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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
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 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
58static 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
73static 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
85static 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
103static 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
122static 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
139static __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
162bool 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
189void 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
199static 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 f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
296 "compress algorithm: %u, run fsck to fix",
297 __func__, inode->i_ino,
298 ri->i_compress_algorithm);
299 return false;
300 }
301 if (le64_to_cpu(ri->i_compr_blocks) >
302 SECTOR_TO_BLOCK(inode->i_blocks)) {
303 f2fs_warn(sbi, "%s: inode (ino=%lx) has inconsistent "
304 "i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix",
305 __func__, inode->i_ino,
306 le64_to_cpu(ri->i_compr_blocks),
307 SECTOR_TO_BLOCK(inode->i_blocks));
308 return false;
309 }
310 if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
311 ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) {
312 f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
313 "log cluster size: %u, run fsck to fix",
314 __func__, inode->i_ino,
315 ri->i_log_cluster_size);
316 return false;
317 }
318 }
319
320 return true;
321}
322
323static int do_read_inode(struct inode *inode)
324{
325 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
326 struct f2fs_inode_info *fi = F2FS_I(inode);
327 struct page *node_page;
328 struct f2fs_inode *ri;
329 projid_t i_projid;
330 int err;
331
332 /* Check if ino is within scope */
333 if (f2fs_check_nid_range(sbi, inode->i_ino))
334 return -EINVAL;
335
336 node_page = f2fs_get_node_page(sbi, inode->i_ino);
337 if (IS_ERR(node_page))
338 return PTR_ERR(node_page);
339
340 ri = F2FS_INODE(node_page);
341
342 inode->i_mode = le16_to_cpu(ri->i_mode);
343 i_uid_write(inode, le32_to_cpu(ri->i_uid));
344 i_gid_write(inode, le32_to_cpu(ri->i_gid));
345 set_nlink(inode, le32_to_cpu(ri->i_links));
346 inode->i_size = le64_to_cpu(ri->i_size);
347 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
348
349 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
350 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
351 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
352 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
353 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
354 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
355 inode->i_generation = le32_to_cpu(ri->i_generation);
356 if (S_ISDIR(inode->i_mode))
357 fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
358 else if (S_ISREG(inode->i_mode))
359 fi->i_gc_failures[GC_FAILURE_PIN] =
360 le16_to_cpu(ri->i_gc_failures);
361 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
362 fi->i_flags = le32_to_cpu(ri->i_flags);
363 if (S_ISREG(inode->i_mode))
364 fi->i_flags &= ~F2FS_PROJINHERIT_FL;
365 bitmap_zero(fi->flags, FI_MAX);
366 fi->i_advise = ri->i_advise;
367 fi->i_pino = le32_to_cpu(ri->i_pino);
368 fi->i_dir_level = ri->i_dir_level;
369
370 f2fs_init_extent_tree(inode, node_page);
371
372 get_inline_info(inode, ri);
373
374 fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
375 le16_to_cpu(ri->i_extra_isize) : 0;
376
377 if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
378 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
379 } else if (f2fs_has_inline_xattr(inode) ||
380 f2fs_has_inline_dentry(inode)) {
381 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
382 } else {
383
384 /*
385 * Previous inline data or directory always reserved 200 bytes
386 * in inode layout, even if inline_xattr is disabled. In order
387 * to keep inline_dentry's structure for backward compatibility,
388 * we get the space back only from inline_data.
389 */
390 fi->i_inline_xattr_size = 0;
391 }
392
393 if (!sanity_check_inode(inode, node_page)) {
394 f2fs_put_page(node_page, 1);
395 return -EFSCORRUPTED;
396 }
397
398 /* check data exist */
399 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
400 __recover_inline_status(inode, node_page);
401
402 /* try to recover cold bit for non-dir inode */
403 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) {
404 f2fs_wait_on_page_writeback(node_page, NODE, true, true);
405 set_cold_node(node_page, false);
406 set_page_dirty(node_page);
407 }
408
409 /* get rdev by using inline_info */
410 __get_inode_rdev(inode, ri);
411
412 if (S_ISREG(inode->i_mode)) {
413 err = __written_first_block(sbi, ri);
414 if (err < 0) {
415 f2fs_put_page(node_page, 1);
416 return err;
417 }
418 if (!err)
419 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
420 }
421
422 if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
423 fi->last_disk_size = inode->i_size;
424
425 if (fi->i_flags & F2FS_PROJINHERIT_FL)
426 set_inode_flag(inode, FI_PROJ_INHERIT);
427
428 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) &&
429 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
430 i_projid = (projid_t)le32_to_cpu(ri->i_projid);
431 else
432 i_projid = F2FS_DEF_PROJID;
433 fi->i_projid = make_kprojid(&init_user_ns, i_projid);
434
435 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) &&
436 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
437 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
438 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
439 }
440
441 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
442 (fi->i_flags & F2FS_COMPR_FL)) {
443 if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
444 i_log_cluster_size)) {
445 fi->i_compr_blocks = le64_to_cpu(ri->i_compr_blocks);
446 fi->i_compress_algorithm = ri->i_compress_algorithm;
447 fi->i_log_cluster_size = ri->i_log_cluster_size;
448 fi->i_cluster_size = 1 << fi->i_log_cluster_size;
449 set_inode_flag(inode, FI_COMPRESSED_FILE);
450 }
451 }
452
453 F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
454 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
455 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
456 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
457 f2fs_put_page(node_page, 1);
458
459 stat_inc_inline_xattr(inode);
460 stat_inc_inline_inode(inode);
461 stat_inc_inline_dir(inode);
462 stat_inc_compr_inode(inode);
463 stat_add_compr_blocks(inode, F2FS_I(inode)->i_compr_blocks);
464
465 return 0;
466}
467
468struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
469{
470 struct f2fs_sb_info *sbi = F2FS_SB(sb);
471 struct inode *inode;
472 int ret = 0;
473
474 inode = iget_locked(sb, ino);
475 if (!inode)
476 return ERR_PTR(-ENOMEM);
477
478 if (!(inode->i_state & I_NEW)) {
479 trace_f2fs_iget(inode);
480 return inode;
481 }
482 if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
483 goto make_now;
484
485 ret = do_read_inode(inode);
486 if (ret)
487 goto bad_inode;
488make_now:
489 if (ino == F2FS_NODE_INO(sbi)) {
490 inode->i_mapping->a_ops = &f2fs_node_aops;
491 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
492 } else if (ino == F2FS_META_INO(sbi)) {
493 inode->i_mapping->a_ops = &f2fs_meta_aops;
494 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
495 } else if (S_ISREG(inode->i_mode)) {
496 inode->i_op = &f2fs_file_inode_operations;
497 inode->i_fop = &f2fs_file_operations;
498 inode->i_mapping->a_ops = &f2fs_dblock_aops;
499 } else if (S_ISDIR(inode->i_mode)) {
500 inode->i_op = &f2fs_dir_inode_operations;
501 inode->i_fop = &f2fs_dir_operations;
502 inode->i_mapping->a_ops = &f2fs_dblock_aops;
503 inode_nohighmem(inode);
504 } else if (S_ISLNK(inode->i_mode)) {
505 if (file_is_encrypt(inode))
506 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
507 else
508 inode->i_op = &f2fs_symlink_inode_operations;
509 inode_nohighmem(inode);
510 inode->i_mapping->a_ops = &f2fs_dblock_aops;
511 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
512 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
513 inode->i_op = &f2fs_special_inode_operations;
514 init_special_inode(inode, inode->i_mode, inode->i_rdev);
515 } else {
516 ret = -EIO;
517 goto bad_inode;
518 }
519 f2fs_set_inode_flags(inode);
520 unlock_new_inode(inode);
521 trace_f2fs_iget(inode);
522 return inode;
523
524bad_inode:
525 f2fs_inode_synced(inode);
526 iget_failed(inode);
527 trace_f2fs_iget_exit(inode, ret);
528 return ERR_PTR(ret);
529}
530
531struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
532{
533 struct inode *inode;
534retry:
535 inode = f2fs_iget(sb, ino);
536 if (IS_ERR(inode)) {
537 if (PTR_ERR(inode) == -ENOMEM) {
538 congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
539 goto retry;
540 }
541 }
542 return inode;
543}
544
545void f2fs_update_inode(struct inode *inode, struct page *node_page)
546{
547 struct f2fs_inode *ri;
548 struct extent_tree *et = F2FS_I(inode)->extent_tree;
549
550 f2fs_wait_on_page_writeback(node_page, NODE, true, true);
551 set_page_dirty(node_page);
552
553 f2fs_inode_synced(inode);
554
555 ri = F2FS_INODE(node_page);
556
557 ri->i_mode = cpu_to_le16(inode->i_mode);
558 ri->i_advise = F2FS_I(inode)->i_advise;
559 ri->i_uid = cpu_to_le32(i_uid_read(inode));
560 ri->i_gid = cpu_to_le32(i_gid_read(inode));
561 ri->i_links = cpu_to_le32(inode->i_nlink);
562 ri->i_size = cpu_to_le64(i_size_read(inode));
563 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
564
565 if (et) {
566 read_lock(&et->lock);
567 set_raw_extent(&et->largest, &ri->i_ext);
568 read_unlock(&et->lock);
569 } else {
570 memset(&ri->i_ext, 0, sizeof(ri->i_ext));
571 }
572 set_raw_inline(inode, ri);
573
574 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
575 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
576 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
577 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
578 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
579 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
580 if (S_ISDIR(inode->i_mode))
581 ri->i_current_depth =
582 cpu_to_le32(F2FS_I(inode)->i_current_depth);
583 else if (S_ISREG(inode->i_mode))
584 ri->i_gc_failures =
585 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]);
586 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
587 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
588 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
589 ri->i_generation = cpu_to_le32(inode->i_generation);
590 ri->i_dir_level = F2FS_I(inode)->i_dir_level;
591
592 if (f2fs_has_extra_attr(inode)) {
593 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
594
595 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)))
596 ri->i_inline_xattr_size =
597 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
598
599 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) &&
600 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
601 i_projid)) {
602 projid_t i_projid;
603
604 i_projid = from_kprojid(&init_user_ns,
605 F2FS_I(inode)->i_projid);
606 ri->i_projid = cpu_to_le32(i_projid);
607 }
608
609 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
610 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
611 i_crtime)) {
612 ri->i_crtime =
613 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec);
614 ri->i_crtime_nsec =
615 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
616 }
617
618 if (f2fs_sb_has_compression(F2FS_I_SB(inode)) &&
619 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
620 i_log_cluster_size)) {
621 ri->i_compr_blocks =
622 cpu_to_le64(F2FS_I(inode)->i_compr_blocks);
623 ri->i_compress_algorithm =
624 F2FS_I(inode)->i_compress_algorithm;
625 ri->i_log_cluster_size =
626 F2FS_I(inode)->i_log_cluster_size;
627 }
628 }
629
630 __set_inode_rdev(inode, ri);
631
632 /* deleted inode */
633 if (inode->i_nlink == 0)
634 clear_inline_node(node_page);
635
636 F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
637 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
638 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
639 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
640
641#ifdef CONFIG_F2FS_CHECK_FS
642 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
643#endif
644}
645
646void f2fs_update_inode_page(struct inode *inode)
647{
648 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
649 struct page *node_page;
650retry:
651 node_page = f2fs_get_node_page(sbi, inode->i_ino);
652 if (IS_ERR(node_page)) {
653 int err = PTR_ERR(node_page);
654 if (err == -ENOMEM) {
655 cond_resched();
656 goto retry;
657 } else if (err != -ENOENT) {
658 f2fs_stop_checkpoint(sbi, false);
659 }
660 return;
661 }
662 f2fs_update_inode(inode, node_page);
663 f2fs_put_page(node_page, 1);
664}
665
666int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
667{
668 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
669
670 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
671 inode->i_ino == F2FS_META_INO(sbi))
672 return 0;
673
674 /*
675 * atime could be updated without dirtying f2fs inode in lazytime mode
676 */
677 if (f2fs_is_time_consistent(inode) &&
678 !is_inode_flag_set(inode, FI_DIRTY_INODE))
679 return 0;
680
681 if (!f2fs_is_checkpoint_ready(sbi))
682 return -ENOSPC;
683
684 /*
685 * We need to balance fs here to prevent from producing dirty node pages
686 * during the urgent cleaning time when runing out of free sections.
687 */
688 f2fs_update_inode_page(inode);
689 if (wbc && wbc->nr_to_write)
690 f2fs_balance_fs(sbi, true);
691 return 0;
692}
693
694/*
695 * Called at the last iput() if i_nlink is zero
696 */
697void f2fs_evict_inode(struct inode *inode)
698{
699 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
700 nid_t xnid = F2FS_I(inode)->i_xattr_nid;
701 int err = 0;
702
703 /* some remained atomic pages should discarded */
704 if (f2fs_is_atomic_file(inode))
705 f2fs_drop_inmem_pages(inode);
706
707 trace_f2fs_evict_inode(inode);
708 truncate_inode_pages_final(&inode->i_data);
709
710 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
711 inode->i_ino == F2FS_META_INO(sbi))
712 goto out_clear;
713
714 f2fs_bug_on(sbi, get_dirty_pages(inode));
715 f2fs_remove_dirty_inode(inode);
716
717 f2fs_destroy_extent_tree(inode);
718
719 if (inode->i_nlink || is_bad_inode(inode))
720 goto no_delete;
721
722 err = dquot_initialize(inode);
723 if (err) {
724 err = 0;
725 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
726 }
727
728 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
729 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
730 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
731
732 sb_start_intwrite(inode->i_sb);
733 set_inode_flag(inode, FI_NO_ALLOC);
734 i_size_write(inode, 0);
735retry:
736 if (F2FS_HAS_BLOCKS(inode))
737 err = f2fs_truncate(inode);
738
739 if (time_to_inject(sbi, FAULT_EVICT_INODE)) {
740 f2fs_show_injection_info(sbi, FAULT_EVICT_INODE);
741 err = -EIO;
742 }
743
744 if (!err) {
745 f2fs_lock_op(sbi);
746 err = f2fs_remove_inode_page(inode);
747 f2fs_unlock_op(sbi);
748 if (err == -ENOENT)
749 err = 0;
750 }
751
752 /* give more chances, if ENOMEM case */
753 if (err == -ENOMEM) {
754 err = 0;
755 goto retry;
756 }
757
758 if (err) {
759 f2fs_update_inode_page(inode);
760 if (dquot_initialize_needed(inode))
761 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
762 }
763 sb_end_intwrite(inode->i_sb);
764no_delete:
765 dquot_drop(inode);
766
767 stat_dec_inline_xattr(inode);
768 stat_dec_inline_dir(inode);
769 stat_dec_inline_inode(inode);
770 stat_dec_compr_inode(inode);
771 stat_sub_compr_blocks(inode, F2FS_I(inode)->i_compr_blocks);
772
773 if (likely(!f2fs_cp_error(sbi) &&
774 !is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
775 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
776 else
777 f2fs_inode_synced(inode);
778
779 /* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */
780 if (inode->i_ino)
781 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
782 inode->i_ino);
783 if (xnid)
784 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
785 if (inode->i_nlink) {
786 if (is_inode_flag_set(inode, FI_APPEND_WRITE))
787 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
788 if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
789 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
790 }
791 if (is_inode_flag_set(inode, FI_FREE_NID)) {
792 f2fs_alloc_nid_failed(sbi, inode->i_ino);
793 clear_inode_flag(inode, FI_FREE_NID);
794 } else {
795 /*
796 * If xattr nid is corrupted, we can reach out error condition,
797 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
798 * In that case, f2fs_check_nid_range() is enough to give a clue.
799 */
800 }
801out_clear:
802 fscrypt_put_encryption_info(inode);
803 fsverity_cleanup_inode(inode);
804 clear_inode(inode);
805}
806
807/* caller should call f2fs_lock_op() */
808void f2fs_handle_failed_inode(struct inode *inode)
809{
810 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
811 struct node_info ni;
812 int err;
813
814 /*
815 * clear nlink of inode in order to release resource of inode
816 * immediately.
817 */
818 clear_nlink(inode);
819
820 /*
821 * we must call this to avoid inode being remained as dirty, resulting
822 * in a panic when flushing dirty inodes in gdirty_list.
823 */
824 f2fs_update_inode_page(inode);
825 f2fs_inode_synced(inode);
826
827 /* don't make bad inode, since it becomes a regular file. */
828 unlock_new_inode(inode);
829
830 /*
831 * Note: we should add inode to orphan list before f2fs_unlock_op()
832 * so we can prevent losing this orphan when encoutering checkpoint
833 * and following suddenly power-off.
834 */
835 err = f2fs_get_node_info(sbi, inode->i_ino, &ni);
836 if (err) {
837 set_sbi_flag(sbi, SBI_NEED_FSCK);
838 f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
839 goto out;
840 }
841
842 if (ni.blk_addr != NULL_ADDR) {
843 err = f2fs_acquire_orphan_inode(sbi);
844 if (err) {
845 set_sbi_flag(sbi, SBI_NEED_FSCK);
846 f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix.");
847 } else {
848 f2fs_add_orphan_inode(inode);
849 }
850 f2fs_alloc_nid_done(sbi, inode->i_ino);
851 } else {
852 set_inode_flag(inode, FI_FREE_NID);
853 }
854
855out:
856 f2fs_unlock_op(sbi);
857
858 /* iput will drop the inode object */
859 iput(inode);
860}