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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 (f2fs_inode_dirtied(inode, sync)) | |
26 | return; | |
27 | ||
28 | mark_inode_dirty_sync(inode); | |
29 | } | |
30 | ||
31 | void f2fs_set_inode_flags(struct inode *inode) | |
32 | { | |
33 | unsigned int flags = F2FS_I(inode)->i_flags; | |
34 | unsigned int new_fl = 0; | |
35 | ||
36 | if (flags & FS_SYNC_FL) | |
37 | new_fl |= S_SYNC; | |
38 | if (flags & FS_APPEND_FL) | |
39 | new_fl |= S_APPEND; | |
40 | if (flags & FS_IMMUTABLE_FL) | |
41 | new_fl |= S_IMMUTABLE; | |
42 | if (flags & FS_NOATIME_FL) | |
43 | new_fl |= S_NOATIME; | |
44 | if (flags & FS_DIRSYNC_FL) | |
45 | new_fl |= S_DIRSYNC; | |
46 | inode_set_flags(inode, new_fl, | |
47 | S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC); | |
48 | } | |
49 | ||
50 | static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri) | |
51 | { | |
52 | int extra_size = get_extra_isize(inode); | |
53 | ||
54 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || | |
55 | S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
56 | if (ri->i_addr[extra_size]) | |
57 | inode->i_rdev = old_decode_dev( | |
58 | le32_to_cpu(ri->i_addr[extra_size])); | |
59 | else | |
60 | inode->i_rdev = new_decode_dev( | |
61 | le32_to_cpu(ri->i_addr[extra_size + 1])); | |
62 | } | |
63 | } | |
64 | ||
65 | static bool __written_first_block(struct f2fs_inode *ri) | |
66 | { | |
67 | block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]); | |
68 | ||
69 | if (addr != NEW_ADDR && addr != NULL_ADDR) | |
70 | return true; | |
71 | return false; | |
72 | } | |
73 | ||
74 | static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri) | |
75 | { | |
76 | int extra_size = get_extra_isize(inode); | |
77 | ||
78 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { | |
79 | if (old_valid_dev(inode->i_rdev)) { | |
80 | ri->i_addr[extra_size] = | |
81 | cpu_to_le32(old_encode_dev(inode->i_rdev)); | |
82 | ri->i_addr[extra_size + 1] = 0; | |
83 | } else { | |
84 | ri->i_addr[extra_size] = 0; | |
85 | ri->i_addr[extra_size + 1] = | |
86 | cpu_to_le32(new_encode_dev(inode->i_rdev)); | |
87 | ri->i_addr[extra_size + 2] = 0; | |
88 | } | |
89 | } | |
90 | } | |
91 | ||
92 | static void __recover_inline_status(struct inode *inode, struct page *ipage) | |
93 | { | |
94 | void *inline_data = inline_data_addr(inode, ipage); | |
95 | __le32 *start = inline_data; | |
96 | __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32); | |
97 | ||
98 | while (start < end) { | |
99 | if (*start++) { | |
100 | f2fs_wait_on_page_writeback(ipage, NODE, true); | |
101 | ||
102 | set_inode_flag(inode, FI_DATA_EXIST); | |
103 | set_raw_inline(inode, F2FS_INODE(ipage)); | |
104 | set_page_dirty(ipage); | |
105 | return; | |
106 | } | |
107 | } | |
108 | return; | |
109 | } | |
110 | ||
111 | static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) | |
112 | { | |
113 | struct f2fs_inode *ri = &F2FS_NODE(page)->i; | |
114 | int extra_isize = le32_to_cpu(ri->i_extra_isize); | |
115 | ||
116 | if (!f2fs_sb_has_inode_chksum(sbi->sb)) | |
117 | return false; | |
118 | ||
119 | if (!RAW_IS_INODE(F2FS_NODE(page)) || !(ri->i_inline & F2FS_EXTRA_ATTR)) | |
120 | return false; | |
121 | ||
122 | if (!F2FS_FITS_IN_INODE(ri, extra_isize, i_inode_checksum)) | |
123 | return false; | |
124 | ||
125 | return true; | |
126 | } | |
127 | ||
128 | static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) | |
129 | { | |
130 | struct f2fs_node *node = F2FS_NODE(page); | |
131 | struct f2fs_inode *ri = &node->i; | |
132 | __le32 ino = node->footer.ino; | |
133 | __le32 gen = ri->i_generation; | |
134 | __u32 chksum, chksum_seed; | |
135 | __u32 dummy_cs = 0; | |
136 | unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum); | |
137 | unsigned int cs_size = sizeof(dummy_cs); | |
138 | ||
139 | chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino, | |
140 | sizeof(ino)); | |
141 | chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen)); | |
142 | ||
143 | chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset); | |
144 | chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size); | |
145 | offset += cs_size; | |
146 | chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset, | |
147 | F2FS_BLKSIZE - offset); | |
148 | return chksum; | |
149 | } | |
150 | ||
151 | bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page) | |
152 | { | |
153 | struct f2fs_inode *ri; | |
154 | __u32 provided, calculated; | |
155 | ||
156 | if (!f2fs_enable_inode_chksum(sbi, page) || | |
157 | PageDirty(page) || PageWriteback(page)) | |
158 | return true; | |
159 | ||
160 | ri = &F2FS_NODE(page)->i; | |
161 | provided = le32_to_cpu(ri->i_inode_checksum); | |
162 | calculated = f2fs_inode_chksum(sbi, page); | |
163 | ||
164 | if (provided != calculated) | |
165 | f2fs_msg(sbi->sb, KERN_WARNING, | |
166 | "checksum invalid, ino = %x, %x vs. %x", | |
167 | ino_of_node(page), provided, calculated); | |
168 | ||
169 | return provided == calculated; | |
170 | } | |
171 | ||
172 | void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page) | |
173 | { | |
174 | struct f2fs_inode *ri = &F2FS_NODE(page)->i; | |
175 | ||
176 | if (!f2fs_enable_inode_chksum(sbi, page)) | |
177 | return; | |
178 | ||
179 | ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page)); | |
180 | } | |
181 | ||
182 | static int do_read_inode(struct inode *inode) | |
183 | { | |
184 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
185 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
186 | struct page *node_page; | |
187 | struct f2fs_inode *ri; | |
188 | projid_t i_projid; | |
189 | ||
190 | /* Check if ino is within scope */ | |
191 | if (check_nid_range(sbi, inode->i_ino)) { | |
192 | f2fs_msg(inode->i_sb, KERN_ERR, "bad inode number: %lu", | |
193 | (unsigned long) inode->i_ino); | |
194 | WARN_ON(1); | |
195 | return -EINVAL; | |
196 | } | |
197 | ||
198 | node_page = get_node_page(sbi, inode->i_ino); | |
199 | if (IS_ERR(node_page)) | |
200 | return PTR_ERR(node_page); | |
201 | ||
202 | ri = F2FS_INODE(node_page); | |
203 | ||
204 | inode->i_mode = le16_to_cpu(ri->i_mode); | |
205 | i_uid_write(inode, le32_to_cpu(ri->i_uid)); | |
206 | i_gid_write(inode, le32_to_cpu(ri->i_gid)); | |
207 | set_nlink(inode, le32_to_cpu(ri->i_links)); | |
208 | inode->i_size = le64_to_cpu(ri->i_size); | |
209 | inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); | |
210 | ||
211 | inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); | |
212 | inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); | |
213 | inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); | |
214 | inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); | |
215 | inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); | |
216 | inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); | |
217 | inode->i_generation = le32_to_cpu(ri->i_generation); | |
218 | ||
219 | fi->i_current_depth = le32_to_cpu(ri->i_current_depth); | |
220 | fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); | |
221 | fi->i_flags = le32_to_cpu(ri->i_flags); | |
222 | fi->flags = 0; | |
223 | fi->i_advise = ri->i_advise; | |
224 | fi->i_pino = le32_to_cpu(ri->i_pino); | |
225 | fi->i_dir_level = ri->i_dir_level; | |
226 | ||
227 | if (f2fs_init_extent_tree(inode, &ri->i_ext)) | |
228 | set_page_dirty(node_page); | |
229 | ||
230 | get_inline_info(inode, ri); | |
231 | ||
232 | fi->i_extra_isize = f2fs_has_extra_attr(inode) ? | |
233 | le16_to_cpu(ri->i_extra_isize) : 0; | |
234 | ||
235 | /* check data exist */ | |
236 | if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) | |
237 | __recover_inline_status(inode, node_page); | |
238 | ||
239 | /* get rdev by using inline_info */ | |
240 | __get_inode_rdev(inode, ri); | |
241 | ||
242 | if (__written_first_block(ri)) | |
243 | set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN); | |
244 | ||
245 | if (!need_inode_block_update(sbi, inode->i_ino)) | |
246 | fi->last_disk_size = inode->i_size; | |
247 | ||
248 | if (fi->i_flags & FS_PROJINHERIT_FL) | |
249 | set_inode_flag(inode, FI_PROJ_INHERIT); | |
250 | ||
251 | if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi->sb) && | |
252 | F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) | |
253 | i_projid = (projid_t)le32_to_cpu(ri->i_projid); | |
254 | else | |
255 | i_projid = F2FS_DEF_PROJID; | |
256 | fi->i_projid = make_kprojid(&init_user_ns, i_projid); | |
257 | ||
258 | f2fs_put_page(node_page, 1); | |
259 | ||
260 | stat_inc_inline_xattr(inode); | |
261 | stat_inc_inline_inode(inode); | |
262 | stat_inc_inline_dir(inode); | |
263 | ||
264 | return 0; | |
265 | } | |
266 | ||
267 | struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) | |
268 | { | |
269 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
270 | struct inode *inode; | |
271 | int ret = 0; | |
272 | ||
273 | inode = iget_locked(sb, ino); | |
274 | if (!inode) | |
275 | return ERR_PTR(-ENOMEM); | |
276 | ||
277 | if (!(inode->i_state & I_NEW)) { | |
278 | trace_f2fs_iget(inode); | |
279 | return inode; | |
280 | } | |
281 | if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi)) | |
282 | goto make_now; | |
283 | ||
284 | ret = do_read_inode(inode); | |
285 | if (ret) | |
286 | goto bad_inode; | |
287 | make_now: | |
288 | if (ino == F2FS_NODE_INO(sbi)) { | |
289 | inode->i_mapping->a_ops = &f2fs_node_aops; | |
290 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO); | |
291 | } else if (ino == F2FS_META_INO(sbi)) { | |
292 | inode->i_mapping->a_ops = &f2fs_meta_aops; | |
293 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO); | |
294 | } else if (S_ISREG(inode->i_mode)) { | |
295 | inode->i_op = &f2fs_file_inode_operations; | |
296 | inode->i_fop = &f2fs_file_operations; | |
297 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
298 | } else if (S_ISDIR(inode->i_mode)) { | |
299 | inode->i_op = &f2fs_dir_inode_operations; | |
300 | inode->i_fop = &f2fs_dir_operations; | |
301 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
302 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_HIGH_ZERO); | |
303 | } else if (S_ISLNK(inode->i_mode)) { | |
304 | if (f2fs_encrypted_inode(inode)) | |
305 | inode->i_op = &f2fs_encrypted_symlink_inode_operations; | |
306 | else | |
307 | inode->i_op = &f2fs_symlink_inode_operations; | |
308 | inode_nohighmem(inode); | |
309 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
310 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || | |
311 | S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
312 | inode->i_op = &f2fs_special_inode_operations; | |
313 | init_special_inode(inode, inode->i_mode, inode->i_rdev); | |
314 | } else { | |
315 | ret = -EIO; | |
316 | goto bad_inode; | |
317 | } | |
318 | f2fs_set_inode_flags(inode); | |
319 | unlock_new_inode(inode); | |
320 | trace_f2fs_iget(inode); | |
321 | return inode; | |
322 | ||
323 | bad_inode: | |
324 | iget_failed(inode); | |
325 | trace_f2fs_iget_exit(inode, ret); | |
326 | return ERR_PTR(ret); | |
327 | } | |
328 | ||
329 | struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) | |
330 | { | |
331 | struct inode *inode; | |
332 | retry: | |
333 | inode = f2fs_iget(sb, ino); | |
334 | if (IS_ERR(inode)) { | |
335 | if (PTR_ERR(inode) == -ENOMEM) { | |
336 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
337 | goto retry; | |
338 | } | |
339 | } | |
340 | return inode; | |
341 | } | |
342 | ||
343 | int update_inode(struct inode *inode, struct page *node_page) | |
344 | { | |
345 | struct f2fs_inode *ri; | |
346 | struct extent_tree *et = F2FS_I(inode)->extent_tree; | |
347 | ||
348 | f2fs_inode_synced(inode); | |
349 | ||
350 | f2fs_wait_on_page_writeback(node_page, NODE, true); | |
351 | ||
352 | ri = F2FS_INODE(node_page); | |
353 | ||
354 | ri->i_mode = cpu_to_le16(inode->i_mode); | |
355 | ri->i_advise = F2FS_I(inode)->i_advise; | |
356 | ri->i_uid = cpu_to_le32(i_uid_read(inode)); | |
357 | ri->i_gid = cpu_to_le32(i_gid_read(inode)); | |
358 | ri->i_links = cpu_to_le32(inode->i_nlink); | |
359 | ri->i_size = cpu_to_le64(i_size_read(inode)); | |
360 | ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); | |
361 | ||
362 | if (et) { | |
363 | read_lock(&et->lock); | |
364 | set_raw_extent(&et->largest, &ri->i_ext); | |
365 | read_unlock(&et->lock); | |
366 | } else { | |
367 | memset(&ri->i_ext, 0, sizeof(ri->i_ext)); | |
368 | } | |
369 | set_raw_inline(inode, ri); | |
370 | ||
371 | ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); | |
372 | ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); | |
373 | ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); | |
374 | ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); | |
375 | ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); | |
376 | ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); | |
377 | ri->i_current_depth = cpu_to_le32(F2FS_I(inode)->i_current_depth); | |
378 | ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); | |
379 | ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); | |
380 | ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); | |
381 | ri->i_generation = cpu_to_le32(inode->i_generation); | |
382 | ri->i_dir_level = F2FS_I(inode)->i_dir_level; | |
383 | ||
384 | if (f2fs_has_extra_attr(inode)) { | |
385 | ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); | |
386 | ||
387 | if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) && | |
388 | F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, | |
389 | i_projid)) { | |
390 | projid_t i_projid; | |
391 | ||
392 | i_projid = from_kprojid(&init_user_ns, | |
393 | F2FS_I(inode)->i_projid); | |
394 | ri->i_projid = cpu_to_le32(i_projid); | |
395 | } | |
396 | } | |
397 | ||
398 | __set_inode_rdev(inode, ri); | |
399 | set_cold_node(inode, node_page); | |
400 | ||
401 | /* deleted inode */ | |
402 | if (inode->i_nlink == 0) | |
403 | clear_inline_node(node_page); | |
404 | ||
405 | return set_page_dirty(node_page); | |
406 | } | |
407 | ||
408 | int update_inode_page(struct inode *inode) | |
409 | { | |
410 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
411 | struct page *node_page; | |
412 | int ret = 0; | |
413 | retry: | |
414 | node_page = get_node_page(sbi, inode->i_ino); | |
415 | if (IS_ERR(node_page)) { | |
416 | int err = PTR_ERR(node_page); | |
417 | if (err == -ENOMEM) { | |
418 | cond_resched(); | |
419 | goto retry; | |
420 | } else if (err != -ENOENT) { | |
421 | f2fs_stop_checkpoint(sbi, false); | |
422 | } | |
423 | return 0; | |
424 | } | |
425 | ret = update_inode(inode, node_page); | |
426 | f2fs_put_page(node_page, 1); | |
427 | return ret; | |
428 | } | |
429 | ||
430 | int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) | |
431 | { | |
432 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
433 | ||
434 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
435 | inode->i_ino == F2FS_META_INO(sbi)) | |
436 | return 0; | |
437 | ||
438 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) | |
439 | return 0; | |
440 | ||
441 | /* | |
442 | * We need to balance fs here to prevent from producing dirty node pages | |
443 | * during the urgent cleaning time when runing out of free sections. | |
444 | */ | |
445 | update_inode_page(inode); | |
446 | if (wbc && wbc->nr_to_write) | |
447 | f2fs_balance_fs(sbi, true); | |
448 | return 0; | |
449 | } | |
450 | ||
451 | /* | |
452 | * Called at the last iput() if i_nlink is zero | |
453 | */ | |
454 | void f2fs_evict_inode(struct inode *inode) | |
455 | { | |
456 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
457 | nid_t xnid = F2FS_I(inode)->i_xattr_nid; | |
458 | int err = 0; | |
459 | ||
460 | /* some remained atomic pages should discarded */ | |
461 | if (f2fs_is_atomic_file(inode)) | |
462 | drop_inmem_pages(inode); | |
463 | ||
464 | trace_f2fs_evict_inode(inode); | |
465 | truncate_inode_pages_final(&inode->i_data); | |
466 | ||
467 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
468 | inode->i_ino == F2FS_META_INO(sbi)) | |
469 | goto out_clear; | |
470 | ||
471 | f2fs_bug_on(sbi, get_dirty_pages(inode)); | |
472 | remove_dirty_inode(inode); | |
473 | ||
474 | f2fs_destroy_extent_tree(inode); | |
475 | ||
476 | if (inode->i_nlink || is_bad_inode(inode)) | |
477 | goto no_delete; | |
478 | ||
479 | dquot_initialize(inode); | |
480 | ||
481 | remove_ino_entry(sbi, inode->i_ino, APPEND_INO); | |
482 | remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); | |
483 | remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); | |
484 | ||
485 | sb_start_intwrite(inode->i_sb); | |
486 | set_inode_flag(inode, FI_NO_ALLOC); | |
487 | i_size_write(inode, 0); | |
488 | retry: | |
489 | if (F2FS_HAS_BLOCKS(inode)) | |
490 | err = f2fs_truncate(inode); | |
491 | ||
492 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
493 | if (time_to_inject(sbi, FAULT_EVICT_INODE)) { | |
494 | f2fs_show_injection_info(FAULT_EVICT_INODE); | |
495 | err = -EIO; | |
496 | } | |
497 | #endif | |
498 | if (!err) { | |
499 | f2fs_lock_op(sbi); | |
500 | err = remove_inode_page(inode); | |
501 | f2fs_unlock_op(sbi); | |
502 | if (err == -ENOENT) | |
503 | err = 0; | |
504 | } | |
505 | ||
506 | /* give more chances, if ENOMEM case */ | |
507 | if (err == -ENOMEM) { | |
508 | err = 0; | |
509 | goto retry; | |
510 | } | |
511 | ||
512 | if (err) | |
513 | update_inode_page(inode); | |
514 | dquot_free_inode(inode); | |
515 | sb_end_intwrite(inode->i_sb); | |
516 | no_delete: | |
517 | dquot_drop(inode); | |
518 | ||
519 | stat_dec_inline_xattr(inode); | |
520 | stat_dec_inline_dir(inode); | |
521 | stat_dec_inline_inode(inode); | |
522 | ||
523 | if (!is_set_ckpt_flags(sbi, CP_ERROR_FLAG)) | |
524 | f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); | |
525 | ||
526 | /* ino == 0, if f2fs_new_inode() was failed t*/ | |
527 | if (inode->i_ino) | |
528 | invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, | |
529 | inode->i_ino); | |
530 | if (xnid) | |
531 | invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); | |
532 | if (inode->i_nlink) { | |
533 | if (is_inode_flag_set(inode, FI_APPEND_WRITE)) | |
534 | add_ino_entry(sbi, inode->i_ino, APPEND_INO); | |
535 | if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) | |
536 | add_ino_entry(sbi, inode->i_ino, UPDATE_INO); | |
537 | } | |
538 | if (is_inode_flag_set(inode, FI_FREE_NID)) { | |
539 | alloc_nid_failed(sbi, inode->i_ino); | |
540 | clear_inode_flag(inode, FI_FREE_NID); | |
541 | } else { | |
542 | f2fs_bug_on(sbi, err && | |
543 | !exist_written_data(sbi, inode->i_ino, ORPHAN_INO)); | |
544 | } | |
545 | out_clear: | |
546 | fscrypt_put_encryption_info(inode, NULL); | |
547 | clear_inode(inode); | |
548 | } | |
549 | ||
550 | /* caller should call f2fs_lock_op() */ | |
551 | void handle_failed_inode(struct inode *inode) | |
552 | { | |
553 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
554 | struct node_info ni; | |
555 | ||
556 | /* | |
557 | * clear nlink of inode in order to release resource of inode | |
558 | * immediately. | |
559 | */ | |
560 | clear_nlink(inode); | |
561 | ||
562 | /* | |
563 | * we must call this to avoid inode being remained as dirty, resulting | |
564 | * in a panic when flushing dirty inodes in gdirty_list. | |
565 | */ | |
566 | update_inode_page(inode); | |
567 | f2fs_inode_synced(inode); | |
568 | ||
569 | /* don't make bad inode, since it becomes a regular file. */ | |
570 | unlock_new_inode(inode); | |
571 | ||
572 | /* | |
573 | * Note: we should add inode to orphan list before f2fs_unlock_op() | |
574 | * so we can prevent losing this orphan when encoutering checkpoint | |
575 | * and following suddenly power-off. | |
576 | */ | |
577 | get_node_info(sbi, inode->i_ino, &ni); | |
578 | ||
579 | if (ni.blk_addr != NULL_ADDR) { | |
580 | int err = acquire_orphan_inode(sbi); | |
581 | if (err) { | |
582 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
583 | f2fs_msg(sbi->sb, KERN_WARNING, | |
584 | "Too many orphan inodes, run fsck to fix."); | |
585 | } else { | |
586 | add_orphan_inode(inode); | |
587 | } | |
588 | alloc_nid_done(sbi, inode->i_ino); | |
589 | } else { | |
590 | set_inode_flag(inode, FI_FREE_NID); | |
591 | } | |
592 | ||
593 | f2fs_unlock_op(sbi); | |
594 | ||
595 | /* iput will drop the inode object */ | |
596 | iput(inode); | |
597 | } |