1
2
3
4
5
6
7
8#include <linux/fs.h>
9#include <linux/f2fs_fs.h>
10#include <linux/buffer_head.h>
11#include <linux/backing-dev.h>
12#include <linux/writeback.h>
13
14#include "f2fs.h"
15#include "node.h"
16#include "segment.h"
17#include "xattr.h"
18
19#include <trace/events/f2fs.h>
20
21void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync)
22{
23 if (is_inode_flag_set(inode, FI_NEW_INODE))
24 return;
25
26 if (f2fs_inode_dirtied(inode, sync))
27 return;
28
29 mark_inode_dirty_sync(inode);
30}
31
32void f2fs_set_inode_flags(struct inode *inode)
33{
34 unsigned int flags = F2FS_I(inode)->i_flags;
35 unsigned int new_fl = 0;
36
37 if (flags & F2FS_SYNC_FL)
38 new_fl |= S_SYNC;
39 if (flags & F2FS_APPEND_FL)
40 new_fl |= S_APPEND;
41 if (flags & F2FS_IMMUTABLE_FL)
42 new_fl |= S_IMMUTABLE;
43 if (flags & F2FS_NOATIME_FL)
44 new_fl |= S_NOATIME;
45 if (flags & F2FS_DIRSYNC_FL)
46 new_fl |= S_DIRSYNC;
47 if (file_is_encrypt(inode))
48 new_fl |= S_ENCRYPTED;
49 inode_set_flags(inode, new_fl,
50 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
51 S_ENCRYPTED);
52}
53
54static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
55{
56 int extra_size = get_extra_isize(inode);
57
58 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
59 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
60 if (ri->i_addr[extra_size])
61 inode->i_rdev = old_decode_dev(
62 le32_to_cpu(ri->i_addr[extra_size]));
63 else
64 inode->i_rdev = new_decode_dev(
65 le32_to_cpu(ri->i_addr[extra_size + 1]));
66 }
67}
68
69static int __written_first_block(struct f2fs_sb_info *sbi,
70 struct f2fs_inode *ri)
71{
72 block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]);
73
74 if (!__is_valid_data_blkaddr(addr))
75 return 1;
76 if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE))
77 return -EFSCORRUPTED;
78 return 0;
79}
80
81static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
82{
83 int extra_size = get_extra_isize(inode);
84
85 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
86 if (old_valid_dev(inode->i_rdev)) {
87 ri->i_addr[extra_size] =
88 cpu_to_le32(old_encode_dev(inode->i_rdev));
89 ri->i_addr[extra_size + 1] = 0;
90 } else {
91 ri->i_addr[extra_size] = 0;
92 ri->i_addr[extra_size + 1] =
93 cpu_to_le32(new_encode_dev(inode->i_rdev));
94 ri->i_addr[extra_size + 2] = 0;
95 }
96 }
97}
98
99static void __recover_inline_status(struct inode *inode, struct page *ipage)
100{
101 void *inline_data = inline_data_addr(inode, ipage);
102 __le32 *start = inline_data;
103 __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32);
104
105 while (start < end) {
106 if (*start++) {
107 f2fs_wait_on_page_writeback(ipage, NODE, true, true);
108
109 set_inode_flag(inode, FI_DATA_EXIST);
110 set_raw_inline(inode, F2FS_INODE(ipage));
111 set_page_dirty(ipage);
112 return;
113 }
114 }
115 return;
116}
117
118static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
119{
120 struct f2fs_inode *ri = &F2FS_NODE(page)->i;
121
122 if (!f2fs_sb_has_inode_chksum(sbi))
123 return false;
124
125 if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR))
126 return false;
127
128 if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize),
129 i_inode_checksum))
130 return false;
131
132 return true;
133}
134
135static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
136{
137 struct f2fs_node *node = F2FS_NODE(page);
138 struct f2fs_inode *ri = &node->i;
139 __le32 ino = node->footer.ino;
140 __le32 gen = ri->i_generation;
141 __u32 chksum, chksum_seed;
142 __u32 dummy_cs = 0;
143 unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum);
144 unsigned int cs_size = sizeof(dummy_cs);
145
146 chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino,
147 sizeof(ino));
148 chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen));
149
150 chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset);
151 chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size);
152 offset += cs_size;
153 chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset,
154 F2FS_BLKSIZE - offset);
155 return chksum;
156}
157
158bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
159{
160 struct f2fs_inode *ri;
161 __u32 provided, calculated;
162
163 if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)))
164 return true;
165
166#ifdef CONFIG_F2FS_CHECK_FS
167 if (!f2fs_enable_inode_chksum(sbi, page))
168#else
169 if (!f2fs_enable_inode_chksum(sbi, page) ||
170 PageDirty(page) || PageWriteback(page))
171#endif
172 return true;
173
174 ri = &F2FS_NODE(page)->i;
175 provided = le32_to_cpu(ri->i_inode_checksum);
176 calculated = f2fs_inode_chksum(sbi, page);
177
178 if (provided != calculated)
179 f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x",
180 page->index, ino_of_node(page), provided, calculated);
181
182 return provided == calculated;
183}
184
185void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
186{
187 struct f2fs_inode *ri = &F2FS_NODE(page)->i;
188
189 if (!f2fs_enable_inode_chksum(sbi, page))
190 return;
191
192 ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
193}
194
195static bool sanity_check_inode(struct inode *inode, struct page *node_page)
196{
197 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
198 struct f2fs_inode_info *fi = F2FS_I(inode);
199 unsigned long long iblocks;
200
201 iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks);
202 if (!iblocks) {
203 set_sbi_flag(sbi, SBI_NEED_FSCK);
204 f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.",
205 __func__, inode->i_ino, iblocks);
206 return false;
207 }
208
209 if (ino_of_node(node_page) != nid_of_node(node_page)) {
210 set_sbi_flag(sbi, SBI_NEED_FSCK);
211 f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.",
212 __func__, inode->i_ino,
213 ino_of_node(node_page), nid_of_node(node_page));
214 return false;
215 }
216
217 if (f2fs_sb_has_flexible_inline_xattr(sbi)
218 && !f2fs_has_extra_attr(inode)) {
219 set_sbi_flag(sbi, SBI_NEED_FSCK);
220 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.",
221 __func__, inode->i_ino);
222 return false;
223 }
224
225 if (f2fs_has_extra_attr(inode) &&
226 !f2fs_sb_has_extra_attr(sbi)) {
227 set_sbi_flag(sbi, SBI_NEED_FSCK);
228 f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off",
229 __func__, inode->i_ino);
230 return false;
231 }
232
233 if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE ||
234 fi->i_extra_isize % sizeof(__le32)) {
235 set_sbi_flag(sbi, SBI_NEED_FSCK);
236 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu",
237 __func__, inode->i_ino, fi->i_extra_isize,
238 F2FS_TOTAL_EXTRA_ATTR_SIZE);
239 return false;
240 }
241
242 if (f2fs_has_extra_attr(inode) &&
243 f2fs_sb_has_flexible_inline_xattr(sbi) &&
244 f2fs_has_inline_xattr(inode) &&
245 (!fi->i_inline_xattr_size ||
246 fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) {
247 set_sbi_flag(sbi, SBI_NEED_FSCK);
248 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %zu",
249 __func__, inode->i_ino, fi->i_inline_xattr_size,
250 MAX_INLINE_XATTR_SIZE);
251 return false;
252 }
253
254 if (F2FS_I(inode)->extent_tree) {
255 struct extent_info *ei = &F2FS_I(inode)->extent_tree->largest;
256
257 if (ei->len &&
258 (!f2fs_is_valid_blkaddr(sbi, ei->blk,
259 DATA_GENERIC_ENHANCE) ||
260 !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1,
261 DATA_GENERIC_ENHANCE))) {
262 set_sbi_flag(sbi, SBI_NEED_FSCK);
263 f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix",
264 __func__, inode->i_ino,
265 ei->blk, ei->fofs, ei->len);
266 return false;
267 }
268 }
269
270 if (f2fs_has_inline_data(inode) &&
271 (!S_ISREG(inode->i_mode) && !S_ISLNK(inode->i_mode))) {
272 set_sbi_flag(sbi, SBI_NEED_FSCK);
273 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix",
274 __func__, inode->i_ino, inode->i_mode);
275 return false;
276 }
277
278 if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) {
279 set_sbi_flag(sbi, SBI_NEED_FSCK);
280 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix",
281 __func__, inode->i_ino, inode->i_mode);
282 return false;
283 }
284
285 return true;
286}
287
288static int do_read_inode(struct inode *inode)
289{
290 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
291 struct f2fs_inode_info *fi = F2FS_I(inode);
292 struct page *node_page;
293 struct f2fs_inode *ri;
294 projid_t i_projid;
295 int err;
296
297
298 if (f2fs_check_nid_range(sbi, inode->i_ino))
299 return -EINVAL;
300
301 node_page = f2fs_get_node_page(sbi, inode->i_ino);
302 if (IS_ERR(node_page))
303 return PTR_ERR(node_page);
304
305 ri = F2FS_INODE(node_page);
306
307 inode->i_mode = le16_to_cpu(ri->i_mode);
308 i_uid_write(inode, le32_to_cpu(ri->i_uid));
309 i_gid_write(inode, le32_to_cpu(ri->i_gid));
310 set_nlink(inode, le32_to_cpu(ri->i_links));
311 inode->i_size = le64_to_cpu(ri->i_size);
312 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
313
314 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
315 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
316 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
317 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
318 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
319 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
320 inode->i_generation = le32_to_cpu(ri->i_generation);
321 if (S_ISDIR(inode->i_mode))
322 fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
323 else if (S_ISREG(inode->i_mode))
324 fi->i_gc_failures[GC_FAILURE_PIN] =
325 le16_to_cpu(ri->i_gc_failures);
326 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
327 fi->i_flags = le32_to_cpu(ri->i_flags);
328 if (S_ISREG(inode->i_mode))
329 fi->i_flags &= ~F2FS_PROJINHERIT_FL;
330 fi->flags = 0;
331 fi->i_advise = ri->i_advise;
332 fi->i_pino = le32_to_cpu(ri->i_pino);
333 fi->i_dir_level = ri->i_dir_level;
334
335 if (f2fs_init_extent_tree(inode, &ri->i_ext))
336 set_page_dirty(node_page);
337
338 get_inline_info(inode, ri);
339
340 fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
341 le16_to_cpu(ri->i_extra_isize) : 0;
342
343 if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
344 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
345 } else if (f2fs_has_inline_xattr(inode) ||
346 f2fs_has_inline_dentry(inode)) {
347 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
348 } else {
349
350
351
352
353
354
355
356 fi->i_inline_xattr_size = 0;
357 }
358
359 if (!sanity_check_inode(inode, node_page)) {
360 f2fs_put_page(node_page, 1);
361 return -EFSCORRUPTED;
362 }
363
364
365 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
366 __recover_inline_status(inode, node_page);
367
368
369 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) {
370 set_cold_node(node_page, false);
371 set_page_dirty(node_page);
372 }
373
374
375 __get_inode_rdev(inode, ri);
376
377 if (S_ISREG(inode->i_mode)) {
378 err = __written_first_block(sbi, ri);
379 if (err < 0) {
380 f2fs_put_page(node_page, 1);
381 return err;
382 }
383 if (!err)
384 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
385 }
386
387 if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
388 fi->last_disk_size = inode->i_size;
389
390 if (fi->i_flags & F2FS_PROJINHERIT_FL)
391 set_inode_flag(inode, FI_PROJ_INHERIT);
392
393 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) &&
394 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
395 i_projid = (projid_t)le32_to_cpu(ri->i_projid);
396 else
397 i_projid = F2FS_DEF_PROJID;
398 fi->i_projid = make_kprojid(&init_user_ns, i_projid);
399
400 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) &&
401 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
402 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
403 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
404 }
405
406 F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
407 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
408 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
409 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
410 f2fs_put_page(node_page, 1);
411
412 stat_inc_inline_xattr(inode);
413 stat_inc_inline_inode(inode);
414 stat_inc_inline_dir(inode);
415
416 return 0;
417}
418
419struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
420{
421 struct f2fs_sb_info *sbi = F2FS_SB(sb);
422 struct inode *inode;
423 int ret = 0;
424
425 inode = iget_locked(sb, ino);
426 if (!inode)
427 return ERR_PTR(-ENOMEM);
428
429 if (!(inode->i_state & I_NEW)) {
430 trace_f2fs_iget(inode);
431 return inode;
432 }
433 if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
434 goto make_now;
435
436 ret = do_read_inode(inode);
437 if (ret)
438 goto bad_inode;
439make_now:
440 if (ino == F2FS_NODE_INO(sbi)) {
441 inode->i_mapping->a_ops = &f2fs_node_aops;
442 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
443 } else if (ino == F2FS_META_INO(sbi)) {
444 inode->i_mapping->a_ops = &f2fs_meta_aops;
445 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
446 } else if (S_ISREG(inode->i_mode)) {
447 inode->i_op = &f2fs_file_inode_operations;
448 inode->i_fop = &f2fs_file_operations;
449 inode->i_mapping->a_ops = &f2fs_dblock_aops;
450 } else if (S_ISDIR(inode->i_mode)) {
451 inode->i_op = &f2fs_dir_inode_operations;
452 inode->i_fop = &f2fs_dir_operations;
453 inode->i_mapping->a_ops = &f2fs_dblock_aops;
454 inode_nohighmem(inode);
455 } else if (S_ISLNK(inode->i_mode)) {
456 if (file_is_encrypt(inode))
457 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
458 else
459 inode->i_op = &f2fs_symlink_inode_operations;
460 inode_nohighmem(inode);
461 inode->i_mapping->a_ops = &f2fs_dblock_aops;
462 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
463 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
464 inode->i_op = &f2fs_special_inode_operations;
465 init_special_inode(inode, inode->i_mode, inode->i_rdev);
466 } else {
467 ret = -EIO;
468 goto bad_inode;
469 }
470 f2fs_set_inode_flags(inode);
471 unlock_new_inode(inode);
472 trace_f2fs_iget(inode);
473 return inode;
474
475bad_inode:
476 f2fs_inode_synced(inode);
477 iget_failed(inode);
478 trace_f2fs_iget_exit(inode, ret);
479 return ERR_PTR(ret);
480}
481
482struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
483{
484 struct inode *inode;
485retry:
486 inode = f2fs_iget(sb, ino);
487 if (IS_ERR(inode)) {
488 if (PTR_ERR(inode) == -ENOMEM) {
489 congestion_wait(BLK_RW_ASYNC, HZ/50);
490 goto retry;
491 }
492 }
493 return inode;
494}
495
496void f2fs_update_inode(struct inode *inode, struct page *node_page)
497{
498 struct f2fs_inode *ri;
499 struct extent_tree *et = F2FS_I(inode)->extent_tree;
500
501 f2fs_wait_on_page_writeback(node_page, NODE, true, true);
502 set_page_dirty(node_page);
503
504 f2fs_inode_synced(inode);
505
506 ri = F2FS_INODE(node_page);
507
508 ri->i_mode = cpu_to_le16(inode->i_mode);
509 ri->i_advise = F2FS_I(inode)->i_advise;
510 ri->i_uid = cpu_to_le32(i_uid_read(inode));
511 ri->i_gid = cpu_to_le32(i_gid_read(inode));
512 ri->i_links = cpu_to_le32(inode->i_nlink);
513 ri->i_size = cpu_to_le64(i_size_read(inode));
514 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
515
516 if (et) {
517 read_lock(&et->lock);
518 set_raw_extent(&et->largest, &ri->i_ext);
519 read_unlock(&et->lock);
520 } else {
521 memset(&ri->i_ext, 0, sizeof(ri->i_ext));
522 }
523 set_raw_inline(inode, ri);
524
525 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
526 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
527 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
528 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
529 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
530 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
531 if (S_ISDIR(inode->i_mode))
532 ri->i_current_depth =
533 cpu_to_le32(F2FS_I(inode)->i_current_depth);
534 else if (S_ISREG(inode->i_mode))
535 ri->i_gc_failures =
536 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]);
537 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
538 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
539 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
540 ri->i_generation = cpu_to_le32(inode->i_generation);
541 ri->i_dir_level = F2FS_I(inode)->i_dir_level;
542
543 if (f2fs_has_extra_attr(inode)) {
544 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
545
546 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)))
547 ri->i_inline_xattr_size =
548 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
549
550 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) &&
551 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
552 i_projid)) {
553 projid_t i_projid;
554
555 i_projid = from_kprojid(&init_user_ns,
556 F2FS_I(inode)->i_projid);
557 ri->i_projid = cpu_to_le32(i_projid);
558 }
559
560 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
561 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
562 i_crtime)) {
563 ri->i_crtime =
564 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec);
565 ri->i_crtime_nsec =
566 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
567 }
568 }
569
570 __set_inode_rdev(inode, ri);
571
572
573 if (inode->i_nlink == 0)
574 clear_inline_node(node_page);
575
576 F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
577 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
578 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
579 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
580
581#ifdef CONFIG_F2FS_CHECK_FS
582 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
583#endif
584}
585
586void f2fs_update_inode_page(struct inode *inode)
587{
588 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
589 struct page *node_page;
590retry:
591 node_page = f2fs_get_node_page(sbi, inode->i_ino);
592 if (IS_ERR(node_page)) {
593 int err = PTR_ERR(node_page);
594 if (err == -ENOMEM) {
595 cond_resched();
596 goto retry;
597 } else if (err != -ENOENT) {
598 f2fs_stop_checkpoint(sbi, false);
599 }
600 return;
601 }
602 f2fs_update_inode(inode, node_page);
603 f2fs_put_page(node_page, 1);
604}
605
606int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
607{
608 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
609
610 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
611 inode->i_ino == F2FS_META_INO(sbi))
612 return 0;
613
614 if (!is_inode_flag_set(inode, FI_DIRTY_INODE))
615 return 0;
616
617 if (f2fs_is_checkpoint_ready(sbi))
618 return -ENOSPC;
619
620
621
622
623
624 f2fs_update_inode_page(inode);
625 if (wbc && wbc->nr_to_write)
626 f2fs_balance_fs(sbi, true);
627 return 0;
628}
629
630
631
632
633void f2fs_evict_inode(struct inode *inode)
634{
635 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
636 nid_t xnid = F2FS_I(inode)->i_xattr_nid;
637 int err = 0;
638
639
640 if (f2fs_is_atomic_file(inode))
641 f2fs_drop_inmem_pages(inode);
642
643 trace_f2fs_evict_inode(inode);
644 truncate_inode_pages_final(&inode->i_data);
645
646 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
647 inode->i_ino == F2FS_META_INO(sbi))
648 goto out_clear;
649
650 f2fs_bug_on(sbi, get_dirty_pages(inode));
651 f2fs_remove_dirty_inode(inode);
652
653 f2fs_destroy_extent_tree(inode);
654
655 if (inode->i_nlink || is_bad_inode(inode))
656 goto no_delete;
657
658 err = dquot_initialize(inode);
659 if (err) {
660 err = 0;
661 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
662 }
663
664 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
665 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
666 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
667
668 sb_start_intwrite(inode->i_sb);
669 set_inode_flag(inode, FI_NO_ALLOC);
670 i_size_write(inode, 0);
671retry:
672 if (F2FS_HAS_BLOCKS(inode))
673 err = f2fs_truncate(inode);
674
675 if (time_to_inject(sbi, FAULT_EVICT_INODE)) {
676 f2fs_show_injection_info(FAULT_EVICT_INODE);
677 err = -EIO;
678 }
679
680 if (!err) {
681 f2fs_lock_op(sbi);
682 err = f2fs_remove_inode_page(inode);
683 f2fs_unlock_op(sbi);
684 if (err == -ENOENT)
685 err = 0;
686 }
687
688
689 if (err == -ENOMEM) {
690 err = 0;
691 goto retry;
692 }
693
694 if (err) {
695 f2fs_update_inode_page(inode);
696 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
697 }
698 sb_end_intwrite(inode->i_sb);
699no_delete:
700 dquot_drop(inode);
701
702 stat_dec_inline_xattr(inode);
703 stat_dec_inline_dir(inode);
704 stat_dec_inline_inode(inode);
705
706 if (likely(!is_set_ckpt_flags(sbi, CP_ERROR_FLAG) &&
707 !is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
708 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
709 else
710 f2fs_inode_synced(inode);
711
712
713 if (inode->i_ino)
714 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
715 inode->i_ino);
716 if (xnid)
717 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
718 if (inode->i_nlink) {
719 if (is_inode_flag_set(inode, FI_APPEND_WRITE))
720 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
721 if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
722 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
723 }
724 if (is_inode_flag_set(inode, FI_FREE_NID)) {
725 f2fs_alloc_nid_failed(sbi, inode->i_ino);
726 clear_inode_flag(inode, FI_FREE_NID);
727 } else {
728
729
730
731
732
733 }
734out_clear:
735 fscrypt_put_encryption_info(inode);
736 clear_inode(inode);
737}
738
739
740void f2fs_handle_failed_inode(struct inode *inode)
741{
742 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
743 struct node_info ni;
744 int err;
745
746
747
748
749
750 clear_nlink(inode);
751
752
753
754
755
756 f2fs_update_inode_page(inode);
757 f2fs_inode_synced(inode);
758
759
760 unlock_new_inode(inode);
761
762
763
764
765
766
767 err = f2fs_get_node_info(sbi, inode->i_ino, &ni);
768 if (err) {
769 set_sbi_flag(sbi, SBI_NEED_FSCK);
770 f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
771 goto out;
772 }
773
774 if (ni.blk_addr != NULL_ADDR) {
775 err = f2fs_acquire_orphan_inode(sbi);
776 if (err) {
777 set_sbi_flag(sbi, SBI_NEED_FSCK);
778 f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix.");
779 } else {
780 f2fs_add_orphan_inode(inode);
781 }
782 f2fs_alloc_nid_done(sbi, inode->i_ino);
783 } else {
784 set_inode_flag(inode, FI_FREE_NID);
785 }
786
787out:
788 f2fs_unlock_op(sbi);
789
790
791 iput(inode);
792}
793
