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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 | ||
3c6c2beb JK |
68 | static bool __written_first_block(struct f2fs_inode *ri) |
69 | { | |
7a2af766 | 70 | block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]); |
adad81ed JK |
71 | |
72 | if (addr != NEW_ADDR && addr != NULL_ADDR) | |
3c6c2beb JK |
73 | return true; |
74 | return false; | |
75 | } | |
76 | ||
3d1e3807 JK |
77 | static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri) |
78 | { | |
7a2af766 CY |
79 | int extra_size = get_extra_isize(inode); |
80 | ||
3d1e3807 JK |
81 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { |
82 | if (old_valid_dev(inode->i_rdev)) { | |
7a2af766 | 83 | ri->i_addr[extra_size] = |
6c311ec6 | 84 | cpu_to_le32(old_encode_dev(inode->i_rdev)); |
7a2af766 | 85 | ri->i_addr[extra_size + 1] = 0; |
3d1e3807 | 86 | } else { |
7a2af766 CY |
87 | ri->i_addr[extra_size] = 0; |
88 | ri->i_addr[extra_size + 1] = | |
6c311ec6 | 89 | cpu_to_le32(new_encode_dev(inode->i_rdev)); |
7a2af766 | 90 | ri->i_addr[extra_size + 2] = 0; |
3d1e3807 JK |
91 | } |
92 | } | |
93 | } | |
94 | ||
9e5ba77f | 95 | static void __recover_inline_status(struct inode *inode, struct page *ipage) |
b3d208f9 | 96 | { |
f2470371 | 97 | void *inline_data = inline_data_addr(inode, ipage); |
9e5ba77f | 98 | __le32 *start = inline_data; |
f2470371 | 99 | __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32); |
b3d208f9 | 100 | |
9e5ba77f CY |
101 | while (start < end) { |
102 | if (*start++) { | |
fec1d657 | 103 | f2fs_wait_on_page_writeback(ipage, NODE, true); |
b3d208f9 | 104 | |
91942321 JK |
105 | set_inode_flag(inode, FI_DATA_EXIST); |
106 | set_raw_inline(inode, F2FS_INODE(ipage)); | |
9e5ba77f CY |
107 | set_page_dirty(ipage); |
108 | return; | |
109 | } | |
b3d208f9 | 110 | } |
9e5ba77f | 111 | return; |
b3d208f9 JK |
112 | } |
113 | ||
704956ec CY |
114 | static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) |
115 | { | |
116 | struct f2fs_inode *ri = &F2FS_NODE(page)->i; | |
117 | int extra_isize = le32_to_cpu(ri->i_extra_isize); | |
118 | ||
119 | if (!f2fs_sb_has_inode_chksum(sbi->sb)) | |
120 | return false; | |
121 | ||
122 | if (!RAW_IS_INODE(F2FS_NODE(page)) || !(ri->i_inline & F2FS_EXTRA_ATTR)) | |
123 | return false; | |
124 | ||
125 | if (!F2FS_FITS_IN_INODE(ri, extra_isize, i_inode_checksum)) | |
126 | return false; | |
127 | ||
128 | return true; | |
129 | } | |
130 | ||
131 | static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) | |
132 | { | |
133 | struct f2fs_node *node = F2FS_NODE(page); | |
134 | struct f2fs_inode *ri = &node->i; | |
135 | __le32 ino = node->footer.ino; | |
136 | __le32 gen = ri->i_generation; | |
137 | __u32 chksum, chksum_seed; | |
138 | __u32 dummy_cs = 0; | |
139 | unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum); | |
140 | unsigned int cs_size = sizeof(dummy_cs); | |
141 | ||
142 | chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino, | |
143 | sizeof(ino)); | |
144 | chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen)); | |
145 | ||
146 | chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset); | |
147 | chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size); | |
148 | offset += cs_size; | |
149 | chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset, | |
150 | F2FS_BLKSIZE - offset); | |
151 | return chksum; | |
152 | } | |
153 | ||
154 | bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page) | |
155 | { | |
156 | struct f2fs_inode *ri; | |
157 | __u32 provided, calculated; | |
158 | ||
ee605234 JK |
159 | if (!f2fs_enable_inode_chksum(sbi, page) || |
160 | PageDirty(page) || PageWriteback(page)) | |
704956ec CY |
161 | return true; |
162 | ||
163 | ri = &F2FS_NODE(page)->i; | |
164 | provided = le32_to_cpu(ri->i_inode_checksum); | |
165 | calculated = f2fs_inode_chksum(sbi, page); | |
166 | ||
167 | if (provided != calculated) | |
168 | f2fs_msg(sbi->sb, KERN_WARNING, | |
169 | "checksum invalid, ino = %x, %x vs. %x", | |
170 | ino_of_node(page), provided, calculated); | |
171 | ||
172 | return provided == calculated; | |
173 | } | |
174 | ||
175 | void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page) | |
176 | { | |
177 | struct f2fs_inode *ri = &F2FS_NODE(page)->i; | |
178 | ||
179 | if (!f2fs_enable_inode_chksum(sbi, page)) | |
180 | return; | |
181 | ||
182 | ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page)); | |
183 | } | |
184 | ||
9f0e83c9 JK |
185 | static bool sanity_check_inode(struct inode *inode) |
186 | { | |
187 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
188 | ||
189 | if (f2fs_sb_has_flexible_inline_xattr(sbi->sb) | |
190 | && !f2fs_has_extra_attr(inode)) { | |
191 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
192 | f2fs_msg(sbi->sb, KERN_WARNING, | |
193 | "%s: corrupted inode ino=%lx, run fsck to fix.", | |
194 | __func__, inode->i_ino); | |
195 | return false; | |
196 | } | |
197 | return true; | |
198 | } | |
199 | ||
19f99cee JK |
200 | static int do_read_inode(struct inode *inode) |
201 | { | |
4081363f | 202 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
19f99cee JK |
203 | struct f2fs_inode_info *fi = F2FS_I(inode); |
204 | struct page *node_page; | |
19f99cee | 205 | struct f2fs_inode *ri; |
5c57132e | 206 | projid_t i_projid; |
19f99cee JK |
207 | |
208 | /* Check if ino is within scope */ | |
f9e4519f | 209 | if (check_nid_range(sbi, inode->i_ino)) |
064e0823 | 210 | return -EINVAL; |
19f99cee JK |
211 | |
212 | node_page = get_node_page(sbi, inode->i_ino); | |
213 | if (IS_ERR(node_page)) | |
214 | return PTR_ERR(node_page); | |
215 | ||
58bfaf44 | 216 | ri = F2FS_INODE(node_page); |
19f99cee JK |
217 | |
218 | inode->i_mode = le16_to_cpu(ri->i_mode); | |
219 | i_uid_write(inode, le32_to_cpu(ri->i_uid)); | |
220 | i_gid_write(inode, le32_to_cpu(ri->i_gid)); | |
221 | set_nlink(inode, le32_to_cpu(ri->i_links)); | |
222 | inode->i_size = le64_to_cpu(ri->i_size); | |
000519f2 | 223 | inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); |
19f99cee JK |
224 | |
225 | inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); | |
226 | inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); | |
227 | inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); | |
228 | inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); | |
229 | inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); | |
230 | inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); | |
231 | inode->i_generation = le32_to_cpu(ri->i_generation); | |
232 | ||
233 | fi->i_current_depth = le32_to_cpu(ri->i_current_depth); | |
234 | fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); | |
235 | fi->i_flags = le32_to_cpu(ri->i_flags); | |
236 | fi->flags = 0; | |
19f99cee | 237 | fi->i_advise = ri->i_advise; |
6666e6aa | 238 | fi->i_pino = le32_to_cpu(ri->i_pino); |
38431545 | 239 | fi->i_dir_level = ri->i_dir_level; |
3d1e3807 | 240 | |
ed3d1256 JK |
241 | if (f2fs_init_extent_tree(inode, &ri->i_ext)) |
242 | set_page_dirty(node_page); | |
0c872e2d | 243 | |
91942321 | 244 | get_inline_info(inode, ri); |
3d1e3807 | 245 | |
7a2af766 CY |
246 | fi->i_extra_isize = f2fs_has_extra_attr(inode) ? |
247 | le16_to_cpu(ri->i_extra_isize) : 0; | |
248 | ||
6afc662e | 249 | if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) { |
6afc662e CY |
250 | fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); |
251 | } else if (f2fs_has_inline_xattr(inode) || | |
252 | f2fs_has_inline_dentry(inode)) { | |
253 | fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; | |
254 | } else { | |
255 | ||
256 | /* | |
257 | * Previous inline data or directory always reserved 200 bytes | |
258 | * in inode layout, even if inline_xattr is disabled. In order | |
259 | * to keep inline_dentry's structure for backward compatibility, | |
260 | * we get the space back only from inline_data. | |
261 | */ | |
262 | fi->i_inline_xattr_size = 0; | |
263 | } | |
264 | ||
b3d208f9 JK |
265 | /* check data exist */ |
266 | if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) | |
9e5ba77f | 267 | __recover_inline_status(inode, node_page); |
b3d208f9 | 268 | |
3d1e3807 JK |
269 | /* get rdev by using inline_info */ |
270 | __get_inode_rdev(inode, ri); | |
271 | ||
3c6c2beb | 272 | if (__written_first_block(ri)) |
91942321 | 273 | set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN); |
3c6c2beb | 274 | |
26de9b11 JK |
275 | if (!need_inode_block_update(sbi, inode->i_ino)) |
276 | fi->last_disk_size = inode->i_size; | |
277 | ||
5c57132e CY |
278 | if (fi->i_flags & FS_PROJINHERIT_FL) |
279 | set_inode_flag(inode, FI_PROJ_INHERIT); | |
280 | ||
281 | if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi->sb) && | |
282 | F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) | |
283 | i_projid = (projid_t)le32_to_cpu(ri->i_projid); | |
284 | else | |
285 | i_projid = F2FS_DEF_PROJID; | |
286 | fi->i_projid = make_kprojid(&init_user_ns, i_projid); | |
287 | ||
19f99cee | 288 | f2fs_put_page(node_page, 1); |
9d1015dd | 289 | |
d5e8f6c9 | 290 | stat_inc_inline_xattr(inode); |
9d1015dd JK |
291 | stat_inc_inline_inode(inode); |
292 | stat_inc_inline_dir(inode); | |
293 | ||
9e5ba77f | 294 | return 0; |
19f99cee JK |
295 | } |
296 | ||
297 | struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) | |
298 | { | |
299 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
300 | struct inode *inode; | |
a2a4a7e4 | 301 | int ret = 0; |
19f99cee JK |
302 | |
303 | inode = iget_locked(sb, ino); | |
304 | if (!inode) | |
305 | return ERR_PTR(-ENOMEM); | |
a2a4a7e4 NJ |
306 | |
307 | if (!(inode->i_state & I_NEW)) { | |
308 | trace_f2fs_iget(inode); | |
19f99cee | 309 | return inode; |
a2a4a7e4 | 310 | } |
19f99cee JK |
311 | if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi)) |
312 | goto make_now; | |
313 | ||
314 | ret = do_read_inode(inode); | |
315 | if (ret) | |
316 | goto bad_inode; | |
9f0e83c9 JK |
317 | if (!sanity_check_inode(inode)) { |
318 | ret = -EINVAL; | |
319 | goto bad_inode; | |
320 | } | |
19f99cee JK |
321 | make_now: |
322 | if (ino == F2FS_NODE_INO(sbi)) { | |
323 | inode->i_mapping->a_ops = &f2fs_node_aops; | |
fb0053ba | 324 | mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); |
19f99cee JK |
325 | } else if (ino == F2FS_META_INO(sbi)) { |
326 | inode->i_mapping->a_ops = &f2fs_meta_aops; | |
fb0053ba | 327 | mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); |
19f99cee JK |
328 | } else if (S_ISREG(inode->i_mode)) { |
329 | inode->i_op = &f2fs_file_inode_operations; | |
330 | inode->i_fop = &f2fs_file_operations; | |
331 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
332 | } else if (S_ISDIR(inode->i_mode)) { | |
333 | inode->i_op = &f2fs_dir_inode_operations; | |
334 | inode->i_fop = &f2fs_dir_operations; | |
335 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
a78186eb | 336 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_HIGH_ZERO); |
19f99cee | 337 | } else if (S_ISLNK(inode->i_mode)) { |
cbaf042a JK |
338 | if (f2fs_encrypted_inode(inode)) |
339 | inode->i_op = &f2fs_encrypted_symlink_inode_operations; | |
340 | else | |
341 | inode->i_op = &f2fs_symlink_inode_operations; | |
21fc61c7 | 342 | inode_nohighmem(inode); |
19f99cee JK |
343 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
344 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || | |
345 | S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
346 | inode->i_op = &f2fs_special_inode_operations; | |
347 | init_special_inode(inode, inode->i_mode, inode->i_rdev); | |
348 | } else { | |
349 | ret = -EIO; | |
350 | goto bad_inode; | |
351 | } | |
93607124 | 352 | f2fs_set_inode_flags(inode); |
19f99cee | 353 | unlock_new_inode(inode); |
a2a4a7e4 | 354 | trace_f2fs_iget(inode); |
19f99cee JK |
355 | return inode; |
356 | ||
357 | bad_inode: | |
358 | iget_failed(inode); | |
a2a4a7e4 | 359 | trace_f2fs_iget_exit(inode, ret); |
19f99cee JK |
360 | return ERR_PTR(ret); |
361 | } | |
362 | ||
e8ea9b3d JK |
363 | struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) |
364 | { | |
365 | struct inode *inode; | |
366 | retry: | |
367 | inode = f2fs_iget(sb, ino); | |
368 | if (IS_ERR(inode)) { | |
369 | if (PTR_ERR(inode) == -ENOMEM) { | |
370 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
371 | goto retry; | |
372 | } | |
373 | } | |
374 | return inode; | |
375 | } | |
376 | ||
12719ae1 | 377 | int update_inode(struct inode *inode, struct page *node_page) |
19f99cee | 378 | { |
19f99cee | 379 | struct f2fs_inode *ri; |
b691d98f | 380 | struct extent_tree *et = F2FS_I(inode)->extent_tree; |
19f99cee | 381 | |
1e7c48fa JK |
382 | f2fs_inode_synced(inode); |
383 | ||
fec1d657 | 384 | f2fs_wait_on_page_writeback(node_page, NODE, true); |
19f99cee | 385 | |
58bfaf44 | 386 | ri = F2FS_INODE(node_page); |
19f99cee JK |
387 | |
388 | ri->i_mode = cpu_to_le16(inode->i_mode); | |
389 | ri->i_advise = F2FS_I(inode)->i_advise; | |
390 | ri->i_uid = cpu_to_le32(i_uid_read(inode)); | |
391 | ri->i_gid = cpu_to_le32(i_gid_read(inode)); | |
392 | ri->i_links = cpu_to_le32(inode->i_nlink); | |
393 | ri->i_size = cpu_to_le64(i_size_read(inode)); | |
000519f2 | 394 | ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); |
0c872e2d | 395 | |
b691d98f CY |
396 | if (et) { |
397 | read_lock(&et->lock); | |
398 | set_raw_extent(&et->largest, &ri->i_ext); | |
399 | read_unlock(&et->lock); | |
400 | } else { | |
3e72f721 | 401 | memset(&ri->i_ext, 0, sizeof(ri->i_ext)); |
b691d98f | 402 | } |
91942321 | 403 | set_raw_inline(inode, ri); |
19f99cee JK |
404 | |
405 | ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); | |
406 | ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); | |
407 | ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); | |
408 | ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); | |
409 | ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); | |
410 | ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); | |
411 | ri->i_current_depth = cpu_to_le32(F2FS_I(inode)->i_current_depth); | |
412 | ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); | |
413 | ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); | |
6666e6aa | 414 | ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); |
19f99cee | 415 | ri->i_generation = cpu_to_le32(inode->i_generation); |
38431545 | 416 | ri->i_dir_level = F2FS_I(inode)->i_dir_level; |
7d79e75f | 417 | |
5c57132e | 418 | if (f2fs_has_extra_attr(inode)) { |
7a2af766 CY |
419 | ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); |
420 | ||
6afc662e CY |
421 | if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)->sb)) |
422 | ri->i_inline_xattr_size = | |
423 | cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size); | |
424 | ||
5c57132e CY |
425 | if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) && |
426 | F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, | |
427 | i_projid)) { | |
428 | projid_t i_projid; | |
429 | ||
430 | i_projid = from_kprojid(&init_user_ns, | |
431 | F2FS_I(inode)->i_projid); | |
432 | ri->i_projid = cpu_to_le32(i_projid); | |
433 | } | |
434 | } | |
435 | ||
3d1e3807 | 436 | __set_inode_rdev(inode, ri); |
398b1ac5 | 437 | set_cold_node(inode, node_page); |
12719ae1 | 438 | |
2049d4fc JK |
439 | /* deleted inode */ |
440 | if (inode->i_nlink == 0) | |
441 | clear_inline_node(node_page); | |
442 | ||
12719ae1 | 443 | return set_page_dirty(node_page); |
19f99cee JK |
444 | } |
445 | ||
12719ae1 | 446 | int update_inode_page(struct inode *inode) |
19f99cee | 447 | { |
4081363f | 448 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
19f99cee | 449 | struct page *node_page; |
12719ae1 | 450 | int ret = 0; |
744602cf | 451 | retry: |
19f99cee | 452 | node_page = get_node_page(sbi, inode->i_ino); |
744602cf JK |
453 | if (IS_ERR(node_page)) { |
454 | int err = PTR_ERR(node_page); | |
455 | if (err == -ENOMEM) { | |
456 | cond_resched(); | |
457 | goto retry; | |
458 | } else if (err != -ENOENT) { | |
38f91ca8 | 459 | f2fs_stop_checkpoint(sbi, false); |
744602cf | 460 | } |
12719ae1 | 461 | return 0; |
744602cf | 462 | } |
12719ae1 | 463 | ret = update_inode(inode, node_page); |
19f99cee | 464 | f2fs_put_page(node_page, 1); |
12719ae1 | 465 | return ret; |
19f99cee JK |
466 | } |
467 | ||
39936837 JK |
468 | int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) |
469 | { | |
4081363f | 470 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
39936837 JK |
471 | |
472 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
473 | inode->i_ino == F2FS_META_INO(sbi)) | |
474 | return 0; | |
475 | ||
91942321 | 476 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) |
b3783873 JK |
477 | return 0; |
478 | ||
39936837 | 479 | /* |
c5cd29d2 | 480 | * We need to balance fs here to prevent from producing dirty node pages |
39936837 JK |
481 | * during the urgent cleaning time when runing out of free sections. |
482 | */ | |
a7881893 JK |
483 | update_inode_page(inode); |
484 | if (wbc && wbc->nr_to_write) | |
2c4db1a6 | 485 | f2fs_balance_fs(sbi, true); |
744602cf | 486 | return 0; |
39936837 JK |
487 | } |
488 | ||
0a8165d7 | 489 | /* |
19f99cee JK |
490 | * Called at the last iput() if i_nlink is zero |
491 | */ | |
492 | void f2fs_evict_inode(struct inode *inode) | |
493 | { | |
4081363f | 494 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
91942321 | 495 | nid_t xnid = F2FS_I(inode)->i_xattr_nid; |
13ec7297 | 496 | int err = 0; |
19f99cee | 497 | |
88b88a66 | 498 | /* some remained atomic pages should discarded */ |
1e84371f | 499 | if (f2fs_is_atomic_file(inode)) |
29b96b54 | 500 | drop_inmem_pages(inode); |
88b88a66 | 501 | |
a2a4a7e4 | 502 | trace_f2fs_evict_inode(inode); |
91b0abe3 | 503 | truncate_inode_pages_final(&inode->i_data); |
19f99cee JK |
504 | |
505 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
506 | inode->i_ino == F2FS_META_INO(sbi)) | |
dbf20cb2 | 507 | goto out_clear; |
19f99cee | 508 | |
a7ffdbe2 | 509 | f2fs_bug_on(sbi, get_dirty_pages(inode)); |
c227f912 | 510 | remove_dirty_inode(inode); |
19f99cee | 511 | |
3e72f721 JK |
512 | f2fs_destroy_extent_tree(inode); |
513 | ||
19f99cee JK |
514 | if (inode->i_nlink || is_bad_inode(inode)) |
515 | goto no_delete; | |
516 | ||
0abd675e CY |
517 | dquot_initialize(inode); |
518 | ||
60dcedc9 CY |
519 | remove_ino_entry(sbi, inode->i_ino, APPEND_INO); |
520 | remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); | |
39d787be | 521 | remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); |
60dcedc9 | 522 | |
d6212a5f | 523 | sb_start_intwrite(inode->i_sb); |
91942321 | 524 | set_inode_flag(inode, FI_NO_ALLOC); |
19f99cee | 525 | i_size_write(inode, 0); |
4c0c2949 | 526 | retry: |
19f99cee | 527 | if (F2FS_HAS_BLOCKS(inode)) |
9a449e9c | 528 | err = f2fs_truncate(inode); |
19f99cee | 529 | |
8c1b3c0f JK |
530 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
531 | if (time_to_inject(sbi, FAULT_EVICT_INODE)) { | |
532 | f2fs_show_injection_info(FAULT_EVICT_INODE); | |
533 | err = -EIO; | |
534 | } | |
535 | #endif | |
13ec7297 CY |
536 | if (!err) { |
537 | f2fs_lock_op(sbi); | |
538 | err = remove_inode_page(inode); | |
539 | f2fs_unlock_op(sbi); | |
a11b9f65 CY |
540 | if (err == -ENOENT) |
541 | err = 0; | |
13ec7297 | 542 | } |
39936837 | 543 | |
4c0c2949 JK |
544 | /* give more chances, if ENOMEM case */ |
545 | if (err == -ENOMEM) { | |
546 | err = 0; | |
547 | goto retry; | |
548 | } | |
549 | ||
0f18b462 JK |
550 | if (err) |
551 | update_inode_page(inode); | |
0abd675e | 552 | dquot_free_inode(inode); |
d6212a5f | 553 | sb_end_intwrite(inode->i_sb); |
19f99cee | 554 | no_delete: |
0abd675e CY |
555 | dquot_drop(inode); |
556 | ||
d5e8f6c9 | 557 | stat_dec_inline_xattr(inode); |
3289c061 | 558 | stat_dec_inline_dir(inode); |
e7a2bf22 | 559 | stat_dec_inline_inode(inode); |
0bdee482 | 560 | |
943973cd | 561 | if (likely(!is_set_ckpt_flags(sbi, CP_ERROR_FLAG))) |
ca7d802a | 562 | f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); |
943973cd JK |
563 | else |
564 | f2fs_inode_synced(inode); | |
ca7d802a | 565 | |
4f295443 JK |
566 | /* ino == 0, if f2fs_new_inode() was failed t*/ |
567 | if (inode->i_ino) | |
568 | invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, | |
569 | inode->i_ino); | |
002a41ca CY |
570 | if (xnid) |
571 | invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); | |
60dcedc9 CY |
572 | if (inode->i_nlink) { |
573 | if (is_inode_flag_set(inode, FI_APPEND_WRITE)) | |
574 | add_ino_entry(sbi, inode->i_ino, APPEND_INO); | |
575 | if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) | |
576 | add_ino_entry(sbi, inode->i_ino, UPDATE_INO); | |
577 | } | |
91942321 | 578 | if (is_inode_flag_set(inode, FI_FREE_NID)) { |
221149c0 | 579 | alloc_nid_failed(sbi, inode->i_ino); |
91942321 | 580 | clear_inode_flag(inode, FI_FREE_NID); |
d8c4256c | 581 | } else { |
f9e4519f JK |
582 | /* |
583 | * If xattr nid is corrupted, we can reach out error condition, | |
584 | * err & !exist_written_data(sbi, inode->i_ino, ORPHAN_INO)). | |
585 | * In that case, check_nid_range() is enough to give a clue. | |
586 | */ | |
c9b63bd0 | 587 | } |
dbf20cb2 | 588 | out_clear: |
0b81d077 | 589 | fscrypt_put_encryption_info(inode, NULL); |
dbf20cb2 | 590 | clear_inode(inode); |
19f99cee | 591 | } |
44c16156 JK |
592 | |
593 | /* caller should call f2fs_lock_op() */ | |
594 | void handle_failed_inode(struct inode *inode) | |
595 | { | |
596 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
221149c0 | 597 | struct node_info ni; |
44c16156 | 598 | |
a11b9f65 CY |
599 | /* |
600 | * clear nlink of inode in order to release resource of inode | |
601 | * immediately. | |
602 | */ | |
603 | clear_nlink(inode); | |
604 | ||
605 | /* | |
606 | * we must call this to avoid inode being remained as dirty, resulting | |
607 | * in a panic when flushing dirty inodes in gdirty_list. | |
608 | */ | |
609 | update_inode_page(inode); | |
9bb02c36 | 610 | f2fs_inode_synced(inode); |
a11b9f65 | 611 | |
221149c0 | 612 | /* don't make bad inode, since it becomes a regular file. */ |
44c16156 JK |
613 | unlock_new_inode(inode); |
614 | ||
13ec7297 | 615 | /* |
13ec7297 CY |
616 | * Note: we should add inode to orphan list before f2fs_unlock_op() |
617 | * so we can prevent losing this orphan when encoutering checkpoint | |
618 | * and following suddenly power-off. | |
619 | */ | |
221149c0 JK |
620 | get_node_info(sbi, inode->i_ino, &ni); |
621 | ||
622 | if (ni.blk_addr != NULL_ADDR) { | |
623 | int err = acquire_orphan_inode(sbi); | |
624 | if (err) { | |
625 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
626 | f2fs_msg(sbi->sb, KERN_WARNING, | |
627 | "Too many orphan inodes, run fsck to fix."); | |
628 | } else { | |
67c3758d | 629 | add_orphan_inode(inode); |
221149c0 JK |
630 | } |
631 | alloc_nid_done(sbi, inode->i_ino); | |
632 | } else { | |
91942321 | 633 | set_inode_flag(inode, FI_FREE_NID); |
13ec7297 | 634 | } |
44c16156 | 635 | |
44c16156 JK |
636 | f2fs_unlock_op(sbi); |
637 | ||
638 | /* iput will drop the inode object */ | |
639 | iput(inode); | |
640 | } |