix_tree_insert(&im->ino_root, ino, e)) { |
419 | spin_unlock(&im->ino_lock); | |
769ec6e5 | 420 | radix_tree_preload_end(); |
39efac41 JK |
421 | goto retry; |
422 | } | |
423 | memset(e, 0, sizeof(struct ino_entry)); | |
424 | e->ino = ino; | |
953e6cc6 | 425 | |
67298804 | 426 | list_add_tail(&e->list, &im->ino_list); |
8c402946 | 427 | if (type != ORPHAN_INO) |
67298804 | 428 | im->ino_num++; |
39efac41 | 429 | } |
67298804 | 430 | spin_unlock(&im->ino_lock); |
769ec6e5 | 431 | radix_tree_preload_end(); |
80c54505 JK |
432 | |
433 | if (e != tmp) | |
434 | kmem_cache_free(ino_entry_slab, tmp); | |
953e6cc6 JK |
435 | } |
436 | ||
6451e041 | 437 | static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
953e6cc6 | 438 | { |
67298804 | 439 | struct inode_management *im = &sbi->im[type]; |
6451e041 | 440 | struct ino_entry *e; |
953e6cc6 | 441 | |
67298804 CY |
442 | spin_lock(&im->ino_lock); |
443 | e = radix_tree_lookup(&im->ino_root, ino); | |
39efac41 JK |
444 | if (e) { |
445 | list_del(&e->list); | |
67298804 CY |
446 | radix_tree_delete(&im->ino_root, ino); |
447 | im->ino_num--; | |
448 | spin_unlock(&im->ino_lock); | |
39efac41 JK |
449 | kmem_cache_free(ino_entry_slab, e); |
450 | return; | |
953e6cc6 | 451 | } |
67298804 | 452 | spin_unlock(&im->ino_lock); |
953e6cc6 JK |
453 | } |
454 | ||
c1286ff4 | 455 | void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
456 | { |
457 | /* add new dirty ino entry into list */ | |
458 | __add_ino_entry(sbi, ino, type); | |
459 | } | |
460 | ||
c1286ff4 | 461 | void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
462 | { |
463 | /* remove dirty ino entry from list */ | |
464 | __remove_ino_entry(sbi, ino, type); | |
465 | } | |
466 | ||
467 | /* mode should be APPEND_INO or UPDATE_INO */ | |
468 | bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode) | |
469 | { | |
67298804 | 470 | struct inode_management *im = &sbi->im[mode]; |
fff04f90 | 471 | struct ino_entry *e; |
67298804 CY |
472 | |
473 | spin_lock(&im->ino_lock); | |
474 | e = radix_tree_lookup(&im->ino_root, ino); | |
475 | spin_unlock(&im->ino_lock); | |
fff04f90 JK |
476 | return e ? true : false; |
477 | } | |
478 | ||
c1286ff4 | 479 | void release_ino_entry(struct f2fs_sb_info *sbi, bool all) |
fff04f90 JK |
480 | { |
481 | struct ino_entry *e, *tmp; | |
482 | int i; | |
483 | ||
c1286ff4 | 484 | for (i = all ? ORPHAN_INO: APPEND_INO; i <= UPDATE_INO; i++) { |
67298804 CY |
485 | struct inode_management *im = &sbi->im[i]; |
486 | ||
487 | spin_lock(&im->ino_lock); | |
488 | list_for_each_entry_safe(e, tmp, &im->ino_list, list) { | |
fff04f90 | 489 | list_del(&e->list); |
67298804 | 490 | radix_tree_delete(&im->ino_root, e->ino); |
fff04f90 | 491 | kmem_cache_free(ino_entry_slab, e); |
67298804 | 492 | im->ino_num--; |
fff04f90 | 493 | } |
67298804 | 494 | spin_unlock(&im->ino_lock); |
fff04f90 JK |
495 | } |
496 | } | |
497 | ||
cbd56e7d | 498 | int acquire_orphan_inode(struct f2fs_sb_info *sbi) |
127e670a | 499 | { |
67298804 | 500 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a JK |
501 | int err = 0; |
502 | ||
67298804 | 503 | spin_lock(&im->ino_lock); |
c1286ff4 JK |
504 | |
505 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
506 | if (time_to_inject(sbi, FAULT_ORPHAN)) { | |
507 | spin_unlock(&im->ino_lock); | |
13f00235 | 508 | f2fs_show_injection_info(FAULT_ORPHAN); |
c1286ff4 JK |
509 | return -ENOSPC; |
510 | } | |
511 | #endif | |
67298804 | 512 | if (unlikely(im->ino_num >= sbi->max_orphans)) |
127e670a | 513 | err = -ENOSPC; |
cbd56e7d | 514 | else |
67298804 CY |
515 | im->ino_num++; |
516 | spin_unlock(&im->ino_lock); | |
0d47c1ad | 517 | |
127e670a JK |
518 | return err; |
519 | } | |
520 | ||
cbd56e7d JK |
521 | void release_orphan_inode(struct f2fs_sb_info *sbi) |
522 | { | |
67298804 CY |
523 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
524 | ||
525 | spin_lock(&im->ino_lock); | |
526 | f2fs_bug_on(sbi, im->ino_num == 0); | |
527 | im->ino_num--; | |
528 | spin_unlock(&im->ino_lock); | |
cbd56e7d JK |
529 | } |
530 | ||
c1286ff4 | 531 | void add_orphan_inode(struct inode *inode) |
127e670a | 532 | { |
39efac41 | 533 | /* add new orphan ino entry into list */ |
c1286ff4 JK |
534 | __add_ino_entry(F2FS_I_SB(inode), inode->i_ino, ORPHAN_INO); |
535 | update_inode_page(inode); | |
127e670a JK |
536 | } |
537 | ||
538 | void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) | |
539 | { | |
953e6cc6 | 540 | /* remove orphan entry from orphan list */ |
6451e041 | 541 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
127e670a JK |
542 | } |
543 | ||
8c14bfad | 544 | static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 545 | { |
8c14bfad | 546 | struct inode *inode; |
c1286ff4 JK |
547 | struct node_info ni; |
548 | int err = acquire_orphan_inode(sbi); | |
549 | ||
550 | if (err) { | |
551 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
552 | f2fs_msg(sbi->sb, KERN_WARNING, | |
553 | "%s: orphan failed (ino=%x), run fsck to fix.", | |
554 | __func__, ino); | |
555 | return err; | |
556 | } | |
557 | ||
558 | __add_ino_entry(sbi, ino, ORPHAN_INO); | |
8c14bfad | 559 | |
c1286ff4 | 560 | inode = f2fs_iget_retry(sbi->sb, ino); |
8c14bfad CY |
561 | if (IS_ERR(inode)) { |
562 | /* | |
563 | * there should be a bug that we can't find the entry | |
564 | * to orphan inode. | |
565 | */ | |
566 | f2fs_bug_on(sbi, PTR_ERR(inode) == -ENOENT); | |
567 | return PTR_ERR(inode); | |
568 | } | |
569 | ||
127e670a JK |
570 | clear_nlink(inode); |
571 | ||
572 | /* truncate all the data during iput */ | |
573 | iput(inode); | |
c1286ff4 JK |
574 | |
575 | get_node_info(sbi, ino, &ni); | |
576 | ||
577 | /* ENOMEM was fully retried in f2fs_evict_inode. */ | |
578 | if (ni.blk_addr != NULL_ADDR) { | |
579 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
580 | f2fs_msg(sbi->sb, KERN_WARNING, | |
13f00235 | 581 | "%s: orphan failed (ino=%x) by kernel, retry mount.", |
c1286ff4 JK |
582 | __func__, ino); |
583 | return -EIO; | |
584 | } | |
585 | __remove_ino_entry(sbi, ino, ORPHAN_INO); | |
8c14bfad | 586 | return 0; |
127e670a JK |
587 | } |
588 | ||
8c14bfad | 589 | int recover_orphan_inodes(struct f2fs_sb_info *sbi) |
127e670a | 590 | { |
3c642985 | 591 | block_t start_blk, orphan_blocks, i, j; |
13f00235 JK |
592 | unsigned int s_flags = sbi->sb->s_flags; |
593 | int err = 0; | |
127e670a | 594 | |
c1286ff4 | 595 | if (!is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG)) |
8c14bfad | 596 | return 0; |
127e670a | 597 | |
13f00235 JK |
598 | if (s_flags & MS_RDONLY) { |
599 | f2fs_msg(sbi->sb, KERN_INFO, "orphan cleanup on readonly fs"); | |
600 | sbi->sb->s_flags &= ~MS_RDONLY; | |
601 | } | |
602 | ||
603 | #ifdef CONFIG_QUOTA | |
604 | /* Needed for iput() to work correctly and not trash data */ | |
605 | sbi->sb->s_flags |= MS_ACTIVE; | |
606 | /* Turn on quotas so that they are updated correctly */ | |
607 | f2fs_enable_quota_files(sbi); | |
608 | #endif | |
609 | ||
55141486 | 610 | start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi); |
3c642985 | 611 | orphan_blocks = __start_sum_addr(sbi) - 1 - __cp_payload(sbi); |
127e670a | 612 | |
26879fb1 | 613 | ra_meta_pages(sbi, start_blk, orphan_blocks, META_CP, true); |
662befda | 614 | |
3c642985 | 615 | for (i = 0; i < orphan_blocks; i++) { |
127e670a JK |
616 | struct page *page = get_meta_page(sbi, start_blk + i); |
617 | struct f2fs_orphan_block *orphan_blk; | |
618 | ||
619 | orphan_blk = (struct f2fs_orphan_block *)page_address(page); | |
620 | for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) { | |
621 | nid_t ino = le32_to_cpu(orphan_blk->ino[j]); | |
8c14bfad CY |
622 | err = recover_orphan_inode(sbi, ino); |
623 | if (err) { | |
624 | f2fs_put_page(page, 1); | |
13f00235 | 625 | goto out; |
8c14bfad | 626 | } |
127e670a JK |
627 | } |
628 | f2fs_put_page(page, 1); | |
629 | } | |
630 | /* clear Orphan Flag */ | |
c1286ff4 | 631 | clear_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG); |
13f00235 JK |
632 | out: |
633 | #ifdef CONFIG_QUOTA | |
634 | /* Turn quotas off */ | |
635 | f2fs_quota_off_umount(sbi->sb); | |
636 | #endif | |
637 | sbi->sb->s_flags = s_flags; /* Restore MS_RDONLY status */ | |
638 | ||
639 | return err; | |
127e670a JK |
640 | } |
641 | ||
642 | static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk) | |
643 | { | |
502c6e0b | 644 | struct list_head *head; |
127e670a | 645 | struct f2fs_orphan_block *orphan_blk = NULL; |
127e670a | 646 | unsigned int nentries = 0; |
bd936f84 | 647 | unsigned short index = 1; |
8c402946 | 648 | unsigned short orphan_blocks; |
4531929e | 649 | struct page *page = NULL; |
6451e041 | 650 | struct ino_entry *orphan = NULL; |
67298804 | 651 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a | 652 | |
67298804 | 653 | orphan_blocks = GET_ORPHAN_BLOCKS(im->ino_num); |
8c402946 | 654 | |
d6c67a4f JK |
655 | /* |
656 | * we don't need to do spin_lock(&im->ino_lock) here, since all the | |
657 | * orphan inode operations are covered under f2fs_lock_op(). | |
658 | * And, spin_lock should be avoided due to page operations below. | |
659 | */ | |
67298804 | 660 | head = &im->ino_list; |
127e670a JK |
661 | |
662 | /* loop for each orphan inode entry and write them in Jornal block */ | |
502c6e0b GZ |
663 | list_for_each_entry(orphan, head, list) { |
664 | if (!page) { | |
bd936f84 | 665 | page = grab_meta_page(sbi, start_blk++); |
502c6e0b GZ |
666 | orphan_blk = |
667 | (struct f2fs_orphan_block *)page_address(page); | |
668 | memset(orphan_blk, 0, sizeof(*orphan_blk)); | |
669 | } | |
127e670a | 670 | |
36795567 | 671 | orphan_blk->ino[nentries++] = cpu_to_le32(orphan->ino); |
127e670a | 672 | |
36795567 | 673 | if (nentries == F2FS_ORPHANS_PER_BLOCK) { |
127e670a JK |
674 | /* |
675 | * an orphan block is full of 1020 entries, | |
676 | * then we need to flush current orphan blocks | |
677 | * and bring another one in memory | |
678 | */ | |
679 | orphan_blk->blk_addr = cpu_to_le16(index); | |
680 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
681 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
682 | set_page_dirty(page); | |
683 | f2fs_put_page(page, 1); | |
684 | index++; | |
127e670a JK |
685 | nentries = 0; |
686 | page = NULL; | |
687 | } | |
502c6e0b | 688 | } |
127e670a | 689 | |
502c6e0b GZ |
690 | if (page) { |
691 | orphan_blk->blk_addr = cpu_to_le16(index); | |
692 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
693 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
694 | set_page_dirty(page); | |
695 | f2fs_put_page(page, 1); | |
127e670a | 696 | } |
127e670a JK |
697 | } |
698 | ||
c1286ff4 JK |
699 | static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr, |
700 | struct f2fs_checkpoint **cp_block, struct page **cp_page, | |
701 | unsigned long long *version) | |
127e670a | 702 | { |
127e670a | 703 | unsigned long blk_size = sbi->blocksize; |
c1286ff4 | 704 | size_t crc_offset = 0; |
7e586fa0 | 705 | __u32 crc = 0; |
127e670a | 706 | |
c1286ff4 JK |
707 | *cp_page = get_meta_page(sbi, cp_addr); |
708 | *cp_block = (struct f2fs_checkpoint *)page_address(*cp_page); | |
127e670a | 709 | |
c1286ff4 | 710 | crc_offset = le32_to_cpu((*cp_block)->checksum_offset); |
13f00235 | 711 | if (crc_offset > (blk_size - sizeof(__le32))) { |
c1286ff4 JK |
712 | f2fs_msg(sbi->sb, KERN_WARNING, |
713 | "invalid crc_offset: %zu", crc_offset); | |
714 | return -EINVAL; | |
715 | } | |
127e670a | 716 | |
13f00235 | 717 | crc = cur_cp_crc(*cp_block); |
c1286ff4 JK |
718 | if (!f2fs_crc_valid(sbi, crc, *cp_block, crc_offset)) { |
719 | f2fs_msg(sbi->sb, KERN_WARNING, "invalid crc value"); | |
720 | return -EINVAL; | |
721 | } | |
127e670a | 722 | |
c1286ff4 JK |
723 | *version = cur_cp_version(*cp_block); |
724 | return 0; | |
725 | } | |
127e670a | 726 | |
c1286ff4 JK |
727 | static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, |
728 | block_t cp_addr, unsigned long long *version) | |
729 | { | |
730 | struct page *cp_page_1 = NULL, *cp_page_2 = NULL; | |
731 | struct f2fs_checkpoint *cp_block = NULL; | |
732 | unsigned long long cur_version = 0, pre_version = 0; | |
733 | int err; | |
127e670a | 734 | |
c1286ff4 JK |
735 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
736 | &cp_page_1, version); | |
737 | if (err) | |
738 | goto invalid_cp1; | |
739 | pre_version = *version; | |
127e670a | 740 | |
c1286ff4 JK |
741 | cp_addr += le32_to_cpu(cp_block->cp_pack_total_block_count) - 1; |
742 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, | |
743 | &cp_page_2, version); | |
744 | if (err) | |
127e670a | 745 | goto invalid_cp2; |
c1286ff4 | 746 | cur_version = *version; |
127e670a JK |
747 | |
748 | if (cur_version == pre_version) { | |
749 | *version = cur_version; | |
750 | f2fs_put_page(cp_page_2, 1); | |
751 | return cp_page_1; | |
752 | } | |
753 | invalid_cp2: | |
754 | f2fs_put_page(cp_page_2, 1); | |
755 | invalid_cp1: | |
756 | f2fs_put_page(cp_page_1, 1); | |
757 | return NULL; | |
758 | } | |
759 | ||
760 | int get_valid_checkpoint(struct f2fs_sb_info *sbi) | |
761 | { | |
762 | struct f2fs_checkpoint *cp_block; | |
763 | struct f2fs_super_block *fsb = sbi->raw_super; | |
764 | struct page *cp1, *cp2, *cur_page; | |
765 | unsigned long blk_size = sbi->blocksize; | |
766 | unsigned long long cp1_version = 0, cp2_version = 0; | |
767 | unsigned long long cp_start_blk_no; | |
55141486 | 768 | unsigned int cp_blks = 1 + __cp_payload(sbi); |
1dbe4152 CL |
769 | block_t cp_blk_no; |
770 | int i; | |
127e670a | 771 | |
1dbe4152 | 772 | sbi->ckpt = kzalloc(cp_blks * blk_size, GFP_KERNEL); |
127e670a JK |
773 | if (!sbi->ckpt) |
774 | return -ENOMEM; | |
775 | /* | |
776 | * Finding out valid cp block involves read both | |
777 | * sets( cp pack1 and cp pack 2) | |
778 | */ | |
779 | cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
780 | cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version); | |
781 | ||
782 | /* The second checkpoint pack should start at the next segment */ | |
f9a4e6df JK |
783 | cp_start_blk_no += ((unsigned long long)1) << |
784 | le32_to_cpu(fsb->log_blocks_per_seg); | |
127e670a JK |
785 | cp2 = validate_checkpoint(sbi, cp_start_blk_no, &cp2_version); |
786 | ||
787 | if (cp1 && cp2) { | |
788 | if (ver_after(cp2_version, cp1_version)) | |
789 | cur_page = cp2; | |
790 | else | |
791 | cur_page = cp1; | |
792 | } else if (cp1) { | |
793 | cur_page = cp1; | |
794 | } else if (cp2) { | |
795 | cur_page = cp2; | |
796 | } else { | |
797 | goto fail_no_cp; | |
798 | } | |
799 | ||
800 | cp_block = (struct f2fs_checkpoint *)page_address(cur_page); | |
801 | memcpy(sbi->ckpt, cp_block, blk_size); | |
802 | ||
c1286ff4 JK |
803 | /* Sanity checking of checkpoint */ |
804 | if (sanity_check_ckpt(sbi)) | |
80ea4ddb | 805 | goto free_fail_no_cp; |
c1286ff4 | 806 | |
6b266c3a JK |
807 | if (cur_page == cp1) |
808 | sbi->cur_cp_pack = 1; | |
809 | else | |
810 | sbi->cur_cp_pack = 2; | |
811 | ||
1dbe4152 CL |
812 | if (cp_blks <= 1) |
813 | goto done; | |
814 | ||
815 | cp_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
816 | if (cur_page == cp2) | |
817 | cp_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg); | |
818 | ||
819 | for (i = 1; i < cp_blks; i++) { | |
820 | void *sit_bitmap_ptr; | |
821 | unsigned char *ckpt = (unsigned char *)sbi->ckpt; | |
822 | ||
823 | cur_page = get_meta_page(sbi, cp_blk_no + i); | |
824 | sit_bitmap_ptr = page_address(cur_page); | |
825 | memcpy(ckpt + i * blk_size, sit_bitmap_ptr, blk_size); | |
826 | f2fs_put_page(cur_page, 1); | |
827 | } | |
828 | done: | |
127e670a JK |
829 | f2fs_put_page(cp1, 1); |
830 | f2fs_put_page(cp2, 1); | |
831 | return 0; | |
832 | ||
80ea4ddb JK |
833 | free_fail_no_cp: |
834 | f2fs_put_page(cp1, 1); | |
835 | f2fs_put_page(cp2, 1); | |
127e670a JK |
836 | fail_no_cp: |
837 | kfree(sbi->ckpt); | |
838 | return -EINVAL; | |
839 | } | |
840 | ||
c1286ff4 | 841 | static void __add_dirty_inode(struct inode *inode, enum inode_type type) |
127e670a | 842 | { |
4081363f | 843 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c1286ff4 | 844 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
127e670a | 845 | |
c1286ff4 JK |
846 | if (is_inode_flag_set(inode, flag)) |
847 | return; | |
2d7b822a | 848 | |
c1286ff4 | 849 | set_inode_flag(inode, flag); |
13f00235 JK |
850 | if (!f2fs_is_volatile_file(inode)) |
851 | list_add_tail(&F2FS_I(inode)->dirty_list, | |
852 | &sbi->inode_list[type]); | |
c1286ff4 JK |
853 | stat_inc_dirty_inode(sbi, type); |
854 | } | |
855 | ||
856 | static void __remove_dirty_inode(struct inode *inode, enum inode_type type) | |
857 | { | |
858 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; | |
859 | ||
860 | if (get_dirty_pages(inode) || !is_inode_flag_set(inode, flag)) | |
861 | return; | |
862 | ||
863 | list_del_init(&F2FS_I(inode)->dirty_list); | |
864 | clear_inode_flag(inode, flag); | |
865 | stat_dec_dirty_inode(F2FS_I_SB(inode), type); | |
5deb8267 JK |
866 | } |
867 | ||
a7ffdbe2 | 868 | void update_dirty_page(struct inode *inode, struct page *page) |
5deb8267 | 869 | { |
4081363f | 870 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c1286ff4 | 871 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
5deb8267 | 872 | |
5ac9f36f CY |
873 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
874 | !S_ISLNK(inode->i_mode)) | |
127e670a | 875 | return; |
7bd59381 | 876 | |
c1286ff4 JK |
877 | spin_lock(&sbi->inode_lock[type]); |
878 | if (type != FILE_INODE || test_opt(sbi, DATA_FLUSH)) | |
879 | __add_dirty_inode(inode, type); | |
a7ffdbe2 | 880 | inode_inc_dirty_pages(inode); |
c1286ff4 | 881 | spin_unlock(&sbi->inode_lock[type]); |
cf0ee0f0 | 882 | |
a7ffdbe2 | 883 | SetPagePrivate(page); |
9e4ded3f | 884 | f2fs_trace_pid(page); |
5deb8267 JK |
885 | } |
886 | ||
c1286ff4 | 887 | void remove_dirty_inode(struct inode *inode) |
127e670a | 888 | { |
4081363f | 889 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c1286ff4 | 890 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
127e670a | 891 | |
c1286ff4 JK |
892 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
893 | !S_ISLNK(inode->i_mode)) | |
127e670a JK |
894 | return; |
895 | ||
c1286ff4 | 896 | if (type == FILE_INODE && !test_opt(sbi, DATA_FLUSH)) |
3b10b1fd | 897 | return; |
127e670a | 898 | |
c1286ff4 JK |
899 | spin_lock(&sbi->inode_lock[type]); |
900 | __remove_dirty_inode(inode, type); | |
901 | spin_unlock(&sbi->inode_lock[type]); | |
74d0b917 JK |
902 | } |
903 | ||
c1286ff4 | 904 | int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type) |
127e670a | 905 | { |
ce3b7d80 | 906 | struct list_head *head; |
127e670a | 907 | struct inode *inode; |
c1286ff4 JK |
908 | struct f2fs_inode_info *fi; |
909 | bool is_dir = (type == DIR_INODE); | |
13f00235 | 910 | unsigned long ino = 0; |
c1286ff4 JK |
911 | |
912 | trace_f2fs_sync_dirty_inodes_enter(sbi->sb, is_dir, | |
913 | get_pages(sbi, is_dir ? | |
914 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
127e670a | 915 | retry: |
af41d3ee | 916 | if (unlikely(f2fs_cp_error(sbi))) |
c1286ff4 | 917 | return -EIO; |
af41d3ee | 918 | |
c1286ff4 | 919 | spin_lock(&sbi->inode_lock[type]); |
ce3b7d80 | 920 | |
c1286ff4 | 921 | head = &sbi->inode_list[type]; |
127e670a | 922 | if (list_empty(head)) { |
c1286ff4 JK |
923 | spin_unlock(&sbi->inode_lock[type]); |
924 | trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir, | |
925 | get_pages(sbi, is_dir ? | |
926 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
927 | return 0; | |
127e670a | 928 | } |
7129702a | 929 | fi = list_first_entry(head, struct f2fs_inode_info, dirty_list); |
c1286ff4 JK |
930 | inode = igrab(&fi->vfs_inode); |
931 | spin_unlock(&sbi->inode_lock[type]); | |
127e670a | 932 | if (inode) { |
13f00235 JK |
933 | unsigned long cur_ino = inode->i_ino; |
934 | ||
935 | if (is_dir) | |
936 | F2FS_I(inode)->cp_task = current; | |
937 | ||
87d6f890 | 938 | filemap_fdatawrite(inode->i_mapping); |
13f00235 JK |
939 | |
940 | if (is_dir) | |
941 | F2FS_I(inode)->cp_task = NULL; | |
942 | ||
127e670a | 943 | iput(inode); |
13f00235 JK |
944 | /* We need to give cpu to another writers. */ |
945 | if (ino == cur_ino) { | |
946 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
947 | cond_resched(); | |
948 | } else { | |
949 | ino = cur_ino; | |
950 | } | |
127e670a JK |
951 | } else { |
952 | /* | |
953 | * We should submit bio, since it exists several | |
954 | * wribacking dentry pages in the freeing inode. | |
955 | */ | |
13f00235 | 956 | f2fs_submit_merged_write(sbi, DATA); |
7ecebe5e | 957 | cond_resched(); |
127e670a JK |
958 | } |
959 | goto retry; | |
960 | } | |
961 | ||
c1286ff4 JK |
962 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi) |
963 | { | |
964 | struct list_head *head = &sbi->inode_list[DIRTY_META]; | |
965 | struct inode *inode; | |
966 | struct f2fs_inode_info *fi; | |
967 | s64 total = get_pages(sbi, F2FS_DIRTY_IMETA); | |
968 | ||
969 | while (total--) { | |
970 | if (unlikely(f2fs_cp_error(sbi))) | |
971 | return -EIO; | |
972 | ||
973 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
974 | if (list_empty(head)) { | |
975 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
976 | return 0; | |
977 | } | |
7129702a | 978 | fi = list_first_entry(head, struct f2fs_inode_info, |
c1286ff4 JK |
979 | gdirty_list); |
980 | inode = igrab(&fi->vfs_inode); | |
981 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
982 | if (inode) { | |
a15f017e JK |
983 | sync_inode_metadata(inode, 0); |
984 | ||
985 | /* it's on eviction */ | |
986 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) | |
987 | update_inode_page(inode); | |
c1286ff4 JK |
988 | iput(inode); |
989 | } | |
990 | }; | |
991 | return 0; | |
992 | } | |
993 | ||
13f00235 JK |
994 | static void __prepare_cp_block(struct f2fs_sb_info *sbi) |
995 | { | |
996 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
997 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
998 | nid_t last_nid = nm_i->next_scan_nid; | |
999 | ||
1000 | next_free_nid(sbi, &last_nid); | |
1001 | ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi)); | |
1002 | ckpt->valid_node_count = cpu_to_le32(valid_node_count(sbi)); | |
1003 | ckpt->valid_inode_count = cpu_to_le32(valid_inode_count(sbi)); | |
1004 | ckpt->next_free_nid = cpu_to_le32(last_nid); | |
1005 | } | |
1006 | ||
0a8165d7 | 1007 | /* |
127e670a JK |
1008 | * Freeze all the FS-operations for checkpoint. |
1009 | */ | |
cf779cab | 1010 | static int block_operations(struct f2fs_sb_info *sbi) |
127e670a | 1011 | { |
127e670a JK |
1012 | struct writeback_control wbc = { |
1013 | .sync_mode = WB_SYNC_ALL, | |
1014 | .nr_to_write = LONG_MAX, | |
1015 | .for_reclaim = 0, | |
1016 | }; | |
c718379b | 1017 | struct blk_plug plug; |
cf779cab | 1018 | int err = 0; |
c718379b JK |
1019 | |
1020 | blk_start_plug(&plug); | |
1021 | ||
39936837 | 1022 | retry_flush_dents: |
e479556b | 1023 | f2fs_lock_all(sbi); |
127e670a | 1024 | /* write all the dirty dentry pages */ |
127e670a | 1025 | if (get_pages(sbi, F2FS_DIRTY_DENTS)) { |
e479556b | 1026 | f2fs_unlock_all(sbi); |
c1286ff4 JK |
1027 | err = sync_dirty_inodes(sbi, DIR_INODE); |
1028 | if (err) | |
1029 | goto out; | |
13f00235 | 1030 | cond_resched(); |
c1286ff4 JK |
1031 | goto retry_flush_dents; |
1032 | } | |
1033 | ||
13f00235 JK |
1034 | /* |
1035 | * POR: we should ensure that there are no dirty node pages | |
1036 | * until finishing nat/sit flush. inode->i_blocks can be updated. | |
1037 | */ | |
1038 | down_write(&sbi->node_change); | |
1039 | ||
c1286ff4 | 1040 | if (get_pages(sbi, F2FS_DIRTY_IMETA)) { |
13f00235 | 1041 | up_write(&sbi->node_change); |
c1286ff4 JK |
1042 | f2fs_unlock_all(sbi); |
1043 | err = f2fs_sync_inode_meta(sbi); | |
1044 | if (err) | |
cf779cab | 1045 | goto out; |
13f00235 | 1046 | cond_resched(); |
39936837 | 1047 | goto retry_flush_dents; |
127e670a JK |
1048 | } |
1049 | ||
39936837 | 1050 | retry_flush_nodes: |
b3582c68 | 1051 | down_write(&sbi->node_write); |
127e670a JK |
1052 | |
1053 | if (get_pages(sbi, F2FS_DIRTY_NODES)) { | |
b3582c68 | 1054 | up_write(&sbi->node_write); |
13f00235 | 1055 | err = sync_node_pages(sbi, &wbc, false, FS_CP_NODE_IO); |
c1286ff4 | 1056 | if (err) { |
13f00235 | 1057 | up_write(&sbi->node_change); |
cf779cab | 1058 | f2fs_unlock_all(sbi); |
cf779cab JK |
1059 | goto out; |
1060 | } | |
13f00235 | 1061 | cond_resched(); |
39936837 | 1062 | goto retry_flush_nodes; |
127e670a | 1063 | } |
13f00235 JK |
1064 | |
1065 | /* | |
1066 | * sbi->node_change is used only for AIO write_begin path which produces | |
1067 | * dirty node blocks and some checkpoint values by block allocation. | |
1068 | */ | |
1069 | __prepare_cp_block(sbi); | |
1070 | up_write(&sbi->node_change); | |
cf779cab | 1071 | out: |
c718379b | 1072 | blk_finish_plug(&plug); |
cf779cab | 1073 | return err; |
127e670a JK |
1074 | } |
1075 | ||
1076 | static void unblock_operations(struct f2fs_sb_info *sbi) | |
1077 | { | |
b3582c68 | 1078 | up_write(&sbi->node_write); |
e479556b | 1079 | f2fs_unlock_all(sbi); |
127e670a JK |
1080 | } |
1081 | ||
fb51b5ef CL |
1082 | static void wait_on_all_pages_writeback(struct f2fs_sb_info *sbi) |
1083 | { | |
1084 | DEFINE_WAIT(wait); | |
1085 | ||
1086 | for (;;) { | |
1087 | prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE); | |
1088 | ||
9e266223 | 1089 | if (!get_pages(sbi, F2FS_WB_CP_DATA)) |
fb51b5ef CL |
1090 | break; |
1091 | ||
c1286ff4 | 1092 | io_schedule_timeout(5*HZ); |
fb51b5ef CL |
1093 | } |
1094 | finish_wait(&sbi->cp_wait, &wait); | |
1095 | } | |
1096 | ||
c1286ff4 JK |
1097 | static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
1098 | { | |
1099 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num; | |
1100 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
13f00235 JK |
1101 | unsigned long flags; |
1102 | ||
1103 | spin_lock_irqsave(&sbi->cp_lock, flags); | |
1104 | ||
1105 | if ((cpc->reason & CP_UMOUNT) && | |
1106 | le32_to_cpu(ckpt->cp_pack_total_block_count) > | |
1107 | sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) | |
1108 | disable_nat_bits(sbi, false); | |
c1286ff4 | 1109 | |
13f00235 JK |
1110 | if (cpc->reason & CP_TRIMMED) |
1111 | __set_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
c1286ff4 | 1112 | |
13f00235 | 1113 | if (cpc->reason & CP_UMOUNT) |
c1286ff4 JK |
1114 | __set_ckpt_flags(ckpt, CP_UMOUNT_FLAG); |
1115 | else | |
1116 | __clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG); | |
1117 | ||
13f00235 | 1118 | if (cpc->reason & CP_FASTBOOT) |
c1286ff4 JK |
1119 | __set_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); |
1120 | else | |
1121 | __clear_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); | |
1122 | ||
1123 | if (orphan_num) | |
1124 | __set_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1125 | else | |
1126 | __clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1127 | ||
1128 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) | |
1129 | __set_ckpt_flags(ckpt, CP_FSCK_FLAG); | |
1130 | ||
1131 | /* set this flag to activate crc|cp_ver for recovery */ | |
1132 | __set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG); | |
1133 | ||
13f00235 | 1134 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
c1286ff4 JK |
1135 | } |
1136 | ||
1137 | static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) | |
127e670a JK |
1138 | { |
1139 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
77041823 | 1140 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
13f00235 | 1141 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num, flags; |
127e670a | 1142 | block_t start_blk; |
127e670a | 1143 | unsigned int data_sum_blocks, orphan_blocks; |
7e586fa0 | 1144 | __u32 crc32 = 0; |
127e670a | 1145 | int i; |
55141486 | 1146 | int cp_payload_blks = __cp_payload(sbi); |
c1286ff4 JK |
1147 | struct super_block *sb = sbi->sb; |
1148 | struct curseg_info *seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
1149 | u64 kbytes_written; | |
127e670a JK |
1150 | |
1151 | /* Flush all the NAT/SIT pages */ | |
cf779cab | 1152 | while (get_pages(sbi, F2FS_DIRTY_META)) { |
13f00235 | 1153 | sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
cf779cab | 1154 | if (unlikely(f2fs_cp_error(sbi))) |
c1286ff4 | 1155 | return -EIO; |
cf779cab | 1156 | } |
127e670a | 1157 | |
127e670a JK |
1158 | /* |
1159 | * modify checkpoint | |
1160 | * version number is already updated | |
1161 | */ | |
1162 | ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi)); | |
127e670a | 1163 | ckpt->free_segment_count = cpu_to_le32(free_segments(sbi)); |
b5b82205 | 1164 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
127e670a JK |
1165 | ckpt->cur_node_segno[i] = |
1166 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE)); | |
1167 | ckpt->cur_node_blkoff[i] = | |
1168 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_NODE)); | |
1169 | ckpt->alloc_type[i + CURSEG_HOT_NODE] = | |
1170 | curseg_alloc_type(sbi, i + CURSEG_HOT_NODE); | |
1171 | } | |
b5b82205 | 1172 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { |
127e670a JK |
1173 | ckpt->cur_data_segno[i] = |
1174 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA)); | |
1175 | ckpt->cur_data_blkoff[i] = | |
1176 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_DATA)); | |
1177 | ckpt->alloc_type[i + CURSEG_HOT_DATA] = | |
1178 | curseg_alloc_type(sbi, i + CURSEG_HOT_DATA); | |
1179 | } | |
1180 | ||
127e670a | 1181 | /* 2 cp + n data seg summary + orphan inode blocks */ |
3fa06d7b | 1182 | data_sum_blocks = npages_for_summary_flush(sbi, false); |
13f00235 | 1183 | spin_lock_irqsave(&sbi->cp_lock, flags); |
b5b82205 | 1184 | if (data_sum_blocks < NR_CURSEG_DATA_TYPE) |
c1286ff4 | 1185 | __set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
127e670a | 1186 | else |
c1286ff4 | 1187 | __clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
13f00235 | 1188 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
127e670a | 1189 | |
67298804 | 1190 | orphan_blocks = GET_ORPHAN_BLOCKS(orphan_num); |
1dbe4152 CL |
1191 | ckpt->cp_pack_start_sum = cpu_to_le32(1 + cp_payload_blks + |
1192 | orphan_blocks); | |
127e670a | 1193 | |
119ee914 | 1194 | if (__remain_node_summaries(cpc->reason)) |
b5b82205 | 1195 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS+ |
1dbe4152 CL |
1196 | cp_payload_blks + data_sum_blocks + |
1197 | orphan_blocks + NR_CURSEG_NODE_TYPE); | |
119ee914 | 1198 | else |
b5b82205 | 1199 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
1dbe4152 CL |
1200 | cp_payload_blks + data_sum_blocks + |
1201 | orphan_blocks); | |
119ee914 | 1202 | |
c1286ff4 JK |
1203 | /* update ckpt flag for checkpoint */ |
1204 | update_ckpt_flags(sbi, cpc); | |
2ae4c673 | 1205 | |
127e670a JK |
1206 | /* update SIT/NAT bitmap */ |
1207 | get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP)); | |
1208 | get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP)); | |
1209 | ||
c1286ff4 | 1210 | crc32 = f2fs_crc32(sbi, ckpt, le32_to_cpu(ckpt->checksum_offset)); |
7e586fa0 JK |
1211 | *((__le32 *)((unsigned char *)ckpt + |
1212 | le32_to_cpu(ckpt->checksum_offset))) | |
127e670a JK |
1213 | = cpu_to_le32(crc32); |
1214 | ||
6b266c3a | 1215 | start_blk = __start_cp_next_addr(sbi); |
127e670a | 1216 | |
13f00235 JK |
1217 | /* write nat bits */ |
1218 | if (enabled_nat_bits(sbi, cpc)) { | |
1219 | __u64 cp_ver = cur_cp_version(ckpt); | |
1220 | block_t blk; | |
1221 | ||
1222 | cp_ver |= ((__u64)crc32 << 32); | |
1223 | *(__le64 *)nm_i->nat_bits = cpu_to_le64(cp_ver); | |
1224 | ||
1225 | blk = start_blk + sbi->blocks_per_seg - nm_i->nat_bits_blocks; | |
1226 | for (i = 0; i < nm_i->nat_bits_blocks; i++) | |
1227 | update_meta_page(sbi, nm_i->nat_bits + | |
1228 | (i << F2FS_BLKSIZE_BITS), blk + i); | |
1229 | ||
1230 | /* Flush all the NAT BITS pages */ | |
1231 | while (get_pages(sbi, F2FS_DIRTY_META)) { | |
1232 | sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); | |
1233 | if (unlikely(f2fs_cp_error(sbi))) | |
1234 | return -EIO; | |
1235 | } | |
1236 | } | |
1237 | ||
a7230d16 JK |
1238 | /* need to wait for end_io results */ |
1239 | wait_on_all_pages_writeback(sbi); | |
1240 | if (unlikely(f2fs_cp_error(sbi))) | |
c1286ff4 | 1241 | return -EIO; |
a7230d16 | 1242 | |
127e670a | 1243 | /* write out checkpoint buffer at block 0 */ |
381722d2 CY |
1244 | update_meta_page(sbi, ckpt, start_blk++); |
1245 | ||
1246 | for (i = 1; i < 1 + cp_payload_blks; i++) | |
1247 | update_meta_page(sbi, (char *)ckpt + i * F2FS_BLKSIZE, | |
1248 | start_blk++); | |
1dbe4152 | 1249 | |
67298804 | 1250 | if (orphan_num) { |
127e670a JK |
1251 | write_orphan_inodes(sbi, start_blk); |
1252 | start_blk += orphan_blocks; | |
1253 | } | |
1254 | ||
1255 | write_data_summaries(sbi, start_blk); | |
1256 | start_blk += data_sum_blocks; | |
c1286ff4 JK |
1257 | |
1258 | /* Record write statistics in the hot node summary */ | |
1259 | kbytes_written = sbi->kbytes_written; | |
1260 | if (sb->s_bdev->bd_part) | |
1261 | kbytes_written += BD_PART_WRITTEN(sbi); | |
1262 | ||
1263 | seg_i->journal->info.kbytes_written = cpu_to_le64(kbytes_written); | |
1264 | ||
119ee914 | 1265 | if (__remain_node_summaries(cpc->reason)) { |
127e670a JK |
1266 | write_node_summaries(sbi, start_blk); |
1267 | start_blk += NR_CURSEG_NODE_TYPE; | |
1268 | } | |
1269 | ||
1270 | /* writeout checkpoint block */ | |
381722d2 | 1271 | update_meta_page(sbi, ckpt, start_blk); |
127e670a JK |
1272 | |
1273 | /* wait for previous submitted node/meta pages writeback */ | |
fb51b5ef | 1274 | wait_on_all_pages_writeback(sbi); |
127e670a | 1275 | |
cf779cab | 1276 | if (unlikely(f2fs_cp_error(sbi))) |
c1286ff4 | 1277 | return -EIO; |
cf779cab | 1278 | |
c1286ff4 JK |
1279 | filemap_fdatawait_range(NODE_MAPPING(sbi), 0, LLONG_MAX); |
1280 | filemap_fdatawait_range(META_MAPPING(sbi), 0, LLONG_MAX); | |
127e670a JK |
1281 | |
1282 | /* update user_block_counts */ | |
1283 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
c1286ff4 | 1284 | percpu_counter_set(&sbi->alloc_valid_block_count, 0); |
127e670a JK |
1285 | |
1286 | /* Here, we only have one bio having CP pack */ | |
13f00235 | 1287 | sync_meta_pages(sbi, META_FLUSH, LONG_MAX, FS_CP_META_IO); |
127e670a | 1288 | |
6a8f8ca5 JK |
1289 | /* wait for previous submitted meta pages writeback */ |
1290 | wait_on_all_pages_writeback(sbi); | |
1291 | ||
c1286ff4 | 1292 | release_ino_entry(sbi, false); |
cf779cab JK |
1293 | |
1294 | if (unlikely(f2fs_cp_error(sbi))) | |
c1286ff4 | 1295 | return -EIO; |
cf779cab | 1296 | |
caf0047e | 1297 | clear_sbi_flag(sbi, SBI_IS_DIRTY); |
c1286ff4 | 1298 | clear_sbi_flag(sbi, SBI_NEED_CP); |
6b266c3a | 1299 | __set_cp_next_pack(sbi); |
c1286ff4 JK |
1300 | |
1301 | /* | |
1302 | * redirty superblock if metadata like node page or inode cache is | |
1303 | * updated during writing checkpoint. | |
1304 | */ | |
1305 | if (get_pages(sbi, F2FS_DIRTY_NODES) || | |
1306 | get_pages(sbi, F2FS_DIRTY_IMETA)) | |
1307 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1308 | ||
1309 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_DENTS)); | |
1310 | ||
1311 | return 0; | |
127e670a JK |
1312 | } |
1313 | ||
0a8165d7 | 1314 | /* |
e1c42045 | 1315 | * We guarantee that this checkpoint procedure will not fail. |
127e670a | 1316 | */ |
c1286ff4 | 1317 | int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1318 | { |
1319 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1320 | unsigned long long ckpt_ver; | |
c1286ff4 | 1321 | int err = 0; |
127e670a | 1322 | |
43727527 | 1323 | mutex_lock(&sbi->cp_mutex); |
8501017e | 1324 | |
caf0047e | 1325 | if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) && |
13f00235 JK |
1326 | ((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) || |
1327 | ((cpc->reason & CP_DISCARD) && !sbi->discard_blks))) | |
8501017e | 1328 | goto out; |
c1286ff4 JK |
1329 | if (unlikely(f2fs_cp_error(sbi))) { |
1330 | err = -EIO; | |
cf779cab | 1331 | goto out; |
c1286ff4 JK |
1332 | } |
1333 | if (f2fs_readonly(sbi->sb)) { | |
1334 | err = -EROFS; | |
11504a8e | 1335 | goto out; |
c1286ff4 | 1336 | } |
2bda542d WL |
1337 | |
1338 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); | |
1339 | ||
c1286ff4 JK |
1340 | err = block_operations(sbi); |
1341 | if (err) | |
cf779cab | 1342 | goto out; |
127e670a | 1343 | |
75ab4cb8 | 1344 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish block_ops"); |
2af4bd6c | 1345 | |
13f00235 | 1346 | f2fs_flush_merged_writes(sbi); |
c1286ff4 JK |
1347 | |
1348 | /* this is the case of multiple fstrims without any changes */ | |
13f00235 | 1349 | if (cpc->reason & CP_DISCARD) { |
556f5ba3 JK |
1350 | if (!exist_trim_candidates(sbi, cpc)) { |
1351 | unblock_operations(sbi); | |
1352 | goto out; | |
1353 | } | |
1354 | ||
d051ccbd JK |
1355 | if (NM_I(sbi)->dirty_nat_cnt == 0 && |
1356 | SIT_I(sbi)->dirty_sentries == 0 && | |
1357 | prefree_segments(sbi) == 0) { | |
1358 | flush_sit_entries(sbi, cpc); | |
1359 | clear_prefree_segments(sbi, cpc); | |
1360 | unblock_operations(sbi); | |
1361 | goto out; | |
1362 | } | |
c1286ff4 | 1363 | } |
127e670a JK |
1364 | |
1365 | /* | |
1366 | * update checkpoint pack index | |
1367 | * Increase the version number so that | |
1368 | * SIT entries and seg summaries are written at correct place | |
1369 | */ | |
d71b5564 | 1370 | ckpt_ver = cur_cp_version(ckpt); |
127e670a JK |
1371 | ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver); |
1372 | ||
1373 | /* write cached NAT/SIT entries to NAT/SIT area */ | |
13f00235 | 1374 | flush_nat_entries(sbi, cpc); |
4b2fecc8 | 1375 | flush_sit_entries(sbi, cpc); |
127e670a | 1376 | |
127e670a | 1377 | /* unlock all the fs_lock[] in do_checkpoint() */ |
c1286ff4 | 1378 | err = do_checkpoint(sbi, cpc); |
132263dd | 1379 | if (err) |
ab38818b | 1380 | release_discard_addrs(sbi); |
132263dd | 1381 | else |
ab38818b | 1382 | clear_prefree_segments(sbi, cpc); |
127e670a JK |
1383 | |
1384 | unblock_operations(sbi); | |
942e0be6 | 1385 | stat_inc_cp_count(sbi->stat_info); |
10027551 | 1386 | |
13f00235 | 1387 | if (cpc->reason & CP_RECOVERY) |
10027551 JK |
1388 | f2fs_msg(sbi->sb, KERN_NOTICE, |
1389 | "checkpoint: version = %llx", ckpt_ver); | |
60b99b48 JK |
1390 | |
1391 | /* do checkpoint periodically */ | |
c1286ff4 JK |
1392 | f2fs_update_time(sbi, CP_TIME); |
1393 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint"); | |
8501017e JK |
1394 | out: |
1395 | mutex_unlock(&sbi->cp_mutex); | |
c1286ff4 | 1396 | return err; |
127e670a JK |
1397 | } |
1398 | ||
6451e041 | 1399 | void init_ino_entry_info(struct f2fs_sb_info *sbi) |
127e670a | 1400 | { |
6451e041 JK |
1401 | int i; |
1402 | ||
1403 | for (i = 0; i < MAX_INO_ENTRY; i++) { | |
67298804 CY |
1404 | struct inode_management *im = &sbi->im[i]; |
1405 | ||
1406 | INIT_RADIX_TREE(&im->ino_root, GFP_ATOMIC); | |
1407 | spin_lock_init(&im->ino_lock); | |
1408 | INIT_LIST_HEAD(&im->ino_list); | |
1409 | im->ino_num = 0; | |
6451e041 JK |
1410 | } |
1411 | ||
b5b82205 | 1412 | sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS - |
14b42817 WL |
1413 | NR_CURSEG_TYPE - __cp_payload(sbi)) * |
1414 | F2FS_ORPHANS_PER_BLOCK; | |
127e670a JK |
1415 | } |
1416 | ||
6e6093a8 | 1417 | int __init create_checkpoint_caches(void) |
127e670a | 1418 | { |
6451e041 JK |
1419 | ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry", |
1420 | sizeof(struct ino_entry)); | |
1421 | if (!ino_entry_slab) | |
127e670a | 1422 | return -ENOMEM; |
06292073 CY |
1423 | inode_entry_slab = f2fs_kmem_cache_create("f2fs_inode_entry", |
1424 | sizeof(struct inode_entry)); | |
6bacf52f | 1425 | if (!inode_entry_slab) { |
6451e041 | 1426 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1427 | return -ENOMEM; |
1428 | } | |
1429 | return 0; | |
1430 | } | |
1431 | ||
1432 | void destroy_checkpoint_caches(void) | |
1433 | { | |
6451e041 | 1434 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1435 | kmem_cache_destroy(inode_entry_slab); |
1436 | } |