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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 unsigned long long iblocks;
204
205 iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks);
206 if (!iblocks) {
207 set_sbi_flag(sbi, SBI_NEED_FSCK);
208 f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.",
209 __func__, inode->i_ino, iblocks);
210 return false;
211 }
212
213 if (ino_of_node(node_page) != nid_of_node(node_page)) {
214 set_sbi_flag(sbi, SBI_NEED_FSCK);
215 f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.",
216 __func__, inode->i_ino,
217 ino_of_node(node_page), nid_of_node(node_page));
218 return false;
219 }
220
221 if (f2fs_sb_has_flexible_inline_xattr(sbi)
222 && !f2fs_has_extra_attr(inode)) {
223 set_sbi_flag(sbi, SBI_NEED_FSCK);
224 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.",
225 __func__, inode->i_ino);
226 return false;
227 }
228
229 if (f2fs_has_extra_attr(inode) &&
230 !f2fs_sb_has_extra_attr(sbi)) {
231 set_sbi_flag(sbi, SBI_NEED_FSCK);
232 f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off",
233 __func__, inode->i_ino);
234 return false;
235 }
236
237 if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE ||
238 fi->i_extra_isize % sizeof(__le32)) {
239 set_sbi_flag(sbi, SBI_NEED_FSCK);
240 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu",
241 __func__, inode->i_ino, fi->i_extra_isize,
242 F2FS_TOTAL_EXTRA_ATTR_SIZE);
243 return false;
244 }
245
246 if (f2fs_has_extra_attr(inode) &&
247 f2fs_sb_has_flexible_inline_xattr(sbi) &&
248 f2fs_has_inline_xattr(inode) &&
249 (!fi->i_inline_xattr_size ||
250 fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) {
251 set_sbi_flag(sbi, SBI_NEED_FSCK);
252 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %zu",
253 __func__, inode->i_ino, fi->i_inline_xattr_size,
254 MAX_INLINE_XATTR_SIZE);
255 return false;
256 }
257
258 if (F2FS_I(inode)->extent_tree) {
259 struct extent_info *ei = &F2FS_I(inode)->extent_tree->largest;
260
261 if (ei->len &&
262 (!f2fs_is_valid_blkaddr(sbi, ei->blk,
263 DATA_GENERIC_ENHANCE) ||
264 !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1,
265 DATA_GENERIC_ENHANCE))) {
266 set_sbi_flag(sbi, SBI_NEED_FSCK);
267 f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix",
268 __func__, inode->i_ino,
269 ei->blk, ei->fofs, ei->len);
270 return false;
271 }
272 }
273
274 if (f2fs_has_inline_data(inode) &&
275 (!S_ISREG(inode->i_mode) && !S_ISLNK(inode->i_mode))) {
276 set_sbi_flag(sbi, SBI_NEED_FSCK);
277 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix",
278 __func__, inode->i_ino, inode->i_mode);
279 return false;
280 }
281
282 if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) {
283 set_sbi_flag(sbi, SBI_NEED_FSCK);
284 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix",
285 __func__, inode->i_ino, inode->i_mode);
286 return false;
287 }
288
289 return true;
290}
291
292static int do_read_inode(struct inode *inode)
293{
294 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
295 struct f2fs_inode_info *fi = F2FS_I(inode);
296 struct page *node_page;
297 struct f2fs_inode *ri;
298 projid_t i_projid;
299 int err;
300
301 /* Check if ino is within scope */
302 if (f2fs_check_nid_range(sbi, inode->i_ino))
303 return -EINVAL;
304
305 node_page = f2fs_get_node_page(sbi, inode->i_ino);
306 if (IS_ERR(node_page))
307 return PTR_ERR(node_page);
308
309 ri = F2FS_INODE(node_page);
310
311 inode->i_mode = le16_to_cpu(ri->i_mode);
312 i_uid_write(inode, le32_to_cpu(ri->i_uid));
313 i_gid_write(inode, le32_to_cpu(ri->i_gid));
314 set_nlink(inode, le32_to_cpu(ri->i_links));
315 inode->i_size = le64_to_cpu(ri->i_size);
316 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
317
318 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
319 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
320 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
321 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
322 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
323 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
324 inode->i_generation = le32_to_cpu(ri->i_generation);
325 if (S_ISDIR(inode->i_mode))
326 fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
327 else if (S_ISREG(inode->i_mode))
328 fi->i_gc_failures[GC_FAILURE_PIN] =
329 le16_to_cpu(ri->i_gc_failures);
330 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
331 fi->i_flags = le32_to_cpu(ri->i_flags);
332 if (S_ISREG(inode->i_mode))
333 fi->i_flags &= ~F2FS_PROJINHERIT_FL;
334 fi->flags = 0;
335 fi->i_advise = ri->i_advise;
336 fi->i_pino = le32_to_cpu(ri->i_pino);
337 fi->i_dir_level = ri->i_dir_level;
338
339 if (f2fs_init_extent_tree(inode, &ri->i_ext))
340 set_page_dirty(node_page);
341
342 get_inline_info(inode, ri);
343
344 fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
345 le16_to_cpu(ri->i_extra_isize) : 0;
346
347 if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
348 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
349 } else if (f2fs_has_inline_xattr(inode) ||
350 f2fs_has_inline_dentry(inode)) {
351 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
352 } else {
353
354 /*
355 * Previous inline data or directory always reserved 200 bytes
356 * in inode layout, even if inline_xattr is disabled. In order
357 * to keep inline_dentry's structure for backward compatibility,
358 * we get the space back only from inline_data.
359 */
360 fi->i_inline_xattr_size = 0;
361 }
362
363 if (!sanity_check_inode(inode, node_page)) {
364 f2fs_put_page(node_page, 1);
365 return -EFSCORRUPTED;
366 }
367
368 /* check data exist */
369 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
370 __recover_inline_status(inode, node_page);
371
372 /* try to recover cold bit for non-dir inode */
373 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) {
374 set_cold_node(node_page, false);
375 set_page_dirty(node_page);
376 }
377
378 /* get rdev by using inline_info */
379 __get_inode_rdev(inode, ri);
380
381 if (S_ISREG(inode->i_mode)) {
382 err = __written_first_block(sbi, ri);
383 if (err < 0) {
384 f2fs_put_page(node_page, 1);
385 return err;
386 }
387 if (!err)
388 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
389 }
390
391 if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
392 fi->last_disk_size = inode->i_size;
393
394 if (fi->i_flags & F2FS_PROJINHERIT_FL)
395 set_inode_flag(inode, FI_PROJ_INHERIT);
396
397 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) &&
398 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
399 i_projid = (projid_t)le32_to_cpu(ri->i_projid);
400 else
401 i_projid = F2FS_DEF_PROJID;
402 fi->i_projid = make_kprojid(&init_user_ns, i_projid);
403
404 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) &&
405 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
406 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
407 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
408 }
409
410 F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
411 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
412 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
413 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
414 f2fs_put_page(node_page, 1);
415
416 stat_inc_inline_xattr(inode);
417 stat_inc_inline_inode(inode);
418 stat_inc_inline_dir(inode);
419
420 return 0;
421}
422
423struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
424{
425 struct f2fs_sb_info *sbi = F2FS_SB(sb);
426 struct inode *inode;
427 int ret = 0;
428
429 inode = iget_locked(sb, ino);
430 if (!inode)
431 return ERR_PTR(-ENOMEM);
432
433 if (!(inode->i_state & I_NEW)) {
434 trace_f2fs_iget(inode);
435 return inode;
436 }
437 if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
438 goto make_now;
439
440 ret = do_read_inode(inode);
441 if (ret)
442 goto bad_inode;
443make_now:
444 if (ino == F2FS_NODE_INO(sbi)) {
445 inode->i_mapping->a_ops = &f2fs_node_aops;
446 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
447 } else if (ino == F2FS_META_INO(sbi)) {
448 inode->i_mapping->a_ops = &f2fs_meta_aops;
449 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
450 } else if (S_ISREG(inode->i_mode)) {
451 inode->i_op = &f2fs_file_inode_operations;
452 inode->i_fop = &f2fs_file_operations;
453 inode->i_mapping->a_ops = &f2fs_dblock_aops;
454 } else if (S_ISDIR(inode->i_mode)) {
455 inode->i_op = &f2fs_dir_inode_operations;
456 inode->i_fop = &f2fs_dir_operations;
457 inode->i_mapping->a_ops = &f2fs_dblock_aops;
458 inode_nohighmem(inode);
459 } else if (S_ISLNK(inode->i_mode)) {
460 if (file_is_encrypt(inode))
461 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
462 else
463 inode->i_op = &f2fs_symlink_inode_operations;
464 inode_nohighmem(inode);
465 inode->i_mapping->a_ops = &f2fs_dblock_aops;
466 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
467 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
468 inode->i_op = &f2fs_special_inode_operations;
469 init_special_inode(inode, inode->i_mode, inode->i_rdev);
470 } else {
471 ret = -EIO;
472 goto bad_inode;
473 }
474 f2fs_set_inode_flags(inode);
475 unlock_new_inode(inode);
476 trace_f2fs_iget(inode);
477 return inode;
478
479bad_inode:
480 f2fs_inode_synced(inode);
481 iget_failed(inode);
482 trace_f2fs_iget_exit(inode, ret);
483 return ERR_PTR(ret);
484}
485
486struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
487{
488 struct inode *inode;
489retry:
490 inode = f2fs_iget(sb, ino);
491 if (IS_ERR(inode)) {
492 if (PTR_ERR(inode) == -ENOMEM) {
493 congestion_wait(BLK_RW_ASYNC, HZ/50);
494 goto retry;
495 }
496 }
497 return inode;
498}
499
500void f2fs_update_inode(struct inode *inode, struct page *node_page)
501{
502 struct f2fs_inode *ri;
503 struct extent_tree *et = F2FS_I(inode)->extent_tree;
504
505 f2fs_wait_on_page_writeback(node_page, NODE, true, true);
506 set_page_dirty(node_page);
507
508 f2fs_inode_synced(inode);
509
510 ri = F2FS_INODE(node_page);
511
512 ri->i_mode = cpu_to_le16(inode->i_mode);
513 ri->i_advise = F2FS_I(inode)->i_advise;
514 ri->i_uid = cpu_to_le32(i_uid_read(inode));
515 ri->i_gid = cpu_to_le32(i_gid_read(inode));
516 ri->i_links = cpu_to_le32(inode->i_nlink);
517 ri->i_size = cpu_to_le64(i_size_read(inode));
518 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
519
520 if (et) {
521 read_lock(&et->lock);
522 set_raw_extent(&et->largest, &ri->i_ext);
523 read_unlock(&et->lock);
524 } else {
525 memset(&ri->i_ext, 0, sizeof(ri->i_ext));
526 }
527 set_raw_inline(inode, ri);
528
529 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
530 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
531 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
532 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
533 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
534 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
535 if (S_ISDIR(inode->i_mode))
536 ri->i_current_depth =
537 cpu_to_le32(F2FS_I(inode)->i_current_depth);
538 else if (S_ISREG(inode->i_mode))
539 ri->i_gc_failures =
540 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]);
541 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
542 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
543 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
544 ri->i_generation = cpu_to_le32(inode->i_generation);
545 ri->i_dir_level = F2FS_I(inode)->i_dir_level;
546
547 if (f2fs_has_extra_attr(inode)) {
548 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
549
550 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)))
551 ri->i_inline_xattr_size =
552 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
553
554 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) &&
555 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
556 i_projid)) {
557 projid_t i_projid;
558
559 i_projid = from_kprojid(&init_user_ns,
560 F2FS_I(inode)->i_projid);
561 ri->i_projid = cpu_to_le32(i_projid);
562 }
563
564 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
565 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
566 i_crtime)) {
567 ri->i_crtime =
568 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec);
569 ri->i_crtime_nsec =
570 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
571 }
572 }
573
574 __set_inode_rdev(inode, ri);
575
576 /* deleted inode */
577 if (inode->i_nlink == 0)
578 clear_inline_node(node_page);
579
580 F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
581 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
582 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
583 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
584
585#ifdef CONFIG_F2FS_CHECK_FS
586 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
587#endif
588}
589
590void f2fs_update_inode_page(struct inode *inode)
591{
592 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
593 struct page *node_page;
594retry:
595 node_page = f2fs_get_node_page(sbi, inode->i_ino);
596 if (IS_ERR(node_page)) {
597 int err = PTR_ERR(node_page);
598 if (err == -ENOMEM) {
599 cond_resched();
600 goto retry;
601 } else if (err != -ENOENT) {
602 f2fs_stop_checkpoint(sbi, false);
603 }
604 return;
605 }
606 f2fs_update_inode(inode, node_page);
607 f2fs_put_page(node_page, 1);
608}
609
610int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
611{
612 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
613
614 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
615 inode->i_ino == F2FS_META_INO(sbi))
616 return 0;
617
618 if (!is_inode_flag_set(inode, FI_DIRTY_INODE))
619 return 0;
620
621 if (!f2fs_is_checkpoint_ready(sbi))
622 return -ENOSPC;
623
624 /*
625 * We need to balance fs here to prevent from producing dirty node pages
626 * during the urgent cleaning time when runing out of free sections.
627 */
628 f2fs_update_inode_page(inode);
629 if (wbc && wbc->nr_to_write)
630 f2fs_balance_fs(sbi, true);
631 return 0;
632}
633
634/*
635 * Called at the last iput() if i_nlink is zero
636 */
637void f2fs_evict_inode(struct inode *inode)
638{
639 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
640 nid_t xnid = F2FS_I(inode)->i_xattr_nid;
641 int err = 0;
642
643 /* some remained atomic pages should discarded */
644 if (f2fs_is_atomic_file(inode))
645 f2fs_drop_inmem_pages(inode);
646
647 trace_f2fs_evict_inode(inode);
648 truncate_inode_pages_final(&inode->i_data);
649
650 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
651 inode->i_ino == F2FS_META_INO(sbi))
652 goto out_clear;
653
654 f2fs_bug_on(sbi, get_dirty_pages(inode));
655 f2fs_remove_dirty_inode(inode);
656
657 f2fs_destroy_extent_tree(inode);
658
659 if (inode->i_nlink || is_bad_inode(inode))
660 goto no_delete;
661
662 err = dquot_initialize(inode);
663 if (err) {
664 err = 0;
665 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
666 }
667
668 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
669 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
670 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
671
672 sb_start_intwrite(inode->i_sb);
673 set_inode_flag(inode, FI_NO_ALLOC);
674 i_size_write(inode, 0);
675retry:
676 if (F2FS_HAS_BLOCKS(inode))
677 err = f2fs_truncate(inode);
678
679 if (time_to_inject(sbi, FAULT_EVICT_INODE)) {
680 f2fs_show_injection_info(FAULT_EVICT_INODE);
681 err = -EIO;
682 }
683
684 if (!err) {
685 f2fs_lock_op(sbi);
686 err = f2fs_remove_inode_page(inode);
687 f2fs_unlock_op(sbi);
688 if (err == -ENOENT)
689 err = 0;
690 }
691
692 /* give more chances, if ENOMEM case */
693 if (err == -ENOMEM) {
694 err = 0;
695 goto retry;
696 }
697
698 if (err) {
699 f2fs_update_inode_page(inode);
700 if (dquot_initialize_needed(inode))
701 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
702 }
703 sb_end_intwrite(inode->i_sb);
704no_delete:
705 dquot_drop(inode);
706
707 stat_dec_inline_xattr(inode);
708 stat_dec_inline_dir(inode);
709 stat_dec_inline_inode(inode);
710
711 if (likely(!f2fs_cp_error(sbi) &&
712 !is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
713 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
714 else
715 f2fs_inode_synced(inode);
716
717 /* ino == 0, if f2fs_new_inode() was failed t*/
718 if (inode->i_ino)
719 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
720 inode->i_ino);
721 if (xnid)
722 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
723 if (inode->i_nlink) {
724 if (is_inode_flag_set(inode, FI_APPEND_WRITE))
725 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
726 if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
727 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
728 }
729 if (is_inode_flag_set(inode, FI_FREE_NID)) {
730 f2fs_alloc_nid_failed(sbi, inode->i_ino);
731 clear_inode_flag(inode, FI_FREE_NID);
732 } else {
733 /*
734 * If xattr nid is corrupted, we can reach out error condition,
735 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
736 * In that case, f2fs_check_nid_range() is enough to give a clue.
737 */
738 }
739out_clear:
740 fscrypt_put_encryption_info(inode);
741 fsverity_cleanup_inode(inode);
742 clear_inode(inode);
743}
744
745/* caller should call f2fs_lock_op() */
746void f2fs_handle_failed_inode(struct inode *inode)
747{
748 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
749 struct node_info ni;
750 int err;
751
752 /*
753 * clear nlink of inode in order to release resource of inode
754 * immediately.
755 */
756 clear_nlink(inode);
757
758 /*
759 * we must call this to avoid inode being remained as dirty, resulting
760 * in a panic when flushing dirty inodes in gdirty_list.
761 */
762 f2fs_update_inode_page(inode);
763 f2fs_inode_synced(inode);
764
765 /* don't make bad inode, since it becomes a regular file. */
766 unlock_new_inode(inode);
767
768 /*
769 * Note: we should add inode to orphan list before f2fs_unlock_op()
770 * so we can prevent losing this orphan when encoutering checkpoint
771 * and following suddenly power-off.
772 */
773 err = f2fs_get_node_info(sbi, inode->i_ino, &ni);
774 if (err) {
775 set_sbi_flag(sbi, SBI_NEED_FSCK);
776 f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
777 goto out;
778 }
779
780 if (ni.blk_addr != NULL_ADDR) {
781 err = f2fs_acquire_orphan_inode(sbi);
782 if (err) {
783 set_sbi_flag(sbi, SBI_NEED_FSCK);
784 f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix.");
785 } else {
786 f2fs_add_orphan_inode(inode);
787 }
788 f2fs_alloc_nid_done(sbi, inode->i_ino);
789 } else {
790 set_inode_flag(inode, FI_FREE_NID);
791 }
792
793out:
794 f2fs_unlock_op(sbi);
795
796 /* iput will drop the inode object */
797 iput(inode);
798}
1/*
2 * fs/f2fs/inode.c
3 *
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#include <linux/fs.h>
12#include <linux/f2fs_fs.h>
13#include <linux/buffer_head.h>
14#include <linux/writeback.h>
15
16#include "f2fs.h"
17#include "node.h"
18
19#include <trace/events/f2fs.h>
20
21void f2fs_set_inode_flags(struct inode *inode)
22{
23 unsigned int flags = F2FS_I(inode)->i_flags;
24 unsigned int new_fl = 0;
25
26 if (flags & FS_SYNC_FL)
27 new_fl |= S_SYNC;
28 if (flags & FS_APPEND_FL)
29 new_fl |= S_APPEND;
30 if (flags & FS_IMMUTABLE_FL)
31 new_fl |= S_IMMUTABLE;
32 if (flags & FS_NOATIME_FL)
33 new_fl |= S_NOATIME;
34 if (flags & FS_DIRSYNC_FL)
35 new_fl |= S_DIRSYNC;
36 inode_set_flags(inode, new_fl,
37 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
38}
39
40static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
41{
42 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
43 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
44 if (ri->i_addr[0])
45 inode->i_rdev =
46 old_decode_dev(le32_to_cpu(ri->i_addr[0]));
47 else
48 inode->i_rdev =
49 new_decode_dev(le32_to_cpu(ri->i_addr[1]));
50 }
51}
52
53static bool __written_first_block(struct f2fs_inode *ri)
54{
55 block_t addr = le32_to_cpu(ri->i_addr[0]);
56
57 if (addr != NEW_ADDR && addr != NULL_ADDR)
58 return true;
59 return false;
60}
61
62static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
63{
64 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
65 if (old_valid_dev(inode->i_rdev)) {
66 ri->i_addr[0] =
67 cpu_to_le32(old_encode_dev(inode->i_rdev));
68 ri->i_addr[1] = 0;
69 } else {
70 ri->i_addr[0] = 0;
71 ri->i_addr[1] =
72 cpu_to_le32(new_encode_dev(inode->i_rdev));
73 ri->i_addr[2] = 0;
74 }
75 }
76}
77
78static void __recover_inline_status(struct inode *inode, struct page *ipage)
79{
80 void *inline_data = inline_data_addr(ipage);
81 __le32 *start = inline_data;
82 __le32 *end = start + MAX_INLINE_DATA / sizeof(__le32);
83
84 while (start < end) {
85 if (*start++) {
86 f2fs_wait_on_page_writeback(ipage, NODE, true);
87
88 set_inode_flag(F2FS_I(inode), FI_DATA_EXIST);
89 set_raw_inline(F2FS_I(inode), F2FS_INODE(ipage));
90 set_page_dirty(ipage);
91 return;
92 }
93 }
94 return;
95}
96
97static int do_read_inode(struct inode *inode)
98{
99 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
100 struct f2fs_inode_info *fi = F2FS_I(inode);
101 struct page *node_page;
102 struct f2fs_inode *ri;
103
104 /* Check if ino is within scope */
105 if (check_nid_range(sbi, inode->i_ino)) {
106 f2fs_msg(inode->i_sb, KERN_ERR, "bad inode number: %lu",
107 (unsigned long) inode->i_ino);
108 WARN_ON(1);
109 return -EINVAL;
110 }
111
112 node_page = get_node_page(sbi, inode->i_ino);
113 if (IS_ERR(node_page))
114 return PTR_ERR(node_page);
115
116 ri = F2FS_INODE(node_page);
117
118 inode->i_mode = le16_to_cpu(ri->i_mode);
119 i_uid_write(inode, le32_to_cpu(ri->i_uid));
120 i_gid_write(inode, le32_to_cpu(ri->i_gid));
121 set_nlink(inode, le32_to_cpu(ri->i_links));
122 inode->i_size = le64_to_cpu(ri->i_size);
123 inode->i_blocks = le64_to_cpu(ri->i_blocks);
124
125 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
126 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
127 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
128 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
129 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
130 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
131 inode->i_generation = le32_to_cpu(ri->i_generation);
132
133 fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
134 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
135 fi->i_flags = le32_to_cpu(ri->i_flags);
136 fi->flags = 0;
137 fi->i_advise = ri->i_advise;
138 fi->i_pino = le32_to_cpu(ri->i_pino);
139 fi->i_dir_level = ri->i_dir_level;
140
141 if (f2fs_init_extent_tree(inode, &ri->i_ext))
142 set_page_dirty(node_page);
143
144 get_inline_info(fi, ri);
145
146 /* check data exist */
147 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
148 __recover_inline_status(inode, node_page);
149
150 /* get rdev by using inline_info */
151 __get_inode_rdev(inode, ri);
152
153 if (__written_first_block(ri))
154 set_inode_flag(F2FS_I(inode), FI_FIRST_BLOCK_WRITTEN);
155
156 f2fs_put_page(node_page, 1);
157
158 stat_inc_inline_xattr(inode);
159 stat_inc_inline_inode(inode);
160 stat_inc_inline_dir(inode);
161
162 return 0;
163}
164
165struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
166{
167 struct f2fs_sb_info *sbi = F2FS_SB(sb);
168 struct inode *inode;
169 int ret = 0;
170
171 inode = iget_locked(sb, ino);
172 if (!inode)
173 return ERR_PTR(-ENOMEM);
174
175 if (!(inode->i_state & I_NEW)) {
176 trace_f2fs_iget(inode);
177 return inode;
178 }
179 if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
180 goto make_now;
181
182 ret = do_read_inode(inode);
183 if (ret)
184 goto bad_inode;
185make_now:
186 if (ino == F2FS_NODE_INO(sbi)) {
187 inode->i_mapping->a_ops = &f2fs_node_aops;
188 mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
189 } else if (ino == F2FS_META_INO(sbi)) {
190 inode->i_mapping->a_ops = &f2fs_meta_aops;
191 mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
192 } else if (S_ISREG(inode->i_mode)) {
193 inode->i_op = &f2fs_file_inode_operations;
194 inode->i_fop = &f2fs_file_operations;
195 inode->i_mapping->a_ops = &f2fs_dblock_aops;
196 } else if (S_ISDIR(inode->i_mode)) {
197 inode->i_op = &f2fs_dir_inode_operations;
198 inode->i_fop = &f2fs_dir_operations;
199 inode->i_mapping->a_ops = &f2fs_dblock_aops;
200 mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_HIGH_ZERO);
201 } else if (S_ISLNK(inode->i_mode)) {
202 if (f2fs_encrypted_inode(inode))
203 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
204 else
205 inode->i_op = &f2fs_symlink_inode_operations;
206 inode_nohighmem(inode);
207 inode->i_mapping->a_ops = &f2fs_dblock_aops;
208 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
209 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
210 inode->i_op = &f2fs_special_inode_operations;
211 init_special_inode(inode, inode->i_mode, inode->i_rdev);
212 } else {
213 ret = -EIO;
214 goto bad_inode;
215 }
216 unlock_new_inode(inode);
217 trace_f2fs_iget(inode);
218 return inode;
219
220bad_inode:
221 iget_failed(inode);
222 trace_f2fs_iget_exit(inode, ret);
223 return ERR_PTR(ret);
224}
225
226int update_inode(struct inode *inode, struct page *node_page)
227{
228 struct f2fs_inode *ri;
229
230 f2fs_wait_on_page_writeback(node_page, NODE, true);
231
232 ri = F2FS_INODE(node_page);
233
234 ri->i_mode = cpu_to_le16(inode->i_mode);
235 ri->i_advise = F2FS_I(inode)->i_advise;
236 ri->i_uid = cpu_to_le32(i_uid_read(inode));
237 ri->i_gid = cpu_to_le32(i_gid_read(inode));
238 ri->i_links = cpu_to_le32(inode->i_nlink);
239 ri->i_size = cpu_to_le64(i_size_read(inode));
240 ri->i_blocks = cpu_to_le64(inode->i_blocks);
241
242 if (F2FS_I(inode)->extent_tree)
243 set_raw_extent(&F2FS_I(inode)->extent_tree->largest,
244 &ri->i_ext);
245 else
246 memset(&ri->i_ext, 0, sizeof(ri->i_ext));
247 set_raw_inline(F2FS_I(inode), ri);
248
249 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
250 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
251 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
252 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
253 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
254 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
255 ri->i_current_depth = cpu_to_le32(F2FS_I(inode)->i_current_depth);
256 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
257 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
258 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
259 ri->i_generation = cpu_to_le32(inode->i_generation);
260 ri->i_dir_level = F2FS_I(inode)->i_dir_level;
261
262 __set_inode_rdev(inode, ri);
263 set_cold_node(inode, node_page);
264 clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE);
265
266 /* deleted inode */
267 if (inode->i_nlink == 0)
268 clear_inline_node(node_page);
269
270 return set_page_dirty(node_page);
271}
272
273int update_inode_page(struct inode *inode)
274{
275 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
276 struct page *node_page;
277 int ret = 0;
278retry:
279 node_page = get_node_page(sbi, inode->i_ino);
280 if (IS_ERR(node_page)) {
281 int err = PTR_ERR(node_page);
282 if (err == -ENOMEM) {
283 cond_resched();
284 goto retry;
285 } else if (err != -ENOENT) {
286 f2fs_stop_checkpoint(sbi);
287 }
288 return 0;
289 }
290 ret = update_inode(inode, node_page);
291 f2fs_put_page(node_page, 1);
292 return ret;
293}
294
295int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
296{
297 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
298
299 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
300 inode->i_ino == F2FS_META_INO(sbi))
301 return 0;
302
303 if (!is_inode_flag_set(F2FS_I(inode), FI_DIRTY_INODE))
304 return 0;
305
306 /*
307 * We need to balance fs here to prevent from producing dirty node pages
308 * during the urgent cleaning time when runing out of free sections.
309 */
310 if (update_inode_page(inode))
311 f2fs_balance_fs(sbi, true);
312 return 0;
313}
314
315/*
316 * Called at the last iput() if i_nlink is zero
317 */
318void f2fs_evict_inode(struct inode *inode)
319{
320 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
321 struct f2fs_inode_info *fi = F2FS_I(inode);
322 nid_t xnid = fi->i_xattr_nid;
323 int err = 0;
324
325 /* some remained atomic pages should discarded */
326 if (f2fs_is_atomic_file(inode))
327 drop_inmem_pages(inode);
328
329 trace_f2fs_evict_inode(inode);
330 truncate_inode_pages_final(&inode->i_data);
331
332 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
333 inode->i_ino == F2FS_META_INO(sbi))
334 goto out_clear;
335
336 f2fs_bug_on(sbi, get_dirty_pages(inode));
337 remove_dirty_inode(inode);
338
339 f2fs_destroy_extent_tree(inode);
340
341 if (inode->i_nlink || is_bad_inode(inode))
342 goto no_delete;
343
344 sb_start_intwrite(inode->i_sb);
345 set_inode_flag(fi, FI_NO_ALLOC);
346 i_size_write(inode, 0);
347
348 if (F2FS_HAS_BLOCKS(inode))
349 err = f2fs_truncate(inode, true);
350
351 if (!err) {
352 f2fs_lock_op(sbi);
353 err = remove_inode_page(inode);
354 f2fs_unlock_op(sbi);
355 }
356
357 sb_end_intwrite(inode->i_sb);
358no_delete:
359 stat_dec_inline_xattr(inode);
360 stat_dec_inline_dir(inode);
361 stat_dec_inline_inode(inode);
362
363 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, inode->i_ino);
364 if (xnid)
365 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
366 if (is_inode_flag_set(fi, FI_APPEND_WRITE))
367 add_ino_entry(sbi, inode->i_ino, APPEND_INO);
368 if (is_inode_flag_set(fi, FI_UPDATE_WRITE))
369 add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
370 if (is_inode_flag_set(fi, FI_FREE_NID)) {
371 if (err && err != -ENOENT)
372 alloc_nid_done(sbi, inode->i_ino);
373 else
374 alloc_nid_failed(sbi, inode->i_ino);
375 clear_inode_flag(fi, FI_FREE_NID);
376 }
377
378 if (err && err != -ENOENT) {
379 if (!exist_written_data(sbi, inode->i_ino, ORPHAN_INO)) {
380 /*
381 * get here because we failed to release resource
382 * of inode previously, reminder our user to run fsck
383 * for fixing.
384 */
385 set_sbi_flag(sbi, SBI_NEED_FSCK);
386 f2fs_msg(sbi->sb, KERN_WARNING,
387 "inode (ino:%lu) resource leak, run fsck "
388 "to fix this issue!", inode->i_ino);
389 }
390 }
391out_clear:
392 fscrypt_put_encryption_info(inode, NULL);
393 clear_inode(inode);
394}
395
396/* caller should call f2fs_lock_op() */
397void handle_failed_inode(struct inode *inode)
398{
399 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
400 int err = 0;
401
402 clear_nlink(inode);
403 make_bad_inode(inode);
404 unlock_new_inode(inode);
405
406 i_size_write(inode, 0);
407 if (F2FS_HAS_BLOCKS(inode))
408 err = f2fs_truncate(inode, false);
409
410 if (!err)
411 err = remove_inode_page(inode);
412
413 /*
414 * if we skip truncate_node in remove_inode_page bacause we failed
415 * before, it's better to find another way to release resource of
416 * this inode (e.g. valid block count, node block or nid). Here we
417 * choose to add this inode to orphan list, so that we can call iput
418 * for releasing in orphan recovery flow.
419 *
420 * Note: we should add inode to orphan list before f2fs_unlock_op()
421 * so we can prevent losing this orphan when encoutering checkpoint
422 * and following suddenly power-off.
423 */
424 if (err && err != -ENOENT) {
425 err = acquire_orphan_inode(sbi);
426 if (!err)
427 add_orphan_inode(sbi, inode->i_ino);
428 }
429
430 set_inode_flag(F2FS_I(inode), FI_FREE_NID);
431 f2fs_unlock_op(sbi);
432
433 /* iput will drop the inode object */
434 iput(inode);
435}