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Commit | Line | Data |
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0a8165d7 | 1 | /* |
19f99cee JK |
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> | |
e8ea9b3d | 14 | #include <linux/backing-dev.h> |
19f99cee JK |
15 | #include <linux/writeback.h> |
16 | ||
17 | #include "f2fs.h" | |
18 | #include "node.h" | |
0eb0adad | 19 | #include "segment.h" |
19f99cee | 20 | |
a2a4a7e4 NJ |
21 | #include <trace/events/f2fs.h> |
22 | ||
7c45729a | 23 | void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync) |
b56ab837 | 24 | { |
7c45729a | 25 | if (f2fs_inode_dirtied(inode, sync)) |
b56ab837 | 26 | return; |
7c45729a | 27 | |
b56ab837 JK |
28 | mark_inode_dirty_sync(inode); |
29 | } | |
30 | ||
19f99cee JK |
31 | void f2fs_set_inode_flags(struct inode *inode) |
32 | { | |
33 | unsigned int flags = F2FS_I(inode)->i_flags; | |
8abfb36a | 34 | unsigned int new_fl = 0; |
19f99cee JK |
35 | |
36 | if (flags & FS_SYNC_FL) | |
8abfb36a | 37 | new_fl |= S_SYNC; |
19f99cee | 38 | if (flags & FS_APPEND_FL) |
8abfb36a | 39 | new_fl |= S_APPEND; |
19f99cee | 40 | if (flags & FS_IMMUTABLE_FL) |
8abfb36a | 41 | new_fl |= S_IMMUTABLE; |
19f99cee | 42 | if (flags & FS_NOATIME_FL) |
8abfb36a | 43 | new_fl |= S_NOATIME; |
19f99cee | 44 | if (flags & FS_DIRSYNC_FL) |
8abfb36a | 45 | new_fl |= S_DIRSYNC; |
2ee6a576 EB |
46 | if (f2fs_encrypted_inode(inode)) |
47 | new_fl |= S_ENCRYPTED; | |
6a678857 | 48 | inode_set_flags(inode, new_fl, |
2ee6a576 EB |
49 | S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC| |
50 | S_ENCRYPTED); | |
19f99cee JK |
51 | } |
52 | ||
3d1e3807 JK |
53 | static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri) |
54 | { | |
7a2af766 CY |
55 | int extra_size = get_extra_isize(inode); |
56 | ||
3d1e3807 JK |
57 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || |
58 | S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
7a2af766 CY |
59 | if (ri->i_addr[extra_size]) |
60 | inode->i_rdev = old_decode_dev( | |
61 | le32_to_cpu(ri->i_addr[extra_size])); | |
3d1e3807 | 62 | else |
7a2af766 CY |
63 | inode->i_rdev = new_decode_dev( |
64 | le32_to_cpu(ri->i_addr[extra_size + 1])); | |
3d1e3807 JK |
65 | } |
66 | } | |
67 | ||
df753783 | 68 | static int __written_first_block(struct f2fs_sb_info *sbi, |
c1ae6af4 | 69 | struct f2fs_inode *ri) |
3c6c2beb | 70 | { |
7a2af766 | 71 | block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]); |
adad81ed | 72 | |
df753783 CY |
73 | if (!__is_valid_data_blkaddr(addr)) |
74 | return 1; | |
75 | if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC)) | |
b24c662c | 76 | return -EFSCORRUPTED; |
df753783 | 77 | return 0; |
3c6c2beb JK |
78 | } |
79 | ||
3d1e3807 JK |
80 | static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri) |
81 | { | |
7a2af766 CY |
82 | int extra_size = get_extra_isize(inode); |
83 | ||
3d1e3807 JK |
84 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { |
85 | if (old_valid_dev(inode->i_rdev)) { | |
7a2af766 | 86 | ri->i_addr[extra_size] = |
6c311ec6 | 87 | cpu_to_le32(old_encode_dev(inode->i_rdev)); |
7a2af766 | 88 | ri->i_addr[extra_size + 1] = 0; |
3d1e3807 | 89 | } else { |
7a2af766 CY |
90 | ri->i_addr[extra_size] = 0; |
91 | ri->i_addr[extra_size + 1] = | |
6c311ec6 | 92 | cpu_to_le32(new_encode_dev(inode->i_rdev)); |
7a2af766 | 93 | ri->i_addr[extra_size + 2] = 0; |
3d1e3807 JK |
94 | } |
95 | } | |
96 | } | |
97 | ||
9e5ba77f | 98 | static void __recover_inline_status(struct inode *inode, struct page *ipage) |
b3d208f9 | 99 | { |
f2470371 | 100 | void *inline_data = inline_data_addr(inode, ipage); |
9e5ba77f | 101 | __le32 *start = inline_data; |
f2470371 | 102 | __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32); |
b3d208f9 | 103 | |
9e5ba77f CY |
104 | while (start < end) { |
105 | if (*start++) { | |
fec1d657 | 106 | f2fs_wait_on_page_writeback(ipage, NODE, true); |
b3d208f9 | 107 | |
91942321 JK |
108 | set_inode_flag(inode, FI_DATA_EXIST); |
109 | set_raw_inline(inode, F2FS_INODE(ipage)); | |
9e5ba77f CY |
110 | set_page_dirty(ipage); |
111 | return; | |
112 | } | |
b3d208f9 | 113 | } |
9e5ba77f | 114 | return; |
b3d208f9 JK |
115 | } |
116 | ||
704956ec CY |
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 | int extra_isize = le32_to_cpu(ri->i_extra_isize); | |
121 | ||
122 | if (!f2fs_sb_has_inode_chksum(sbi->sb)) | |
123 | return false; | |
124 | ||
125 | if (!RAW_IS_INODE(F2FS_NODE(page)) || !(ri->i_inline & F2FS_EXTRA_ATTR)) | |
126 | return false; | |
127 | ||
128 | if (!F2FS_FITS_IN_INODE(ri, extra_isize, 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 | ||
ee605234 JK |
162 | if (!f2fs_enable_inode_chksum(sbi, page) || |
163 | PageDirty(page) || PageWriteback(page)) | |
704956ec CY |
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 | ||
57e2b77c | 188 | static bool sanity_check_inode(struct inode *inode, struct page *node_page) |
9f0e83c9 JK |
189 | { |
190 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
65320307 | 191 | struct f2fs_inode_info *fi = F2FS_I(inode); |
57e2b77c CY |
192 | unsigned long long iblocks; |
193 | ||
194 | iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks); | |
195 | if (!iblocks) { | |
196 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
197 | f2fs_msg(sbi->sb, KERN_WARNING, | |
198 | "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, " | |
199 | "run fsck to fix.", | |
200 | __func__, inode->i_ino, iblocks); | |
201 | return false; | |
202 | } | |
203 | ||
204 | if (ino_of_node(node_page) != nid_of_node(node_page)) { | |
205 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
206 | f2fs_msg(sbi->sb, KERN_WARNING, | |
207 | "%s: corrupted inode footer i_ino=%lx, ino,nid: " | |
208 | "[%u, %u] run fsck to fix.", | |
209 | __func__, inode->i_ino, | |
210 | ino_of_node(node_page), nid_of_node(node_page)); | |
211 | return false; | |
212 | } | |
9f0e83c9 JK |
213 | |
214 | if (f2fs_sb_has_flexible_inline_xattr(sbi->sb) | |
215 | && !f2fs_has_extra_attr(inode)) { | |
216 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
217 | f2fs_msg(sbi->sb, KERN_WARNING, | |
218 | "%s: corrupted inode ino=%lx, run fsck to fix.", | |
219 | __func__, inode->i_ino); | |
220 | return false; | |
221 | } | |
cff00866 CY |
222 | |
223 | if (f2fs_has_extra_attr(inode) && | |
224 | !f2fs_sb_has_extra_attr(sbi->sb)) { | |
225 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
226 | f2fs_msg(sbi->sb, KERN_WARNING, | |
227 | "%s: inode (ino=%lx) is with extra_attr, " | |
228 | "but extra_attr feature is off", | |
229 | __func__, inode->i_ino); | |
230 | return false; | |
231 | } | |
7494e614 | 232 | |
65320307 CY |
233 | if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE || |
234 | fi->i_extra_isize % sizeof(__le32)) { | |
235 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
236 | f2fs_msg(sbi->sb, KERN_WARNING, | |
237 | "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, " | |
238 | "max: %zu", | |
239 | __func__, inode->i_ino, fi->i_extra_isize, | |
240 | F2FS_TOTAL_EXTRA_ATTR_SIZE); | |
241 | return false; | |
242 | } | |
243 | ||
7494e614 CY |
244 | if (F2FS_I(inode)->extent_tree) { |
245 | struct extent_info *ei = &F2FS_I(inode)->extent_tree->largest; | |
246 | ||
247 | if (ei->len && | |
248 | (!f2fs_is_valid_blkaddr(sbi, ei->blk, DATA_GENERIC) || | |
249 | !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1, | |
250 | DATA_GENERIC))) { | |
251 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
252 | f2fs_msg(sbi->sb, KERN_WARNING, | |
253 | "%s: inode (ino=%lx) extent info [%u, %u, %u] " | |
254 | "is incorrect, run fsck to fix", | |
255 | __func__, inode->i_ino, | |
256 | ei->blk, ei->fofs, ei->len); | |
257 | return false; | |
258 | } | |
259 | } | |
9f0e83c9 JK |
260 | return true; |
261 | } | |
262 | ||
19f99cee JK |
263 | static int do_read_inode(struct inode *inode) |
264 | { | |
4081363f | 265 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
19f99cee JK |
266 | struct f2fs_inode_info *fi = F2FS_I(inode); |
267 | struct page *node_page; | |
19f99cee | 268 | struct f2fs_inode *ri; |
5c57132e | 269 | projid_t i_projid; |
df753783 | 270 | int err; |
19f99cee JK |
271 | |
272 | /* Check if ino is within scope */ | |
f9e4519f | 273 | if (check_nid_range(sbi, inode->i_ino)) |
064e0823 | 274 | return -EINVAL; |
19f99cee JK |
275 | |
276 | node_page = get_node_page(sbi, inode->i_ino); | |
277 | if (IS_ERR(node_page)) | |
278 | return PTR_ERR(node_page); | |
279 | ||
58bfaf44 | 280 | ri = F2FS_INODE(node_page); |
19f99cee JK |
281 | |
282 | inode->i_mode = le16_to_cpu(ri->i_mode); | |
283 | i_uid_write(inode, le32_to_cpu(ri->i_uid)); | |
284 | i_gid_write(inode, le32_to_cpu(ri->i_gid)); | |
285 | set_nlink(inode, le32_to_cpu(ri->i_links)); | |
286 | inode->i_size = le64_to_cpu(ri->i_size); | |
000519f2 | 287 | inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); |
19f99cee JK |
288 | |
289 | inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); | |
290 | inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); | |
291 | inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); | |
292 | inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); | |
293 | inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); | |
294 | inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); | |
295 | inode->i_generation = le32_to_cpu(ri->i_generation); | |
296 | ||
297 | fi->i_current_depth = le32_to_cpu(ri->i_current_depth); | |
298 | fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); | |
299 | fi->i_flags = le32_to_cpu(ri->i_flags); | |
300 | fi->flags = 0; | |
19f99cee | 301 | fi->i_advise = ri->i_advise; |
6666e6aa | 302 | fi->i_pino = le32_to_cpu(ri->i_pino); |
38431545 | 303 | fi->i_dir_level = ri->i_dir_level; |
3d1e3807 | 304 | |
ed3d1256 JK |
305 | if (f2fs_init_extent_tree(inode, &ri->i_ext)) |
306 | set_page_dirty(node_page); | |
0c872e2d | 307 | |
91942321 | 308 | get_inline_info(inode, ri); |
3d1e3807 | 309 | |
65320307 CY |
310 | fi->i_extra_isize = f2fs_has_extra_attr(inode) ? |
311 | le16_to_cpu(ri->i_extra_isize) : 0; | |
312 | ||
57e2b77c | 313 | if (!sanity_check_inode(inode, node_page)) { |
cff00866 | 314 | f2fs_put_page(node_page, 1); |
b24c662c | 315 | return -EFSCORRUPTED; |
cff00866 CY |
316 | } |
317 | ||
6afc662e | 318 | if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) { |
6afc662e CY |
319 | fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); |
320 | } else if (f2fs_has_inline_xattr(inode) || | |
321 | f2fs_has_inline_dentry(inode)) { | |
322 | fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; | |
323 | } else { | |
324 | ||
325 | /* | |
326 | * Previous inline data or directory always reserved 200 bytes | |
327 | * in inode layout, even if inline_xattr is disabled. In order | |
328 | * to keep inline_dentry's structure for backward compatibility, | |
329 | * we get the space back only from inline_data. | |
330 | */ | |
331 | fi->i_inline_xattr_size = 0; | |
332 | } | |
333 | ||
b3d208f9 JK |
334 | /* check data exist */ |
335 | if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) | |
9e5ba77f | 336 | __recover_inline_status(inode, node_page); |
b3d208f9 | 337 | |
3bae72a7 CY |
338 | /* try to recover cold bit for non-dir inode */ |
339 | if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) { | |
340 | set_cold_node(inode, node_page); | |
341 | set_page_dirty(node_page); | |
342 | } | |
343 | ||
3d1e3807 JK |
344 | /* get rdev by using inline_info */ |
345 | __get_inode_rdev(inode, ri); | |
346 | ||
df753783 CY |
347 | err = __written_first_block(sbi, ri); |
348 | if (err < 0) { | |
349 | f2fs_put_page(node_page, 1); | |
350 | return err; | |
351 | } | |
352 | if (!err) | |
91942321 | 353 | set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN); |
3c6c2beb | 354 | |
26de9b11 JK |
355 | if (!need_inode_block_update(sbi, inode->i_ino)) |
356 | fi->last_disk_size = inode->i_size; | |
357 | ||
5c57132e CY |
358 | if (fi->i_flags & FS_PROJINHERIT_FL) |
359 | set_inode_flag(inode, FI_PROJ_INHERIT); | |
360 | ||
361 | if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi->sb) && | |
362 | F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) | |
363 | i_projid = (projid_t)le32_to_cpu(ri->i_projid); | |
364 | else | |
365 | i_projid = F2FS_DEF_PROJID; | |
366 | fi->i_projid = make_kprojid(&init_user_ns, i_projid); | |
367 | ||
19f99cee | 368 | f2fs_put_page(node_page, 1); |
9d1015dd | 369 | |
d5e8f6c9 | 370 | stat_inc_inline_xattr(inode); |
9d1015dd JK |
371 | stat_inc_inline_inode(inode); |
372 | stat_inc_inline_dir(inode); | |
373 | ||
9e5ba77f | 374 | return 0; |
19f99cee JK |
375 | } |
376 | ||
377 | struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) | |
378 | { | |
379 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
380 | struct inode *inode; | |
a2a4a7e4 | 381 | int ret = 0; |
19f99cee JK |
382 | |
383 | inode = iget_locked(sb, ino); | |
384 | if (!inode) | |
385 | return ERR_PTR(-ENOMEM); | |
a2a4a7e4 NJ |
386 | |
387 | if (!(inode->i_state & I_NEW)) { | |
388 | trace_f2fs_iget(inode); | |
19f99cee | 389 | return inode; |
a2a4a7e4 | 390 | } |
19f99cee JK |
391 | if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi)) |
392 | goto make_now; | |
393 | ||
394 | ret = do_read_inode(inode); | |
395 | if (ret) | |
396 | goto bad_inode; | |
19f99cee JK |
397 | make_now: |
398 | if (ino == F2FS_NODE_INO(sbi)) { | |
399 | inode->i_mapping->a_ops = &f2fs_node_aops; | |
fb0053ba | 400 | mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); |
19f99cee JK |
401 | } else if (ino == F2FS_META_INO(sbi)) { |
402 | inode->i_mapping->a_ops = &f2fs_meta_aops; | |
fb0053ba | 403 | mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); |
19f99cee JK |
404 | } else if (S_ISREG(inode->i_mode)) { |
405 | inode->i_op = &f2fs_file_inode_operations; | |
406 | inode->i_fop = &f2fs_file_operations; | |
407 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
408 | } else if (S_ISDIR(inode->i_mode)) { | |
409 | inode->i_op = &f2fs_dir_inode_operations; | |
410 | inode->i_fop = &f2fs_dir_operations; | |
411 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
a78186eb | 412 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_HIGH_ZERO); |
19f99cee | 413 | } else if (S_ISLNK(inode->i_mode)) { |
cbaf042a JK |
414 | if (f2fs_encrypted_inode(inode)) |
415 | inode->i_op = &f2fs_encrypted_symlink_inode_operations; | |
416 | else | |
417 | inode->i_op = &f2fs_symlink_inode_operations; | |
21fc61c7 | 418 | inode_nohighmem(inode); |
19f99cee JK |
419 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
420 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || | |
421 | S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
422 | inode->i_op = &f2fs_special_inode_operations; | |
423 | init_special_inode(inode, inode->i_mode, inode->i_rdev); | |
424 | } else { | |
425 | ret = -EIO; | |
426 | goto bad_inode; | |
427 | } | |
93607124 | 428 | f2fs_set_inode_flags(inode); |
19f99cee | 429 | unlock_new_inode(inode); |
a2a4a7e4 | 430 | trace_f2fs_iget(inode); |
19f99cee JK |
431 | return inode; |
432 | ||
433 | bad_inode: | |
d8b581af | 434 | f2fs_inode_synced(inode); |
19f99cee | 435 | iget_failed(inode); |
a2a4a7e4 | 436 | trace_f2fs_iget_exit(inode, ret); |
19f99cee JK |
437 | return ERR_PTR(ret); |
438 | } | |
439 | ||
e8ea9b3d JK |
440 | struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) |
441 | { | |
442 | struct inode *inode; | |
443 | retry: | |
444 | inode = f2fs_iget(sb, ino); | |
445 | if (IS_ERR(inode)) { | |
446 | if (PTR_ERR(inode) == -ENOMEM) { | |
447 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
448 | goto retry; | |
449 | } | |
450 | } | |
451 | return inode; | |
452 | } | |
453 | ||
12719ae1 | 454 | int update_inode(struct inode *inode, struct page *node_page) |
19f99cee | 455 | { |
19f99cee | 456 | struct f2fs_inode *ri; |
b691d98f | 457 | struct extent_tree *et = F2FS_I(inode)->extent_tree; |
19f99cee | 458 | |
1e7c48fa JK |
459 | f2fs_inode_synced(inode); |
460 | ||
fec1d657 | 461 | f2fs_wait_on_page_writeback(node_page, NODE, true); |
19f99cee | 462 | |
58bfaf44 | 463 | ri = F2FS_INODE(node_page); |
19f99cee JK |
464 | |
465 | ri->i_mode = cpu_to_le16(inode->i_mode); | |
466 | ri->i_advise = F2FS_I(inode)->i_advise; | |
467 | ri->i_uid = cpu_to_le32(i_uid_read(inode)); | |
468 | ri->i_gid = cpu_to_le32(i_gid_read(inode)); | |
469 | ri->i_links = cpu_to_le32(inode->i_nlink); | |
470 | ri->i_size = cpu_to_le64(i_size_read(inode)); | |
000519f2 | 471 | ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); |
0c872e2d | 472 | |
b691d98f CY |
473 | if (et) { |
474 | read_lock(&et->lock); | |
475 | set_raw_extent(&et->largest, &ri->i_ext); | |
476 | read_unlock(&et->lock); | |
477 | } else { | |
3e72f721 | 478 | memset(&ri->i_ext, 0, sizeof(ri->i_ext)); |
b691d98f | 479 | } |
91942321 | 480 | set_raw_inline(inode, ri); |
19f99cee JK |
481 | |
482 | ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); | |
483 | ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); | |
484 | ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); | |
485 | ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); | |
486 | ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); | |
487 | ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); | |
488 | ri->i_current_depth = cpu_to_le32(F2FS_I(inode)->i_current_depth); | |
489 | ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); | |
490 | ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); | |
6666e6aa | 491 | ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); |
19f99cee | 492 | ri->i_generation = cpu_to_le32(inode->i_generation); |
38431545 | 493 | ri->i_dir_level = F2FS_I(inode)->i_dir_level; |
7d79e75f | 494 | |
5c57132e | 495 | if (f2fs_has_extra_attr(inode)) { |
7a2af766 CY |
496 | ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); |
497 | ||
6afc662e CY |
498 | if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)->sb)) |
499 | ri->i_inline_xattr_size = | |
500 | cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size); | |
501 | ||
5c57132e CY |
502 | if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) && |
503 | F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, | |
504 | i_projid)) { | |
505 | projid_t i_projid; | |
506 | ||
507 | i_projid = from_kprojid(&init_user_ns, | |
508 | F2FS_I(inode)->i_projid); | |
509 | ri->i_projid = cpu_to_le32(i_projid); | |
510 | } | |
511 | } | |
512 | ||
3d1e3807 | 513 | __set_inode_rdev(inode, ri); |
398b1ac5 | 514 | set_cold_node(inode, node_page); |
12719ae1 | 515 | |
2049d4fc JK |
516 | /* deleted inode */ |
517 | if (inode->i_nlink == 0) | |
518 | clear_inline_node(node_page); | |
519 | ||
12719ae1 | 520 | return set_page_dirty(node_page); |
19f99cee JK |
521 | } |
522 | ||
12719ae1 | 523 | int update_inode_page(struct inode *inode) |
19f99cee | 524 | { |
4081363f | 525 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
19f99cee | 526 | struct page *node_page; |
12719ae1 | 527 | int ret = 0; |
744602cf | 528 | retry: |
19f99cee | 529 | node_page = get_node_page(sbi, inode->i_ino); |
744602cf JK |
530 | if (IS_ERR(node_page)) { |
531 | int err = PTR_ERR(node_page); | |
532 | if (err == -ENOMEM) { | |
533 | cond_resched(); | |
534 | goto retry; | |
535 | } else if (err != -ENOENT) { | |
38f91ca8 | 536 | f2fs_stop_checkpoint(sbi, false); |
744602cf | 537 | } |
12719ae1 | 538 | return 0; |
744602cf | 539 | } |
12719ae1 | 540 | ret = update_inode(inode, node_page); |
19f99cee | 541 | f2fs_put_page(node_page, 1); |
12719ae1 | 542 | return ret; |
19f99cee JK |
543 | } |
544 | ||
39936837 JK |
545 | int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) |
546 | { | |
4081363f | 547 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
39936837 JK |
548 | |
549 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
550 | inode->i_ino == F2FS_META_INO(sbi)) | |
551 | return 0; | |
552 | ||
91942321 | 553 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) |
b3783873 JK |
554 | return 0; |
555 | ||
39936837 | 556 | /* |
c5cd29d2 | 557 | * We need to balance fs here to prevent from producing dirty node pages |
39936837 JK |
558 | * during the urgent cleaning time when runing out of free sections. |
559 | */ | |
a7881893 JK |
560 | update_inode_page(inode); |
561 | if (wbc && wbc->nr_to_write) | |
2c4db1a6 | 562 | f2fs_balance_fs(sbi, true); |
744602cf | 563 | return 0; |
39936837 JK |
564 | } |
565 | ||
0a8165d7 | 566 | /* |
19f99cee JK |
567 | * Called at the last iput() if i_nlink is zero |
568 | */ | |
569 | void f2fs_evict_inode(struct inode *inode) | |
570 | { | |
4081363f | 571 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
91942321 | 572 | nid_t xnid = F2FS_I(inode)->i_xattr_nid; |
13ec7297 | 573 | int err = 0; |
19f99cee | 574 | |
88b88a66 | 575 | /* some remained atomic pages should discarded */ |
1e84371f | 576 | if (f2fs_is_atomic_file(inode)) |
29b96b54 | 577 | drop_inmem_pages(inode); |
88b88a66 | 578 | |
a2a4a7e4 | 579 | trace_f2fs_evict_inode(inode); |
91b0abe3 | 580 | truncate_inode_pages_final(&inode->i_data); |
19f99cee JK |
581 | |
582 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
583 | inode->i_ino == F2FS_META_INO(sbi)) | |
dbf20cb2 | 584 | goto out_clear; |
19f99cee | 585 | |
a7ffdbe2 | 586 | f2fs_bug_on(sbi, get_dirty_pages(inode)); |
c227f912 | 587 | remove_dirty_inode(inode); |
19f99cee | 588 | |
3e72f721 JK |
589 | f2fs_destroy_extent_tree(inode); |
590 | ||
19f99cee JK |
591 | if (inode->i_nlink || is_bad_inode(inode)) |
592 | goto no_delete; | |
593 | ||
0abd675e CY |
594 | dquot_initialize(inode); |
595 | ||
60dcedc9 CY |
596 | remove_ino_entry(sbi, inode->i_ino, APPEND_INO); |
597 | remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); | |
39d787be | 598 | remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); |
60dcedc9 | 599 | |
d6212a5f | 600 | sb_start_intwrite(inode->i_sb); |
91942321 | 601 | set_inode_flag(inode, FI_NO_ALLOC); |
19f99cee | 602 | i_size_write(inode, 0); |
4c0c2949 | 603 | retry: |
19f99cee | 604 | if (F2FS_HAS_BLOCKS(inode)) |
9a449e9c | 605 | err = f2fs_truncate(inode); |
19f99cee | 606 | |
8c1b3c0f JK |
607 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
608 | if (time_to_inject(sbi, FAULT_EVICT_INODE)) { | |
609 | f2fs_show_injection_info(FAULT_EVICT_INODE); | |
610 | err = -EIO; | |
611 | } | |
612 | #endif | |
13ec7297 CY |
613 | if (!err) { |
614 | f2fs_lock_op(sbi); | |
615 | err = remove_inode_page(inode); | |
616 | f2fs_unlock_op(sbi); | |
a11b9f65 CY |
617 | if (err == -ENOENT) |
618 | err = 0; | |
13ec7297 | 619 | } |
39936837 | 620 | |
4c0c2949 JK |
621 | /* give more chances, if ENOMEM case */ |
622 | if (err == -ENOMEM) { | |
623 | err = 0; | |
624 | goto retry; | |
625 | } | |
626 | ||
0f18b462 JK |
627 | if (err) |
628 | update_inode_page(inode); | |
0abd675e | 629 | dquot_free_inode(inode); |
d6212a5f | 630 | sb_end_intwrite(inode->i_sb); |
19f99cee | 631 | no_delete: |
0abd675e CY |
632 | dquot_drop(inode); |
633 | ||
d5e8f6c9 | 634 | stat_dec_inline_xattr(inode); |
3289c061 | 635 | stat_dec_inline_dir(inode); |
e7a2bf22 | 636 | stat_dec_inline_inode(inode); |
0bdee482 | 637 | |
943973cd | 638 | if (likely(!is_set_ckpt_flags(sbi, CP_ERROR_FLAG))) |
ca7d802a | 639 | f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); |
943973cd JK |
640 | else |
641 | f2fs_inode_synced(inode); | |
ca7d802a | 642 | |
4f295443 JK |
643 | /* ino == 0, if f2fs_new_inode() was failed t*/ |
644 | if (inode->i_ino) | |
645 | invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, | |
646 | inode->i_ino); | |
002a41ca CY |
647 | if (xnid) |
648 | invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); | |
60dcedc9 CY |
649 | if (inode->i_nlink) { |
650 | if (is_inode_flag_set(inode, FI_APPEND_WRITE)) | |
651 | add_ino_entry(sbi, inode->i_ino, APPEND_INO); | |
652 | if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) | |
653 | add_ino_entry(sbi, inode->i_ino, UPDATE_INO); | |
654 | } | |
91942321 | 655 | if (is_inode_flag_set(inode, FI_FREE_NID)) { |
221149c0 | 656 | alloc_nid_failed(sbi, inode->i_ino); |
91942321 | 657 | clear_inode_flag(inode, FI_FREE_NID); |
d8c4256c | 658 | } else { |
f9e4519f JK |
659 | /* |
660 | * If xattr nid is corrupted, we can reach out error condition, | |
661 | * err & !exist_written_data(sbi, inode->i_ino, ORPHAN_INO)). | |
662 | * In that case, check_nid_range() is enough to give a clue. | |
663 | */ | |
c9b63bd0 | 664 | } |
dbf20cb2 | 665 | out_clear: |
0b81d077 | 666 | fscrypt_put_encryption_info(inode, NULL); |
dbf20cb2 | 667 | clear_inode(inode); |
19f99cee | 668 | } |
44c16156 JK |
669 | |
670 | /* caller should call f2fs_lock_op() */ | |
671 | void handle_failed_inode(struct inode *inode) | |
672 | { | |
673 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
221149c0 | 674 | struct node_info ni; |
44c16156 | 675 | |
a11b9f65 CY |
676 | /* |
677 | * clear nlink of inode in order to release resource of inode | |
678 | * immediately. | |
679 | */ | |
680 | clear_nlink(inode); | |
681 | ||
682 | /* | |
683 | * we must call this to avoid inode being remained as dirty, resulting | |
684 | * in a panic when flushing dirty inodes in gdirty_list. | |
685 | */ | |
686 | update_inode_page(inode); | |
9bb02c36 | 687 | f2fs_inode_synced(inode); |
a11b9f65 | 688 | |
221149c0 | 689 | /* don't make bad inode, since it becomes a regular file. */ |
44c16156 JK |
690 | unlock_new_inode(inode); |
691 | ||
13ec7297 | 692 | /* |
13ec7297 CY |
693 | * Note: we should add inode to orphan list before f2fs_unlock_op() |
694 | * so we can prevent losing this orphan when encoutering checkpoint | |
695 | * and following suddenly power-off. | |
696 | */ | |
221149c0 JK |
697 | get_node_info(sbi, inode->i_ino, &ni); |
698 | ||
699 | if (ni.blk_addr != NULL_ADDR) { | |
700 | int err = acquire_orphan_inode(sbi); | |
701 | if (err) { | |
702 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
703 | f2fs_msg(sbi->sb, KERN_WARNING, | |
704 | "Too many orphan inodes, run fsck to fix."); | |
705 | } else { | |
67c3758d | 706 | add_orphan_inode(inode); |
221149c0 JK |
707 | } |
708 | alloc_nid_done(sbi, inode->i_ino); | |
709 | } else { | |
91942321 | 710 | set_inode_flag(inode, FI_FREE_NID); |
13ec7297 | 711 | } |
44c16156 | 712 | |
44c16156 JK |
713 | f2fs_unlock_op(sbi); |
714 | ||
715 | /* iput will drop the inode object */ | |
716 | iput(inode); | |
717 | } |