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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/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}
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/writeback.h>
12#include <linux/sched/mm.h>
13
14#include "f2fs.h"
15#include "node.h"
16#include "segment.h"
17#include "xattr.h"
18
19#include <trace/events/f2fs.h>
20
21#ifdef CONFIG_F2FS_FS_COMPRESSION
22extern const struct address_space_operations f2fs_compress_aops;
23#endif
24
25void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync)
26{
27 if (is_inode_flag_set(inode, FI_NEW_INODE))
28 return;
29
30 if (f2fs_inode_dirtied(inode, sync))
31 return;
32
33 mark_inode_dirty_sync(inode);
34}
35
36void f2fs_set_inode_flags(struct inode *inode)
37{
38 unsigned int flags = F2FS_I(inode)->i_flags;
39 unsigned int new_fl = 0;
40
41 if (flags & F2FS_SYNC_FL)
42 new_fl |= S_SYNC;
43 if (flags & F2FS_APPEND_FL)
44 new_fl |= S_APPEND;
45 if (flags & F2FS_IMMUTABLE_FL)
46 new_fl |= S_IMMUTABLE;
47 if (flags & F2FS_NOATIME_FL)
48 new_fl |= S_NOATIME;
49 if (flags & F2FS_DIRSYNC_FL)
50 new_fl |= S_DIRSYNC;
51 if (file_is_encrypt(inode))
52 new_fl |= S_ENCRYPTED;
53 if (file_is_verity(inode))
54 new_fl |= S_VERITY;
55 if (flags & F2FS_CASEFOLD_FL)
56 new_fl |= S_CASEFOLD;
57 inode_set_flags(inode, new_fl,
58 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
59 S_ENCRYPTED|S_VERITY|S_CASEFOLD);
60}
61
62static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
63{
64 int extra_size = get_extra_isize(inode);
65
66 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
67 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
68 if (ri->i_addr[extra_size])
69 inode->i_rdev = old_decode_dev(
70 le32_to_cpu(ri->i_addr[extra_size]));
71 else
72 inode->i_rdev = new_decode_dev(
73 le32_to_cpu(ri->i_addr[extra_size + 1]));
74 }
75}
76
77static int __written_first_block(struct f2fs_sb_info *sbi,
78 struct f2fs_inode *ri)
79{
80 block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]);
81
82 if (!__is_valid_data_blkaddr(addr))
83 return 1;
84 if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE)) {
85 f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
86 return -EFSCORRUPTED;
87 }
88 return 0;
89}
90
91static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
92{
93 int extra_size = get_extra_isize(inode);
94
95 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
96 if (old_valid_dev(inode->i_rdev)) {
97 ri->i_addr[extra_size] =
98 cpu_to_le32(old_encode_dev(inode->i_rdev));
99 ri->i_addr[extra_size + 1] = 0;
100 } else {
101 ri->i_addr[extra_size] = 0;
102 ri->i_addr[extra_size + 1] =
103 cpu_to_le32(new_encode_dev(inode->i_rdev));
104 ri->i_addr[extra_size + 2] = 0;
105 }
106 }
107}
108
109static void __recover_inline_status(struct inode *inode, struct page *ipage)
110{
111 void *inline_data = inline_data_addr(inode, ipage);
112 __le32 *start = inline_data;
113 __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32);
114
115 while (start < end) {
116 if (*start++) {
117 f2fs_wait_on_page_writeback(ipage, NODE, true, true);
118
119 set_inode_flag(inode, FI_DATA_EXIST);
120 set_raw_inline(inode, F2FS_INODE(ipage));
121 set_page_dirty(ipage);
122 return;
123 }
124 }
125 return;
126}
127
128static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
129{
130 struct f2fs_inode *ri = &F2FS_NODE(page)->i;
131
132 if (!f2fs_sb_has_inode_chksum(sbi))
133 return false;
134
135 if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR))
136 return false;
137
138 if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize),
139 i_inode_checksum))
140 return false;
141
142 return true;
143}
144
145static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
146{
147 struct f2fs_node *node = F2FS_NODE(page);
148 struct f2fs_inode *ri = &node->i;
149 __le32 ino = node->footer.ino;
150 __le32 gen = ri->i_generation;
151 __u32 chksum, chksum_seed;
152 __u32 dummy_cs = 0;
153 unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum);
154 unsigned int cs_size = sizeof(dummy_cs);
155
156 chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino,
157 sizeof(ino));
158 chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen));
159
160 chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset);
161 chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size);
162 offset += cs_size;
163 chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset,
164 F2FS_BLKSIZE - offset);
165 return chksum;
166}
167
168bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
169{
170 struct f2fs_inode *ri;
171 __u32 provided, calculated;
172
173 if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)))
174 return true;
175
176#ifdef CONFIG_F2FS_CHECK_FS
177 if (!f2fs_enable_inode_chksum(sbi, page))
178#else
179 if (!f2fs_enable_inode_chksum(sbi, page) ||
180 PageDirty(page) || PageWriteback(page))
181#endif
182 return true;
183
184 ri = &F2FS_NODE(page)->i;
185 provided = le32_to_cpu(ri->i_inode_checksum);
186 calculated = f2fs_inode_chksum(sbi, page);
187
188 if (provided != calculated)
189 f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x",
190 page->index, ino_of_node(page), provided, calculated);
191
192 return provided == calculated;
193}
194
195void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
196{
197 struct f2fs_inode *ri = &F2FS_NODE(page)->i;
198
199 if (!f2fs_enable_inode_chksum(sbi, page))
200 return;
201
202 ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
203}
204
205static bool sanity_check_inode(struct inode *inode, struct page *node_page)
206{
207 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
208 struct f2fs_inode_info *fi = F2FS_I(inode);
209 struct f2fs_inode *ri = F2FS_INODE(node_page);
210 unsigned long long iblocks;
211
212 iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks);
213 if (!iblocks) {
214 set_sbi_flag(sbi, SBI_NEED_FSCK);
215 f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.",
216 __func__, inode->i_ino, iblocks);
217 return false;
218 }
219
220 if (ino_of_node(node_page) != nid_of_node(node_page)) {
221 set_sbi_flag(sbi, SBI_NEED_FSCK);
222 f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.",
223 __func__, inode->i_ino,
224 ino_of_node(node_page), nid_of_node(node_page));
225 return false;
226 }
227
228 if (f2fs_sb_has_flexible_inline_xattr(sbi)
229 && !f2fs_has_extra_attr(inode)) {
230 set_sbi_flag(sbi, SBI_NEED_FSCK);
231 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.",
232 __func__, inode->i_ino);
233 return false;
234 }
235
236 if (f2fs_has_extra_attr(inode) &&
237 !f2fs_sb_has_extra_attr(sbi)) {
238 set_sbi_flag(sbi, SBI_NEED_FSCK);
239 f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off",
240 __func__, inode->i_ino);
241 return false;
242 }
243
244 if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE ||
245 fi->i_extra_isize % sizeof(__le32)) {
246 set_sbi_flag(sbi, SBI_NEED_FSCK);
247 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu",
248 __func__, inode->i_ino, fi->i_extra_isize,
249 F2FS_TOTAL_EXTRA_ATTR_SIZE);
250 return false;
251 }
252
253 if (f2fs_has_extra_attr(inode) &&
254 f2fs_sb_has_flexible_inline_xattr(sbi) &&
255 f2fs_has_inline_xattr(inode) &&
256 (!fi->i_inline_xattr_size ||
257 fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) {
258 set_sbi_flag(sbi, SBI_NEED_FSCK);
259 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %zu",
260 __func__, inode->i_ino, fi->i_inline_xattr_size,
261 MAX_INLINE_XATTR_SIZE);
262 return false;
263 }
264
265 if (fi->extent_tree[EX_READ]) {
266 struct extent_info *ei = &fi->extent_tree[EX_READ]->largest;
267
268 if (ei->len &&
269 (!f2fs_is_valid_blkaddr(sbi, ei->blk,
270 DATA_GENERIC_ENHANCE) ||
271 !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1,
272 DATA_GENERIC_ENHANCE))) {
273 set_sbi_flag(sbi, SBI_NEED_FSCK);
274 f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix",
275 __func__, inode->i_ino,
276 ei->blk, ei->fofs, ei->len);
277 return false;
278 }
279 }
280
281 if (f2fs_sanity_check_inline_data(inode)) {
282 set_sbi_flag(sbi, SBI_NEED_FSCK);
283 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix",
284 __func__, inode->i_ino, inode->i_mode);
285 return false;
286 }
287
288 if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) {
289 set_sbi_flag(sbi, SBI_NEED_FSCK);
290 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix",
291 __func__, inode->i_ino, inode->i_mode);
292 return false;
293 }
294
295 if ((fi->i_flags & F2FS_CASEFOLD_FL) && !f2fs_sb_has_casefold(sbi)) {
296 set_sbi_flag(sbi, SBI_NEED_FSCK);
297 f2fs_warn(sbi, "%s: inode (ino=%lx) has casefold flag, but casefold feature is off",
298 __func__, inode->i_ino);
299 return false;
300 }
301
302 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
303 fi->i_flags & F2FS_COMPR_FL &&
304 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
305 i_log_cluster_size)) {
306 if (ri->i_compress_algorithm >= COMPRESS_MAX) {
307 set_sbi_flag(sbi, SBI_NEED_FSCK);
308 f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
309 "compress algorithm: %u, run fsck to fix",
310 __func__, inode->i_ino,
311 ri->i_compress_algorithm);
312 return false;
313 }
314 if (le64_to_cpu(ri->i_compr_blocks) >
315 SECTOR_TO_BLOCK(inode->i_blocks)) {
316 set_sbi_flag(sbi, SBI_NEED_FSCK);
317 f2fs_warn(sbi, "%s: inode (ino=%lx) has inconsistent "
318 "i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix",
319 __func__, inode->i_ino,
320 le64_to_cpu(ri->i_compr_blocks),
321 SECTOR_TO_BLOCK(inode->i_blocks));
322 return false;
323 }
324 if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
325 ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) {
326 set_sbi_flag(sbi, SBI_NEED_FSCK);
327 f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
328 "log cluster size: %u, run fsck to fix",
329 __func__, inode->i_ino,
330 ri->i_log_cluster_size);
331 return false;
332 }
333 }
334
335 return true;
336}
337
338static void init_idisk_time(struct inode *inode)
339{
340 struct f2fs_inode_info *fi = F2FS_I(inode);
341
342 fi->i_disk_time[0] = inode->i_atime;
343 fi->i_disk_time[1] = inode->i_ctime;
344 fi->i_disk_time[2] = inode->i_mtime;
345 fi->i_disk_time[3] = fi->i_crtime;
346}
347
348static int do_read_inode(struct inode *inode)
349{
350 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
351 struct f2fs_inode_info *fi = F2FS_I(inode);
352 struct page *node_page;
353 struct f2fs_inode *ri;
354 projid_t i_projid;
355 int err;
356
357 /* Check if ino is within scope */
358 if (f2fs_check_nid_range(sbi, inode->i_ino))
359 return -EINVAL;
360
361 node_page = f2fs_get_node_page(sbi, inode->i_ino);
362 if (IS_ERR(node_page))
363 return PTR_ERR(node_page);
364
365 ri = F2FS_INODE(node_page);
366
367 inode->i_mode = le16_to_cpu(ri->i_mode);
368 i_uid_write(inode, le32_to_cpu(ri->i_uid));
369 i_gid_write(inode, le32_to_cpu(ri->i_gid));
370 set_nlink(inode, le32_to_cpu(ri->i_links));
371 inode->i_size = le64_to_cpu(ri->i_size);
372 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
373
374 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
375 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
376 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
377 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
378 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
379 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
380 inode->i_generation = le32_to_cpu(ri->i_generation);
381 if (S_ISDIR(inode->i_mode))
382 fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
383 else if (S_ISREG(inode->i_mode))
384 fi->i_gc_failures[GC_FAILURE_PIN] =
385 le16_to_cpu(ri->i_gc_failures);
386 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
387 fi->i_flags = le32_to_cpu(ri->i_flags);
388 if (S_ISREG(inode->i_mode))
389 fi->i_flags &= ~F2FS_PROJINHERIT_FL;
390 bitmap_zero(fi->flags, FI_MAX);
391 fi->i_advise = ri->i_advise;
392 fi->i_pino = le32_to_cpu(ri->i_pino);
393 fi->i_dir_level = ri->i_dir_level;
394
395 get_inline_info(inode, ri);
396
397 fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
398 le16_to_cpu(ri->i_extra_isize) : 0;
399
400 if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
401 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
402 } else if (f2fs_has_inline_xattr(inode) ||
403 f2fs_has_inline_dentry(inode)) {
404 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
405 } else {
406
407 /*
408 * Previous inline data or directory always reserved 200 bytes
409 * in inode layout, even if inline_xattr is disabled. In order
410 * to keep inline_dentry's structure for backward compatibility,
411 * we get the space back only from inline_data.
412 */
413 fi->i_inline_xattr_size = 0;
414 }
415
416 if (!sanity_check_inode(inode, node_page)) {
417 f2fs_put_page(node_page, 1);
418 f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
419 return -EFSCORRUPTED;
420 }
421
422 /* check data exist */
423 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
424 __recover_inline_status(inode, node_page);
425
426 /* try to recover cold bit for non-dir inode */
427 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) {
428 f2fs_wait_on_page_writeback(node_page, NODE, true, true);
429 set_cold_node(node_page, false);
430 set_page_dirty(node_page);
431 }
432
433 /* get rdev by using inline_info */
434 __get_inode_rdev(inode, ri);
435
436 if (S_ISREG(inode->i_mode)) {
437 err = __written_first_block(sbi, ri);
438 if (err < 0) {
439 f2fs_put_page(node_page, 1);
440 return err;
441 }
442 if (!err)
443 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
444 }
445
446 if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
447 fi->last_disk_size = inode->i_size;
448
449 if (fi->i_flags & F2FS_PROJINHERIT_FL)
450 set_inode_flag(inode, FI_PROJ_INHERIT);
451
452 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) &&
453 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
454 i_projid = (projid_t)le32_to_cpu(ri->i_projid);
455 else
456 i_projid = F2FS_DEF_PROJID;
457 fi->i_projid = make_kprojid(&init_user_ns, i_projid);
458
459 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) &&
460 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
461 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
462 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
463 }
464
465 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
466 (fi->i_flags & F2FS_COMPR_FL)) {
467 if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
468 i_log_cluster_size)) {
469 atomic_set(&fi->i_compr_blocks,
470 le64_to_cpu(ri->i_compr_blocks));
471 fi->i_compress_algorithm = ri->i_compress_algorithm;
472 fi->i_log_cluster_size = ri->i_log_cluster_size;
473 fi->i_compress_flag = le16_to_cpu(ri->i_compress_flag);
474 fi->i_cluster_size = 1 << fi->i_log_cluster_size;
475 set_inode_flag(inode, FI_COMPRESSED_FILE);
476 }
477 }
478
479 init_idisk_time(inode);
480
481 /* Need all the flag bits */
482 f2fs_init_read_extent_tree(inode, node_page);
483 f2fs_init_age_extent_tree(inode);
484
485 f2fs_put_page(node_page, 1);
486
487 stat_inc_inline_xattr(inode);
488 stat_inc_inline_inode(inode);
489 stat_inc_inline_dir(inode);
490 stat_inc_compr_inode(inode);
491 stat_add_compr_blocks(inode, atomic_read(&fi->i_compr_blocks));
492
493 return 0;
494}
495
496static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino)
497{
498 return ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi) ||
499 ino == F2FS_COMPRESS_INO(sbi);
500}
501
502struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
503{
504 struct f2fs_sb_info *sbi = F2FS_SB(sb);
505 struct inode *inode;
506 int ret = 0;
507
508 inode = iget_locked(sb, ino);
509 if (!inode)
510 return ERR_PTR(-ENOMEM);
511
512 if (!(inode->i_state & I_NEW)) {
513 if (is_meta_ino(sbi, ino)) {
514 f2fs_err(sbi, "inaccessible inode: %lu, run fsck to repair", ino);
515 set_sbi_flag(sbi, SBI_NEED_FSCK);
516 ret = -EFSCORRUPTED;
517 trace_f2fs_iget_exit(inode, ret);
518 iput(inode);
519 f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
520 return ERR_PTR(ret);
521 }
522
523 trace_f2fs_iget(inode);
524 return inode;
525 }
526
527 if (is_meta_ino(sbi, ino))
528 goto make_now;
529
530 ret = do_read_inode(inode);
531 if (ret)
532 goto bad_inode;
533make_now:
534 if (ino == F2FS_NODE_INO(sbi)) {
535 inode->i_mapping->a_ops = &f2fs_node_aops;
536 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
537 } else if (ino == F2FS_META_INO(sbi)) {
538 inode->i_mapping->a_ops = &f2fs_meta_aops;
539 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
540 } else if (ino == F2FS_COMPRESS_INO(sbi)) {
541#ifdef CONFIG_F2FS_FS_COMPRESSION
542 inode->i_mapping->a_ops = &f2fs_compress_aops;
543 /*
544 * generic_error_remove_page only truncates pages of regular
545 * inode
546 */
547 inode->i_mode |= S_IFREG;
548#endif
549 mapping_set_gfp_mask(inode->i_mapping,
550 GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE);
551 } else if (S_ISREG(inode->i_mode)) {
552 inode->i_op = &f2fs_file_inode_operations;
553 inode->i_fop = &f2fs_file_operations;
554 inode->i_mapping->a_ops = &f2fs_dblock_aops;
555 } else if (S_ISDIR(inode->i_mode)) {
556 inode->i_op = &f2fs_dir_inode_operations;
557 inode->i_fop = &f2fs_dir_operations;
558 inode->i_mapping->a_ops = &f2fs_dblock_aops;
559 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
560 } else if (S_ISLNK(inode->i_mode)) {
561 if (file_is_encrypt(inode))
562 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
563 else
564 inode->i_op = &f2fs_symlink_inode_operations;
565 inode_nohighmem(inode);
566 inode->i_mapping->a_ops = &f2fs_dblock_aops;
567 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
568 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
569 inode->i_op = &f2fs_special_inode_operations;
570 init_special_inode(inode, inode->i_mode, inode->i_rdev);
571 } else {
572 ret = -EIO;
573 goto bad_inode;
574 }
575 f2fs_set_inode_flags(inode);
576
577 if (file_should_truncate(inode) &&
578 !is_sbi_flag_set(sbi, SBI_POR_DOING)) {
579 ret = f2fs_truncate(inode);
580 if (ret)
581 goto bad_inode;
582 file_dont_truncate(inode);
583 }
584
585 unlock_new_inode(inode);
586 trace_f2fs_iget(inode);
587 return inode;
588
589bad_inode:
590 f2fs_inode_synced(inode);
591 iget_failed(inode);
592 trace_f2fs_iget_exit(inode, ret);
593 return ERR_PTR(ret);
594}
595
596struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
597{
598 struct inode *inode;
599retry:
600 inode = f2fs_iget(sb, ino);
601 if (IS_ERR(inode)) {
602 if (PTR_ERR(inode) == -ENOMEM) {
603 memalloc_retry_wait(GFP_NOFS);
604 goto retry;
605 }
606 }
607 return inode;
608}
609
610void f2fs_update_inode(struct inode *inode, struct page *node_page)
611{
612 struct f2fs_inode *ri;
613 struct extent_tree *et = F2FS_I(inode)->extent_tree[EX_READ];
614
615 f2fs_wait_on_page_writeback(node_page, NODE, true, true);
616 set_page_dirty(node_page);
617
618 f2fs_inode_synced(inode);
619
620 ri = F2FS_INODE(node_page);
621
622 ri->i_mode = cpu_to_le16(inode->i_mode);
623 ri->i_advise = F2FS_I(inode)->i_advise;
624 ri->i_uid = cpu_to_le32(i_uid_read(inode));
625 ri->i_gid = cpu_to_le32(i_gid_read(inode));
626 ri->i_links = cpu_to_le32(inode->i_nlink);
627 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
628
629 if (!f2fs_is_atomic_file(inode) ||
630 is_inode_flag_set(inode, FI_ATOMIC_COMMITTED))
631 ri->i_size = cpu_to_le64(i_size_read(inode));
632
633 if (et) {
634 read_lock(&et->lock);
635 set_raw_read_extent(&et->largest, &ri->i_ext);
636 read_unlock(&et->lock);
637 } else {
638 memset(&ri->i_ext, 0, sizeof(ri->i_ext));
639 }
640 set_raw_inline(inode, ri);
641
642 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
643 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
644 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
645 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
646 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
647 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
648 if (S_ISDIR(inode->i_mode))
649 ri->i_current_depth =
650 cpu_to_le32(F2FS_I(inode)->i_current_depth);
651 else if (S_ISREG(inode->i_mode))
652 ri->i_gc_failures =
653 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]);
654 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
655 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
656 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
657 ri->i_generation = cpu_to_le32(inode->i_generation);
658 ri->i_dir_level = F2FS_I(inode)->i_dir_level;
659
660 if (f2fs_has_extra_attr(inode)) {
661 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
662
663 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)))
664 ri->i_inline_xattr_size =
665 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
666
667 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) &&
668 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
669 i_projid)) {
670 projid_t i_projid;
671
672 i_projid = from_kprojid(&init_user_ns,
673 F2FS_I(inode)->i_projid);
674 ri->i_projid = cpu_to_le32(i_projid);
675 }
676
677 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
678 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
679 i_crtime)) {
680 ri->i_crtime =
681 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec);
682 ri->i_crtime_nsec =
683 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
684 }
685
686 if (f2fs_sb_has_compression(F2FS_I_SB(inode)) &&
687 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
688 i_log_cluster_size)) {
689 ri->i_compr_blocks =
690 cpu_to_le64(atomic_read(
691 &F2FS_I(inode)->i_compr_blocks));
692 ri->i_compress_algorithm =
693 F2FS_I(inode)->i_compress_algorithm;
694 ri->i_compress_flag =
695 cpu_to_le16(F2FS_I(inode)->i_compress_flag);
696 ri->i_log_cluster_size =
697 F2FS_I(inode)->i_log_cluster_size;
698 }
699 }
700
701 __set_inode_rdev(inode, ri);
702
703 /* deleted inode */
704 if (inode->i_nlink == 0)
705 clear_page_private_inline(node_page);
706
707 init_idisk_time(inode);
708#ifdef CONFIG_F2FS_CHECK_FS
709 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
710#endif
711}
712
713void f2fs_update_inode_page(struct inode *inode)
714{
715 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
716 struct page *node_page;
717retry:
718 node_page = f2fs_get_node_page(sbi, inode->i_ino);
719 if (IS_ERR(node_page)) {
720 int err = PTR_ERR(node_page);
721
722 if (err == -ENOMEM) {
723 cond_resched();
724 goto retry;
725 } else if (err != -ENOENT) {
726 f2fs_stop_checkpoint(sbi, false,
727 STOP_CP_REASON_UPDATE_INODE);
728 }
729 return;
730 }
731 f2fs_update_inode(inode, node_page);
732 f2fs_put_page(node_page, 1);
733}
734
735int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
736{
737 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
738
739 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
740 inode->i_ino == F2FS_META_INO(sbi))
741 return 0;
742
743 /*
744 * atime could be updated without dirtying f2fs inode in lazytime mode
745 */
746 if (f2fs_is_time_consistent(inode) &&
747 !is_inode_flag_set(inode, FI_DIRTY_INODE))
748 return 0;
749
750 if (!f2fs_is_checkpoint_ready(sbi))
751 return -ENOSPC;
752
753 /*
754 * We need to balance fs here to prevent from producing dirty node pages
755 * during the urgent cleaning time when running out of free sections.
756 */
757 f2fs_update_inode_page(inode);
758 if (wbc && wbc->nr_to_write)
759 f2fs_balance_fs(sbi, true);
760 return 0;
761}
762
763/*
764 * Called at the last iput() if i_nlink is zero
765 */
766void f2fs_evict_inode(struct inode *inode)
767{
768 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
769 nid_t xnid = F2FS_I(inode)->i_xattr_nid;
770 int err = 0;
771
772 f2fs_abort_atomic_write(inode, true);
773
774 trace_f2fs_evict_inode(inode);
775 truncate_inode_pages_final(&inode->i_data);
776
777 if ((inode->i_nlink || is_bad_inode(inode)) &&
778 test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode))
779 f2fs_invalidate_compress_pages(sbi, inode->i_ino);
780
781 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
782 inode->i_ino == F2FS_META_INO(sbi) ||
783 inode->i_ino == F2FS_COMPRESS_INO(sbi))
784 goto out_clear;
785
786 f2fs_bug_on(sbi, get_dirty_pages(inode));
787 f2fs_remove_dirty_inode(inode);
788
789 f2fs_destroy_extent_tree(inode);
790
791 if (inode->i_nlink || is_bad_inode(inode))
792 goto no_delete;
793
794 err = f2fs_dquot_initialize(inode);
795 if (err) {
796 err = 0;
797 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
798 }
799
800 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
801 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
802 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
803
804 if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING))
805 sb_start_intwrite(inode->i_sb);
806 set_inode_flag(inode, FI_NO_ALLOC);
807 i_size_write(inode, 0);
808retry:
809 if (F2FS_HAS_BLOCKS(inode))
810 err = f2fs_truncate(inode);
811
812 if (time_to_inject(sbi, FAULT_EVICT_INODE)) {
813 f2fs_show_injection_info(sbi, FAULT_EVICT_INODE);
814 err = -EIO;
815 }
816
817 if (!err) {
818 f2fs_lock_op(sbi);
819 err = f2fs_remove_inode_page(inode);
820 f2fs_unlock_op(sbi);
821 if (err == -ENOENT) {
822 err = 0;
823
824 /*
825 * in fuzzed image, another node may has the same
826 * block address as inode's, if it was truncated
827 * previously, truncation of inode node will fail.
828 */
829 if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
830 f2fs_warn(F2FS_I_SB(inode),
831 "f2fs_evict_inode: inconsistent node id, ino:%lu",
832 inode->i_ino);
833 f2fs_inode_synced(inode);
834 set_sbi_flag(sbi, SBI_NEED_FSCK);
835 }
836 }
837 }
838
839 /* give more chances, if ENOMEM case */
840 if (err == -ENOMEM) {
841 err = 0;
842 goto retry;
843 }
844
845 if (err) {
846 f2fs_update_inode_page(inode);
847 if (dquot_initialize_needed(inode))
848 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
849 }
850 if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING))
851 sb_end_intwrite(inode->i_sb);
852no_delete:
853 dquot_drop(inode);
854
855 stat_dec_inline_xattr(inode);
856 stat_dec_inline_dir(inode);
857 stat_dec_inline_inode(inode);
858 stat_dec_compr_inode(inode);
859 stat_sub_compr_blocks(inode,
860 atomic_read(&F2FS_I(inode)->i_compr_blocks));
861
862 if (likely(!f2fs_cp_error(sbi) &&
863 !is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
864 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
865 else
866 f2fs_inode_synced(inode);
867
868 /* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */
869 if (inode->i_ino)
870 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
871 inode->i_ino);
872 if (xnid)
873 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
874 if (inode->i_nlink) {
875 if (is_inode_flag_set(inode, FI_APPEND_WRITE))
876 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
877 if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
878 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
879 }
880 if (is_inode_flag_set(inode, FI_FREE_NID)) {
881 f2fs_alloc_nid_failed(sbi, inode->i_ino);
882 clear_inode_flag(inode, FI_FREE_NID);
883 } else {
884 /*
885 * If xattr nid is corrupted, we can reach out error condition,
886 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
887 * In that case, f2fs_check_nid_range() is enough to give a clue.
888 */
889 }
890out_clear:
891 fscrypt_put_encryption_info(inode);
892 fsverity_cleanup_inode(inode);
893 clear_inode(inode);
894}
895
896/* caller should call f2fs_lock_op() */
897void f2fs_handle_failed_inode(struct inode *inode)
898{
899 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
900 struct node_info ni;
901 int err;
902
903 /*
904 * clear nlink of inode in order to release resource of inode
905 * immediately.
906 */
907 clear_nlink(inode);
908
909 /*
910 * we must call this to avoid inode being remained as dirty, resulting
911 * in a panic when flushing dirty inodes in gdirty_list.
912 */
913 f2fs_update_inode_page(inode);
914 f2fs_inode_synced(inode);
915
916 /* don't make bad inode, since it becomes a regular file. */
917 unlock_new_inode(inode);
918
919 /*
920 * Note: we should add inode to orphan list before f2fs_unlock_op()
921 * so we can prevent losing this orphan when encoutering checkpoint
922 * and following suddenly power-off.
923 */
924 err = f2fs_get_node_info(sbi, inode->i_ino, &ni, false);
925 if (err) {
926 set_sbi_flag(sbi, SBI_NEED_FSCK);
927 set_inode_flag(inode, FI_FREE_NID);
928 f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
929 goto out;
930 }
931
932 if (ni.blk_addr != NULL_ADDR) {
933 err = f2fs_acquire_orphan_inode(sbi);
934 if (err) {
935 set_sbi_flag(sbi, SBI_NEED_FSCK);
936 f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix.");
937 } else {
938 f2fs_add_orphan_inode(inode);
939 }
940 f2fs_alloc_nid_done(sbi, inode->i_ino);
941 } else {
942 set_inode_flag(inode, FI_FREE_NID);
943 }
944
945out:
946 f2fs_unlock_op(sbi);
947
948 /* iput will drop the inode object */
949 iput(inode);
950}