]>
Commit | Line | Data |
---|---|---|
7c1a000d | 1 | // SPDX-License-Identifier: GPL-2.0 |
0a8165d7 | 2 | /* |
127e670a JK |
3 | * fs/f2fs/checkpoint.c |
4 | * | |
5 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
6 | * http://www.samsung.com/ | |
127e670a JK |
7 | */ |
8 | #include <linux/fs.h> | |
9 | #include <linux/bio.h> | |
10 | #include <linux/mpage.h> | |
11 | #include <linux/writeback.h> | |
12 | #include <linux/blkdev.h> | |
13 | #include <linux/f2fs_fs.h> | |
14 | #include <linux/pagevec.h> | |
15 | #include <linux/swap.h> | |
16 | ||
17 | #include "f2fs.h" | |
18 | #include "node.h" | |
19 | #include "segment.h" | |
9e4ded3f | 20 | #include "trace.h" |
2af4bd6c | 21 | #include <trace/events/f2fs.h> |
127e670a | 22 | |
6451e041 | 23 | static struct kmem_cache *ino_entry_slab; |
4d57b86d | 24 | struct kmem_cache *f2fs_inode_entry_slab; |
127e670a | 25 | |
38f91ca8 JK |
26 | void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io) |
27 | { | |
d494500a | 28 | f2fs_build_fault_attr(sbi, 0, 0); |
aaec2b1d | 29 | set_ckpt_flags(sbi, CP_ERROR_FLAG); |
38f91ca8 | 30 | if (!end_io) |
b9109b0e | 31 | f2fs_flush_merged_writes(sbi); |
38f91ca8 JK |
32 | } |
33 | ||
0a8165d7 | 34 | /* |
127e670a JK |
35 | * We guarantee no failure on the returned page. |
36 | */ | |
4d57b86d | 37 | struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
127e670a | 38 | { |
9df27d98 | 39 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a JK |
40 | struct page *page = NULL; |
41 | repeat: | |
300e129c | 42 | page = f2fs_grab_cache_page(mapping, index, false); |
127e670a JK |
43 | if (!page) { |
44 | cond_resched(); | |
45 | goto repeat; | |
46 | } | |
bae0ee7a | 47 | f2fs_wait_on_page_writeback(page, META, true, true); |
237c0790 JK |
48 | if (!PageUptodate(page)) |
49 | SetPageUptodate(page); | |
127e670a JK |
50 | return page; |
51 | } | |
52 | ||
0a8165d7 | 53 | /* |
127e670a JK |
54 | * We guarantee no failure on the returned page. |
55 | */ | |
2b947003 CY |
56 | static struct page *__get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index, |
57 | bool is_meta) | |
127e670a | 58 | { |
9df27d98 | 59 | struct address_space *mapping = META_MAPPING(sbi); |
127e670a | 60 | struct page *page; |
cf04e8eb | 61 | struct f2fs_io_info fio = { |
05ca3632 | 62 | .sbi = sbi, |
cf04e8eb | 63 | .type = META, |
04d328de | 64 | .op = REQ_OP_READ, |
70fd7614 | 65 | .op_flags = REQ_META | REQ_PRIO, |
7a9d7548 CY |
66 | .old_blkaddr = index, |
67 | .new_blkaddr = index, | |
4375a336 | 68 | .encrypted_page = NULL, |
6dc3a126 | 69 | .is_por = !is_meta, |
cf04e8eb | 70 | }; |
7735730d | 71 | int err; |
2b947003 CY |
72 | |
73 | if (unlikely(!is_meta)) | |
04d328de | 74 | fio.op_flags &= ~REQ_META; |
127e670a | 75 | repeat: |
300e129c | 76 | page = f2fs_grab_cache_page(mapping, index, false); |
127e670a JK |
77 | if (!page) { |
78 | cond_resched(); | |
79 | goto repeat; | |
80 | } | |
393ff91f JK |
81 | if (PageUptodate(page)) |
82 | goto out; | |
83 | ||
05ca3632 JK |
84 | fio.page = page; |
85 | ||
7735730d CY |
86 | err = f2fs_submit_page_bio(&fio); |
87 | if (err) { | |
88 | f2fs_put_page(page, 1); | |
89 | return ERR_PTR(err); | |
86531d6b | 90 | } |
127e670a | 91 | |
393ff91f | 92 | lock_page(page); |
6bacf52f | 93 | if (unlikely(page->mapping != mapping)) { |
afcb7ca0 JK |
94 | f2fs_put_page(page, 1); |
95 | goto repeat; | |
96 | } | |
f3f338ca | 97 | |
81114baa | 98 | if (unlikely(!PageUptodate(page))) { |
7735730d CY |
99 | f2fs_put_page(page, 1); |
100 | return ERR_PTR(-EIO); | |
81114baa | 101 | } |
393ff91f | 102 | out: |
127e670a JK |
103 | return page; |
104 | } | |
105 | ||
4d57b86d | 106 | struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index) |
2b947003 CY |
107 | { |
108 | return __get_meta_page(sbi, index, true); | |
109 | } | |
110 | ||
7735730d CY |
111 | struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index) |
112 | { | |
113 | struct page *page; | |
114 | int count = 0; | |
115 | ||
116 | retry: | |
117 | page = __get_meta_page(sbi, index, true); | |
118 | if (IS_ERR(page)) { | |
119 | if (PTR_ERR(page) == -EIO && | |
120 | ++count <= DEFAULT_RETRY_IO_COUNT) | |
121 | goto retry; | |
7735730d | 122 | f2fs_stop_checkpoint(sbi, false); |
7735730d | 123 | } |
7735730d CY |
124 | return page; |
125 | } | |
126 | ||
2b947003 | 127 | /* for POR only */ |
4d57b86d | 128 | struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index) |
2b947003 CY |
129 | { |
130 | return __get_meta_page(sbi, index, false); | |
131 | } | |
132 | ||
93770ab7 CY |
133 | static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr, |
134 | int type) | |
135 | { | |
136 | struct seg_entry *se; | |
137 | unsigned int segno, offset; | |
138 | bool exist; | |
139 | ||
140 | if (type != DATA_GENERIC_ENHANCE && type != DATA_GENERIC_ENHANCE_READ) | |
141 | return true; | |
142 | ||
143 | segno = GET_SEGNO(sbi, blkaddr); | |
144 | offset = GET_BLKOFF_FROM_SEG0(sbi, blkaddr); | |
145 | se = get_seg_entry(sbi, segno); | |
146 | ||
147 | exist = f2fs_test_bit(offset, se->cur_valid_map); | |
148 | if (!exist && type == DATA_GENERIC_ENHANCE) { | |
dcbb4c10 JP |
149 | f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d", |
150 | blkaddr, exist); | |
93770ab7 CY |
151 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
152 | WARN_ON(1); | |
153 | } | |
154 | return exist; | |
155 | } | |
156 | ||
e1da7872 | 157 | bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, |
4d57b86d | 158 | block_t blkaddr, int type) |
662befda CY |
159 | { |
160 | switch (type) { | |
161 | case META_NAT: | |
66b00c18 | 162 | break; |
662befda | 163 | case META_SIT: |
66b00c18 CY |
164 | if (unlikely(blkaddr >= SIT_BLK_CNT(sbi))) |
165 | return false; | |
166 | break; | |
81c1a0f1 | 167 | case META_SSA: |
66b00c18 CY |
168 | if (unlikely(blkaddr >= MAIN_BLKADDR(sbi) || |
169 | blkaddr < SM_I(sbi)->ssa_blkaddr)) | |
170 | return false; | |
171 | break; | |
662befda | 172 | case META_CP: |
66b00c18 CY |
173 | if (unlikely(blkaddr >= SIT_I(sbi)->sit_base_addr || |
174 | blkaddr < __start_cp_addr(sbi))) | |
175 | return false; | |
176 | break; | |
4c521f49 | 177 | case META_POR: |
93770ab7 CY |
178 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
179 | blkaddr < MAIN_BLKADDR(sbi))) | |
180 | return false; | |
181 | break; | |
e1da7872 | 182 | case DATA_GENERIC: |
93770ab7 CY |
183 | case DATA_GENERIC_ENHANCE: |
184 | case DATA_GENERIC_ENHANCE_READ: | |
66b00c18 | 185 | if (unlikely(blkaddr >= MAX_BLKADDR(sbi) || |
93770ab7 | 186 | blkaddr < MAIN_BLKADDR(sbi))) { |
dcbb4c10 JP |
187 | f2fs_warn(sbi, "access invalid blkaddr:%u", |
188 | blkaddr); | |
93770ab7 CY |
189 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
190 | WARN_ON(1); | |
66b00c18 | 191 | return false; |
93770ab7 CY |
192 | } else { |
193 | return __is_bitmap_valid(sbi, blkaddr, type); | |
c9b60788 | 194 | } |
66b00c18 | 195 | break; |
e1da7872 CY |
196 | case META_GENERIC: |
197 | if (unlikely(blkaddr < SEG0_BLKADDR(sbi) || | |
198 | blkaddr >= MAIN_BLKADDR(sbi))) | |
199 | return false; | |
200 | break; | |
662befda CY |
201 | default: |
202 | BUG(); | |
203 | } | |
66b00c18 CY |
204 | |
205 | return true; | |
662befda CY |
206 | } |
207 | ||
208 | /* | |
81c1a0f1 | 209 | * Readahead CP/NAT/SIT/SSA pages |
662befda | 210 | */ |
4d57b86d | 211 | int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, |
26879fb1 | 212 | int type, bool sync) |
662befda | 213 | { |
662befda | 214 | struct page *page; |
4c521f49 | 215 | block_t blkno = start; |
662befda | 216 | struct f2fs_io_info fio = { |
05ca3632 | 217 | .sbi = sbi, |
662befda | 218 | .type = META, |
04d328de | 219 | .op = REQ_OP_READ, |
70fd7614 | 220 | .op_flags = sync ? (REQ_META | REQ_PRIO) : REQ_RAHEAD, |
4375a336 | 221 | .encrypted_page = NULL, |
fb830fc5 | 222 | .in_list = false, |
6dc3a126 | 223 | .is_por = (type == META_POR), |
662befda | 224 | }; |
e9f5b8b8 | 225 | struct blk_plug plug; |
662befda | 226 | |
2b947003 | 227 | if (unlikely(type == META_POR)) |
04d328de | 228 | fio.op_flags &= ~REQ_META; |
2b947003 | 229 | |
e9f5b8b8 | 230 | blk_start_plug(&plug); |
662befda | 231 | for (; nrpages-- > 0; blkno++) { |
662befda | 232 | |
e1da7872 | 233 | if (!f2fs_is_valid_blkaddr(sbi, blkno, type)) |
66b00c18 CY |
234 | goto out; |
235 | ||
662befda CY |
236 | switch (type) { |
237 | case META_NAT: | |
66b00c18 CY |
238 | if (unlikely(blkno >= |
239 | NAT_BLOCK_OFFSET(NM_I(sbi)->max_nid))) | |
662befda | 240 | blkno = 0; |
66b00c18 | 241 | /* get nat block addr */ |
7a9d7548 | 242 | fio.new_blkaddr = current_nat_addr(sbi, |
662befda CY |
243 | blkno * NAT_ENTRY_PER_BLOCK); |
244 | break; | |
245 | case META_SIT: | |
246 | /* get sit block addr */ | |
7a9d7548 | 247 | fio.new_blkaddr = current_sit_addr(sbi, |
662befda | 248 | blkno * SIT_ENTRY_PER_BLOCK); |
662befda | 249 | break; |
81c1a0f1 | 250 | case META_SSA: |
662befda | 251 | case META_CP: |
4c521f49 | 252 | case META_POR: |
7a9d7548 | 253 | fio.new_blkaddr = blkno; |
662befda CY |
254 | break; |
255 | default: | |
256 | BUG(); | |
257 | } | |
258 | ||
300e129c JK |
259 | page = f2fs_grab_cache_page(META_MAPPING(sbi), |
260 | fio.new_blkaddr, false); | |
662befda CY |
261 | if (!page) |
262 | continue; | |
263 | if (PageUptodate(page)) { | |
662befda CY |
264 | f2fs_put_page(page, 1); |
265 | continue; | |
266 | } | |
267 | ||
05ca3632 | 268 | fio.page = page; |
1919ffc0 | 269 | f2fs_submit_page_bio(&fio); |
662befda CY |
270 | f2fs_put_page(page, 0); |
271 | } | |
272 | out: | |
e9f5b8b8 | 273 | blk_finish_plug(&plug); |
662befda CY |
274 | return blkno - start; |
275 | } | |
276 | ||
4d57b86d | 277 | void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index) |
635aee1f CY |
278 | { |
279 | struct page *page; | |
280 | bool readahead = false; | |
281 | ||
282 | page = find_get_page(META_MAPPING(sbi), index); | |
4da7bf5a | 283 | if (!page || !PageUptodate(page)) |
635aee1f CY |
284 | readahead = true; |
285 | f2fs_put_page(page, 0); | |
286 | ||
287 | if (readahead) | |
4d57b86d | 288 | f2fs_ra_meta_pages(sbi, index, BIO_MAX_PAGES, META_POR, true); |
635aee1f CY |
289 | } |
290 | ||
b0af6d49 CY |
291 | static int __f2fs_write_meta_page(struct page *page, |
292 | struct writeback_control *wbc, | |
293 | enum iostat_type io_type) | |
127e670a | 294 | { |
4081363f | 295 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
127e670a | 296 | |
ecda0de3 CY |
297 | trace_f2fs_writepage(page, META); |
298 | ||
af697c0f JK |
299 | if (unlikely(f2fs_cp_error(sbi))) |
300 | goto redirty_out; | |
caf0047e | 301 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
cfb271d4 | 302 | goto redirty_out; |
857dc4e0 | 303 | if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0)) |
cfb271d4 | 304 | goto redirty_out; |
127e670a | 305 | |
4d57b86d | 306 | f2fs_do_write_meta_page(sbi, page, io_type); |
577e3495 | 307 | dec_page_count(sbi, F2FS_DIRTY_META); |
0c3a5797 CY |
308 | |
309 | if (wbc->for_reclaim) | |
bab475c5 | 310 | f2fs_submit_merged_write_cond(sbi, NULL, page, 0, META); |
0c3a5797 | 311 | |
577e3495 | 312 | unlock_page(page); |
857dc4e0 | 313 | |
0c3a5797 | 314 | if (unlikely(f2fs_cp_error(sbi))) |
b9109b0e | 315 | f2fs_submit_merged_write(sbi, META); |
0c3a5797 | 316 | |
577e3495 | 317 | return 0; |
cfb271d4 CY |
318 | |
319 | redirty_out: | |
76f60268 | 320 | redirty_page_for_writepage(wbc, page); |
cfb271d4 | 321 | return AOP_WRITEPAGE_ACTIVATE; |
127e670a JK |
322 | } |
323 | ||
b0af6d49 CY |
324 | static int f2fs_write_meta_page(struct page *page, |
325 | struct writeback_control *wbc) | |
326 | { | |
327 | return __f2fs_write_meta_page(page, wbc, FS_META_IO); | |
328 | } | |
329 | ||
127e670a JK |
330 | static int f2fs_write_meta_pages(struct address_space *mapping, |
331 | struct writeback_control *wbc) | |
332 | { | |
4081363f | 333 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
50c8cdb3 | 334 | long diff, written; |
127e670a | 335 | |
0771fcc7 CY |
336 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
337 | goto skip_write; | |
338 | ||
5459aa97 | 339 | /* collect a number of dirty meta pages and write together */ |
812a9597 JK |
340 | if (wbc->sync_mode != WB_SYNC_ALL && |
341 | get_pages(sbi, F2FS_DIRTY_META) < | |
342 | nr_pages_to_skip(sbi, META)) | |
d3baf95d | 343 | goto skip_write; |
127e670a | 344 | |
a29d0e0b YH |
345 | /* if locked failed, cp will flush dirty pages instead */ |
346 | if (!mutex_trylock(&sbi->cp_mutex)) | |
347 | goto skip_write; | |
d31c7c3f | 348 | |
a29d0e0b | 349 | trace_f2fs_writepages(mapping->host, wbc, META); |
50c8cdb3 | 350 | diff = nr_pages_to_write(sbi, META, wbc); |
4d57b86d | 351 | written = f2fs_sync_meta_pages(sbi, META, wbc->nr_to_write, FS_META_IO); |
127e670a | 352 | mutex_unlock(&sbi->cp_mutex); |
50c8cdb3 | 353 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff); |
127e670a | 354 | return 0; |
d3baf95d JK |
355 | |
356 | skip_write: | |
357 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_META); | |
d31c7c3f | 358 | trace_f2fs_writepages(mapping->host, wbc, META); |
d3baf95d | 359 | return 0; |
127e670a JK |
360 | } |
361 | ||
4d57b86d | 362 | long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, |
b0af6d49 | 363 | long nr_to_write, enum iostat_type io_type) |
127e670a | 364 | { |
9df27d98 | 365 | struct address_space *mapping = META_MAPPING(sbi); |
028a63a6 | 366 | pgoff_t index = 0, prev = ULONG_MAX; |
127e670a JK |
367 | struct pagevec pvec; |
368 | long nwritten = 0; | |
028a63a6 | 369 | int nr_pages; |
127e670a JK |
370 | struct writeback_control wbc = { |
371 | .for_reclaim = 0, | |
372 | }; | |
e9f5b8b8 | 373 | struct blk_plug plug; |
127e670a | 374 | |
86679820 | 375 | pagevec_init(&pvec); |
127e670a | 376 | |
e9f5b8b8 CY |
377 | blk_start_plug(&plug); |
378 | ||
028a63a6 | 379 | while ((nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, |
67fd707f | 380 | PAGECACHE_TAG_DIRTY))) { |
028a63a6 | 381 | int i; |
127e670a JK |
382 | |
383 | for (i = 0; i < nr_pages; i++) { | |
384 | struct page *page = pvec.pages[i]; | |
203681f6 | 385 | |
80dd9c0e | 386 | if (prev == ULONG_MAX) |
6066d8cd JK |
387 | prev = page->index - 1; |
388 | if (nr_to_write != LONG_MAX && page->index != prev + 1) { | |
389 | pagevec_release(&pvec); | |
390 | goto stop; | |
391 | } | |
392 | ||
127e670a | 393 | lock_page(page); |
203681f6 JK |
394 | |
395 | if (unlikely(page->mapping != mapping)) { | |
396 | continue_unlock: | |
397 | unlock_page(page); | |
398 | continue; | |
399 | } | |
400 | if (!PageDirty(page)) { | |
401 | /* someone wrote it for us */ | |
402 | goto continue_unlock; | |
403 | } | |
404 | ||
bae0ee7a | 405 | f2fs_wait_on_page_writeback(page, META, true, true); |
fa3d2bdf | 406 | |
203681f6 JK |
407 | if (!clear_page_dirty_for_io(page)) |
408 | goto continue_unlock; | |
409 | ||
b0af6d49 | 410 | if (__f2fs_write_meta_page(page, &wbc, io_type)) { |
577e3495 JK |
411 | unlock_page(page); |
412 | break; | |
413 | } | |
cfb271d4 | 414 | nwritten++; |
6066d8cd | 415 | prev = page->index; |
cfb271d4 | 416 | if (unlikely(nwritten >= nr_to_write)) |
127e670a JK |
417 | break; |
418 | } | |
419 | pagevec_release(&pvec); | |
420 | cond_resched(); | |
421 | } | |
6066d8cd | 422 | stop: |
127e670a | 423 | if (nwritten) |
b9109b0e | 424 | f2fs_submit_merged_write(sbi, type); |
127e670a | 425 | |
e9f5b8b8 CY |
426 | blk_finish_plug(&plug); |
427 | ||
127e670a JK |
428 | return nwritten; |
429 | } | |
430 | ||
431 | static int f2fs_set_meta_page_dirty(struct page *page) | |
432 | { | |
26c6b887 JK |
433 | trace_f2fs_set_page_dirty(page, META); |
434 | ||
237c0790 JK |
435 | if (!PageUptodate(page)) |
436 | SetPageUptodate(page); | |
127e670a | 437 | if (!PageDirty(page)) { |
b87078ad | 438 | __set_page_dirty_nobuffers(page); |
4081363f | 439 | inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_META); |
240a5915 | 440 | f2fs_set_page_private(page, 0); |
9e4ded3f | 441 | f2fs_trace_pid(page); |
127e670a JK |
442 | return 1; |
443 | } | |
444 | return 0; | |
445 | } | |
446 | ||
447 | const struct address_space_operations f2fs_meta_aops = { | |
448 | .writepage = f2fs_write_meta_page, | |
449 | .writepages = f2fs_write_meta_pages, | |
450 | .set_page_dirty = f2fs_set_meta_page_dirty, | |
487261f3 CY |
451 | .invalidatepage = f2fs_invalidate_page, |
452 | .releasepage = f2fs_release_page, | |
5b7a487c WG |
453 | #ifdef CONFIG_MIGRATION |
454 | .migratepage = f2fs_migrate_page, | |
455 | #endif | |
127e670a JK |
456 | }; |
457 | ||
39d787be CY |
458 | static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, |
459 | unsigned int devidx, int type) | |
953e6cc6 | 460 | { |
67298804 | 461 | struct inode_management *im = &sbi->im[type]; |
80c54505 JK |
462 | struct ino_entry *e, *tmp; |
463 | ||
464 | tmp = f2fs_kmem_cache_alloc(ino_entry_slab, GFP_NOFS); | |
19526d74 | 465 | |
80c54505 | 466 | radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); |
769ec6e5 | 467 | |
67298804 | 468 | spin_lock(&im->ino_lock); |
67298804 | 469 | e = radix_tree_lookup(&im->ino_root, ino); |
39efac41 | 470 | if (!e) { |
80c54505 | 471 | e = tmp; |
19526d74 CY |
472 | if (unlikely(radix_tree_insert(&im->ino_root, ino, e))) |
473 | f2fs_bug_on(sbi, 1); | |
474 | ||
39efac41 JK |
475 | memset(e, 0, sizeof(struct ino_entry)); |
476 | e->ino = ino; | |
953e6cc6 | 477 | |
67298804 | 478 | list_add_tail(&e->list, &im->ino_list); |
8c402946 | 479 | if (type != ORPHAN_INO) |
67298804 | 480 | im->ino_num++; |
39efac41 | 481 | } |
39d787be CY |
482 | |
483 | if (type == FLUSH_INO) | |
484 | f2fs_set_bit(devidx, (char *)&e->dirty_device); | |
485 | ||
67298804 | 486 | spin_unlock(&im->ino_lock); |
769ec6e5 | 487 | radix_tree_preload_end(); |
80c54505 JK |
488 | |
489 | if (e != tmp) | |
490 | kmem_cache_free(ino_entry_slab, tmp); | |
953e6cc6 JK |
491 | } |
492 | ||
6451e041 | 493 | static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
953e6cc6 | 494 | { |
67298804 | 495 | struct inode_management *im = &sbi->im[type]; |
6451e041 | 496 | struct ino_entry *e; |
953e6cc6 | 497 | |
67298804 CY |
498 | spin_lock(&im->ino_lock); |
499 | e = radix_tree_lookup(&im->ino_root, ino); | |
39efac41 JK |
500 | if (e) { |
501 | list_del(&e->list); | |
67298804 CY |
502 | radix_tree_delete(&im->ino_root, ino); |
503 | im->ino_num--; | |
504 | spin_unlock(&im->ino_lock); | |
39efac41 JK |
505 | kmem_cache_free(ino_entry_slab, e); |
506 | return; | |
953e6cc6 | 507 | } |
67298804 | 508 | spin_unlock(&im->ino_lock); |
953e6cc6 JK |
509 | } |
510 | ||
4d57b86d | 511 | void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
512 | { |
513 | /* add new dirty ino entry into list */ | |
39d787be | 514 | __add_ino_entry(sbi, ino, 0, type); |
fff04f90 JK |
515 | } |
516 | ||
4d57b86d | 517 | void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type) |
fff04f90 JK |
518 | { |
519 | /* remove dirty ino entry from list */ | |
520 | __remove_ino_entry(sbi, ino, type); | |
521 | } | |
522 | ||
523 | /* mode should be APPEND_INO or UPDATE_INO */ | |
4d57b86d | 524 | bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode) |
fff04f90 | 525 | { |
67298804 | 526 | struct inode_management *im = &sbi->im[mode]; |
fff04f90 | 527 | struct ino_entry *e; |
67298804 CY |
528 | |
529 | spin_lock(&im->ino_lock); | |
530 | e = radix_tree_lookup(&im->ino_root, ino); | |
531 | spin_unlock(&im->ino_lock); | |
fff04f90 JK |
532 | return e ? true : false; |
533 | } | |
534 | ||
4d57b86d | 535 | void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all) |
fff04f90 JK |
536 | { |
537 | struct ino_entry *e, *tmp; | |
538 | int i; | |
539 | ||
39d787be | 540 | for (i = all ? ORPHAN_INO : APPEND_INO; i < MAX_INO_ENTRY; i++) { |
67298804 CY |
541 | struct inode_management *im = &sbi->im[i]; |
542 | ||
543 | spin_lock(&im->ino_lock); | |
544 | list_for_each_entry_safe(e, tmp, &im->ino_list, list) { | |
fff04f90 | 545 | list_del(&e->list); |
67298804 | 546 | radix_tree_delete(&im->ino_root, e->ino); |
fff04f90 | 547 | kmem_cache_free(ino_entry_slab, e); |
67298804 | 548 | im->ino_num--; |
fff04f90 | 549 | } |
67298804 | 550 | spin_unlock(&im->ino_lock); |
fff04f90 JK |
551 | } |
552 | } | |
553 | ||
4d57b86d | 554 | void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
39d787be CY |
555 | unsigned int devidx, int type) |
556 | { | |
557 | __add_ino_entry(sbi, ino, devidx, type); | |
558 | } | |
559 | ||
4d57b86d | 560 | bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, |
39d787be CY |
561 | unsigned int devidx, int type) |
562 | { | |
563 | struct inode_management *im = &sbi->im[type]; | |
564 | struct ino_entry *e; | |
565 | bool is_dirty = false; | |
566 | ||
567 | spin_lock(&im->ino_lock); | |
568 | e = radix_tree_lookup(&im->ino_root, ino); | |
569 | if (e && f2fs_test_bit(devidx, (char *)&e->dirty_device)) | |
570 | is_dirty = true; | |
571 | spin_unlock(&im->ino_lock); | |
572 | return is_dirty; | |
573 | } | |
574 | ||
4d57b86d | 575 | int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi) |
127e670a | 576 | { |
67298804 | 577 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a JK |
578 | int err = 0; |
579 | ||
67298804 | 580 | spin_lock(&im->ino_lock); |
cb78942b | 581 | |
1ecc0c5c | 582 | if (time_to_inject(sbi, FAULT_ORPHAN)) { |
cb78942b | 583 | spin_unlock(&im->ino_lock); |
c45d6002 | 584 | f2fs_show_injection_info(sbi, FAULT_ORPHAN); |
cb78942b JK |
585 | return -ENOSPC; |
586 | } | |
7fa750a1 | 587 | |
67298804 | 588 | if (unlikely(im->ino_num >= sbi->max_orphans)) |
127e670a | 589 | err = -ENOSPC; |
cbd56e7d | 590 | else |
67298804 CY |
591 | im->ino_num++; |
592 | spin_unlock(&im->ino_lock); | |
0d47c1ad | 593 | |
127e670a JK |
594 | return err; |
595 | } | |
596 | ||
4d57b86d | 597 | void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi) |
cbd56e7d | 598 | { |
67298804 CY |
599 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
600 | ||
601 | spin_lock(&im->ino_lock); | |
602 | f2fs_bug_on(sbi, im->ino_num == 0); | |
603 | im->ino_num--; | |
604 | spin_unlock(&im->ino_lock); | |
cbd56e7d JK |
605 | } |
606 | ||
4d57b86d | 607 | void f2fs_add_orphan_inode(struct inode *inode) |
127e670a | 608 | { |
39efac41 | 609 | /* add new orphan ino entry into list */ |
39d787be | 610 | __add_ino_entry(F2FS_I_SB(inode), inode->i_ino, 0, ORPHAN_INO); |
4d57b86d | 611 | f2fs_update_inode_page(inode); |
127e670a JK |
612 | } |
613 | ||
4d57b86d | 614 | void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 615 | { |
953e6cc6 | 616 | /* remove orphan entry from orphan list */ |
6451e041 | 617 | __remove_ino_entry(sbi, ino, ORPHAN_INO); |
127e670a JK |
618 | } |
619 | ||
8c14bfad | 620 | static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino) |
127e670a | 621 | { |
8c14bfad | 622 | struct inode *inode; |
5905f9af | 623 | struct node_info ni; |
76a45e3c | 624 | int err; |
8c14bfad | 625 | |
5905f9af | 626 | inode = f2fs_iget_retry(sbi->sb, ino); |
8c14bfad CY |
627 | if (IS_ERR(inode)) { |
628 | /* | |
629 | * there should be a bug that we can't find the entry | |
630 | * to orphan inode. | |
631 | */ | |
632 | f2fs_bug_on(sbi, PTR_ERR(inode) == -ENOENT); | |
633 | return PTR_ERR(inode); | |
634 | } | |
635 | ||
0f9ec2a8 | 636 | err = dquot_initialize(inode); |
a515d12f SY |
637 | if (err) { |
638 | iput(inode); | |
0f9ec2a8 | 639 | goto err_out; |
a515d12f | 640 | } |
0f9ec2a8 | 641 | |
127e670a JK |
642 | clear_nlink(inode); |
643 | ||
644 | /* truncate all the data during iput */ | |
645 | iput(inode); | |
5905f9af | 646 | |
7735730d CY |
647 | err = f2fs_get_node_info(sbi, ino, &ni); |
648 | if (err) | |
649 | goto err_out; | |
5905f9af JK |
650 | |
651 | /* ENOMEM was fully retried in f2fs_evict_inode. */ | |
652 | if (ni.blk_addr != NULL_ADDR) { | |
0f9ec2a8 JK |
653 | err = -EIO; |
654 | goto err_out; | |
5905f9af | 655 | } |
8c14bfad | 656 | return 0; |
0f9ec2a8 JK |
657 | |
658 | err_out: | |
659 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
dcbb4c10 JP |
660 | f2fs_warn(sbi, "%s: orphan failed (ino=%x), run fsck to fix.", |
661 | __func__, ino); | |
0f9ec2a8 | 662 | return err; |
127e670a JK |
663 | } |
664 | ||
4d57b86d | 665 | int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi) |
127e670a | 666 | { |
3c642985 | 667 | block_t start_blk, orphan_blocks, i, j; |
4b2414d0 CY |
668 | unsigned int s_flags = sbi->sb->s_flags; |
669 | int err = 0; | |
ea676733 JK |
670 | #ifdef CONFIG_QUOTA |
671 | int quota_enabled; | |
672 | #endif | |
127e670a | 673 | |
aaec2b1d | 674 | if (!is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG)) |
8c14bfad | 675 | return 0; |
127e670a | 676 | |
b61af314 | 677 | if (bdev_read_only(sbi->sb->s_bdev)) { |
dcbb4c10 | 678 | f2fs_info(sbi, "write access unavailable, skipping orphan cleanup"); |
b61af314 CY |
679 | return 0; |
680 | } | |
681 | ||
1751e8a6 | 682 | if (s_flags & SB_RDONLY) { |
dcbb4c10 | 683 | f2fs_info(sbi, "orphan cleanup on readonly fs"); |
1751e8a6 | 684 | sbi->sb->s_flags &= ~SB_RDONLY; |
4b2414d0 CY |
685 | } |
686 | ||
687 | #ifdef CONFIG_QUOTA | |
688 | /* Needed for iput() to work correctly and not trash data */ | |
1751e8a6 | 689 | sbi->sb->s_flags |= SB_ACTIVE; |
ea676733 | 690 | |
76cf05d7 SY |
691 | /* |
692 | * Turn on quotas which were not enabled for read-only mounts if | |
693 | * filesystem has quota feature, so that they are updated correctly. | |
694 | */ | |
1751e8a6 | 695 | quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY); |
4b2414d0 CY |
696 | #endif |
697 | ||
55141486 | 698 | start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi); |
3c642985 | 699 | orphan_blocks = __start_sum_addr(sbi) - 1 - __cp_payload(sbi); |
127e670a | 700 | |
4d57b86d | 701 | f2fs_ra_meta_pages(sbi, start_blk, orphan_blocks, META_CP, true); |
662befda | 702 | |
3c642985 | 703 | for (i = 0; i < orphan_blocks; i++) { |
7735730d | 704 | struct page *page; |
127e670a JK |
705 | struct f2fs_orphan_block *orphan_blk; |
706 | ||
7735730d CY |
707 | page = f2fs_get_meta_page(sbi, start_blk + i); |
708 | if (IS_ERR(page)) { | |
709 | err = PTR_ERR(page); | |
710 | goto out; | |
711 | } | |
712 | ||
127e670a JK |
713 | orphan_blk = (struct f2fs_orphan_block *)page_address(page); |
714 | for (j = 0; j < le32_to_cpu(orphan_blk->entry_count); j++) { | |
715 | nid_t ino = le32_to_cpu(orphan_blk->ino[j]); | |
8c14bfad CY |
716 | err = recover_orphan_inode(sbi, ino); |
717 | if (err) { | |
718 | f2fs_put_page(page, 1); | |
4b2414d0 | 719 | goto out; |
8c14bfad | 720 | } |
127e670a JK |
721 | } |
722 | f2fs_put_page(page, 1); | |
723 | } | |
724 | /* clear Orphan Flag */ | |
aaec2b1d | 725 | clear_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG); |
4b2414d0 | 726 | out: |
1378752b CY |
727 | set_sbi_flag(sbi, SBI_IS_RECOVERED); |
728 | ||
4b2414d0 CY |
729 | #ifdef CONFIG_QUOTA |
730 | /* Turn quotas off */ | |
ea676733 JK |
731 | if (quota_enabled) |
732 | f2fs_quota_off_umount(sbi->sb); | |
4b2414d0 | 733 | #endif |
1751e8a6 | 734 | sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */ |
4b2414d0 CY |
735 | |
736 | return err; | |
127e670a JK |
737 | } |
738 | ||
739 | static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk) | |
740 | { | |
502c6e0b | 741 | struct list_head *head; |
127e670a | 742 | struct f2fs_orphan_block *orphan_blk = NULL; |
127e670a | 743 | unsigned int nentries = 0; |
bd936f84 | 744 | unsigned short index = 1; |
8c402946 | 745 | unsigned short orphan_blocks; |
4531929e | 746 | struct page *page = NULL; |
6451e041 | 747 | struct ino_entry *orphan = NULL; |
67298804 | 748 | struct inode_management *im = &sbi->im[ORPHAN_INO]; |
127e670a | 749 | |
67298804 | 750 | orphan_blocks = GET_ORPHAN_BLOCKS(im->ino_num); |
8c402946 | 751 | |
d6c67a4f JK |
752 | /* |
753 | * we don't need to do spin_lock(&im->ino_lock) here, since all the | |
754 | * orphan inode operations are covered under f2fs_lock_op(). | |
755 | * And, spin_lock should be avoided due to page operations below. | |
756 | */ | |
67298804 | 757 | head = &im->ino_list; |
127e670a JK |
758 | |
759 | /* loop for each orphan inode entry and write them in Jornal block */ | |
502c6e0b GZ |
760 | list_for_each_entry(orphan, head, list) { |
761 | if (!page) { | |
4d57b86d | 762 | page = f2fs_grab_meta_page(sbi, start_blk++); |
502c6e0b GZ |
763 | orphan_blk = |
764 | (struct f2fs_orphan_block *)page_address(page); | |
765 | memset(orphan_blk, 0, sizeof(*orphan_blk)); | |
766 | } | |
127e670a | 767 | |
36795567 | 768 | orphan_blk->ino[nentries++] = cpu_to_le32(orphan->ino); |
127e670a | 769 | |
36795567 | 770 | if (nentries == F2FS_ORPHANS_PER_BLOCK) { |
127e670a JK |
771 | /* |
772 | * an orphan block is full of 1020 entries, | |
773 | * then we need to flush current orphan blocks | |
774 | * and bring another one in memory | |
775 | */ | |
776 | orphan_blk->blk_addr = cpu_to_le16(index); | |
777 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
778 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
779 | set_page_dirty(page); | |
780 | f2fs_put_page(page, 1); | |
781 | index++; | |
127e670a JK |
782 | nentries = 0; |
783 | page = NULL; | |
784 | } | |
502c6e0b | 785 | } |
127e670a | 786 | |
502c6e0b GZ |
787 | if (page) { |
788 | orphan_blk->blk_addr = cpu_to_le16(index); | |
789 | orphan_blk->blk_count = cpu_to_le16(orphan_blocks); | |
790 | orphan_blk->entry_count = cpu_to_le32(nentries); | |
791 | set_page_dirty(page); | |
792 | f2fs_put_page(page, 1); | |
127e670a | 793 | } |
127e670a JK |
794 | } |
795 | ||
d7eb8f1c CY |
796 | static __u32 f2fs_checkpoint_chksum(struct f2fs_sb_info *sbi, |
797 | struct f2fs_checkpoint *ckpt) | |
798 | { | |
799 | unsigned int chksum_ofs = le32_to_cpu(ckpt->checksum_offset); | |
800 | __u32 chksum; | |
801 | ||
802 | chksum = f2fs_crc32(sbi, ckpt, chksum_ofs); | |
803 | if (chksum_ofs < CP_CHKSUM_OFFSET) { | |
804 | chksum_ofs += sizeof(chksum); | |
805 | chksum = f2fs_chksum(sbi, chksum, (__u8 *)ckpt + chksum_ofs, | |
806 | F2FS_BLKSIZE - chksum_ofs); | |
807 | } | |
808 | return chksum; | |
809 | } | |
810 | ||
fc0065ad TY |
811 | static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr, |
812 | struct f2fs_checkpoint **cp_block, struct page **cp_page, | |
813 | unsigned long long *version) | |
127e670a | 814 | { |
fc0065ad | 815 | size_t crc_offset = 0; |
d7eb8f1c | 816 | __u32 crc; |
127e670a | 817 | |
4d57b86d | 818 | *cp_page = f2fs_get_meta_page(sbi, cp_addr); |
7735730d CY |
819 | if (IS_ERR(*cp_page)) |
820 | return PTR_ERR(*cp_page); | |
821 | ||
fc0065ad | 822 | *cp_block = (struct f2fs_checkpoint *)page_address(*cp_page); |
127e670a | 823 | |
fc0065ad | 824 | crc_offset = le32_to_cpu((*cp_block)->checksum_offset); |
d7eb8f1c CY |
825 | if (crc_offset < CP_MIN_CHKSUM_OFFSET || |
826 | crc_offset > CP_CHKSUM_OFFSET) { | |
d3f07c04 | 827 | f2fs_put_page(*cp_page, 1); |
dcbb4c10 | 828 | f2fs_warn(sbi, "invalid crc_offset: %zu", crc_offset); |
fc0065ad TY |
829 | return -EINVAL; |
830 | } | |
127e670a | 831 | |
d7eb8f1c CY |
832 | crc = f2fs_checkpoint_chksum(sbi, *cp_block); |
833 | if (crc != cur_cp_crc(*cp_block)) { | |
d3f07c04 | 834 | f2fs_put_page(*cp_page, 1); |
dcbb4c10 | 835 | f2fs_warn(sbi, "invalid crc value"); |
fc0065ad TY |
836 | return -EINVAL; |
837 | } | |
127e670a | 838 | |
fc0065ad TY |
839 | *version = cur_cp_version(*cp_block); |
840 | return 0; | |
841 | } | |
127e670a | 842 | |
fc0065ad TY |
843 | static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, |
844 | block_t cp_addr, unsigned long long *version) | |
845 | { | |
846 | struct page *cp_page_1 = NULL, *cp_page_2 = NULL; | |
847 | struct f2fs_checkpoint *cp_block = NULL; | |
848 | unsigned long long cur_version = 0, pre_version = 0; | |
849 | int err; | |
127e670a | 850 | |
fc0065ad TY |
851 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, |
852 | &cp_page_1, version); | |
853 | if (err) | |
d3f07c04 | 854 | return NULL; |
c9b60788 CY |
855 | |
856 | if (le32_to_cpu(cp_block->cp_pack_total_block_count) > | |
857 | sbi->blocks_per_seg) { | |
dcbb4c10 JP |
858 | f2fs_warn(sbi, "invalid cp_pack_total_block_count:%u", |
859 | le32_to_cpu(cp_block->cp_pack_total_block_count)); | |
d3f07c04 | 860 | goto invalid_cp; |
c9b60788 | 861 | } |
fc0065ad | 862 | pre_version = *version; |
127e670a | 863 | |
fc0065ad TY |
864 | cp_addr += le32_to_cpu(cp_block->cp_pack_total_block_count) - 1; |
865 | err = get_checkpoint_version(sbi, cp_addr, &cp_block, | |
866 | &cp_page_2, version); | |
867 | if (err) | |
d3f07c04 | 868 | goto invalid_cp; |
fc0065ad | 869 | cur_version = *version; |
127e670a JK |
870 | |
871 | if (cur_version == pre_version) { | |
872 | *version = cur_version; | |
873 | f2fs_put_page(cp_page_2, 1); | |
874 | return cp_page_1; | |
875 | } | |
127e670a | 876 | f2fs_put_page(cp_page_2, 1); |
d3f07c04 | 877 | invalid_cp: |
127e670a JK |
878 | f2fs_put_page(cp_page_1, 1); |
879 | return NULL; | |
880 | } | |
881 | ||
4d57b86d | 882 | int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi) |
127e670a JK |
883 | { |
884 | struct f2fs_checkpoint *cp_block; | |
885 | struct f2fs_super_block *fsb = sbi->raw_super; | |
886 | struct page *cp1, *cp2, *cur_page; | |
887 | unsigned long blk_size = sbi->blocksize; | |
888 | unsigned long long cp1_version = 0, cp2_version = 0; | |
889 | unsigned long long cp_start_blk_no; | |
55141486 | 890 | unsigned int cp_blks = 1 + __cp_payload(sbi); |
1dbe4152 CL |
891 | block_t cp_blk_no; |
892 | int i; | |
10f966bb | 893 | int err; |
127e670a | 894 | |
026f0507 KC |
895 | sbi->ckpt = f2fs_kzalloc(sbi, array_size(blk_size, cp_blks), |
896 | GFP_KERNEL); | |
127e670a JK |
897 | if (!sbi->ckpt) |
898 | return -ENOMEM; | |
899 | /* | |
900 | * Finding out valid cp block involves read both | |
901 | * sets( cp pack1 and cp pack 2) | |
902 | */ | |
903 | cp_start_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
904 | cp1 = validate_checkpoint(sbi, cp_start_blk_no, &cp1_version); | |
905 | ||
906 | /* The second checkpoint pack should start at the next segment */ | |
f9a4e6df JK |
907 | cp_start_blk_no += ((unsigned long long)1) << |
908 | le32_to_cpu(fsb->log_blocks_per_seg); | |
127e670a JK |
909 | cp2 = validate_checkpoint(sbi, cp_start_blk_no, &cp2_version); |
910 | ||
911 | if (cp1 && cp2) { | |
912 | if (ver_after(cp2_version, cp1_version)) | |
913 | cur_page = cp2; | |
914 | else | |
915 | cur_page = cp1; | |
916 | } else if (cp1) { | |
917 | cur_page = cp1; | |
918 | } else if (cp2) { | |
919 | cur_page = cp2; | |
920 | } else { | |
10f966bb | 921 | err = -EFSCORRUPTED; |
127e670a JK |
922 | goto fail_no_cp; |
923 | } | |
924 | ||
925 | cp_block = (struct f2fs_checkpoint *)page_address(cur_page); | |
926 | memcpy(sbi->ckpt, cp_block, blk_size); | |
927 | ||
8508e44a JK |
928 | if (cur_page == cp1) |
929 | sbi->cur_cp_pack = 1; | |
930 | else | |
931 | sbi->cur_cp_pack = 2; | |
984ec63c | 932 | |
e494c2f9 | 933 | /* Sanity checking of checkpoint */ |
10f966bb CY |
934 | if (f2fs_sanity_check_ckpt(sbi)) { |
935 | err = -EFSCORRUPTED; | |
e494c2f9 | 936 | goto free_fail_no_cp; |
10f966bb | 937 | } |
e494c2f9 | 938 | |
1dbe4152 CL |
939 | if (cp_blks <= 1) |
940 | goto done; | |
941 | ||
942 | cp_blk_no = le32_to_cpu(fsb->cp_blkaddr); | |
943 | if (cur_page == cp2) | |
944 | cp_blk_no += 1 << le32_to_cpu(fsb->log_blocks_per_seg); | |
945 | ||
946 | for (i = 1; i < cp_blks; i++) { | |
947 | void *sit_bitmap_ptr; | |
948 | unsigned char *ckpt = (unsigned char *)sbi->ckpt; | |
949 | ||
4d57b86d | 950 | cur_page = f2fs_get_meta_page(sbi, cp_blk_no + i); |
10f966bb CY |
951 | if (IS_ERR(cur_page)) { |
952 | err = PTR_ERR(cur_page); | |
7735730d | 953 | goto free_fail_no_cp; |
10f966bb | 954 | } |
1dbe4152 CL |
955 | sit_bitmap_ptr = page_address(cur_page); |
956 | memcpy(ckpt + i * blk_size, sit_bitmap_ptr, blk_size); | |
957 | f2fs_put_page(cur_page, 1); | |
958 | } | |
959 | done: | |
127e670a JK |
960 | f2fs_put_page(cp1, 1); |
961 | f2fs_put_page(cp2, 1); | |
962 | return 0; | |
963 | ||
a2125ff7 JK |
964 | free_fail_no_cp: |
965 | f2fs_put_page(cp1, 1); | |
966 | f2fs_put_page(cp2, 1); | |
127e670a | 967 | fail_no_cp: |
5222595d | 968 | kvfree(sbi->ckpt); |
10f966bb | 969 | return err; |
127e670a JK |
970 | } |
971 | ||
c227f912 | 972 | static void __add_dirty_inode(struct inode *inode, enum inode_type type) |
127e670a | 973 | { |
4081363f | 974 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 975 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
127e670a | 976 | |
91942321 | 977 | if (is_inode_flag_set(inode, flag)) |
2710fd7e | 978 | return; |
2d7b822a | 979 | |
91942321 | 980 | set_inode_flag(inode, flag); |
99f4b917 CY |
981 | if (!f2fs_is_volatile_file(inode)) |
982 | list_add_tail(&F2FS_I(inode)->dirty_list, | |
983 | &sbi->inode_list[type]); | |
33fbd510 | 984 | stat_inc_dirty_inode(sbi, type); |
5deb8267 JK |
985 | } |
986 | ||
c227f912 | 987 | static void __remove_dirty_inode(struct inode *inode, enum inode_type type) |
6ad7609a | 988 | { |
c227f912 | 989 | int flag = (type == DIR_INODE) ? FI_DIRTY_DIR : FI_DIRTY_FILE; |
6ad7609a | 990 | |
91942321 | 991 | if (get_dirty_pages(inode) || !is_inode_flag_set(inode, flag)) |
6ad7609a CY |
992 | return; |
993 | ||
91942321 JK |
994 | list_del_init(&F2FS_I(inode)->dirty_list); |
995 | clear_inode_flag(inode, flag); | |
33fbd510 | 996 | stat_dec_dirty_inode(F2FS_I_SB(inode), type); |
6ad7609a CY |
997 | } |
998 | ||
4d57b86d | 999 | void f2fs_update_dirty_page(struct inode *inode, struct page *page) |
5deb8267 | 1000 | { |
4081363f | 1001 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 1002 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
5deb8267 | 1003 | |
5ac9f36f CY |
1004 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1005 | !S_ISLNK(inode->i_mode)) | |
127e670a | 1006 | return; |
7bd59381 | 1007 | |
1c4bf763 JK |
1008 | spin_lock(&sbi->inode_lock[type]); |
1009 | if (type != FILE_INODE || test_opt(sbi, DATA_FLUSH)) | |
10aa97c3 | 1010 | __add_dirty_inode(inode, type); |
b951a4ec | 1011 | inode_inc_dirty_pages(inode); |
1c4bf763 JK |
1012 | spin_unlock(&sbi->inode_lock[type]); |
1013 | ||
240a5915 | 1014 | f2fs_set_page_private(page, 0); |
9e4ded3f | 1015 | f2fs_trace_pid(page); |
5deb8267 JK |
1016 | } |
1017 | ||
4d57b86d | 1018 | void f2fs_remove_dirty_inode(struct inode *inode) |
127e670a | 1019 | { |
4081363f | 1020 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
c227f912 | 1021 | enum inode_type type = S_ISDIR(inode->i_mode) ? DIR_INODE : FILE_INODE; |
127e670a | 1022 | |
c227f912 CY |
1023 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1024 | !S_ISLNK(inode->i_mode)) | |
127e670a JK |
1025 | return; |
1026 | ||
10aa97c3 JK |
1027 | if (type == FILE_INODE && !test_opt(sbi, DATA_FLUSH)) |
1028 | return; | |
1029 | ||
c227f912 CY |
1030 | spin_lock(&sbi->inode_lock[type]); |
1031 | __remove_dirty_inode(inode, type); | |
1032 | spin_unlock(&sbi->inode_lock[type]); | |
74d0b917 JK |
1033 | } |
1034 | ||
4d57b86d | 1035 | int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type) |
127e670a | 1036 | { |
ce3b7d80 | 1037 | struct list_head *head; |
127e670a | 1038 | struct inode *inode; |
2710fd7e | 1039 | struct f2fs_inode_info *fi; |
4cf18537 | 1040 | bool is_dir = (type == DIR_INODE); |
4db08d01 | 1041 | unsigned long ino = 0; |
4cf18537 CY |
1042 | |
1043 | trace_f2fs_sync_dirty_inodes_enter(sbi->sb, is_dir, | |
1044 | get_pages(sbi, is_dir ? | |
1045 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
127e670a | 1046 | retry: |
af41d3ee | 1047 | if (unlikely(f2fs_cp_error(sbi))) |
6d5a1495 | 1048 | return -EIO; |
af41d3ee | 1049 | |
c227f912 | 1050 | spin_lock(&sbi->inode_lock[type]); |
ce3b7d80 | 1051 | |
c227f912 | 1052 | head = &sbi->inode_list[type]; |
127e670a | 1053 | if (list_empty(head)) { |
c227f912 | 1054 | spin_unlock(&sbi->inode_lock[type]); |
4cf18537 CY |
1055 | trace_f2fs_sync_dirty_inodes_exit(sbi->sb, is_dir, |
1056 | get_pages(sbi, is_dir ? | |
1057 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA)); | |
6d5a1495 | 1058 | return 0; |
127e670a | 1059 | } |
939afa94 | 1060 | fi = list_first_entry(head, struct f2fs_inode_info, dirty_list); |
2710fd7e | 1061 | inode = igrab(&fi->vfs_inode); |
c227f912 | 1062 | spin_unlock(&sbi->inode_lock[type]); |
127e670a | 1063 | if (inode) { |
4db08d01 JK |
1064 | unsigned long cur_ino = inode->i_ino; |
1065 | ||
186857c5 | 1066 | F2FS_I(inode)->cp_task = current; |
b0af6d49 | 1067 | |
87d6f890 | 1068 | filemap_fdatawrite(inode->i_mapping); |
b0af6d49 | 1069 | |
186857c5 | 1070 | F2FS_I(inode)->cp_task = NULL; |
b0af6d49 | 1071 | |
127e670a | 1072 | iput(inode); |
4db08d01 | 1073 | /* We need to give cpu to another writers. */ |
2a63531a | 1074 | if (ino == cur_ino) |
4db08d01 | 1075 | cond_resched(); |
2a63531a | 1076 | else |
4db08d01 | 1077 | ino = cur_ino; |
127e670a JK |
1078 | } else { |
1079 | /* | |
1080 | * We should submit bio, since it exists several | |
1081 | * wribacking dentry pages in the freeing inode. | |
1082 | */ | |
b9109b0e | 1083 | f2fs_submit_merged_write(sbi, DATA); |
7ecebe5e | 1084 | cond_resched(); |
127e670a JK |
1085 | } |
1086 | goto retry; | |
1087 | } | |
1088 | ||
0f18b462 JK |
1089 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi) |
1090 | { | |
1091 | struct list_head *head = &sbi->inode_list[DIRTY_META]; | |
1092 | struct inode *inode; | |
1093 | struct f2fs_inode_info *fi; | |
1094 | s64 total = get_pages(sbi, F2FS_DIRTY_IMETA); | |
1095 | ||
1096 | while (total--) { | |
1097 | if (unlikely(f2fs_cp_error(sbi))) | |
1098 | return -EIO; | |
1099 | ||
1100 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
1101 | if (list_empty(head)) { | |
1102 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1103 | return 0; | |
1104 | } | |
939afa94 | 1105 | fi = list_first_entry(head, struct f2fs_inode_info, |
0f18b462 JK |
1106 | gdirty_list); |
1107 | inode = igrab(&fi->vfs_inode); | |
1108 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1109 | if (inode) { | |
18340edc JK |
1110 | sync_inode_metadata(inode, 0); |
1111 | ||
1112 | /* it's on eviction */ | |
1113 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) | |
4d57b86d | 1114 | f2fs_update_inode_page(inode); |
0f18b462 JK |
1115 | iput(inode); |
1116 | } | |
dee668c1 | 1117 | } |
0f18b462 JK |
1118 | return 0; |
1119 | } | |
1120 | ||
59c9081b YH |
1121 | static void __prepare_cp_block(struct f2fs_sb_info *sbi) |
1122 | { | |
1123 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1124 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
1125 | nid_t last_nid = nm_i->next_scan_nid; | |
1126 | ||
1127 | next_free_nid(sbi, &last_nid); | |
1128 | ckpt->valid_block_count = cpu_to_le64(valid_user_blocks(sbi)); | |
1129 | ckpt->valid_node_count = cpu_to_le32(valid_node_count(sbi)); | |
1130 | ckpt->valid_inode_count = cpu_to_le32(valid_inode_count(sbi)); | |
1131 | ckpt->next_free_nid = cpu_to_le32(last_nid); | |
1132 | } | |
1133 | ||
af033b2a CY |
1134 | static bool __need_flush_quota(struct f2fs_sb_info *sbi) |
1135 | { | |
db6ec53b JK |
1136 | bool ret = false; |
1137 | ||
af033b2a CY |
1138 | if (!is_journalled_quota(sbi)) |
1139 | return false; | |
db6ec53b JK |
1140 | |
1141 | down_write(&sbi->quota_sem); | |
1142 | if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) { | |
1143 | ret = false; | |
1144 | } else if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) { | |
1145 | ret = false; | |
1146 | } else if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_FLUSH)) { | |
1147 | clear_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH); | |
1148 | ret = true; | |
1149 | } else if (get_pages(sbi, F2FS_DIRTY_QDATA)) { | |
1150 | ret = true; | |
1151 | } | |
1152 | up_write(&sbi->quota_sem); | |
1153 | return ret; | |
af033b2a CY |
1154 | } |
1155 | ||
0a8165d7 | 1156 | /* |
127e670a JK |
1157 | * Freeze all the FS-operations for checkpoint. |
1158 | */ | |
cf779cab | 1159 | static int block_operations(struct f2fs_sb_info *sbi) |
127e670a | 1160 | { |
127e670a JK |
1161 | struct writeback_control wbc = { |
1162 | .sync_mode = WB_SYNC_ALL, | |
1163 | .nr_to_write = LONG_MAX, | |
1164 | .for_reclaim = 0, | |
1165 | }; | |
c718379b | 1166 | struct blk_plug plug; |
af033b2a | 1167 | int err = 0, cnt = 0; |
c718379b JK |
1168 | |
1169 | blk_start_plug(&plug); | |
1170 | ||
af033b2a | 1171 | retry_flush_quotas: |
db6ec53b | 1172 | f2fs_lock_all(sbi); |
af033b2a CY |
1173 | if (__need_flush_quota(sbi)) { |
1174 | int locked; | |
1175 | ||
1176 | if (++cnt > DEFAULT_RETRY_QUOTA_FLUSH_COUNT) { | |
1177 | set_sbi_flag(sbi, SBI_QUOTA_SKIP_FLUSH); | |
db6ec53b | 1178 | set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH); |
af033b2a CY |
1179 | goto retry_flush_dents; |
1180 | } | |
db6ec53b | 1181 | f2fs_unlock_all(sbi); |
af033b2a CY |
1182 | |
1183 | /* only failed during mount/umount/freeze/quotactl */ | |
1184 | locked = down_read_trylock(&sbi->sb->s_umount); | |
1185 | f2fs_quota_sync(sbi->sb, -1); | |
1186 | if (locked) | |
1187 | up_read(&sbi->sb->s_umount); | |
af033b2a CY |
1188 | cond_resched(); |
1189 | goto retry_flush_quotas; | |
1190 | } | |
1191 | ||
1192 | retry_flush_dents: | |
127e670a | 1193 | /* write all the dirty dentry pages */ |
127e670a | 1194 | if (get_pages(sbi, F2FS_DIRTY_DENTS)) { |
e479556b | 1195 | f2fs_unlock_all(sbi); |
4d57b86d | 1196 | err = f2fs_sync_dirty_inodes(sbi, DIR_INODE); |
6d5a1495 | 1197 | if (err) |
cf779cab | 1198 | goto out; |
30973883 | 1199 | cond_resched(); |
af033b2a | 1200 | goto retry_flush_quotas; |
127e670a JK |
1201 | } |
1202 | ||
59c9081b YH |
1203 | /* |
1204 | * POR: we should ensure that there are no dirty node pages | |
1205 | * until finishing nat/sit flush. inode->i_blocks can be updated. | |
1206 | */ | |
1207 | down_write(&sbi->node_change); | |
1208 | ||
0f18b462 | 1209 | if (get_pages(sbi, F2FS_DIRTY_IMETA)) { |
59c9081b | 1210 | up_write(&sbi->node_change); |
0f18b462 JK |
1211 | f2fs_unlock_all(sbi); |
1212 | err = f2fs_sync_inode_meta(sbi); | |
1213 | if (err) | |
1214 | goto out; | |
30973883 | 1215 | cond_resched(); |
af033b2a | 1216 | goto retry_flush_quotas; |
0f18b462 JK |
1217 | } |
1218 | ||
39936837 | 1219 | retry_flush_nodes: |
b3582c68 | 1220 | down_write(&sbi->node_write); |
127e670a JK |
1221 | |
1222 | if (get_pages(sbi, F2FS_DIRTY_NODES)) { | |
b3582c68 | 1223 | up_write(&sbi->node_write); |
c29fd0c0 | 1224 | atomic_inc(&sbi->wb_sync_req[NODE]); |
4d57b86d | 1225 | err = f2fs_sync_node_pages(sbi, &wbc, false, FS_CP_NODE_IO); |
c29fd0c0 | 1226 | atomic_dec(&sbi->wb_sync_req[NODE]); |
6d5a1495 | 1227 | if (err) { |
59c9081b | 1228 | up_write(&sbi->node_change); |
cf779cab | 1229 | f2fs_unlock_all(sbi); |
cf779cab JK |
1230 | goto out; |
1231 | } | |
30973883 | 1232 | cond_resched(); |
39936837 | 1233 | goto retry_flush_nodes; |
127e670a | 1234 | } |
59c9081b YH |
1235 | |
1236 | /* | |
1237 | * sbi->node_change is used only for AIO write_begin path which produces | |
1238 | * dirty node blocks and some checkpoint values by block allocation. | |
1239 | */ | |
1240 | __prepare_cp_block(sbi); | |
1241 | up_write(&sbi->node_change); | |
cf779cab | 1242 | out: |
c718379b | 1243 | blk_finish_plug(&plug); |
cf779cab | 1244 | return err; |
127e670a JK |
1245 | } |
1246 | ||
1247 | static void unblock_operations(struct f2fs_sb_info *sbi) | |
1248 | { | |
b3582c68 | 1249 | up_write(&sbi->node_write); |
e479556b | 1250 | f2fs_unlock_all(sbi); |
127e670a JK |
1251 | } |
1252 | ||
50fa53ec | 1253 | void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi) |
fb51b5ef CL |
1254 | { |
1255 | DEFINE_WAIT(wait); | |
1256 | ||
1257 | for (;;) { | |
1258 | prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE); | |
1259 | ||
36951b38 | 1260 | if (!get_pages(sbi, F2FS_WB_CP_DATA)) |
fb51b5ef CL |
1261 | break; |
1262 | ||
af697c0f JK |
1263 | if (unlikely(f2fs_cp_error(sbi))) |
1264 | break; | |
1265 | ||
0ff21646 | 1266 | io_schedule_timeout(5*HZ); |
fb51b5ef CL |
1267 | } |
1268 | finish_wait(&sbi->cp_wait, &wait); | |
1269 | } | |
1270 | ||
e4c5d848 JK |
1271 | static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
1272 | { | |
1273 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num; | |
1274 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d1aa2453 | 1275 | unsigned long flags; |
e4c5d848 | 1276 | |
d1aa2453 | 1277 | spin_lock_irqsave(&sbi->cp_lock, flags); |
e4c5d848 | 1278 | |
c473f1a9 | 1279 | if ((cpc->reason & CP_UMOUNT) && |
10047f53 | 1280 | le32_to_cpu(ckpt->cp_pack_total_block_count) > |
22ad0b6a JK |
1281 | sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) |
1282 | disable_nat_bits(sbi, false); | |
1283 | ||
1f43e2ad CY |
1284 | if (cpc->reason & CP_TRIMMED) |
1285 | __set_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
cd36d7a1 CY |
1286 | else |
1287 | __clear_ckpt_flags(ckpt, CP_TRIMMED_FLAG); | |
1f43e2ad | 1288 | |
c473f1a9 | 1289 | if (cpc->reason & CP_UMOUNT) |
e4c5d848 JK |
1290 | __set_ckpt_flags(ckpt, CP_UMOUNT_FLAG); |
1291 | else | |
1292 | __clear_ckpt_flags(ckpt, CP_UMOUNT_FLAG); | |
1293 | ||
c473f1a9 | 1294 | if (cpc->reason & CP_FASTBOOT) |
e4c5d848 JK |
1295 | __set_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); |
1296 | else | |
1297 | __clear_ckpt_flags(ckpt, CP_FASTBOOT_FLAG); | |
1298 | ||
1299 | if (orphan_num) | |
1300 | __set_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1301 | else | |
1302 | __clear_ckpt_flags(ckpt, CP_ORPHAN_PRESENT_FLAG); | |
1303 | ||
04f0b2ea QS |
1304 | if (is_sbi_flag_set(sbi, SBI_NEED_FSCK) || |
1305 | is_sbi_flag_set(sbi, SBI_IS_RESIZEFS)) | |
e4c5d848 JK |
1306 | __set_ckpt_flags(ckpt, CP_FSCK_FLAG); |
1307 | ||
4354994f DR |
1308 | if (is_sbi_flag_set(sbi, SBI_CP_DISABLED)) |
1309 | __set_ckpt_flags(ckpt, CP_DISABLED_FLAG); | |
1310 | else | |
1311 | __clear_ckpt_flags(ckpt, CP_DISABLED_FLAG); | |
1312 | ||
db610a64 JK |
1313 | if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK)) |
1314 | __set_ckpt_flags(ckpt, CP_DISABLED_QUICK_FLAG); | |
1315 | else | |
1316 | __clear_ckpt_flags(ckpt, CP_DISABLED_QUICK_FLAG); | |
1317 | ||
af033b2a CY |
1318 | if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) |
1319 | __set_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
bc88ac96 JK |
1320 | else |
1321 | __clear_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
af033b2a CY |
1322 | |
1323 | if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) | |
1324 | __set_ckpt_flags(ckpt, CP_QUOTA_NEED_FSCK_FLAG); | |
1325 | ||
e4c5d848 JK |
1326 | /* set this flag to activate crc|cp_ver for recovery */ |
1327 | __set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG); | |
f2367923 | 1328 | __clear_ckpt_flags(ckpt, CP_NOCRC_RECOVERY_FLAG); |
e4c5d848 | 1329 | |
d1aa2453 | 1330 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
e4c5d848 JK |
1331 | } |
1332 | ||
46706d59 GX |
1333 | static void commit_checkpoint(struct f2fs_sb_info *sbi, |
1334 | void *src, block_t blk_addr) | |
1335 | { | |
1336 | struct writeback_control wbc = { | |
1337 | .for_reclaim = 0, | |
1338 | }; | |
1339 | ||
1340 | /* | |
1341 | * pagevec_lookup_tag and lock_page again will take | |
4d57b86d CY |
1342 | * some extra time. Therefore, f2fs_update_meta_pages and |
1343 | * f2fs_sync_meta_pages are combined in this function. | |
46706d59 | 1344 | */ |
4d57b86d | 1345 | struct page *page = f2fs_grab_meta_page(sbi, blk_addr); |
46706d59 GX |
1346 | int err; |
1347 | ||
bae0ee7a | 1348 | f2fs_wait_on_page_writeback(page, META, true, true); |
8d64d365 CY |
1349 | |
1350 | memcpy(page_address(page), src, PAGE_SIZE); | |
1351 | ||
1352 | set_page_dirty(page); | |
46706d59 GX |
1353 | if (unlikely(!clear_page_dirty_for_io(page))) |
1354 | f2fs_bug_on(sbi, 1); | |
1355 | ||
1356 | /* writeout cp pack 2 page */ | |
1357 | err = __f2fs_write_meta_page(page, &wbc, FS_CP_META_IO); | |
af697c0f JK |
1358 | if (unlikely(err && f2fs_cp_error(sbi))) { |
1359 | f2fs_put_page(page, 1); | |
1360 | return; | |
1361 | } | |
46706d59 | 1362 | |
af697c0f | 1363 | f2fs_bug_on(sbi, err); |
46706d59 GX |
1364 | f2fs_put_page(page, 0); |
1365 | ||
1366 | /* submit checkpoint (with barrier if NOBARRIER is not set) */ | |
1367 | f2fs_submit_merged_write(sbi, META_FLUSH); | |
1368 | } | |
1369 | ||
c34f42e2 | 1370 | static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1371 | { |
1372 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
77041823 | 1373 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
d1aa2453 | 1374 | unsigned long orphan_num = sbi->im[ORPHAN_INO].ino_num, flags; |
127e670a | 1375 | block_t start_blk; |
127e670a | 1376 | unsigned int data_sum_blocks, orphan_blocks; |
7e586fa0 | 1377 | __u32 crc32 = 0; |
127e670a | 1378 | int i; |
55141486 | 1379 | int cp_payload_blks = __cp_payload(sbi); |
8f1dbbbb SL |
1380 | struct super_block *sb = sbi->sb; |
1381 | struct curseg_info *seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
1382 | u64 kbytes_written; | |
1228b482 | 1383 | int err; |
127e670a JK |
1384 | |
1385 | /* Flush all the NAT/SIT pages */ | |
8ec18bff CY |
1386 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
1387 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_META) && | |
1388 | !f2fs_cp_error(sbi)); | |
127e670a | 1389 | |
127e670a JK |
1390 | /* |
1391 | * modify checkpoint | |
1392 | * version number is already updated | |
1393 | */ | |
a1f72ac2 | 1394 | ckpt->elapsed_time = cpu_to_le64(get_mtime(sbi, true)); |
127e670a | 1395 | ckpt->free_segment_count = cpu_to_le32(free_segments(sbi)); |
b5b82205 | 1396 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
127e670a JK |
1397 | ckpt->cur_node_segno[i] = |
1398 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_NODE)); | |
1399 | ckpt->cur_node_blkoff[i] = | |
1400 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_NODE)); | |
1401 | ckpt->alloc_type[i + CURSEG_HOT_NODE] = | |
1402 | curseg_alloc_type(sbi, i + CURSEG_HOT_NODE); | |
1403 | } | |
b5b82205 | 1404 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { |
127e670a JK |
1405 | ckpt->cur_data_segno[i] = |
1406 | cpu_to_le32(curseg_segno(sbi, i + CURSEG_HOT_DATA)); | |
1407 | ckpt->cur_data_blkoff[i] = | |
1408 | cpu_to_le16(curseg_blkoff(sbi, i + CURSEG_HOT_DATA)); | |
1409 | ckpt->alloc_type[i + CURSEG_HOT_DATA] = | |
1410 | curseg_alloc_type(sbi, i + CURSEG_HOT_DATA); | |
1411 | } | |
1412 | ||
127e670a | 1413 | /* 2 cp + n data seg summary + orphan inode blocks */ |
4d57b86d | 1414 | data_sum_blocks = f2fs_npages_for_summary_flush(sbi, false); |
d1aa2453 | 1415 | spin_lock_irqsave(&sbi->cp_lock, flags); |
b5b82205 | 1416 | if (data_sum_blocks < NR_CURSEG_DATA_TYPE) |
aaec2b1d | 1417 | __set_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
127e670a | 1418 | else |
aaec2b1d | 1419 | __clear_ckpt_flags(ckpt, CP_COMPACT_SUM_FLAG); |
d1aa2453 | 1420 | spin_unlock_irqrestore(&sbi->cp_lock, flags); |
127e670a | 1421 | |
67298804 | 1422 | orphan_blocks = GET_ORPHAN_BLOCKS(orphan_num); |
1dbe4152 CL |
1423 | ckpt->cp_pack_start_sum = cpu_to_le32(1 + cp_payload_blks + |
1424 | orphan_blocks); | |
127e670a | 1425 | |
119ee914 | 1426 | if (__remain_node_summaries(cpc->reason)) |
b5b82205 | 1427 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS+ |
1dbe4152 CL |
1428 | cp_payload_blks + data_sum_blocks + |
1429 | orphan_blocks + NR_CURSEG_NODE_TYPE); | |
119ee914 | 1430 | else |
b5b82205 | 1431 | ckpt->cp_pack_total_block_count = cpu_to_le32(F2FS_CP_PACKS + |
1dbe4152 CL |
1432 | cp_payload_blks + data_sum_blocks + |
1433 | orphan_blocks); | |
119ee914 | 1434 | |
e4c5d848 JK |
1435 | /* update ckpt flag for checkpoint */ |
1436 | update_ckpt_flags(sbi, cpc); | |
a468f0ef | 1437 | |
127e670a JK |
1438 | /* update SIT/NAT bitmap */ |
1439 | get_sit_bitmap(sbi, __bitmap_ptr(sbi, SIT_BITMAP)); | |
1440 | get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP)); | |
1441 | ||
d7eb8f1c | 1442 | crc32 = f2fs_checkpoint_chksum(sbi, ckpt); |
7e586fa0 JK |
1443 | *((__le32 *)((unsigned char *)ckpt + |
1444 | le32_to_cpu(ckpt->checksum_offset))) | |
127e670a JK |
1445 | = cpu_to_le32(crc32); |
1446 | ||
8508e44a | 1447 | start_blk = __start_cp_next_addr(sbi); |
127e670a | 1448 | |
22ad0b6a JK |
1449 | /* write nat bits */ |
1450 | if (enabled_nat_bits(sbi, cpc)) { | |
1451 | __u64 cp_ver = cur_cp_version(ckpt); | |
22ad0b6a JK |
1452 | block_t blk; |
1453 | ||
1454 | cp_ver |= ((__u64)crc32 << 32); | |
1455 | *(__le64 *)nm_i->nat_bits = cpu_to_le64(cp_ver); | |
1456 | ||
1457 | blk = start_blk + sbi->blocks_per_seg - nm_i->nat_bits_blocks; | |
1458 | for (i = 0; i < nm_i->nat_bits_blocks; i++) | |
4d57b86d | 1459 | f2fs_update_meta_page(sbi, nm_i->nat_bits + |
22ad0b6a | 1460 | (i << F2FS_BLKSIZE_BITS), blk + i); |
22ad0b6a JK |
1461 | } |
1462 | ||
127e670a | 1463 | /* write out checkpoint buffer at block 0 */ |
4d57b86d | 1464 | f2fs_update_meta_page(sbi, ckpt, start_blk++); |
381722d2 CY |
1465 | |
1466 | for (i = 1; i < 1 + cp_payload_blks; i++) | |
4d57b86d | 1467 | f2fs_update_meta_page(sbi, (char *)ckpt + i * F2FS_BLKSIZE, |
381722d2 | 1468 | start_blk++); |
1dbe4152 | 1469 | |
67298804 | 1470 | if (orphan_num) { |
127e670a JK |
1471 | write_orphan_inodes(sbi, start_blk); |
1472 | start_blk += orphan_blocks; | |
1473 | } | |
1474 | ||
4d57b86d | 1475 | f2fs_write_data_summaries(sbi, start_blk); |
127e670a | 1476 | start_blk += data_sum_blocks; |
8f1dbbbb SL |
1477 | |
1478 | /* Record write statistics in the hot node summary */ | |
1479 | kbytes_written = sbi->kbytes_written; | |
1480 | if (sb->s_bdev->bd_part) | |
1481 | kbytes_written += BD_PART_WRITTEN(sbi); | |
1482 | ||
b7ad7512 | 1483 | seg_i->journal->info.kbytes_written = cpu_to_le64(kbytes_written); |
8f1dbbbb | 1484 | |
119ee914 | 1485 | if (__remain_node_summaries(cpc->reason)) { |
4d57b86d | 1486 | f2fs_write_node_summaries(sbi, start_blk); |
127e670a JK |
1487 | start_blk += NR_CURSEG_NODE_TYPE; |
1488 | } | |
1489 | ||
46706d59 GX |
1490 | /* update user_block_counts */ |
1491 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
1492 | percpu_counter_set(&sbi->alloc_valid_block_count, 0); | |
127e670a | 1493 | |
46706d59 | 1494 | /* Here, we have one bio having CP pack except cp pack 2 page */ |
4d57b86d | 1495 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); |
8ec18bff CY |
1496 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_META) && |
1497 | !f2fs_cp_error(sbi)); | |
46706d59 GX |
1498 | |
1499 | /* wait for previous submitted meta pages writeback */ | |
50fa53ec | 1500 | f2fs_wait_on_all_pages_writeback(sbi); |
127e670a | 1501 | |
46706d59 GX |
1502 | /* flush all device cache */ |
1503 | err = f2fs_flush_device_cache(sbi); | |
1504 | if (err) | |
1505 | return err; | |
127e670a | 1506 | |
46706d59 GX |
1507 | /* barrier and flush checkpoint cp pack 2 page if it can */ |
1508 | commit_checkpoint(sbi, ckpt, start_blk); | |
50fa53ec | 1509 | f2fs_wait_on_all_pages_writeback(sbi); |
6a8f8ca5 | 1510 | |
18767e62 | 1511 | /* |
542989b6 EB |
1512 | * invalidate intermediate page cache borrowed from meta inode which are |
1513 | * used for migration of encrypted or verity inode's blocks. | |
18767e62 | 1514 | */ |
542989b6 | 1515 | if (f2fs_sb_has_encrypt(sbi) || f2fs_sb_has_verity(sbi)) |
18767e62 CY |
1516 | invalidate_mapping_pages(META_MAPPING(sbi), |
1517 | MAIN_BLKADDR(sbi), MAX_BLKADDR(sbi) - 1); | |
1518 | ||
4d57b86d | 1519 | f2fs_release_ino_entry(sbi, false); |
cf779cab | 1520 | |
50fa53ec CY |
1521 | f2fs_reset_fsync_node_info(sbi); |
1522 | ||
caf0047e | 1523 | clear_sbi_flag(sbi, SBI_IS_DIRTY); |
bbf156f7 | 1524 | clear_sbi_flag(sbi, SBI_NEED_CP); |
af033b2a | 1525 | clear_sbi_flag(sbi, SBI_QUOTA_SKIP_FLUSH); |
c9c8ed50 CY |
1526 | |
1527 | spin_lock(&sbi->stat_lock); | |
4354994f | 1528 | sbi->unusable_block_count = 0; |
c9c8ed50 CY |
1529 | spin_unlock(&sbi->stat_lock); |
1530 | ||
8508e44a | 1531 | __set_cp_next_pack(sbi); |
c34f42e2 | 1532 | |
c2a080ae CY |
1533 | /* |
1534 | * redirty superblock if metadata like node page or inode cache is | |
1535 | * updated during writing checkpoint. | |
1536 | */ | |
1537 | if (get_pages(sbi, F2FS_DIRTY_NODES) || | |
1538 | get_pages(sbi, F2FS_DIRTY_IMETA)) | |
1539 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1540 | ||
1541 | f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_DENTS)); | |
1542 | ||
af697c0f | 1543 | return unlikely(f2fs_cp_error(sbi)) ? -EIO : 0; |
127e670a JK |
1544 | } |
1545 | ||
0a8165d7 | 1546 | /* |
e1c42045 | 1547 | * We guarantee that this checkpoint procedure will not fail. |
127e670a | 1548 | */ |
4d57b86d | 1549 | int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
127e670a JK |
1550 | { |
1551 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1552 | unsigned long long ckpt_ver; | |
c34f42e2 | 1553 | int err = 0; |
127e670a | 1554 | |
f5a131bb CY |
1555 | if (f2fs_readonly(sbi->sb) || f2fs_hw_is_readonly(sbi)) |
1556 | return -EROFS; | |
1557 | ||
4354994f DR |
1558 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { |
1559 | if (cpc->reason != CP_PAUSE) | |
1560 | return 0; | |
dcbb4c10 | 1561 | f2fs_warn(sbi, "Start checkpoint disabled!"); |
4354994f | 1562 | } |
43727527 | 1563 | mutex_lock(&sbi->cp_mutex); |
8501017e | 1564 | |
caf0047e | 1565 | if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) && |
c473f1a9 CY |
1566 | ((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) || |
1567 | ((cpc->reason & CP_DISCARD) && !sbi->discard_blks))) | |
8501017e | 1568 | goto out; |
c34f42e2 CY |
1569 | if (unlikely(f2fs_cp_error(sbi))) { |
1570 | err = -EIO; | |
cf779cab | 1571 | goto out; |
c34f42e2 | 1572 | } |
2bda542d WL |
1573 | |
1574 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "start block_ops"); | |
1575 | ||
c34f42e2 CY |
1576 | err = block_operations(sbi); |
1577 | if (err) | |
cf779cab | 1578 | goto out; |
127e670a | 1579 | |
75ab4cb8 | 1580 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish block_ops"); |
2af4bd6c | 1581 | |
b9109b0e | 1582 | f2fs_flush_merged_writes(sbi); |
127e670a | 1583 | |
58cce381 | 1584 | /* this is the case of multiple fstrims without any changes */ |
c473f1a9 | 1585 | if (cpc->reason & CP_DISCARD) { |
4d57b86d | 1586 | if (!f2fs_exist_trim_candidates(sbi, cpc)) { |
25290fa5 JK |
1587 | unblock_operations(sbi); |
1588 | goto out; | |
1589 | } | |
1590 | ||
0333ad4e JK |
1591 | if (NM_I(sbi)->dirty_nat_cnt == 0 && |
1592 | SIT_I(sbi)->dirty_sentries == 0 && | |
1593 | prefree_segments(sbi) == 0) { | |
4d57b86d CY |
1594 | f2fs_flush_sit_entries(sbi, cpc); |
1595 | f2fs_clear_prefree_segments(sbi, cpc); | |
0333ad4e JK |
1596 | unblock_operations(sbi); |
1597 | goto out; | |
1598 | } | |
58cce381 YH |
1599 | } |
1600 | ||
127e670a JK |
1601 | /* |
1602 | * update checkpoint pack index | |
1603 | * Increase the version number so that | |
1604 | * SIT entries and seg summaries are written at correct place | |
1605 | */ | |
d71b5564 | 1606 | ckpt_ver = cur_cp_version(ckpt); |
127e670a JK |
1607 | ckpt->checkpoint_ver = cpu_to_le64(++ckpt_ver); |
1608 | ||
1609 | /* write cached NAT/SIT entries to NAT/SIT area */ | |
edc55aaf JK |
1610 | err = f2fs_flush_nat_entries(sbi, cpc); |
1611 | if (err) | |
1612 | goto stop; | |
1613 | ||
4d57b86d | 1614 | f2fs_flush_sit_entries(sbi, cpc); |
127e670a | 1615 | |
127e670a | 1616 | /* unlock all the fs_lock[] in do_checkpoint() */ |
c34f42e2 | 1617 | err = do_checkpoint(sbi, cpc); |
4e6a8d9b | 1618 | if (err) |
4d57b86d | 1619 | f2fs_release_discard_addrs(sbi); |
4e6a8d9b | 1620 | else |
4d57b86d | 1621 | f2fs_clear_prefree_segments(sbi, cpc); |
edc55aaf | 1622 | stop: |
127e670a | 1623 | unblock_operations(sbi); |
942e0be6 | 1624 | stat_inc_cp_count(sbi->stat_info); |
10027551 | 1625 | |
c473f1a9 | 1626 | if (cpc->reason & CP_RECOVERY) |
dcbb4c10 | 1627 | f2fs_notice(sbi, "checkpoint: version = %llx", ckpt_ver); |
60b99b48 JK |
1628 | |
1629 | /* do checkpoint periodically */ | |
6beceb54 | 1630 | f2fs_update_time(sbi, CP_TIME); |
55d1cdb2 | 1631 | trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint"); |
8501017e JK |
1632 | out: |
1633 | mutex_unlock(&sbi->cp_mutex); | |
c34f42e2 | 1634 | return err; |
127e670a JK |
1635 | } |
1636 | ||
4d57b86d | 1637 | void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi) |
127e670a | 1638 | { |
6451e041 JK |
1639 | int i; |
1640 | ||
1641 | for (i = 0; i < MAX_INO_ENTRY; i++) { | |
67298804 CY |
1642 | struct inode_management *im = &sbi->im[i]; |
1643 | ||
1644 | INIT_RADIX_TREE(&im->ino_root, GFP_ATOMIC); | |
1645 | spin_lock_init(&im->ino_lock); | |
1646 | INIT_LIST_HEAD(&im->ino_list); | |
1647 | im->ino_num = 0; | |
6451e041 JK |
1648 | } |
1649 | ||
b5b82205 | 1650 | sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS - |
14b42817 WL |
1651 | NR_CURSEG_TYPE - __cp_payload(sbi)) * |
1652 | F2FS_ORPHANS_PER_BLOCK; | |
127e670a JK |
1653 | } |
1654 | ||
4d57b86d | 1655 | int __init f2fs_create_checkpoint_caches(void) |
127e670a | 1656 | { |
6451e041 JK |
1657 | ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry", |
1658 | sizeof(struct ino_entry)); | |
1659 | if (!ino_entry_slab) | |
127e670a | 1660 | return -ENOMEM; |
4d57b86d | 1661 | f2fs_inode_entry_slab = f2fs_kmem_cache_create("f2fs_inode_entry", |
06292073 | 1662 | sizeof(struct inode_entry)); |
4d57b86d | 1663 | if (!f2fs_inode_entry_slab) { |
6451e041 | 1664 | kmem_cache_destroy(ino_entry_slab); |
127e670a JK |
1665 | return -ENOMEM; |
1666 | } | |
1667 | return 0; | |
1668 | } | |
1669 | ||
4d57b86d | 1670 | void f2fs_destroy_checkpoint_caches(void) |
127e670a | 1671 | { |
6451e041 | 1672 | kmem_cache_destroy(ino_entry_slab); |
4d57b86d | 1673 | kmem_cache_destroy(f2fs_inode_entry_slab); |
127e670a | 1674 | } |