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console: Replace #if 0 with atomic var 'ignore_console_lock_warning'
[linux/fpc-iii.git] / fs / f2fs / inode.c
blobf121c864f4c0d9cfe5f7c6601d23b8af4fe88501
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/backing-dev.h>
15 #include <linux/writeback.h>
16
17 #include "f2fs.h"
18 #include "node.h"
19 #include "segment.h"
20
21 #include <trace/events/f2fs.h>
22
23 void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync)
24 {
25 if (is_inode_flag_set(inode, FI_NEW_INODE))
26 return;
27
28 if (f2fs_inode_dirtied(inode, sync))
29 return;
30
31 mark_inode_dirty_sync(inode);
32 }
33
34 void f2fs_set_inode_flags(struct inode *inode)
35 {
36 unsigned int flags = F2FS_I(inode)->i_flags;
37 unsigned int new_fl = 0;
38
39 if (flags & F2FS_SYNC_FL)
40 new_fl |= S_SYNC;
41 if (flags & F2FS_APPEND_FL)
42 new_fl |= S_APPEND;
43 if (flags & F2FS_IMMUTABLE_FL)
44 new_fl |= S_IMMUTABLE;
45 if (flags & F2FS_NOATIME_FL)
46 new_fl |= S_NOATIME;
47 if (flags & F2FS_DIRSYNC_FL)
48 new_fl |= S_DIRSYNC;
49 if (f2fs_encrypted_inode(inode))
50 new_fl |= S_ENCRYPTED;
51 inode_set_flags(inode, new_fl,
52 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
53 S_ENCRYPTED);
54 }
55
56 static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
57 {
58 int extra_size = get_extra_isize(inode);
59
60 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
61 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
62 if (ri->i_addr[extra_size])
63 inode->i_rdev = old_decode_dev(
64 le32_to_cpu(ri->i_addr[extra_size]));
65 else
66 inode->i_rdev = new_decode_dev(
67 le32_to_cpu(ri->i_addr[extra_size + 1]));
68 }
69 }
70
71 static bool __written_first_block(struct f2fs_inode *ri)
72 {
73 block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]);
74
75 if (is_valid_blkaddr(addr))
76 return true;
77 return false;
78 }
79
80 static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
81 {
82 int extra_size = get_extra_isize(inode);
83
84 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
85 if (old_valid_dev(inode->i_rdev)) {
86 ri->i_addr[extra_size] =
87 cpu_to_le32(old_encode_dev(inode->i_rdev));
88 ri->i_addr[extra_size + 1] = 0;
89 } else {
90 ri->i_addr[extra_size] = 0;
91 ri->i_addr[extra_size + 1] =
92 cpu_to_le32(new_encode_dev(inode->i_rdev));
93 ri->i_addr[extra_size + 2] = 0;
94 }
95 }
96 }
97
98 static void __recover_inline_status(struct inode *inode, struct page *ipage)
99 {
100 void *inline_data = inline_data_addr(inode, ipage);
101 __le32 *start = inline_data;
102 __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32);
103
104 while (start < end) {
105 if (*start++) {
106 f2fs_wait_on_page_writeback(ipage, NODE, true);
107
108 set_inode_flag(inode, FI_DATA_EXIST);
109 set_raw_inline(inode, F2FS_INODE(ipage));
110 set_page_dirty(ipage);
111 return;
112 }
113 }
114 return;
115 }
116
117 static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
118 {
119 struct f2fs_inode *ri = &F2FS_NODE(page)->i;
120
121 if (!f2fs_sb_has_inode_chksum(sbi->sb))
122 return false;
123
124 if (!RAW_IS_INODE(F2FS_NODE(page)) || !(ri->i_inline & F2FS_EXTRA_ATTR))
125 return false;
126
127 if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize),
128 i_inode_checksum))
129 return false;
130
131 return true;
132 }
133
134 static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
135 {
136 struct f2fs_node *node = F2FS_NODE(page);
137 struct f2fs_inode *ri = &node->i;
138 __le32 ino = node->footer.ino;
139 __le32 gen = ri->i_generation;
140 __u32 chksum, chksum_seed;
141 __u32 dummy_cs = 0;
142 unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum);
143 unsigned int cs_size = sizeof(dummy_cs);
144
145 chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino,
146 sizeof(ino));
147 chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen));
148
149 chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset);
150 chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size);
151 offset += cs_size;
152 chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset,
153 F2FS_BLKSIZE - offset);
154 return chksum;
155 }
156
157 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
158 {
159 struct f2fs_inode *ri;
160 __u32 provided, calculated;
161
162 if (!f2fs_enable_inode_chksum(sbi, page) ||
163 PageDirty(page) || PageWriteback(page))
164 return true;
165
166 ri = &F2FS_NODE(page)->i;
167 provided = le32_to_cpu(ri->i_inode_checksum);
168 calculated = f2fs_inode_chksum(sbi, page);
169
170 if (provided != calculated)
171 f2fs_msg(sbi->sb, KERN_WARNING,
172 "checksum invalid, ino = %x, %x vs. %x",
173 ino_of_node(page), provided, calculated);
174
175 return provided == calculated;
176 }
177
178 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
179 {
180 struct f2fs_inode *ri = &F2FS_NODE(page)->i;
181
182 if (!f2fs_enable_inode_chksum(sbi, page))
183 return;
184
185 ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
186 }
187
188 static bool sanity_check_inode(struct inode *inode)
189 {
190 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
191
192 if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)
193 && !f2fs_has_extra_attr(inode)) {
194 set_sbi_flag(sbi, SBI_NEED_FSCK);
195 f2fs_msg(sbi->sb, KERN_WARNING,
196 "%s: corrupted inode ino=%lx, run fsck to fix.",
197 __func__, inode->i_ino);
198 return false;
199 }
200 return true;
201 }
202
203 static int do_read_inode(struct inode *inode)
204 {
205 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
206 struct f2fs_inode_info *fi = F2FS_I(inode);
207 struct page *node_page;
208 struct f2fs_inode *ri;
209 projid_t i_projid;
210
211 /* Check if ino is within scope */
212 if (f2fs_check_nid_range(sbi, inode->i_ino))
213 return -EINVAL;
214
215 node_page = f2fs_get_node_page(sbi, inode->i_ino);
216 if (IS_ERR(node_page))
217 return PTR_ERR(node_page);
218
219 ri = F2FS_INODE(node_page);
220
221 inode->i_mode = le16_to_cpu(ri->i_mode);
222 i_uid_write(inode, le32_to_cpu(ri->i_uid));
223 i_gid_write(inode, le32_to_cpu(ri->i_gid));
224 set_nlink(inode, le32_to_cpu(ri->i_links));
225 inode->i_size = le64_to_cpu(ri->i_size);
226 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
227
228 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
229 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
230 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
231 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
232 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
233 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
234 inode->i_generation = le32_to_cpu(ri->i_generation);
235 if (S_ISDIR(inode->i_mode))
236 fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
237 else if (S_ISREG(inode->i_mode))
238 fi->i_gc_failures[GC_FAILURE_PIN] =
239 le16_to_cpu(ri->i_gc_failures);
240 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
241 fi->i_flags = le32_to_cpu(ri->i_flags);
242 fi->flags = 0;
243 fi->i_advise = ri->i_advise;
244 fi->i_pino = le32_to_cpu(ri->i_pino);
245 fi->i_dir_level = ri->i_dir_level;
246
247 if (f2fs_init_extent_tree(inode, &ri->i_ext))
248 set_page_dirty(node_page);
249
250 get_inline_info(inode, ri);
251
252 fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
253 le16_to_cpu(ri->i_extra_isize) : 0;
254
255 if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) {
256 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
257 } else if (f2fs_has_inline_xattr(inode) ||
258 f2fs_has_inline_dentry(inode)) {
259 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
260 } else {
261
262 /*
263 * Previous inline data or directory always reserved 200 bytes
264 * in inode layout, even if inline_xattr is disabled. In order
265 * to keep inline_dentry's structure for backward compatibility,
266 * we get the space back only from inline_data.
267 */
268 fi->i_inline_xattr_size = 0;
269 }
270
271 /* check data exist */
272 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
273 __recover_inline_status(inode, node_page);
274
275 /* get rdev by using inline_info */
276 __get_inode_rdev(inode, ri);
277
278 if (__written_first_block(ri))
279 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
280
281 if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
282 fi->last_disk_size = inode->i_size;
283
284 if (fi->i_flags & F2FS_PROJINHERIT_FL)
285 set_inode_flag(inode, FI_PROJ_INHERIT);
286
287 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi->sb) &&
288 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
289 i_projid = (projid_t)le32_to_cpu(ri->i_projid);
290 else
291 i_projid = F2FS_DEF_PROJID;
292 fi->i_projid = make_kprojid(&init_user_ns, i_projid);
293
294 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi->sb) &&
295 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
296 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
297 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
298 }
299
300 F2FS_I(inode)->i_disk_time[0] = timespec64_to_timespec(inode->i_atime);
301 F2FS_I(inode)->i_disk_time[1] = timespec64_to_timespec(inode->i_ctime);
302 F2FS_I(inode)->i_disk_time[2] = timespec64_to_timespec(inode->i_mtime);
303 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
304 f2fs_put_page(node_page, 1);
305
306 stat_inc_inline_xattr(inode);
307 stat_inc_inline_inode(inode);
308 stat_inc_inline_dir(inode);
309
310 return 0;
311 }
312
313 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
314 {
315 struct f2fs_sb_info *sbi = F2FS_SB(sb);
316 struct inode *inode;
317 int ret = 0;
318
319 inode = iget_locked(sb, ino);
320 if (!inode)
321 return ERR_PTR(-ENOMEM);
322
323 if (!(inode->i_state & I_NEW)) {
324 trace_f2fs_iget(inode);
325 return inode;
326 }
327 if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
328 goto make_now;
329
330 ret = do_read_inode(inode);
331 if (ret)
332 goto bad_inode;
333 if (!sanity_check_inode(inode)) {
334 ret = -EINVAL;
335 goto bad_inode;
336 }
337 make_now:
338 if (ino == F2FS_NODE_INO(sbi)) {
339 inode->i_mapping->a_ops = &f2fs_node_aops;
340 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
341 } else if (ino == F2FS_META_INO(sbi)) {
342 inode->i_mapping->a_ops = &f2fs_meta_aops;
343 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
344 } else if (S_ISREG(inode->i_mode)) {
345 inode->i_op = &f2fs_file_inode_operations;
346 inode->i_fop = &f2fs_file_operations;
347 inode->i_mapping->a_ops = &f2fs_dblock_aops;
348 } else if (S_ISDIR(inode->i_mode)) {
349 inode->i_op = &f2fs_dir_inode_operations;
350 inode->i_fop = &f2fs_dir_operations;
351 inode->i_mapping->a_ops = &f2fs_dblock_aops;
352 inode_nohighmem(inode);
353 } else if (S_ISLNK(inode->i_mode)) {
354 if (f2fs_encrypted_inode(inode))
355 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
356 else
357 inode->i_op = &f2fs_symlink_inode_operations;
358 inode_nohighmem(inode);
359 inode->i_mapping->a_ops = &f2fs_dblock_aops;
360 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
361 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
362 inode->i_op = &f2fs_special_inode_operations;
363 init_special_inode(inode, inode->i_mode, inode->i_rdev);
364 } else {
365 ret = -EIO;
366 goto bad_inode;
367 }
368 f2fs_set_inode_flags(inode);
369 unlock_new_inode(inode);
370 trace_f2fs_iget(inode);
371 return inode;
372
373 bad_inode:
374 iget_failed(inode);
375 trace_f2fs_iget_exit(inode, ret);
376 return ERR_PTR(ret);
377 }
378
379 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
380 {
381 struct inode *inode;
382 retry:
383 inode = f2fs_iget(sb, ino);
384 if (IS_ERR(inode)) {
385 if (PTR_ERR(inode) == -ENOMEM) {
386 congestion_wait(BLK_RW_ASYNC, HZ/50);
387 goto retry;
388 }
389 }
390 return inode;
391 }
392
393 void f2fs_update_inode(struct inode *inode, struct page *node_page)
394 {
395 struct f2fs_inode *ri;
396 struct extent_tree *et = F2FS_I(inode)->extent_tree;
397
398 f2fs_wait_on_page_writeback(node_page, NODE, true);
399 set_page_dirty(node_page);
400
401 f2fs_inode_synced(inode);
402
403 ri = F2FS_INODE(node_page);
404
405 ri->i_mode = cpu_to_le16(inode->i_mode);
406 ri->i_advise = F2FS_I(inode)->i_advise;
407 ri->i_uid = cpu_to_le32(i_uid_read(inode));
408 ri->i_gid = cpu_to_le32(i_gid_read(inode));
409 ri->i_links = cpu_to_le32(inode->i_nlink);
410 ri->i_size = cpu_to_le64(i_size_read(inode));
411 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
412
413 if (et) {
414 read_lock(&et->lock);
415 set_raw_extent(&et->largest, &ri->i_ext);
416 read_unlock(&et->lock);
417 } else {
418 memset(&ri->i_ext, 0, sizeof(ri->i_ext));
419 }
420 set_raw_inline(inode, ri);
421
422 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
423 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
424 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
425 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
426 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
427 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
428 if (S_ISDIR(inode->i_mode))
429 ri->i_current_depth =
430 cpu_to_le32(F2FS_I(inode)->i_current_depth);
431 else if (S_ISREG(inode->i_mode))
432 ri->i_gc_failures =
433 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]);
434 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
435 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
436 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
437 ri->i_generation = cpu_to_le32(inode->i_generation);
438 ri->i_dir_level = F2FS_I(inode)->i_dir_level;
439
440 if (f2fs_has_extra_attr(inode)) {
441 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
442
443 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)->sb))
444 ri->i_inline_xattr_size =
445 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
446
447 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) &&
448 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
449 i_projid)) {
450 projid_t i_projid;
451
452 i_projid = from_kprojid(&init_user_ns,
453 F2FS_I(inode)->i_projid);
454 ri->i_projid = cpu_to_le32(i_projid);
455 }
456
457 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)->sb) &&
458 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
459 i_crtime)) {
460 ri->i_crtime =
461 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec);
462 ri->i_crtime_nsec =
463 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
464 }
465 }
466
467 __set_inode_rdev(inode, ri);
468
469 /* deleted inode */
470 if (inode->i_nlink == 0)
471 clear_inline_node(node_page);
472
473 F2FS_I(inode)->i_disk_time[0] = timespec64_to_timespec(inode->i_atime);
474 F2FS_I(inode)->i_disk_time[1] = timespec64_to_timespec(inode->i_ctime);
475 F2FS_I(inode)->i_disk_time[2] = timespec64_to_timespec(inode->i_mtime);
476 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
477 }
478
479 void f2fs_update_inode_page(struct inode *inode)
480 {
481 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
482 struct page *node_page;
483 retry:
484 node_page = f2fs_get_node_page(sbi, inode->i_ino);
485 if (IS_ERR(node_page)) {
486 int err = PTR_ERR(node_page);
487 if (err == -ENOMEM) {
488 cond_resched();
489 goto retry;
490 } else if (err != -ENOENT) {
491 f2fs_stop_checkpoint(sbi, false);
492 }
493 return;
494 }
495 f2fs_update_inode(inode, node_page);
496 f2fs_put_page(node_page, 1);
497 }
498
499 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
500 {
501 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
502
503 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
504 inode->i_ino == F2FS_META_INO(sbi))
505 return 0;
506
507 if (!is_inode_flag_set(inode, FI_DIRTY_INODE))
508 return 0;
509
510 /*
511 * We need to balance fs here to prevent from producing dirty node pages
512 * during the urgent cleaning time when runing out of free sections.
513 */
514 f2fs_update_inode_page(inode);
515 if (wbc && wbc->nr_to_write)
516 f2fs_balance_fs(sbi, true);
517 return 0;
518 }
519
520 /*
521 * Called at the last iput() if i_nlink is zero
522 */
523 void f2fs_evict_inode(struct inode *inode)
524 {
525 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
526 nid_t xnid = F2FS_I(inode)->i_xattr_nid;
527 int err = 0;
528
529 /* some remained atomic pages should discarded */
530 if (f2fs_is_atomic_file(inode))
531 f2fs_drop_inmem_pages(inode);
532
533 trace_f2fs_evict_inode(inode);
534 truncate_inode_pages_final(&inode->i_data);
535
536 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
537 inode->i_ino == F2FS_META_INO(sbi))
538 goto out_clear;
539
540 f2fs_bug_on(sbi, get_dirty_pages(inode));
541 f2fs_remove_dirty_inode(inode);
542
543 f2fs_destroy_extent_tree(inode);
544
545 if (inode->i_nlink || is_bad_inode(inode))
546 goto no_delete;
547
548 dquot_initialize(inode);
549
550 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
551 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
552 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
553
554 sb_start_intwrite(inode->i_sb);
555 set_inode_flag(inode, FI_NO_ALLOC);
556 i_size_write(inode, 0);
557 retry:
558 if (F2FS_HAS_BLOCKS(inode))
559 err = f2fs_truncate(inode);
560
561 #ifdef CONFIG_F2FS_FAULT_INJECTION
562 if (time_to_inject(sbi, FAULT_EVICT_INODE)) {
563 f2fs_show_injection_info(FAULT_EVICT_INODE);
564 err = -EIO;
565 }
566 #endif
567 if (!err) {
568 f2fs_lock_op(sbi);
569 err = f2fs_remove_inode_page(inode);
570 f2fs_unlock_op(sbi);
571 if (err == -ENOENT)
572 err = 0;
573 }
574
575 /* give more chances, if ENOMEM case */
576 if (err == -ENOMEM) {
577 err = 0;
578 goto retry;
579 }
580
581 if (err)
582 f2fs_update_inode_page(inode);
583 dquot_free_inode(inode);
584 sb_end_intwrite(inode->i_sb);
585 no_delete:
586 dquot_drop(inode);
587
588 stat_dec_inline_xattr(inode);
589 stat_dec_inline_dir(inode);
590 stat_dec_inline_inode(inode);
591
592 if (likely(!is_set_ckpt_flags(sbi, CP_ERROR_FLAG)))
593 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
594 else
595 f2fs_inode_synced(inode);
596
597 /* ino == 0, if f2fs_new_inode() was failed t*/
598 if (inode->i_ino)
599 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
600 inode->i_ino);
601 if (xnid)
602 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
603 if (inode->i_nlink) {
604 if (is_inode_flag_set(inode, FI_APPEND_WRITE))
605 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
606 if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
607 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
608 }
609 if (is_inode_flag_set(inode, FI_FREE_NID)) {
610 f2fs_alloc_nid_failed(sbi, inode->i_ino);
611 clear_inode_flag(inode, FI_FREE_NID);
612 } else {
613 /*
614 * If xattr nid is corrupted, we can reach out error condition,
615 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
616 * In that case, f2fs_check_nid_range() is enough to give a clue.
617 */
618 }
619 out_clear:
620 fscrypt_put_encryption_info(inode);
621 clear_inode(inode);
622 }
623
624 /* caller should call f2fs_lock_op() */
625 void f2fs_handle_failed_inode(struct inode *inode)
626 {
627 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
628 struct node_info ni;
629
630 /*
631 * clear nlink of inode in order to release resource of inode
632 * immediately.
633 */
634 clear_nlink(inode);
635
636 /*
637 * we must call this to avoid inode being remained as dirty, resulting
638 * in a panic when flushing dirty inodes in gdirty_list.
639 */
640 f2fs_update_inode_page(inode);
641 f2fs_inode_synced(inode);
642
643 /* don't make bad inode, since it becomes a regular file. */
644 unlock_new_inode(inode);
645
646 /*
647 * Note: we should add inode to orphan list before f2fs_unlock_op()
648 * so we can prevent losing this orphan when encoutering checkpoint
649 * and following suddenly power-off.
650 */
651 f2fs_get_node_info(sbi, inode->i_ino, &ni);
652
653 if (ni.blk_addr != NULL_ADDR) {
654 int err = f2fs_acquire_orphan_inode(sbi);
655 if (err) {
656 set_sbi_flag(sbi, SBI_NEED_FSCK);
657 f2fs_msg(sbi->sb, KERN_WARNING,
658 "Too many orphan inodes, run fsck to fix.");
659 } else {
660 f2fs_add_orphan_inode(inode);
661 }
662 f2fs_alloc_nid_done(sbi, inode->i_ino);
663 } else {
664 set_inode_flag(inode, FI_FREE_NID);
665 }
666
667 f2fs_unlock_op(sbi);
668
669 /* iput will drop the inode object */
670 iput(inode);
671 }
Linux with added FPC-III support