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fanotify: merge duplicate events on parent and child
[linux/fpc-iii.git] / fs / f2fs / inode.c
blob901e9f4ce12b5282ffc74d3b00a0822581dacf48
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * fs/f2fs/inode.c
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
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
21 void 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
32 void 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 if (file_is_verity(inode))
50 new_fl |= S_VERITY;
51 if (flags & F2FS_CASEFOLD_FL)
52 new_fl |= S_CASEFOLD;
53 inode_set_flags(inode, new_fl,
54 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
55 S_ENCRYPTED|S_VERITY|S_CASEFOLD);
56 }
57
58 static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
59 {
60 int extra_size = get_extra_isize(inode);
61
62 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
63 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
64 if (ri->i_addr[extra_size])
65 inode->i_rdev = old_decode_dev(
66 le32_to_cpu(ri->i_addr[extra_size]));
67 else
68 inode->i_rdev = new_decode_dev(
69 le32_to_cpu(ri->i_addr[extra_size + 1]));
70 }
71 }
72
73 static int __written_first_block(struct f2fs_sb_info *sbi,
74 struct f2fs_inode *ri)
75 {
76 block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]);
77
78 if (!__is_valid_data_blkaddr(addr))
79 return 1;
80 if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE))
81 return -EFSCORRUPTED;
82 return 0;
83 }
84
85 static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
86 {
87 int extra_size = get_extra_isize(inode);
88
89 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
90 if (old_valid_dev(inode->i_rdev)) {
91 ri->i_addr[extra_size] =
92 cpu_to_le32(old_encode_dev(inode->i_rdev));
93 ri->i_addr[extra_size + 1] = 0;
94 } else {
95 ri->i_addr[extra_size] = 0;
96 ri->i_addr[extra_size + 1] =
97 cpu_to_le32(new_encode_dev(inode->i_rdev));
98 ri->i_addr[extra_size + 2] = 0;
99 }
100 }
101 }
102
103 static void __recover_inline_status(struct inode *inode, struct page *ipage)
104 {
105 void *inline_data = inline_data_addr(inode, ipage);
106 __le32 *start = inline_data;
107 __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32);
108
109 while (start < end) {
110 if (*start++) {
111 f2fs_wait_on_page_writeback(ipage, NODE, true, true);
112
113 set_inode_flag(inode, FI_DATA_EXIST);
114 set_raw_inline(inode, F2FS_INODE(ipage));
115 set_page_dirty(ipage);
116 return;
117 }
118 }
119 return;
120 }
121
122 static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
123 {
124 struct f2fs_inode *ri = &F2FS_NODE(page)->i;
125
126 if (!f2fs_sb_has_inode_chksum(sbi))
127 return false;
128
129 if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR))
130 return false;
131
132 if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize),
133 i_inode_checksum))
134 return false;
135
136 return true;
137 }
138
139 static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
140 {
141 struct f2fs_node *node = F2FS_NODE(page);
142 struct f2fs_inode *ri = &node->i;
143 __le32 ino = node->footer.ino;
144 __le32 gen = ri->i_generation;
145 __u32 chksum, chksum_seed;
146 __u32 dummy_cs = 0;
147 unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum);
148 unsigned int cs_size = sizeof(dummy_cs);
149
150 chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino,
151 sizeof(ino));
152 chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen));
153
154 chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset);
155 chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size);
156 offset += cs_size;
157 chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset,
158 F2FS_BLKSIZE - offset);
159 return chksum;
160 }
161
162 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
163 {
164 struct f2fs_inode *ri;
165 __u32 provided, calculated;
166
167 if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)))
168 return true;
169
170 #ifdef CONFIG_F2FS_CHECK_FS
171 if (!f2fs_enable_inode_chksum(sbi, page))
172 #else
173 if (!f2fs_enable_inode_chksum(sbi, page) ||
174 PageDirty(page) || PageWriteback(page))
175 #endif
176 return true;
177
178 ri = &F2FS_NODE(page)->i;
179 provided = le32_to_cpu(ri->i_inode_checksum);
180 calculated = f2fs_inode_chksum(sbi, page);
181
182 if (provided != calculated)
183 f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x",
184 page->index, ino_of_node(page), provided, calculated);
185
186 return provided == calculated;
187 }
188
189 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
190 {
191 struct f2fs_inode *ri = &F2FS_NODE(page)->i;
192
193 if (!f2fs_enable_inode_chksum(sbi, page))
194 return;
195
196 ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
197 }
198
199 static bool sanity_check_inode(struct inode *inode, struct page *node_page)
200 {
201 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
202 struct f2fs_inode_info *fi = F2FS_I(inode);
203 struct f2fs_inode *ri = F2FS_INODE(node_page);
204 unsigned long long iblocks;
205
206 iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks);
207 if (!iblocks) {
208 set_sbi_flag(sbi, SBI_NEED_FSCK);
209 f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.",
210 __func__, inode->i_ino, iblocks);
211 return false;
212 }
213
214 if (ino_of_node(node_page) != nid_of_node(node_page)) {
215 set_sbi_flag(sbi, SBI_NEED_FSCK);
216 f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.",
217 __func__, inode->i_ino,
218 ino_of_node(node_page), nid_of_node(node_page));
219 return false;
220 }
221
222 if (f2fs_sb_has_flexible_inline_xattr(sbi)
223 && !f2fs_has_extra_attr(inode)) {
224 set_sbi_flag(sbi, SBI_NEED_FSCK);
225 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.",
226 __func__, inode->i_ino);
227 return false;
228 }
229
230 if (f2fs_has_extra_attr(inode) &&
231 !f2fs_sb_has_extra_attr(sbi)) {
232 set_sbi_flag(sbi, SBI_NEED_FSCK);
233 f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off",
234 __func__, inode->i_ino);
235 return false;
236 }
237
238 if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE ||
239 fi->i_extra_isize % sizeof(__le32)) {
240 set_sbi_flag(sbi, SBI_NEED_FSCK);
241 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu",
242 __func__, inode->i_ino, fi->i_extra_isize,
243 F2FS_TOTAL_EXTRA_ATTR_SIZE);
244 return false;
245 }
246
247 if (f2fs_has_extra_attr(inode) &&
248 f2fs_sb_has_flexible_inline_xattr(sbi) &&
249 f2fs_has_inline_xattr(inode) &&
250 (!fi->i_inline_xattr_size ||
251 fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) {
252 set_sbi_flag(sbi, SBI_NEED_FSCK);
253 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %zu",
254 __func__, inode->i_ino, fi->i_inline_xattr_size,
255 MAX_INLINE_XATTR_SIZE);
256 return false;
257 }
258
259 if (F2FS_I(inode)->extent_tree) {
260 struct extent_info *ei = &F2FS_I(inode)->extent_tree->largest;
261
262 if (ei->len &&
263 (!f2fs_is_valid_blkaddr(sbi, ei->blk,
264 DATA_GENERIC_ENHANCE) ||
265 !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1,
266 DATA_GENERIC_ENHANCE))) {
267 set_sbi_flag(sbi, SBI_NEED_FSCK);
268 f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix",
269 __func__, inode->i_ino,
270 ei->blk, ei->fofs, ei->len);
271 return false;
272 }
273 }
274
275 if (f2fs_has_inline_data(inode) &&
276 (!S_ISREG(inode->i_mode) && !S_ISLNK(inode->i_mode))) {
277 set_sbi_flag(sbi, SBI_NEED_FSCK);
278 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix",
279 __func__, inode->i_ino, inode->i_mode);
280 return false;
281 }
282
283 if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) {
284 set_sbi_flag(sbi, SBI_NEED_FSCK);
285 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix",
286 __func__, inode->i_ino, inode->i_mode);
287 return false;
288 }
289
290 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
291 fi->i_flags & F2FS_COMPR_FL &&
292 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
293 i_log_cluster_size)) {
294 if (ri->i_compress_algorithm >= COMPRESS_MAX)
295 return false;
296 if (le64_to_cpu(ri->i_compr_blocks) > inode->i_blocks)
297 return false;
298 if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
299 ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE)
300 return false;
301 }
302
303 return true;
304 }
305
306 static int do_read_inode(struct inode *inode)
307 {
308 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
309 struct f2fs_inode_info *fi = F2FS_I(inode);
310 struct page *node_page;
311 struct f2fs_inode *ri;
312 projid_t i_projid;
313 int err;
314
315 /* Check if ino is within scope */
316 if (f2fs_check_nid_range(sbi, inode->i_ino))
317 return -EINVAL;
318
319 node_page = f2fs_get_node_page(sbi, inode->i_ino);
320 if (IS_ERR(node_page))
321 return PTR_ERR(node_page);
322
323 ri = F2FS_INODE(node_page);
324
325 inode->i_mode = le16_to_cpu(ri->i_mode);
326 i_uid_write(inode, le32_to_cpu(ri->i_uid));
327 i_gid_write(inode, le32_to_cpu(ri->i_gid));
328 set_nlink(inode, le32_to_cpu(ri->i_links));
329 inode->i_size = le64_to_cpu(ri->i_size);
330 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
331
332 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
333 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
334 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
335 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
336 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
337 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
338 inode->i_generation = le32_to_cpu(ri->i_generation);
339 if (S_ISDIR(inode->i_mode))
340 fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
341 else if (S_ISREG(inode->i_mode))
342 fi->i_gc_failures[GC_FAILURE_PIN] =
343 le16_to_cpu(ri->i_gc_failures);
344 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
345 fi->i_flags = le32_to_cpu(ri->i_flags);
346 if (S_ISREG(inode->i_mode))
347 fi->i_flags &= ~F2FS_PROJINHERIT_FL;
348 bitmap_zero(fi->flags, FI_MAX);
349 fi->i_advise = ri->i_advise;
350 fi->i_pino = le32_to_cpu(ri->i_pino);
351 fi->i_dir_level = ri->i_dir_level;
352
353 if (f2fs_init_extent_tree(inode, &ri->i_ext))
354 set_page_dirty(node_page);
355
356 get_inline_info(inode, ri);
357
358 fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
359 le16_to_cpu(ri->i_extra_isize) : 0;
360
361 if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
362 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
363 } else if (f2fs_has_inline_xattr(inode) ||
364 f2fs_has_inline_dentry(inode)) {
365 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
366 } else {
367
368 /*
369 * Previous inline data or directory always reserved 200 bytes
370 * in inode layout, even if inline_xattr is disabled. In order
371 * to keep inline_dentry's structure for backward compatibility,
372 * we get the space back only from inline_data.
373 */
374 fi->i_inline_xattr_size = 0;
375 }
376
377 if (!sanity_check_inode(inode, node_page)) {
378 f2fs_put_page(node_page, 1);
379 return -EFSCORRUPTED;
380 }
381
382 /* check data exist */
383 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
384 __recover_inline_status(inode, node_page);
385
386 /* try to recover cold bit for non-dir inode */
387 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) {
388 set_cold_node(node_page, false);
389 set_page_dirty(node_page);
390 }
391
392 /* get rdev by using inline_info */
393 __get_inode_rdev(inode, ri);
394
395 if (S_ISREG(inode->i_mode)) {
396 err = __written_first_block(sbi, ri);
397 if (err < 0) {
398 f2fs_put_page(node_page, 1);
399 return err;
400 }
401 if (!err)
402 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
403 }
404
405 if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
406 fi->last_disk_size = inode->i_size;
407
408 if (fi->i_flags & F2FS_PROJINHERIT_FL)
409 set_inode_flag(inode, FI_PROJ_INHERIT);
410
411 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) &&
412 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
413 i_projid = (projid_t)le32_to_cpu(ri->i_projid);
414 else
415 i_projid = F2FS_DEF_PROJID;
416 fi->i_projid = make_kprojid(&init_user_ns, i_projid);
417
418 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) &&
419 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
420 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
421 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
422 }
423
424 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
425 (fi->i_flags & F2FS_COMPR_FL)) {
426 if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
427 i_log_cluster_size)) {
428 fi->i_compr_blocks = le64_to_cpu(ri->i_compr_blocks);
429 fi->i_compress_algorithm = ri->i_compress_algorithm;
430 fi->i_log_cluster_size = ri->i_log_cluster_size;
431 fi->i_cluster_size = 1 << fi->i_log_cluster_size;
432 set_inode_flag(inode, FI_COMPRESSED_FILE);
433 }
434 }
435
436 F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
437 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
438 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
439 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
440 f2fs_put_page(node_page, 1);
441
442 stat_inc_inline_xattr(inode);
443 stat_inc_inline_inode(inode);
444 stat_inc_inline_dir(inode);
445 stat_inc_compr_inode(inode);
446 stat_add_compr_blocks(inode, F2FS_I(inode)->i_compr_blocks);
447
448 return 0;
449 }
450
451 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
452 {
453 struct f2fs_sb_info *sbi = F2FS_SB(sb);
454 struct inode *inode;
455 int ret = 0;
456
457 inode = iget_locked(sb, ino);
458 if (!inode)
459 return ERR_PTR(-ENOMEM);
460
461 if (!(inode->i_state & I_NEW)) {
462 trace_f2fs_iget(inode);
463 return inode;
464 }
465 if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
466 goto make_now;
467
468 ret = do_read_inode(inode);
469 if (ret)
470 goto bad_inode;
471 make_now:
472 if (ino == F2FS_NODE_INO(sbi)) {
473 inode->i_mapping->a_ops = &f2fs_node_aops;
474 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
475 } else if (ino == F2FS_META_INO(sbi)) {
476 inode->i_mapping->a_ops = &f2fs_meta_aops;
477 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
478 } else if (S_ISREG(inode->i_mode)) {
479 inode->i_op = &f2fs_file_inode_operations;
480 inode->i_fop = &f2fs_file_operations;
481 inode->i_mapping->a_ops = &f2fs_dblock_aops;
482 } else if (S_ISDIR(inode->i_mode)) {
483 inode->i_op = &f2fs_dir_inode_operations;
484 inode->i_fop = &f2fs_dir_operations;
485 inode->i_mapping->a_ops = &f2fs_dblock_aops;
486 inode_nohighmem(inode);
487 } else if (S_ISLNK(inode->i_mode)) {
488 if (file_is_encrypt(inode))
489 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
490 else
491 inode->i_op = &f2fs_symlink_inode_operations;
492 inode_nohighmem(inode);
493 inode->i_mapping->a_ops = &f2fs_dblock_aops;
494 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
495 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
496 inode->i_op = &f2fs_special_inode_operations;
497 init_special_inode(inode, inode->i_mode, inode->i_rdev);
498 } else {
499 ret = -EIO;
500 goto bad_inode;
501 }
502 f2fs_set_inode_flags(inode);
503 unlock_new_inode(inode);
504 trace_f2fs_iget(inode);
505 return inode;
506
507 bad_inode:
508 f2fs_inode_synced(inode);
509 iget_failed(inode);
510 trace_f2fs_iget_exit(inode, ret);
511 return ERR_PTR(ret);
512 }
513
514 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
515 {
516 struct inode *inode;
517 retry:
518 inode = f2fs_iget(sb, ino);
519 if (IS_ERR(inode)) {
520 if (PTR_ERR(inode) == -ENOMEM) {
521 congestion_wait(BLK_RW_ASYNC, HZ/50);
522 goto retry;
523 }
524 }
525 return inode;
526 }
527
528 void f2fs_update_inode(struct inode *inode, struct page *node_page)
529 {
530 struct f2fs_inode *ri;
531 struct extent_tree *et = F2FS_I(inode)->extent_tree;
532
533 f2fs_wait_on_page_writeback(node_page, NODE, true, true);
534 set_page_dirty(node_page);
535
536 f2fs_inode_synced(inode);
537
538 ri = F2FS_INODE(node_page);
539
540 ri->i_mode = cpu_to_le16(inode->i_mode);
541 ri->i_advise = F2FS_I(inode)->i_advise;
542 ri->i_uid = cpu_to_le32(i_uid_read(inode));
543 ri->i_gid = cpu_to_le32(i_gid_read(inode));
544 ri->i_links = cpu_to_le32(inode->i_nlink);
545 ri->i_size = cpu_to_le64(i_size_read(inode));
546 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
547
548 if (et) {
549 read_lock(&et->lock);
550 set_raw_extent(&et->largest, &ri->i_ext);
551 read_unlock(&et->lock);
552 } else {
553 memset(&ri->i_ext, 0, sizeof(ri->i_ext));
554 }
555 set_raw_inline(inode, ri);
556
557 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
558 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
559 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
560 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
561 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
562 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
563 if (S_ISDIR(inode->i_mode))
564 ri->i_current_depth =
565 cpu_to_le32(F2FS_I(inode)->i_current_depth);
566 else if (S_ISREG(inode->i_mode))
567 ri->i_gc_failures =
568 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]);
569 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
570 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
571 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
572 ri->i_generation = cpu_to_le32(inode->i_generation);
573 ri->i_dir_level = F2FS_I(inode)->i_dir_level;
574
575 if (f2fs_has_extra_attr(inode)) {
576 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
577
578 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)))
579 ri->i_inline_xattr_size =
580 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
581
582 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) &&
583 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
584 i_projid)) {
585 projid_t i_projid;
586
587 i_projid = from_kprojid(&init_user_ns,
588 F2FS_I(inode)->i_projid);
589 ri->i_projid = cpu_to_le32(i_projid);
590 }
591
592 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
593 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
594 i_crtime)) {
595 ri->i_crtime =
596 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec);
597 ri->i_crtime_nsec =
598 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
599 }
600
601 if (f2fs_sb_has_compression(F2FS_I_SB(inode)) &&
602 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
603 i_log_cluster_size)) {
604 ri->i_compr_blocks =
605 cpu_to_le64(F2FS_I(inode)->i_compr_blocks);
606 ri->i_compress_algorithm =
607 F2FS_I(inode)->i_compress_algorithm;
608 ri->i_log_cluster_size =
609 F2FS_I(inode)->i_log_cluster_size;
610 }
611 }
612
613 __set_inode_rdev(inode, ri);
614
615 /* deleted inode */
616 if (inode->i_nlink == 0)
617 clear_inline_node(node_page);
618
619 F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
620 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
621 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
622 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
623
624 #ifdef CONFIG_F2FS_CHECK_FS
625 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
626 #endif
627 }
628
629 void f2fs_update_inode_page(struct inode *inode)
630 {
631 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
632 struct page *node_page;
633 retry:
634 node_page = f2fs_get_node_page(sbi, inode->i_ino);
635 if (IS_ERR(node_page)) {
636 int err = PTR_ERR(node_page);
637 if (err == -ENOMEM) {
638 cond_resched();
639 goto retry;
640 } else if (err != -ENOENT) {
641 f2fs_stop_checkpoint(sbi, false);
642 }
643 return;
644 }
645 f2fs_update_inode(inode, node_page);
646 f2fs_put_page(node_page, 1);
647 }
648
649 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
650 {
651 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
652
653 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
654 inode->i_ino == F2FS_META_INO(sbi))
655 return 0;
656
657 /*
658 * atime could be updated without dirtying f2fs inode in lazytime mode
659 */
660 if (f2fs_is_time_consistent(inode) &&
661 !is_inode_flag_set(inode, FI_DIRTY_INODE))
662 return 0;
663
664 if (!f2fs_is_checkpoint_ready(sbi))
665 return -ENOSPC;
666
667 /*
668 * We need to balance fs here to prevent from producing dirty node pages
669 * during the urgent cleaning time when runing out of free sections.
670 */
671 f2fs_update_inode_page(inode);
672 if (wbc && wbc->nr_to_write)
673 f2fs_balance_fs(sbi, true);
674 return 0;
675 }
676
677 /*
678 * Called at the last iput() if i_nlink is zero
679 */
680 void f2fs_evict_inode(struct inode *inode)
681 {
682 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
683 nid_t xnid = F2FS_I(inode)->i_xattr_nid;
684 int err = 0;
685
686 /* some remained atomic pages should discarded */
687 if (f2fs_is_atomic_file(inode))
688 f2fs_drop_inmem_pages(inode);
689
690 trace_f2fs_evict_inode(inode);
691 truncate_inode_pages_final(&inode->i_data);
692
693 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
694 inode->i_ino == F2FS_META_INO(sbi))
695 goto out_clear;
696
697 f2fs_bug_on(sbi, get_dirty_pages(inode));
698 f2fs_remove_dirty_inode(inode);
699
700 f2fs_destroy_extent_tree(inode);
701
702 if (inode->i_nlink || is_bad_inode(inode))
703 goto no_delete;
704
705 err = dquot_initialize(inode);
706 if (err) {
707 err = 0;
708 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
709 }
710
711 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
712 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
713 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
714
715 sb_start_intwrite(inode->i_sb);
716 set_inode_flag(inode, FI_NO_ALLOC);
717 i_size_write(inode, 0);
718 retry:
719 if (F2FS_HAS_BLOCKS(inode))
720 err = f2fs_truncate(inode);
721
722 if (time_to_inject(sbi, FAULT_EVICT_INODE)) {
723 f2fs_show_injection_info(sbi, FAULT_EVICT_INODE);
724 err = -EIO;
725 }
726
727 if (!err) {
728 f2fs_lock_op(sbi);
729 err = f2fs_remove_inode_page(inode);
730 f2fs_unlock_op(sbi);
731 if (err == -ENOENT)
732 err = 0;
733 }
734
735 /* give more chances, if ENOMEM case */
736 if (err == -ENOMEM) {
737 err = 0;
738 goto retry;
739 }
740
741 if (err) {
742 f2fs_update_inode_page(inode);
743 if (dquot_initialize_needed(inode))
744 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
745 }
746 sb_end_intwrite(inode->i_sb);
747 no_delete:
748 dquot_drop(inode);
749
750 stat_dec_inline_xattr(inode);
751 stat_dec_inline_dir(inode);
752 stat_dec_inline_inode(inode);
753 stat_dec_compr_inode(inode);
754 stat_sub_compr_blocks(inode, F2FS_I(inode)->i_compr_blocks);
755
756 if (likely(!f2fs_cp_error(sbi) &&
757 !is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
758 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
759 else
760 f2fs_inode_synced(inode);
761
762 /* ino == 0, if f2fs_new_inode() was failed t*/
763 if (inode->i_ino)
764 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
765 inode->i_ino);
766 if (xnid)
767 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
768 if (inode->i_nlink) {
769 if (is_inode_flag_set(inode, FI_APPEND_WRITE))
770 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
771 if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
772 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
773 }
774 if (is_inode_flag_set(inode, FI_FREE_NID)) {
775 f2fs_alloc_nid_failed(sbi, inode->i_ino);
776 clear_inode_flag(inode, FI_FREE_NID);
777 } else {
778 /*
779 * If xattr nid is corrupted, we can reach out error condition,
780 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
781 * In that case, f2fs_check_nid_range() is enough to give a clue.
782 */
783 }
784 out_clear:
785 fscrypt_put_encryption_info(inode);
786 fsverity_cleanup_inode(inode);
787 clear_inode(inode);
788 }
789
790 /* caller should call f2fs_lock_op() */
791 void f2fs_handle_failed_inode(struct inode *inode)
792 {
793 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
794 struct node_info ni;
795 int err;
796
797 /*
798 * clear nlink of inode in order to release resource of inode
799 * immediately.
800 */
801 clear_nlink(inode);
802
803 /*
804 * we must call this to avoid inode being remained as dirty, resulting
805 * in a panic when flushing dirty inodes in gdirty_list.
806 */
807 f2fs_update_inode_page(inode);
808 f2fs_inode_synced(inode);
809
810 /* don't make bad inode, since it becomes a regular file. */
811 unlock_new_inode(inode);
812
813 /*
814 * Note: we should add inode to orphan list before f2fs_unlock_op()
815 * so we can prevent losing this orphan when encoutering checkpoint
816 * and following suddenly power-off.
817 */
818 err = f2fs_get_node_info(sbi, inode->i_ino, &ni);
819 if (err) {
820 set_sbi_flag(sbi, SBI_NEED_FSCK);
821 f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
822 goto out;
823 }
824
825 if (ni.blk_addr != NULL_ADDR) {
826 err = f2fs_acquire_orphan_inode(sbi);
827 if (err) {
828 set_sbi_flag(sbi, SBI_NEED_FSCK);
829 f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix.");
830 } else {
831 f2fs_add_orphan_inode(inode);
832 }
833 f2fs_alloc_nid_done(sbi, inode->i_ino);
834 } else {
835 set_inode_flag(inode, FI_FREE_NID);
836 }
837
838 out:
839 f2fs_unlock_op(sbi);
840
841 /* iput will drop the inode object */
842 iput(inode);
843 }
Linux with added FPC-III support