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 | |
0a8165d7 | 29 | /* |
127e670a JK |
30 | * We guarantee no failure on the returned page. |
31 | */ | |
32 | struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) | |
33 | { | |
9df27d98 | 34 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a JK |
35 | struct page *page = NULL; |
36 | repeat: | |
bde44686 | 37 | page = grab_cache_page(mapping, index); |
127e670a JK |
38 | if (!page) { |
39 | cond_resched(); | |
40 | goto repeat; | |
41 | } | |
bde44686 | 42 | f2fs_wait_on_page_writeback(page, META); |
127e670a JK |
43 | SetPageUptodate(page); |
44 | return page; | |
45 | } | |
46 | ||
0a8165d7 | 47 | /* |
127e670a JK |
48 | * We guarantee no failure on the returned page. |
49 | */ | |
50 | struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) | |
51 | { | |
9df27d98 | 52 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a | 53 | struct page *page; |
cf04e8eb JK |
54 | struct f2fs_io_info fio = { |
55 | .type = META, | |
56 | .rw = READ_SYNC | REQ_META | REQ_PRIO, | |
57 | .blk_addr = index, | |
58 | }; | |
127e670a JK |
59 | repeat: |
60 | page = grab_cache_page(mapping, index); | |
61 | if (!page) { | |
62 | cond_resched(); | |
63 | goto repeat; | |
64 | } | |
393ff91f JK |
65 | if (PageUptodate(page)) |
66 | goto out; | |
67 | ||
cf04e8eb | 68 | if (f2fs_submit_page_bio(sbi, page, &fio)) |
127e670a | 69 | goto repeat; |
127e670a | 70 | |
393ff91f | 71 | lock_page(page); |
6bacf52f | 72 | if (unlikely(page->mapping != mapping)) { |
afcb7ca0 JK |
73 | f2fs_put_page(page, 1); |
74 | goto repeat; | |
75 | } | |
393ff91f | 76 | out: |
127e670a JK |
77 | return page; |
78 | } | |
79 | ||
f0c9cada | 80 | bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type) |
662befda CY |
81 | { |
82 | switch (type) { | |
83 | case META_NAT: | |
66b00c18 | 84 | break; |
662befda | 85 | case META_SIT: |
66b00c18 CY |
86 | if (unlikely(blkaddr >= SIT_BLK_CNT(sbi))) |
87 | return false; | |
88 | break; | |
81c1a0f1 | 89 | case META_SSA: |
66b00c18 CY |
90 | if (unlikely(blkaddr >= MAIN_BLKADDR(sbi) || |
91 | blkaddr < SM_I(sbi)->ssa_blkaddr)) | |
92 | return false; | |
93 | break; | |
662befda | 94 | case META_CP: |
66b00c18 CY |
95 | if (unlikely(blkaddr >= SIT_I(sbi)->sit_base_addr || |
96 | blkaddr < __start_cp_addr(sbi))) | |
97 | return false; | |
98 | break; | |
4c521f49 | 99 | case META_POR: |
66b00c18 CY |
100 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
101 | blkaddr < MAIN_BLKADDR(sbi))) | |
102 | return false; | |
103 | break; | |
662befda CY |
104 | default: |
105 | BUG(); | |
106 | } | |
66b00c18 CY |
107 | |
108 | return true; | |
662befda CY |
109 | } |
110 | ||
111 | /* | |
81c1a0f1 | 112 | * Readahead CP/NAT/SIT/SSA pages |
662befda | 113 | */ |
4c521f49 | 114 | int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, int type) |
662befda CY |
115 | { |
116 | block_t prev_blk_addr = 0; | |
117 | struct page *page; | |
4c521f49 | 118 | block_t blkno = start; |
662befda CY |
119 | struct f2fs_io_info fio = { |
120 | .type = META, | |
121 | .rw = READ_SYNC | REQ_META | REQ_PRIO | |
122 | }; | |
123 | ||
124 | for (; nrpages-- > 0; blkno++) { | |
662befda | 125 | |
66b00c18 CY |
126 | if (!is_valid_blkaddr(sbi, blkno, type)) |
127 | goto out; | |
128 | ||
662befda CY |
129 | switch (type) { |
130 | case META_NAT: | |
66b00c18 CY |
131 | if (unlikely(blkno >= |
132 | NAT_BLOCK_OFFSET(NM_I(sbi)->max_nid))) | |
662befda | 133 | blkno = 0; |
66b00c18 | 134 | /* get nat block addr */ |
cf04e8eb | 135 | fio.blk_addr = current_nat_addr(sbi, |
662befda CY |
136 | blkno * NAT_ENTRY_PER_BLOCK); |
137 | break; | |
138 | case META_SIT: | |
139 | /* get sit block addr */ | |
cf04e8eb | 140 | fio.blk_addr = current_sit_addr(sbi, |
662befda | 141 | blkno * SIT_ENTRY_PER_BLOCK); |
cf04e8eb | 142 | if (blkno != start && prev_blk_addr + 1 != fio.blk_addr) |
662befda | 143 | goto out; |
cf04e8eb | 144 | prev_blk_addr = fio.blk_addr; |
662befda | 145 | break; |
81c1a0f1 | 146 | case META_SSA: |
662befda | 147 | case META_CP: |
4c521f49 | 148 | case META_POR: |
cf04e8eb | 149 | fio.blk_addr = blkno; |
662befda CY |
150 | break; |
151 | default: | |
152 | BUG(); | |
153 | } | |
154 | ||
cf04e8eb | 155 | page = grab_cache_page(META_MAPPING(sbi), fio.blk_addr); |
662befda CY |
156 | if (!page) |
157 | continue; | |
158 | if (PageUptodate(page)) { | |
662befda CY |
159 | f2fs_put_page(page, 1); |
160 | continue; | |
161 | } | |
162 | ||
cf04e8eb | 163 | f2fs_submit_page_mbio(sbi, page, &fio); |
662befda CY |
164 | f2fs_put_page(page, 0); |
165 | } | |
166 | out: | |
167 | f2fs_submit_merged_bio(sbi, META, READ); | |
168 | return blkno - start; | |
169 | } | |
170 | ||
635aee1f CY |
171 | void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index) |
172 | { | |
173 | struct page *page; | |
174 | bool readahead = false; | |
175 | ||
176 | page = find_get_page(META_MAPPING(sbi), index); | |
177 | if (!page || (page && !PageUptodate(page))) | |
178 | readahead = true; | |
179 | f2fs_put_page(page, 0); | |
180 | ||
181 | if (readahead) | |
182 | ra_meta_pages(sbi, index, MAX_BIO_BLOCKS(sbi), META_POR); | |
183 | } | |
184 | ||
127e670a JK |
185 | static int f2fs_write_meta_page(struct page *page, |
186 | struct writeback_control *wbc) | |
187 | { | |
4081363f | 188 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
127e670a | 189 | |
ecda0de3 CY |
190 | trace_f2fs_writepage(page, META); |
191 | ||
caf0047e | 192 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
cfb271d4 | 193 | goto redirty_out; |
857dc4e0 | 194 | if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0)) |
cfb271d4 | 195 | goto redirty_out; |
1e968fdf | 196 | if (unlikely(f2fs_cp_error(sbi))) |
cf779cab | 197 | goto redirty_out; |
127e670a | 198 | |
3cb5ad15 | 199 | f2fs_wait_on_page_writeback(page, META); |
577e3495 JK |
200 | write_meta_page(sbi, page); |
201 | dec_page_count(sbi, F2FS_DIRTY_META); | |
202 | unlock_page(page); | |
857dc4e0 JK |
203 | |
204 | if (wbc->for_reclaim) | |
205 | f2fs_submit_merged_bio(sbi, META, WRITE); | |
577e3495 | 206 | return 0; |
cfb271d4 CY |
207 | |
208 | redirty_out: | |
76f60268 | 209 | redirty_page_for_writepage(wbc, page); |
cfb271d4 | 210 | return AOP_WRITEPAGE_ACTIVATE; |
127e670a JK |
211 | } |
212 | ||
213 | static int f2fs_write_meta_pages(struct address_space *mapping, | |
214 | struct writeback_control *wbc) | |
215 | { | |
4081363f | 216 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
50c8cdb3 | 217 | long diff, written; |
127e670a | 218 | |
e5748434 CY |
219 | trace_f2fs_writepages(mapping->host, wbc, META); |
220 | ||
5459aa97 | 221 | /* collect a number of dirty meta pages and write together */ |
50c8cdb3 JK |
222 | if (wbc->for_kupdate || |
223 | get_pages(sbi, F2FS_DIRTY_META) < nr_pages_to_skip(sbi, META)) | |
d3baf95d | 224 | goto skip_write; |
127e670a JK |
225 | |
226 | /* if mounting is failed, skip writing node pages */ | |
227 | mutex_lock(&sbi->cp_mutex); | |
50c8cdb3 JK |
228 | diff = nr_pages_to_write(sbi, META, wbc); |
229 | written = sync_meta_pages(sbi, META, wbc->nr_to_write); | |
127e670a | 230 | mutex_unlock(&sbi->cp_mutex); |
50c8cdb3 | 231 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff); |
127e670a | 232 | return 0; |
d3baf95d JK |
233 | |
234 | skip_write: | |
235 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META); | |
236 | return 0; | |
127e670a JK |
237 | } |
238 | ||
239 | long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, | |
240 | long nr_to_write) | |
241 | { | |
9df27d98 | 242 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a JK |
243 | pgoff_t index = 0, end = LONG_MAX; |
244 | struct pagevec pvec; | |
245 | long nwritten = 0; | |
246 | struct writeback_control wbc = { | |
247 | .for_reclaim = 0, | |
248 | }; | |
249 | ||
250 | pagevec_init(&pvec, 0); | |
251 | ||
252 | while (index <= end) { | |
253 | int i, nr_pages; | |
254 | nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, | |
255 | PAGECACHE_TAG_DIRTY, | |
256 | min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1); | |
cfb271d4 | 257 | if (unlikely(nr_pages == 0)) |
127e670a JK |
258 | break; |
259 | ||
260 | for (i = 0; i < nr_pages; i++) { | |
261 | struct page *page = pvec.pages[i]; | |
203681f6 | 262 | |
127e670a | 263 | lock_page(page); |
203681f6 JK |
264 | |
265 | if (unlikely(page->mapping != mapping)) { | |
266 | continue_unlock: | |
267 | unlock_page(page); | |
268 | continue; | |
269 | } | |
270 | if (!PageDirty(page)) { | |
271 | /* someone wrote it for us */ | |
272 | goto continue_unlock; | |
273 | } | |
274 | ||
275 | if (!clear_page_dirty_for_io(page)) | |
276 | goto continue_unlock; | |
277 | ||
97dc3fd2 | 278 | if (mapping->a_ops->writepage(page, &wbc)) { |
577e3495 JK |
279 | unlock_page(page); |
280 | break; | |
281 | } | |
cfb271d4 CY |
282 | nwritten++; |
283 | if (unlikely(nwritten >= nr_to_write)) | |
127e670a JK |
284 | break; |
285 | } | |
286 | pagevec_release(&pvec); | |
287 | cond_resched(); | |
288 | } | |
289 | ||
290 | if (nwritten) | |
458e6197 | 291 | f2fs_submit_merged_bio(sbi, type, WRITE); |
127e670a JK |
292 | |
293 | return nwritten; | |
294 | } | |
295 | ||
296 | static int f2fs_set_meta_page_dirty(struct page *page) | |
297 | { | |
26c6b887 JK |
298 | trace_f2fs_set_page_dirty(page, META); |
299 | ||
127e670a JK |
300 | SetPageUptodate(page); |
301 | if (!PageDirty(page)) { | |
302 | __set_page_dirty_nobuffers(page); | |
4081363f | 303 | inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_META); |
1601839e | 304 | SetPagePrivate(page); |
9e4ded3f | 305 | f2fs_trace_pid(page); |
127e670a JK |
306 | return 1; |
307 | } | |
308 | return 0; | |
309 | } | |
310 | ||
311 | const struct address_space_operations f2fs_meta_aops = { | |
312 | .writepage = f2fs_write_meta_page, | |
313 | .writepages = f2fs_write_meta_pages, | |
314 | .set_page_dirty = f2fs_set_meta_page_dirty, | |
487261f3 CY |
315 | .invalidatepage = f2fs_invalidate_page, |
316 | .releasepage = f2fs_release_page, | |
127e670a JK |
317 | }; |
318 | ||
6451e041 | 319 | static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
953e6cc6 | 320 | { |
67298804 | 321 | struct inode_management *im = &sbi->im[type]; |
39efac41 JK |
322 | struct ino_entry *e; |
323 | retry: | |
769ec6e5 JK |
324 | if (radix_tree_preload(GFP_NOFS)) { |
325 | cond_resched(); | |
326 | goto retry; | |
327 | } | |
328 | ||
67298804 | 329 | spin_lock(&im->ino_lock); |
39efac41 | 330 | |
67298804 | 331 | e = radix_tree_lookup(&im->ino_root, ino); |
39efac41 JK |
332 | if (!e) { |
333 | e = kmem_cache_alloc(ino_entry_slab, GFP_ATOMIC); | |
334 | if (!e) { | |
67298804 | 335 | spin_unlock(&im->ino_lock); |
769ec6e5 | 336 | radix_tree_preload_end(); |
39efac41 | 337 | goto retry; |
953e6cc6 | 338 | } |
67298804 CY |
339 | if (radix_tree_insert(&im->ino_root, ino, e)) { |
340 | spin_unlock(&im->ino_lock); | |
39efac41 | 341 | kmem_cache_free(ino_entry_slab, e); |
769ec6e5 | 342 | radix_tree_preload_end(); |
39efac41 JK |
343 | goto retry; |
344 | } | |
345 | memset(e, 0, sizeof(struct ino_entry)); | |
346 | e->ino = ino; | |
953e6cc6 | 347 | |
67298804 | 348 | list_add_tail(&e->list, &im->ino_list); |
8c402946 | 349 | if (type != ORPHAN_INO) |
67298804 | 350 | im->ino_num++; |
39efac41 | 351 | } |
67298804 | 352 | spin_unlock(&im->ino_lock); |
769ec6e5 | 353 | radix_tree_preload_end(); |
953e6cc6 JK |
354 | } |
355 | ||
6451e041 | 356 | static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
953e6cc6 | 357 | { |
67298804 | 358 | struct inode_management *im = &sbi->im[type]; |
6451e041 | 359 | struct ino_entry *e; |
953e6cc6 | 360 | |
67298804 CY |
361 | spin_lock(&im->ino_lock); |
362 | e = radix_tree_lookup(&im->ino_root, ino); | |
39efac41 JK |
363 | if (e) { |
364 | list_del(&e->list); | |
67298804 CY |
365 | radix_tree_delete(&im->ino_root, ino); |
366 | im->ino_num--; | |
367 | spin_unlock(&im->ino_lock); | |
39efac41 JK |
368 | kmem_cache_free(ino_entry_slab, e); |
369 | return; | |
953e6cc6 | 370 | } |
67298804 | 371 | spin_unlock(&im->ino_lock); |
953e6cc6 JK |
372 | } |
373 | ||
fff04f90 JK |
374 | void add_dirty_inode(struct f2fs_sb_info *sbi, nid_t ino, int type) |
375 | { | |
376 | /* add new dirty ino entry into list */ | |
377 | __add_ino_entry(sbi, ino, type); | |
378 | } | |
379 | ||
380 | void remove_dirty_inode(struct f2fs_sb_info *sbi, nid_t ino, int type) | |
381 | { | |
382 | /* remove dirty ino entry from list */ | |
383 | __remove_ino_entry(sbi, ino, type); | |
384 | } | |
385 | ||
386 | /* mode should be APPEND_INO or UPDATE_INO */ | |
387 | bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode) | |
388 | { | |
67298804 | 389 | struct inode_management *im = &sbi->im[mode]; |
fff04f90 | 390 | struct ino_entry *e; |
67298804 CY |
391 | |
392 | spin_lock(&im->ino_lock); | |
393 | e = radix_tree_lookup(&im->ino_root, ino); | |
394 | spin_unlock(&im->ino_lock); | |
fff04f90 JK |
395 | return e ? true : false; |
396 | } | |
397 | ||
6f12ac25 | 398 | void release_dirty_inode(struct f2fs_sb_info *sbi) |
fff04f90 JK |
399 | { |
400 | struct ino_entry *e, *tmp; | |
401 | int i; | |
402 | ||
403 | for (i = APPEND_INO; i <= UPDATE_INO; i++) { | |
67298804 CY |
404 | struct inode_management *im = &sbi->im[i]; |
405 | ||
406 | spin_lock(&im->ino_lock); | |
407 | list_for_each_entry_safe(e, tmp, &im->ino_list, list) { | |
fff04f90 | 408 | list_del(&e->list); |
67298804 | 409 | radix_tree_delete(&im->ino_root, e->ino); |
fff04f90 | 410 | kmem_cache_free(ino_entry_slab, e); |
67298804 | 411 | im->ino_num--; |
fff04f90 | 412 | } |
67298804 | 413 | spin_unlock(&im->ino_lock); |
fff04f90 JK |
414 | } |
415 | } | |
416 | ||
cbd56e7d | 417 | int acquire_orphan_inode(struct f2fs_sb_info *sbi) |
127e670a | 418 | { |
67298804 | 419 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a JK |
420 | int err = 0; |
421 | ||
67298804 CY |
422 | spin_lock(&im->ino_lock); |
423 | if (unlikely(im->ino_num >= sbi->max_orphans)) | |
127e670a | 424 | err = -ENOSPC; |
cbd56e7d | 425 | else |
67298804 CY |
426 | im->ino_num++; |
427 | spin_unlock(&im->ino_lock); | |
0d47c1ad | 428 | |
127e670a JK |
429 | return err; |
430 | } | |
431 | ||
cbd56e7d JK |
432 | void release_orphan_inode(struct f2fs_sb_info *sbi) |
433 | { | |
67298804 CY |
434 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
435 | ||
436 | spin_lock(&im->ino_lock); | |
437 | f2fs_bug_on(sbi, im->ino_num == 0); | |
438 | im->ino_num--; | |
439 | spin_unlock(&im->ino_lock); | |
cbd56e7d JK |
440 | } |
441 | ||
127e670a JK |
442 | void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
443 | { | |
39efac41 | 444 | /* add new orphan ino entry into list */ |
6451e041 | 445 | __add_ino_entry(sbi, ino, ORPHAN_INO); |
127e670a JK |
446 | } |
447 | ||
448 | void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) | |
449 | { | |
953e6cc6 | 450 | /* remove orphan entry from orphan list */ |
6451e041 | 451 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
127e670a JK |
452 | } |
453 | ||
454 | static void recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) | |
455 | { | |
456 | struct inode *inode = f2fs_iget(sbi->sb, ino); | |
9850cf4a | 457 | f2fs_bug_on(sbi, IS_ERR(inode)); |
127e670a JK |
458 | clear_nlink(inode); |
459 | ||
460 | /* truncate all the data during iput */ | |
461 | iput(inode); | |
462 | } | |
463 | ||
8f99a946 | 464 | void recover_orphan_inodes(struct f2fs_sb_info *sbi) |
127e670a | 465 | { |
3c642985 | 466 | block_t start_blk, orphan_blocks, i, j; |
127e670a | 467 | |
25ca923b | 468 | if (!is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ORPHAN_PRESENT_FLAG)) |
8f99a946 | 469 | return; |
127e670a | 470 | |
caf0047e | 471 | set_sbi_flag(sbi, SBI_POR_DOING); |
1dbe4152 | 472 | |
55141486 | 473 | start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi); |
3c642985 | 474 | orphan_blocks = __start_sum_addr(sbi) - 1 - __cp_payload(sbi); |
127e670a | 475 | |
3c642985 | 476 | ra_meta_pages(sbi, start_blk, orphan_blocks, META_CP); |
662befda | 477 | |
3c642985 | 478 | for (i = 0; i < orphan_blocks; i++) { |
127e670a JK |
479 | struct page *page = get_meta_page(sbi, start_blk + i); |
480 | struct f2fs_orphan_block *orphan_blk; | |
481 | ||
482 | orphan_blk = (struct f2fs_orphan_block *)page_address(page); | |
483 | for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) { | |
484 | nid_t ino = le32_to_cpu(orphan_blk->ino[j]); | |
485 | recover_orphan_inode(sbi, ino); | |
486 | } | |
487 | f2fs_put_page(page, 1); | |
488 | } | |
489 | /* clear Orphan Flag */ | |
25ca923b | 490 | clear_ckpt_flags(F2FS_CKPT(sbi), CP_ORPHAN_PRESENT_FLAG); |
caf0047e | 491 | clear_sbi_flag(sbi, SBI_POR_DOING); |
8f99a946 | 492 | return; |
127e670a JK |
493 | } |
494 | ||
495 | static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk) | |
496 | { | |
502c6e0b | 497 | struct list_head *head; |
127e670a | 498 | struct f2fs_orphan_block *orphan_blk = NULL; |
127e670a | 499 | unsigned int nentries = 0; |
4531929e | 500 | unsigned short index; |
8c402946 | 501 | unsigned short orphan_blocks; |
4531929e | 502 | struct page *page = NULL; |
6451e041 | 503 | struct ino_entry *orphan = NULL; |
67298804 | 504 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a | 505 | |
67298804 | 506 | orphan_blocks = GET_ORPHAN_BLOCKS(im->ino_num); |
8c402946 | 507 | |
4531929e | 508 | for (index = 0; index < orphan_blocks; index++) |
63f5384c | 509 | grab_meta_page(sbi, start_blk + index); |
127e670a | 510 | |
4531929e | 511 | index = 1; |
67298804 CY |
512 | spin_lock(&im->ino_lock); |
513 | head = &im->ino_list; | |
127e670a JK |
514 | |
515 | /* loop for each orphan inode entry and write them in Jornal block */ | |
502c6e0b GZ |
516 | list_for_each_entry(orphan, head, list) { |
517 | if (!page) { | |
63f5384c | 518 | page = find_get_page(META_MAPPING(sbi), start_blk++); |
9850cf4a | 519 | f2fs_bug_on(sbi, !page); |
502c6e0b GZ |
520 | orphan_blk = |
521 | (struct f2fs_orphan_block *)page_address(page); | |
522 | memset(orphan_blk, 0, sizeof(*orphan_blk)); | |
63f5384c | 523 | f2fs_put_page(page, 0); |
502c6e0b | 524 | } |
127e670a | 525 | |
36795567 | 526 | orphan_blk->ino[nentries++] = cpu_to_le32(orphan->ino); |
127e670a | 527 | |
36795567 | 528 | if (nentries == F2FS_ORPHANS_PER_BLOCK) { |
127e670a JK |
529 | /* |
530 | * an orphan block is full of 1020 entries, | |
531 | * then we need to flush current orphan blocks | |
532 | * and bring another one in memory | |
533 | */ | |
534 | orphan_blk->blk_addr = cpu_to_le16(index); | |
535 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
536 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
537 | set_page_dirty(page); | |
538 | f2fs_put_page(page, 1); | |
539 | index++; | |
127e670a JK |
540 | nentries = 0; |
541 | page = NULL; | |
542 | } | |
502c6e0b | 543 | } |
127e670a | 544 | |
502c6e0b GZ |
545 | if (page) { |
546 | orphan_blk->blk_addr = cpu_to_le16(index); | |
547 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
548 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
549 | set_page_dirty(page); | |
550 | f2fs_put_page(page, 1); | |
127e670a | 551 | } |
502c6e0b | 552 | |
67298804 | 553 | spin_unlock(&im->ino_lock); |
127e670a JK |
554 | } |
555 | ||
556 | static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, | |
557 | block_t cp_addr, unsigned long long *version) | |
558 | { | |
559 | struct page *cp_page_1, *cp_page_2 = NULL; | |
560 | unsigned long blk_size = sbi->blocksize; | |
561 | struct f2fs_checkpoint *cp_block; | |
562 | unsigned long long cur_version = 0, pre_version = 0; | |
127e670a | 563 | size_t crc_offset; |
7e586fa0 | 564 | __u32 crc = 0; |
127e670a JK |
565 | |
566 | /* Read the 1st cp block in this CP pack */ | |
567 | cp_page_1 = get_meta_page(sbi, cp_addr); | |
568 | ||
569 | /* get the version number */ | |
570 | cp_block = (struct f2fs_checkpoint *)page_address(cp_page_1); | |
571 | crc_offset = le32_to_cpu(cp_block->checksum_offset); | |
572 | if (crc_offset >= blk_size) | |
573 | goto invalid_cp1; | |
574 | ||
29e7043f | 575 | crc = le32_to_cpu(*((__le32 *)((unsigned char *)cp_block + crc_offset))); |
127e670a JK |
576 | if (!f2fs_crc_valid(crc, cp_block, crc_offset)) |
577 | goto invalid_cp1; | |
578 | ||
d71b5564 | 579 | pre_version = cur_cp_version(cp_block); |
127e670a JK |
580 | |
581 | /* Read the 2nd cp block in this CP pack */ | |
25ca923b | 582 | cp_addr += le32_to_cpu(cp_block->cp_pack_total_block_count) - 1; |
127e670a JK |
583 | cp_page_2 = get_meta_page(sbi, cp_addr); |
584 | ||
585 | cp_block = (struct f2fs_checkpoint *)page_address(cp_page_2); | |
586 | crc_offset = le32_to_cpu(cp_block->checksum_offset); | |
587 | if (crc_offset >= blk_size) | |
588 | goto invalid_cp2; | |
589 | ||
29e7043f | 590 | crc = le32_to_cpu(*((__le32 *)((unsigned char *)cp_block + crc_offset))); |
127e670a JK |
591 | if (!f2fs_crc_valid(crc, cp_block, crc_offset)) |
592 | goto invalid_cp2; | |
593 | ||
d71b5564 | 594 | cur_version = cur_cp_version(cp_block); |
127e670a JK |
595 | |
596 | if (cur_version == pre_version) { | |
597 | *version = cur_version; | |
598 | f2fs_put_page(cp_page_2, 1); | |
599 | return cp_page_1; | |
600 | } | |
601 | invalid_cp2: | |
602 | f2fs_put_page(cp_page_2, 1); | |
603 | invalid_cp1: | |
604 | f2fs_put_page(cp_page_1, 1); | |
605 | return NULL; | |
606 | } | |
607 | ||
608 | int get_valid_checkpoint(struct f2fs_sb_info *sbi) | |
609 | { | |
610 | struct f2fs_checkpoint *cp_block; | |
611 | struct f2fs_super_block *fsb = sbi->raw_super; | |
612 | struct page *cp1, *cp2, *cur_page; | |
613 | unsigned long blk_size = sbi->blocksize; | |
614 | unsigned long long cp1_version = 0, cp2_version = 0; | |
615 | unsigned long long cp_start_blk_no; | |
55141486 | 616 | unsigned int cp_blks = 1 + __cp_payload(sbi); |
1dbe4152 CL |
617 | block_t cp_blk_no; |
618 | int i; | |
127e670a | 619 | |
1dbe4152 | 620 | sbi->ckpt = kzalloc(cp_blks * blk_size, GFP_KERNEL); |
127e670a JK |
621 | if (!sbi->ckpt) |
622 | return -ENOMEM; | |
623 | /* | |
624 | * Finding out valid cp block involves read both | |
625 | * sets( cp pack1 and cp pack 2) | |
626 | */ | |
627 | cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
628 | cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version); | |
629 | ||
630 | /* The second checkpoint pack should start at the next segment */ | |
f9a4e6df JK |
631 | cp_start_blk_no += ((unsigned long long)1) << |
632 | le32_to_cpu(fsb->log_blocks_per_seg); | |
127e670a JK |
633 | cp2 = validate_checkpoint(sbi, cp_start_blk_no, &cp2_version); |
634 | ||
635 | if (cp1 && cp2) { | |
636 | if (ver_after(cp2_version, cp1_version)) | |
637 | cur_page = cp2; | |
638 | else | |
639 | cur_page = cp1; | |
640 | } else if (cp1) { | |
641 | cur_page = cp1; | |
642 | } else if (cp2) { | |
643 | cur_page = cp2; | |
644 | } else { | |
645 | goto fail_no_cp; | |
646 | } | |
647 | ||
648 | cp_block = (struct f2fs_checkpoint *)page_address(cur_page); | |
649 | memcpy(sbi->ckpt, cp_block, blk_size); | |
650 | ||
1dbe4152 CL |
651 | if (cp_blks <= 1) |
652 | goto done; | |
653 | ||
654 | cp_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
655 | if (cur_page == cp2) | |
656 | cp_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg); | |
657 | ||
658 | for (i = 1; i < cp_blks; i++) { | |
659 | void *sit_bitmap_ptr; | |
660 | unsigned char *ckpt = (unsigned char *)sbi->ckpt; | |
661 | ||
662 | cur_page = get_meta_page(sbi, cp_blk_no + i); | |
663 | sit_bitmap_ptr = page_address(cur_page); | |
664 | memcpy(ckpt + i * blk_size, sit_bitmap_ptr, blk_size); | |
665 | f2fs_put_page(cur_page, 1); | |
666 | } | |
667 | done: | |
127e670a JK |
668 | f2fs_put_page(cp1, 1); |
669 | f2fs_put_page(cp2, 1); | |
670 | return 0; | |
671 | ||
672 | fail_no_cp: | |
673 | kfree(sbi->ckpt); | |
674 | return -EINVAL; | |
675 | } | |
676 | ||
06292073 | 677 | static int __add_dirty_inode(struct inode *inode, struct inode_entry *new) |
127e670a | 678 | { |
4081363f | 679 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
127e670a | 680 | |
ed57c27f JK |
681 | if (is_inode_flag_set(F2FS_I(inode), FI_DIRTY_DIR)) |
682 | return -EEXIST; | |
2d7b822a | 683 | |
ed57c27f JK |
684 | set_inode_flag(F2FS_I(inode), FI_DIRTY_DIR); |
685 | F2FS_I(inode)->dirty_dir = new; | |
686 | list_add_tail(&new->list, &sbi->dir_inode_list); | |
dcdfff65 | 687 | stat_inc_dirty_dir(sbi); |
5deb8267 JK |
688 | return 0; |
689 | } | |
690 | ||
a7ffdbe2 | 691 | void update_dirty_page(struct inode *inode, struct page *page) |
5deb8267 | 692 | { |
4081363f | 693 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
06292073 | 694 | struct inode_entry *new; |
cf0ee0f0 | 695 | int ret = 0; |
5deb8267 | 696 | |
a7ffdbe2 | 697 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode)) |
127e670a | 698 | return; |
7bd59381 | 699 | |
a7ffdbe2 JK |
700 | if (!S_ISDIR(inode->i_mode)) { |
701 | inode_inc_dirty_pages(inode); | |
702 | goto out; | |
703 | } | |
704 | ||
7bd59381 | 705 | new = f2fs_kmem_cache_alloc(inode_entry_slab, GFP_NOFS); |
127e670a JK |
706 | new->inode = inode; |
707 | INIT_LIST_HEAD(&new->list); | |
708 | ||
709 | spin_lock(&sbi->dir_inode_lock); | |
cf0ee0f0 | 710 | ret = __add_dirty_inode(inode, new); |
a7ffdbe2 | 711 | inode_inc_dirty_pages(inode); |
5deb8267 | 712 | spin_unlock(&sbi->dir_inode_lock); |
cf0ee0f0 CY |
713 | |
714 | if (ret) | |
715 | kmem_cache_free(inode_entry_slab, new); | |
a7ffdbe2 JK |
716 | out: |
717 | SetPagePrivate(page); | |
9e4ded3f | 718 | f2fs_trace_pid(page); |
5deb8267 JK |
719 | } |
720 | ||
721 | void add_dirty_dir_inode(struct inode *inode) | |
722 | { | |
4081363f | 723 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
06292073 | 724 | struct inode_entry *new = |
7bd59381 | 725 | f2fs_kmem_cache_alloc(inode_entry_slab, GFP_NOFS); |
cf0ee0f0 | 726 | int ret = 0; |
7bd59381 | 727 | |
5deb8267 JK |
728 | new->inode = inode; |
729 | INIT_LIST_HEAD(&new->list); | |
127e670a | 730 | |
5deb8267 | 731 | spin_lock(&sbi->dir_inode_lock); |
cf0ee0f0 | 732 | ret = __add_dirty_inode(inode, new); |
127e670a | 733 | spin_unlock(&sbi->dir_inode_lock); |
cf0ee0f0 CY |
734 | |
735 | if (ret) | |
736 | kmem_cache_free(inode_entry_slab, new); | |
127e670a JK |
737 | } |
738 | ||
739 | void remove_dirty_dir_inode(struct inode *inode) | |
740 | { | |
4081363f | 741 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
06292073 | 742 | struct inode_entry *entry; |
127e670a JK |
743 | |
744 | if (!S_ISDIR(inode->i_mode)) | |
745 | return; | |
746 | ||
747 | spin_lock(&sbi->dir_inode_lock); | |
a7ffdbe2 | 748 | if (get_dirty_pages(inode) || |
ed57c27f | 749 | !is_inode_flag_set(F2FS_I(inode), FI_DIRTY_DIR)) { |
3b10b1fd JK |
750 | spin_unlock(&sbi->dir_inode_lock); |
751 | return; | |
752 | } | |
127e670a | 753 | |
ed57c27f JK |
754 | entry = F2FS_I(inode)->dirty_dir; |
755 | list_del(&entry->list); | |
756 | F2FS_I(inode)->dirty_dir = NULL; | |
757 | clear_inode_flag(F2FS_I(inode), FI_DIRTY_DIR); | |
758 | stat_dec_dirty_dir(sbi); | |
127e670a | 759 | spin_unlock(&sbi->dir_inode_lock); |
ed57c27f | 760 | kmem_cache_free(inode_entry_slab, entry); |
74d0b917 JK |
761 | |
762 | /* Only from the recovery routine */ | |
afc3eda2 JK |
763 | if (is_inode_flag_set(F2FS_I(inode), FI_DELAY_IPUT)) { |
764 | clear_inode_flag(F2FS_I(inode), FI_DELAY_IPUT); | |
74d0b917 | 765 | iput(inode); |
afc3eda2 | 766 | } |
74d0b917 JK |
767 | } |
768 | ||
127e670a JK |
769 | void sync_dirty_dir_inodes(struct f2fs_sb_info *sbi) |
770 | { | |
ce3b7d80 | 771 | struct list_head *head; |
06292073 | 772 | struct inode_entry *entry; |
127e670a JK |
773 | struct inode *inode; |
774 | retry: | |
af41d3ee JK |
775 | if (unlikely(f2fs_cp_error(sbi))) |
776 | return; | |
777 | ||
127e670a | 778 | spin_lock(&sbi->dir_inode_lock); |
ce3b7d80 GZ |
779 | |
780 | head = &sbi->dir_inode_list; | |
127e670a JK |
781 | if (list_empty(head)) { |
782 | spin_unlock(&sbi->dir_inode_lock); | |
783 | return; | |
784 | } | |
06292073 | 785 | entry = list_entry(head->next, struct inode_entry, list); |
127e670a JK |
786 | inode = igrab(entry->inode); |
787 | spin_unlock(&sbi->dir_inode_lock); | |
788 | if (inode) { | |
87d6f890 | 789 | filemap_fdatawrite(inode->i_mapping); |
127e670a JK |
790 | iput(inode); |
791 | } else { | |
792 | /* | |
793 | * We should submit bio, since it exists several | |
794 | * wribacking dentry pages in the freeing inode. | |
795 | */ | |
458e6197 | 796 | f2fs_submit_merged_bio(sbi, DATA, WRITE); |
7ecebe5e | 797 | cond_resched(); |
127e670a JK |
798 | } |
799 | goto retry; | |
800 | } | |
801 | ||
0a8165d7 | 802 | /* |
127e670a JK |
803 | * Freeze all the FS-operations for checkpoint. |
804 | */ | |
cf779cab | 805 | static int block_operations(struct f2fs_sb_info *sbi) |
127e670a | 806 | { |
127e670a JK |
807 | struct writeback_control wbc = { |
808 | .sync_mode = WB_SYNC_ALL, | |
809 | .nr_to_write = LONG_MAX, | |
810 | .for_reclaim = 0, | |
811 | }; | |
c718379b | 812 | struct blk_plug plug; |
cf779cab | 813 | int err = 0; |
c718379b JK |
814 | |
815 | blk_start_plug(&plug); | |
816 | ||
39936837 | 817 | retry_flush_dents: |
e479556b | 818 | f2fs_lock_all(sbi); |
127e670a | 819 | /* write all the dirty dentry pages */ |
127e670a | 820 | if (get_pages(sbi, F2FS_DIRTY_DENTS)) { |
e479556b | 821 | f2fs_unlock_all(sbi); |
39936837 | 822 | sync_dirty_dir_inodes(sbi); |
cf779cab JK |
823 | if (unlikely(f2fs_cp_error(sbi))) { |
824 | err = -EIO; | |
825 | goto out; | |
826 | } | |
39936837 | 827 | goto retry_flush_dents; |
127e670a JK |
828 | } |
829 | ||
127e670a | 830 | /* |
e1c42045 | 831 | * POR: we should ensure that there are no dirty node pages |
127e670a JK |
832 | * until finishing nat/sit flush. |
833 | */ | |
39936837 | 834 | retry_flush_nodes: |
b3582c68 | 835 | down_write(&sbi->node_write); |
127e670a JK |
836 | |
837 | if (get_pages(sbi, F2FS_DIRTY_NODES)) { | |
b3582c68 | 838 | up_write(&sbi->node_write); |
39936837 | 839 | sync_node_pages(sbi, 0, &wbc); |
cf779cab JK |
840 | if (unlikely(f2fs_cp_error(sbi))) { |
841 | f2fs_unlock_all(sbi); | |
842 | err = -EIO; | |
843 | goto out; | |
844 | } | |
39936837 | 845 | goto retry_flush_nodes; |
127e670a | 846 | } |
cf779cab | 847 | out: |
c718379b | 848 | blk_finish_plug(&plug); |
cf779cab | 849 | return err; |
127e670a JK |
850 | } |
851 | ||
852 | static void unblock_operations(struct f2fs_sb_info *sbi) | |
853 | { | |
b3582c68 | 854 | up_write(&sbi->node_write); |
e479556b | 855 | f2fs_unlock_all(sbi); |
127e670a JK |
856 | } |
857 | ||
fb51b5ef CL |
858 | static void wait_on_all_pages_writeback(struct f2fs_sb_info *sbi) |
859 | { | |
860 | DEFINE_WAIT(wait); | |
861 | ||
862 | for (;;) { | |
863 | prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE); | |
864 | ||
865 | if (!get_pages(sbi, F2FS_WRITEBACK)) | |
866 | break; | |
867 | ||
868 | io_schedule(); | |
869 | } | |
870 | finish_wait(&sbi->cp_wait, &wait); | |
871 | } | |
872 | ||
75ab4cb8 | 873 | static void do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
874 | { |
875 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
cf2271e7 | 876 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_WARM_NODE); |
77041823 | 877 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
67298804 | 878 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num; |
77041823 | 879 | nid_t last_nid = nm_i->next_scan_nid; |
127e670a JK |
880 | block_t start_blk; |
881 | struct page *cp_page; | |
882 | unsigned int data_sum_blocks, orphan_blocks; | |
7e586fa0 | 883 | __u32 crc32 = 0; |
127e670a | 884 | void *kaddr; |
127e670a | 885 | int i; |
55141486 | 886 | int cp_payload_blks = __cp_payload(sbi); |
127e670a | 887 | |
1e87a78d JK |
888 | /* |
889 | * This avoids to conduct wrong roll-forward operations and uses | |
890 | * metapages, so should be called prior to sync_meta_pages below. | |
891 | */ | |
cf2271e7 | 892 | discard_next_dnode(sbi, NEXT_FREE_BLKADDR(sbi, curseg)); |
127e670a JK |
893 | |
894 | /* Flush all the NAT/SIT pages */ | |
cf779cab | 895 | while (get_pages(sbi, F2FS_DIRTY_META)) { |
127e670a | 896 | sync_meta_pages(sbi, META, LONG_MAX); |
cf779cab JK |
897 | if (unlikely(f2fs_cp_error(sbi))) |
898 | return; | |
899 | } | |
127e670a JK |
900 | |
901 | next_free_nid(sbi, &last_nid); | |
902 | ||
903 | /* | |
904 | * modify checkpoint | |
905 | * version number is already updated | |
906 | */ | |
907 | ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi)); | |
908 | ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi)); | |
909 | ckpt->free_segment_count = cpu_to_le32(free_segments(sbi)); | |
b5b82205 | 910 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
127e670a JK |
911 | ckpt->cur_node_segno[i] = |
912 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE)); | |
913 | ckpt->cur_node_blkoff[i] = | |
914 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_NODE)); | |
915 | ckpt->alloc_type[i + CURSEG_HOT_NODE] = | |
916 | curseg_alloc_type(sbi, i + CURSEG_HOT_NODE); | |
917 | } | |
b5b82205 | 918 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { |
127e670a JK |
919 | ckpt->cur_data_segno[i] = |
920 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA)); | |
921 | ckpt->cur_data_blkoff[i] = | |
922 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_DATA)); | |
923 | ckpt->alloc_type[i + CURSEG_HOT_DATA] = | |
924 | curseg_alloc_type(sbi, i + CURSEG_HOT_DATA); | |
925 | } | |
926 | ||
927 | ckpt->valid_node_count = cpu_to_le32(valid_node_count(sbi)); | |
928 | ckpt->valid_inode_count = cpu_to_le32(valid_inode_count(sbi)); | |
929 | ckpt->next_free_nid = cpu_to_le32(last_nid); | |
930 | ||
931 | /* 2 cp + n data seg summary + orphan inode blocks */ | |
3fa06d7b | 932 | data_sum_blocks = npages_for_summary_flush(sbi, false); |
b5b82205 | 933 | if (data_sum_blocks < NR_CURSEG_DATA_TYPE) |
25ca923b | 934 | set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
127e670a | 935 | else |
25ca923b | 936 | clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
127e670a | 937 | |
67298804 | 938 | orphan_blocks = GET_ORPHAN_BLOCKS(orphan_num); |
1dbe4152 CL |
939 | ckpt->cp_pack_start_sum = cpu_to_le32(1 + cp_payload_blks + |
940 | orphan_blocks); | |
127e670a | 941 | |
119ee914 | 942 | if (__remain_node_summaries(cpc->reason)) |
b5b82205 | 943 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS+ |
1dbe4152 CL |
944 | cp_payload_blks + data_sum_blocks + |
945 | orphan_blocks + NR_CURSEG_NODE_TYPE); | |
119ee914 | 946 | else |
b5b82205 | 947 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
1dbe4152 CL |
948 | cp_payload_blks + data_sum_blocks + |
949 | orphan_blocks); | |
119ee914 JK |
950 | |
951 | if (cpc->reason == CP_UMOUNT) | |
952 | set_ckpt_flags(ckpt, CP_UMOUNT_FLAG); | |
953 | else | |
954 | clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG); | |
955 | ||
956 | if (cpc->reason == CP_FASTBOOT) | |
957 | set_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); | |
958 | else | |
959 | clear_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); | |
127e670a | 960 | |
67298804 | 961 | if (orphan_num) |
25ca923b | 962 | set_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); |
127e670a | 963 | else |
25ca923b | 964 | clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); |
127e670a | 965 | |
caf0047e | 966 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) |
2ae4c673 JK |
967 | set_ckpt_flags(ckpt, CP_FSCK_FLAG); |
968 | ||
127e670a JK |
969 | /* update SIT/NAT bitmap */ |
970 | get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP)); | |
971 | get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP)); | |
972 | ||
973 | crc32 = f2fs_crc32(ckpt, le32_to_cpu(ckpt->checksum_offset)); | |
7e586fa0 JK |
974 | *((__le32 *)((unsigned char *)ckpt + |
975 | le32_to_cpu(ckpt->checksum_offset))) | |
127e670a JK |
976 | = cpu_to_le32(crc32); |
977 | ||
978 | start_blk = __start_cp_addr(sbi); | |
979 | ||
980 | /* write out checkpoint buffer at block 0 */ | |
981 | cp_page = grab_meta_page(sbi, start_blk++); | |
982 | kaddr = page_address(cp_page); | |
f7ef9b83 | 983 | memcpy(kaddr, ckpt, F2FS_BLKSIZE); |
127e670a JK |
984 | set_page_dirty(cp_page); |
985 | f2fs_put_page(cp_page, 1); | |
986 | ||
1dbe4152 CL |
987 | for (i = 1; i < 1 + cp_payload_blks; i++) { |
988 | cp_page = grab_meta_page(sbi, start_blk++); | |
989 | kaddr = page_address(cp_page); | |
f7ef9b83 | 990 | memcpy(kaddr, (char *)ckpt + i * F2FS_BLKSIZE, F2FS_BLKSIZE); |
1dbe4152 CL |
991 | set_page_dirty(cp_page); |
992 | f2fs_put_page(cp_page, 1); | |
993 | } | |
994 | ||
67298804 | 995 | if (orphan_num) { |
127e670a JK |
996 | write_orphan_inodes(sbi, start_blk); |
997 | start_blk += orphan_blocks; | |
998 | } | |
999 | ||
1000 | write_data_summaries(sbi, start_blk); | |
1001 | start_blk += data_sum_blocks; | |
119ee914 | 1002 | if (__remain_node_summaries(cpc->reason)) { |
127e670a JK |
1003 | write_node_summaries(sbi, start_blk); |
1004 | start_blk += NR_CURSEG_NODE_TYPE; | |
1005 | } | |
1006 | ||
1007 | /* writeout checkpoint block */ | |
1008 | cp_page = grab_meta_page(sbi, start_blk); | |
1009 | kaddr = page_address(cp_page); | |
f7ef9b83 | 1010 | memcpy(kaddr, ckpt, F2FS_BLKSIZE); |
127e670a JK |
1011 | set_page_dirty(cp_page); |
1012 | f2fs_put_page(cp_page, 1); | |
1013 | ||
1014 | /* wait for previous submitted node/meta pages writeback */ | |
fb51b5ef | 1015 | wait_on_all_pages_writeback(sbi); |
127e670a | 1016 | |
cf779cab JK |
1017 | if (unlikely(f2fs_cp_error(sbi))) |
1018 | return; | |
1019 | ||
4ef51a8f | 1020 | filemap_fdatawait_range(NODE_MAPPING(sbi), 0, LONG_MAX); |
9df27d98 | 1021 | filemap_fdatawait_range(META_MAPPING(sbi), 0, LONG_MAX); |
127e670a JK |
1022 | |
1023 | /* update user_block_counts */ | |
1024 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
1025 | sbi->alloc_valid_block_count = 0; | |
1026 | ||
1027 | /* Here, we only have one bio having CP pack */ | |
577e3495 | 1028 | sync_meta_pages(sbi, META_FLUSH, LONG_MAX); |
127e670a | 1029 | |
6a8f8ca5 JK |
1030 | /* wait for previous submitted meta pages writeback */ |
1031 | wait_on_all_pages_writeback(sbi); | |
1032 | ||
cf779cab JK |
1033 | release_dirty_inode(sbi); |
1034 | ||
1035 | if (unlikely(f2fs_cp_error(sbi))) | |
1036 | return; | |
1037 | ||
1038 | clear_prefree_segments(sbi); | |
caf0047e | 1039 | clear_sbi_flag(sbi, SBI_IS_DIRTY); |
127e670a JK |
1040 | } |
1041 | ||
0a8165d7 | 1042 | /* |
e1c42045 | 1043 | * We guarantee that this checkpoint procedure will not fail. |
127e670a | 1044 | */ |
75ab4cb8 | 1045 | void write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1046 | { |
1047 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1048 | unsigned long long ckpt_ver; | |
1049 | ||
43727527 | 1050 | mutex_lock(&sbi->cp_mutex); |
8501017e | 1051 | |
caf0047e | 1052 | if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) && |
10027551 | 1053 | (cpc->reason == CP_FASTBOOT || cpc->reason == CP_SYNC)) |
8501017e | 1054 | goto out; |
cf779cab JK |
1055 | if (unlikely(f2fs_cp_error(sbi))) |
1056 | goto out; | |
11504a8e JK |
1057 | if (f2fs_readonly(sbi->sb)) |
1058 | goto out; | |
2bda542d WL |
1059 | |
1060 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); | |
1061 | ||
cf779cab JK |
1062 | if (block_operations(sbi)) |
1063 | goto out; | |
127e670a | 1064 | |
75ab4cb8 | 1065 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish block_ops"); |
2af4bd6c | 1066 | |
458e6197 JK |
1067 | f2fs_submit_merged_bio(sbi, DATA, WRITE); |
1068 | f2fs_submit_merged_bio(sbi, NODE, WRITE); | |
1069 | f2fs_submit_merged_bio(sbi, META, WRITE); | |
127e670a JK |
1070 | |
1071 | /* | |
1072 | * update checkpoint pack index | |
1073 | * Increase the version number so that | |
1074 | * SIT entries and seg summaries are written at correct place | |
1075 | */ | |
d71b5564 | 1076 | ckpt_ver = cur_cp_version(ckpt); |
127e670a JK |
1077 | ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver); |
1078 | ||
1079 | /* write cached NAT/SIT entries to NAT/SIT area */ | |
1080 | flush_nat_entries(sbi); | |
4b2fecc8 | 1081 | flush_sit_entries(sbi, cpc); |
127e670a | 1082 | |
127e670a | 1083 | /* unlock all the fs_lock[] in do_checkpoint() */ |
75ab4cb8 | 1084 | do_checkpoint(sbi, cpc); |
127e670a JK |
1085 | |
1086 | unblock_operations(sbi); | |
942e0be6 | 1087 | stat_inc_cp_count(sbi->stat_info); |
10027551 JK |
1088 | |
1089 | if (cpc->reason == CP_RECOVERY) | |
1090 | f2fs_msg(sbi->sb, KERN_NOTICE, | |
1091 | "checkpoint: version = %llx", ckpt_ver); | |
8501017e JK |
1092 | out: |
1093 | mutex_unlock(&sbi->cp_mutex); | |
75ab4cb8 | 1094 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint"); |
127e670a JK |
1095 | } |
1096 | ||
6451e041 | 1097 | void init_ino_entry_info(struct f2fs_sb_info *sbi) |
127e670a | 1098 | { |
6451e041 JK |
1099 | int i; |
1100 | ||
1101 | for (i = 0; i < MAX_INO_ENTRY; i++) { | |
67298804 CY |
1102 | struct inode_management *im = &sbi->im[i]; |
1103 | ||
1104 | INIT_RADIX_TREE(&im->ino_root, GFP_ATOMIC); | |
1105 | spin_lock_init(&im->ino_lock); | |
1106 | INIT_LIST_HEAD(&im->ino_list); | |
1107 | im->ino_num = 0; | |
6451e041 JK |
1108 | } |
1109 | ||
b5b82205 | 1110 | sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS - |
14b42817 WL |
1111 | NR_CURSEG_TYPE - __cp_payload(sbi)) * |
1112 | F2FS_ORPHANS_PER_BLOCK; | |
127e670a JK |
1113 | } |
1114 | ||
6e6093a8 | 1115 | int __init create_checkpoint_caches(void) |
127e670a | 1116 | { |
6451e041 JK |
1117 | ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry", |
1118 | sizeof(struct ino_entry)); | |
1119 | if (!ino_entry_slab) | |
127e670a | 1120 | return -ENOMEM; |
06292073 CY |
1121 | inode_entry_slab = f2fs_kmem_cache_create("f2fs_inode_entry", |
1122 | sizeof(struct inode_entry)); | |
6bacf52f | 1123 | if (!inode_entry_slab) { |
6451e041 | 1124 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1125 | return -ENOMEM; |
1126 | } | |
1127 | return 0; | |
1128 | } | |
1129 | ||
1130 | void destroy_checkpoint_caches(void) | |
1131 | { | |
6451e041 | 1132 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1133 | kmem_cache_destroy(inode_entry_slab); |
1134 | } |