Commit | Line | Data |
---|---|---|
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 | { |
9ac1e2d8 DJ |
25 | if (is_inode_flag_set(inode, FI_NEW_INODE)) |
26 | return; | |
27 | ||
7c45729a | 28 | if (f2fs_inode_dirtied(inode, sync)) |
b56ab837 | 29 | return; |
7c45729a | 30 | |
b56ab837 JK |
31 | mark_inode_dirty_sync(inode); |
32 | } | |
33 | ||
19f99cee JK |
34 | void f2fs_set_inode_flags(struct inode *inode) |
35 | { | |
36 | unsigned int flags = F2FS_I(inode)->i_flags; | |
8abfb36a | 37 | unsigned int new_fl = 0; |
19f99cee | 38 | |
59c84408 | 39 | if (flags & F2FS_SYNC_FL) |
8abfb36a | 40 | new_fl |= S_SYNC; |
59c84408 | 41 | if (flags & F2FS_APPEND_FL) |
8abfb36a | 42 | new_fl |= S_APPEND; |
59c84408 | 43 | if (flags & F2FS_IMMUTABLE_FL) |
8abfb36a | 44 | new_fl |= S_IMMUTABLE; |
59c84408 | 45 | if (flags & F2FS_NOATIME_FL) |
8abfb36a | 46 | new_fl |= S_NOATIME; |
59c84408 | 47 | if (flags & F2FS_DIRSYNC_FL) |
8abfb36a | 48 | new_fl |= S_DIRSYNC; |
2ee6a576 EB |
49 | if (f2fs_encrypted_inode(inode)) |
50 | new_fl |= S_ENCRYPTED; | |
6a678857 | 51 | inode_set_flags(inode, new_fl, |
2ee6a576 EB |
52 | S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC| |
53 | S_ENCRYPTED); | |
19f99cee JK |
54 | } |
55 | ||
3d1e3807 JK |
56 | static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri) |
57 | { | |
7a2af766 CY |
58 | int extra_size = get_extra_isize(inode); |
59 | ||
3d1e3807 JK |
60 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || |
61 | S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
7a2af766 CY |
62 | if (ri->i_addr[extra_size]) |
63 | inode->i_rdev = old_decode_dev( | |
64 | le32_to_cpu(ri->i_addr[extra_size])); | |
3d1e3807 | 65 | else |
7a2af766 CY |
66 | inode->i_rdev = new_decode_dev( |
67 | le32_to_cpu(ri->i_addr[extra_size + 1])); | |
3d1e3807 JK |
68 | } |
69 | } | |
70 | ||
e1da7872 CY |
71 | static bool __written_first_block(struct f2fs_sb_info *sbi, |
72 | struct f2fs_inode *ri) | |
3c6c2beb | 73 | { |
7a2af766 | 74 | block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]); |
adad81ed | 75 | |
e1da7872 | 76 | if (is_valid_data_blkaddr(sbi, addr)) |
3c6c2beb JK |
77 | return true; |
78 | return false; | |
79 | } | |
80 | ||
3d1e3807 JK |
81 | static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri) |
82 | { | |
7a2af766 CY |
83 | int extra_size = get_extra_isize(inode); |
84 | ||
3d1e3807 JK |
85 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { |
86 | if (old_valid_dev(inode->i_rdev)) { | |
7a2af766 | 87 | ri->i_addr[extra_size] = |
6c311ec6 | 88 | cpu_to_le32(old_encode_dev(inode->i_rdev)); |
7a2af766 | 89 | ri->i_addr[extra_size + 1] = 0; |
3d1e3807 | 90 | } else { |
7a2af766 CY |
91 | ri->i_addr[extra_size] = 0; |
92 | ri->i_addr[extra_size + 1] = | |
6c311ec6 | 93 | cpu_to_le32(new_encode_dev(inode->i_rdev)); |
7a2af766 | 94 | ri->i_addr[extra_size + 2] = 0; |
3d1e3807 JK |
95 | } |
96 | } | |
97 | } | |
98 | ||
9e5ba77f | 99 | static void __recover_inline_status(struct inode *inode, struct page *ipage) |
b3d208f9 | 100 | { |
f2470371 | 101 | void *inline_data = inline_data_addr(inode, ipage); |
9e5ba77f | 102 | __le32 *start = inline_data; |
f2470371 | 103 | __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32); |
b3d208f9 | 104 | |
9e5ba77f CY |
105 | while (start < end) { |
106 | if (*start++) { | |
fec1d657 | 107 | f2fs_wait_on_page_writeback(ipage, NODE, true); |
b3d208f9 | 108 | |
91942321 JK |
109 | set_inode_flag(inode, FI_DATA_EXIST); |
110 | set_raw_inline(inode, F2FS_INODE(ipage)); | |
9e5ba77f CY |
111 | set_page_dirty(ipage); |
112 | return; | |
113 | } | |
b3d208f9 | 114 | } |
9e5ba77f | 115 | return; |
b3d208f9 JK |
116 | } |
117 | ||
704956ec CY |
118 | static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) |
119 | { | |
120 | struct f2fs_inode *ri = &F2FS_NODE(page)->i; | |
704956ec CY |
121 | |
122 | if (!f2fs_sb_has_inode_chksum(sbi->sb)) | |
123 | return false; | |
124 | ||
4c6b56c0 | 125 | if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR)) |
704956ec CY |
126 | return false; |
127 | ||
d6964949 ZZ |
128 | if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize), |
129 | i_inode_checksum)) | |
704956ec CY |
130 | return false; |
131 | ||
132 | return true; | |
133 | } | |
134 | ||
135 | static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) | |
136 | { | |
137 | struct f2fs_node *node = F2FS_NODE(page); | |
138 | struct f2fs_inode *ri = &node->i; | |
139 | __le32 ino = node->footer.ino; | |
140 | __le32 gen = ri->i_generation; | |
141 | __u32 chksum, chksum_seed; | |
142 | __u32 dummy_cs = 0; | |
143 | unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum); | |
144 | unsigned int cs_size = sizeof(dummy_cs); | |
145 | ||
146 | chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino, | |
147 | sizeof(ino)); | |
148 | chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen)); | |
149 | ||
150 | chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset); | |
151 | chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size); | |
152 | offset += cs_size; | |
153 | chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset, | |
154 | F2FS_BLKSIZE - offset); | |
155 | return chksum; | |
156 | } | |
157 | ||
158 | bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page) | |
159 | { | |
160 | struct f2fs_inode *ri; | |
161 | __u32 provided, calculated; | |
162 | ||
83a3bfdb JK |
163 | if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN))) |
164 | return true; | |
165 | ||
54c55c4e WG |
166 | #ifdef CONFIG_F2FS_CHECK_FS |
167 | if (!f2fs_enable_inode_chksum(sbi, page)) | |
168 | #else | |
ee605234 JK |
169 | if (!f2fs_enable_inode_chksum(sbi, page) || |
170 | PageDirty(page) || PageWriteback(page)) | |
54c55c4e | 171 | #endif |
704956ec CY |
172 | return true; |
173 | ||
174 | ri = &F2FS_NODE(page)->i; | |
175 | provided = le32_to_cpu(ri->i_inode_checksum); | |
176 | calculated = f2fs_inode_chksum(sbi, page); | |
177 | ||
178 | if (provided != calculated) | |
179 | f2fs_msg(sbi->sb, KERN_WARNING, | |
180 | "checksum invalid, ino = %x, %x vs. %x", | |
181 | ino_of_node(page), provided, calculated); | |
182 | ||
183 | return provided == calculated; | |
184 | } | |
185 | ||
186 | void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page) | |
187 | { | |
188 | struct f2fs_inode *ri = &F2FS_NODE(page)->i; | |
189 | ||
190 | if (!f2fs_enable_inode_chksum(sbi, page)) | |
191 | return; | |
192 | ||
193 | ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page)); | |
194 | } | |
195 | ||
e34438c9 | 196 | static bool sanity_check_inode(struct inode *inode, struct page *node_page) |
5d64600d JK |
197 | { |
198 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
18dd6470 | 199 | struct f2fs_inode_info *fi = F2FS_I(inode); |
e34438c9 CY |
200 | unsigned long long iblocks; |
201 | ||
202 | iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks); | |
203 | if (!iblocks) { | |
204 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
205 | f2fs_msg(sbi->sb, KERN_WARNING, | |
206 | "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, " | |
207 | "run fsck to fix.", | |
208 | __func__, inode->i_ino, iblocks); | |
209 | return false; | |
210 | } | |
211 | ||
212 | if (ino_of_node(node_page) != nid_of_node(node_page)) { | |
213 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
214 | f2fs_msg(sbi->sb, KERN_WARNING, | |
215 | "%s: corrupted inode footer i_ino=%lx, ino,nid: " | |
216 | "[%u, %u] run fsck to fix.", | |
217 | __func__, inode->i_ino, | |
218 | ino_of_node(node_page), nid_of_node(node_page)); | |
219 | return false; | |
220 | } | |
5d64600d JK |
221 | |
222 | if (f2fs_sb_has_flexible_inline_xattr(sbi->sb) | |
223 | && !f2fs_has_extra_attr(inode)) { | |
224 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
225 | f2fs_msg(sbi->sb, KERN_WARNING, | |
226 | "%s: corrupted inode ino=%lx, run fsck to fix.", | |
227 | __func__, inode->i_ino); | |
228 | return false; | |
229 | } | |
76d56d4a CY |
230 | |
231 | if (f2fs_has_extra_attr(inode) && | |
232 | !f2fs_sb_has_extra_attr(sbi->sb)) { | |
233 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
234 | f2fs_msg(sbi->sb, KERN_WARNING, | |
235 | "%s: inode (ino=%lx) is with extra_attr, " | |
236 | "but extra_attr feature is off", | |
237 | __func__, inode->i_ino); | |
238 | return false; | |
239 | } | |
c9b60788 | 240 | |
18dd6470 CY |
241 | if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE || |
242 | fi->i_extra_isize % sizeof(__le32)) { | |
243 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
244 | f2fs_msg(sbi->sb, KERN_WARNING, | |
245 | "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, " | |
246 | "max: %zu", | |
247 | __func__, inode->i_ino, fi->i_extra_isize, | |
248 | F2FS_TOTAL_EXTRA_ATTR_SIZE); | |
249 | return false; | |
250 | } | |
251 | ||
c9b60788 CY |
252 | if (F2FS_I(inode)->extent_tree) { |
253 | struct extent_info *ei = &F2FS_I(inode)->extent_tree->largest; | |
254 | ||
255 | if (ei->len && | |
256 | (!f2fs_is_valid_blkaddr(sbi, ei->blk, DATA_GENERIC) || | |
257 | !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1, | |
258 | DATA_GENERIC))) { | |
259 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
260 | f2fs_msg(sbi->sb, KERN_WARNING, | |
261 | "%s: inode (ino=%lx) extent info [%u, %u, %u] " | |
262 | "is incorrect, run fsck to fix", | |
263 | __func__, inode->i_ino, | |
264 | ei->blk, ei->fofs, ei->len); | |
265 | return false; | |
266 | } | |
267 | } | |
5d64600d JK |
268 | return true; |
269 | } | |
270 | ||
19f99cee JK |
271 | static int do_read_inode(struct inode *inode) |
272 | { | |
4081363f | 273 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
19f99cee JK |
274 | struct f2fs_inode_info *fi = F2FS_I(inode); |
275 | struct page *node_page; | |
19f99cee | 276 | struct f2fs_inode *ri; |
5c57132e | 277 | projid_t i_projid; |
19f99cee JK |
278 | |
279 | /* Check if ino is within scope */ | |
4d57b86d | 280 | if (f2fs_check_nid_range(sbi, inode->i_ino)) |
064e0823 | 281 | return -EINVAL; |
19f99cee | 282 | |
4d57b86d | 283 | node_page = f2fs_get_node_page(sbi, inode->i_ino); |
19f99cee JK |
284 | if (IS_ERR(node_page)) |
285 | return PTR_ERR(node_page); | |
286 | ||
58bfaf44 | 287 | ri = F2FS_INODE(node_page); |
19f99cee JK |
288 | |
289 | inode->i_mode = le16_to_cpu(ri->i_mode); | |
290 | i_uid_write(inode, le32_to_cpu(ri->i_uid)); | |
291 | i_gid_write(inode, le32_to_cpu(ri->i_gid)); | |
292 | set_nlink(inode, le32_to_cpu(ri->i_links)); | |
293 | inode->i_size = le64_to_cpu(ri->i_size); | |
000519f2 | 294 | inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); |
19f99cee JK |
295 | |
296 | inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); | |
297 | inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); | |
298 | inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); | |
299 | inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); | |
300 | inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); | |
301 | inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); | |
302 | inode->i_generation = le32_to_cpu(ri->i_generation); | |
1c41e680 CY |
303 | if (S_ISDIR(inode->i_mode)) |
304 | fi->i_current_depth = le32_to_cpu(ri->i_current_depth); | |
305 | else if (S_ISREG(inode->i_mode)) | |
2ef79ecb CY |
306 | fi->i_gc_failures[GC_FAILURE_PIN] = |
307 | le16_to_cpu(ri->i_gc_failures); | |
19f99cee JK |
308 | fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); |
309 | fi->i_flags = le32_to_cpu(ri->i_flags); | |
310 | fi->flags = 0; | |
19f99cee | 311 | fi->i_advise = ri->i_advise; |
6666e6aa | 312 | fi->i_pino = le32_to_cpu(ri->i_pino); |
38431545 | 313 | fi->i_dir_level = ri->i_dir_level; |
3d1e3807 | 314 | |
ed3d1256 JK |
315 | if (f2fs_init_extent_tree(inode, &ri->i_ext)) |
316 | set_page_dirty(node_page); | |
0c872e2d | 317 | |
91942321 | 318 | get_inline_info(inode, ri); |
3d1e3807 | 319 | |
7a2af766 CY |
320 | fi->i_extra_isize = f2fs_has_extra_attr(inode) ? |
321 | le16_to_cpu(ri->i_extra_isize) : 0; | |
322 | ||
6afc662e | 323 | if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) { |
6afc662e CY |
324 | fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); |
325 | } else if (f2fs_has_inline_xattr(inode) || | |
326 | f2fs_has_inline_dentry(inode)) { | |
327 | fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; | |
328 | } else { | |
329 | ||
330 | /* | |
331 | * Previous inline data or directory always reserved 200 bytes | |
332 | * in inode layout, even if inline_xattr is disabled. In order | |
333 | * to keep inline_dentry's structure for backward compatibility, | |
334 | * we get the space back only from inline_data. | |
335 | */ | |
336 | fi->i_inline_xattr_size = 0; | |
337 | } | |
338 | ||
18dd6470 CY |
339 | if (!sanity_check_inode(inode, node_page)) { |
340 | f2fs_put_page(node_page, 1); | |
341 | return -EINVAL; | |
342 | } | |
343 | ||
b3d208f9 JK |
344 | /* check data exist */ |
345 | if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) | |
9e5ba77f | 346 | __recover_inline_status(inode, node_page); |
b3d208f9 | 347 | |
3d1e3807 JK |
348 | /* get rdev by using inline_info */ |
349 | __get_inode_rdev(inode, ri); | |
350 | ||
e1da7872 | 351 | if (__written_first_block(sbi, ri)) |
91942321 | 352 | set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN); |
3c6c2beb | 353 | |
4d57b86d | 354 | if (!f2fs_need_inode_block_update(sbi, inode->i_ino)) |
26de9b11 JK |
355 | fi->last_disk_size = inode->i_size; |
356 | ||
59c84408 | 357 | if (fi->i_flags & F2FS_PROJINHERIT_FL) |
5c57132e CY |
358 | set_inode_flag(inode, FI_PROJ_INHERIT); |
359 | ||
360 | if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi->sb) && | |
361 | F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) | |
362 | i_projid = (projid_t)le32_to_cpu(ri->i_projid); | |
363 | else | |
364 | i_projid = F2FS_DEF_PROJID; | |
365 | fi->i_projid = make_kprojid(&init_user_ns, i_projid); | |
366 | ||
1c1d35df CY |
367 | if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi->sb) && |
368 | F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { | |
369 | fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime); | |
370 | fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec); | |
371 | } | |
372 | ||
24b81dfc AB |
373 | F2FS_I(inode)->i_disk_time[0] = inode->i_atime; |
374 | F2FS_I(inode)->i_disk_time[1] = inode->i_ctime; | |
375 | F2FS_I(inode)->i_disk_time[2] = inode->i_mtime; | |
214c2461 | 376 | F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; |
19f99cee | 377 | f2fs_put_page(node_page, 1); |
9d1015dd | 378 | |
d5e8f6c9 | 379 | stat_inc_inline_xattr(inode); |
9d1015dd JK |
380 | stat_inc_inline_inode(inode); |
381 | stat_inc_inline_dir(inode); | |
382 | ||
9e5ba77f | 383 | return 0; |
19f99cee JK |
384 | } |
385 | ||
386 | struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) | |
387 | { | |
388 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
389 | struct inode *inode; | |
a2a4a7e4 | 390 | int ret = 0; |
19f99cee JK |
391 | |
392 | inode = iget_locked(sb, ino); | |
393 | if (!inode) | |
394 | return ERR_PTR(-ENOMEM); | |
a2a4a7e4 NJ |
395 | |
396 | if (!(inode->i_state & I_NEW)) { | |
397 | trace_f2fs_iget(inode); | |
19f99cee | 398 | return inode; |
a2a4a7e4 | 399 | } |
19f99cee JK |
400 | if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi)) |
401 | goto make_now; | |
402 | ||
403 | ret = do_read_inode(inode); | |
404 | if (ret) | |
405 | goto bad_inode; | |
19f99cee JK |
406 | make_now: |
407 | if (ino == F2FS_NODE_INO(sbi)) { | |
408 | inode->i_mapping->a_ops = &f2fs_node_aops; | |
81114baa | 409 | mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); |
19f99cee JK |
410 | } else if (ino == F2FS_META_INO(sbi)) { |
411 | inode->i_mapping->a_ops = &f2fs_meta_aops; | |
81114baa | 412 | mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); |
19f99cee JK |
413 | } else if (S_ISREG(inode->i_mode)) { |
414 | inode->i_op = &f2fs_file_inode_operations; | |
415 | inode->i_fop = &f2fs_file_operations; | |
416 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
417 | } else if (S_ISDIR(inode->i_mode)) { | |
418 | inode->i_op = &f2fs_dir_inode_operations; | |
419 | inode->i_fop = &f2fs_dir_operations; | |
420 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
bdbc90fa | 421 | inode_nohighmem(inode); |
19f99cee | 422 | } else if (S_ISLNK(inode->i_mode)) { |
cbaf042a JK |
423 | if (f2fs_encrypted_inode(inode)) |
424 | inode->i_op = &f2fs_encrypted_symlink_inode_operations; | |
425 | else | |
426 | inode->i_op = &f2fs_symlink_inode_operations; | |
21fc61c7 | 427 | inode_nohighmem(inode); |
19f99cee JK |
428 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
429 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || | |
430 | S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
431 | inode->i_op = &f2fs_special_inode_operations; | |
432 | init_special_inode(inode, inode->i_mode, inode->i_rdev); | |
433 | } else { | |
434 | ret = -EIO; | |
435 | goto bad_inode; | |
436 | } | |
93607124 | 437 | f2fs_set_inode_flags(inode); |
19f99cee | 438 | unlock_new_inode(inode); |
a2a4a7e4 | 439 | trace_f2fs_iget(inode); |
19f99cee JK |
440 | return inode; |
441 | ||
442 | bad_inode: | |
443 | iget_failed(inode); | |
a2a4a7e4 | 444 | trace_f2fs_iget_exit(inode, ret); |
19f99cee JK |
445 | return ERR_PTR(ret); |
446 | } | |
447 | ||
e8ea9b3d JK |
448 | struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) |
449 | { | |
450 | struct inode *inode; | |
451 | retry: | |
452 | inode = f2fs_iget(sb, ino); | |
453 | if (IS_ERR(inode)) { | |
454 | if (PTR_ERR(inode) == -ENOMEM) { | |
455 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
456 | goto retry; | |
457 | } | |
458 | } | |
459 | return inode; | |
460 | } | |
461 | ||
4d57b86d | 462 | void f2fs_update_inode(struct inode *inode, struct page *node_page) |
19f99cee | 463 | { |
19f99cee | 464 | struct f2fs_inode *ri; |
b691d98f | 465 | struct extent_tree *et = F2FS_I(inode)->extent_tree; |
19f99cee | 466 | |
fec1d657 | 467 | f2fs_wait_on_page_writeback(node_page, NODE, true); |
211a6fa0 YH |
468 | set_page_dirty(node_page); |
469 | ||
470 | f2fs_inode_synced(inode); | |
19f99cee | 471 | |
58bfaf44 | 472 | ri = F2FS_INODE(node_page); |
19f99cee JK |
473 | |
474 | ri->i_mode = cpu_to_le16(inode->i_mode); | |
475 | ri->i_advise = F2FS_I(inode)->i_advise; | |
476 | ri->i_uid = cpu_to_le32(i_uid_read(inode)); | |
477 | ri->i_gid = cpu_to_le32(i_gid_read(inode)); | |
478 | ri->i_links = cpu_to_le32(inode->i_nlink); | |
479 | ri->i_size = cpu_to_le64(i_size_read(inode)); | |
000519f2 | 480 | ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); |
0c872e2d | 481 | |
b691d98f CY |
482 | if (et) { |
483 | read_lock(&et->lock); | |
484 | set_raw_extent(&et->largest, &ri->i_ext); | |
485 | read_unlock(&et->lock); | |
486 | } else { | |
3e72f721 | 487 | memset(&ri->i_ext, 0, sizeof(ri->i_ext)); |
b691d98f | 488 | } |
91942321 | 489 | set_raw_inline(inode, ri); |
19f99cee JK |
490 | |
491 | ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); | |
492 | ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); | |
493 | ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); | |
494 | ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); | |
495 | ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); | |
496 | ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); | |
1c41e680 CY |
497 | if (S_ISDIR(inode->i_mode)) |
498 | ri->i_current_depth = | |
499 | cpu_to_le32(F2FS_I(inode)->i_current_depth); | |
500 | else if (S_ISREG(inode->i_mode)) | |
2ef79ecb CY |
501 | ri->i_gc_failures = |
502 | cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]); | |
19f99cee JK |
503 | ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); |
504 | ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); | |
6666e6aa | 505 | ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); |
19f99cee | 506 | ri->i_generation = cpu_to_le32(inode->i_generation); |
38431545 | 507 | ri->i_dir_level = F2FS_I(inode)->i_dir_level; |
7d79e75f | 508 | |
5c57132e | 509 | if (f2fs_has_extra_attr(inode)) { |
7a2af766 CY |
510 | ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); |
511 | ||
6afc662e CY |
512 | if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)->sb)) |
513 | ri->i_inline_xattr_size = | |
514 | cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size); | |
515 | ||
5c57132e CY |
516 | if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) && |
517 | F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, | |
518 | i_projid)) { | |
519 | projid_t i_projid; | |
520 | ||
521 | i_projid = from_kprojid(&init_user_ns, | |
522 | F2FS_I(inode)->i_projid); | |
523 | ri->i_projid = cpu_to_le32(i_projid); | |
524 | } | |
1c1d35df CY |
525 | |
526 | if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)->sb) && | |
527 | F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, | |
528 | i_crtime)) { | |
529 | ri->i_crtime = | |
530 | cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec); | |
531 | ri->i_crtime_nsec = | |
532 | cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec); | |
533 | } | |
5c57132e CY |
534 | } |
535 | ||
3d1e3807 | 536 | __set_inode_rdev(inode, ri); |
12719ae1 | 537 | |
2049d4fc JK |
538 | /* deleted inode */ |
539 | if (inode->i_nlink == 0) | |
540 | clear_inline_node(node_page); | |
541 | ||
24b81dfc AB |
542 | F2FS_I(inode)->i_disk_time[0] = inode->i_atime; |
543 | F2FS_I(inode)->i_disk_time[1] = inode->i_ctime; | |
544 | F2FS_I(inode)->i_disk_time[2] = inode->i_mtime; | |
214c2461 | 545 | F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; |
54c55c4e WG |
546 | |
547 | #ifdef CONFIG_F2FS_CHECK_FS | |
548 | f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page); | |
549 | #endif | |
19f99cee JK |
550 | } |
551 | ||
4d57b86d | 552 | void f2fs_update_inode_page(struct inode *inode) |
19f99cee | 553 | { |
4081363f | 554 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
19f99cee | 555 | struct page *node_page; |
744602cf | 556 | retry: |
4d57b86d | 557 | node_page = f2fs_get_node_page(sbi, inode->i_ino); |
744602cf JK |
558 | if (IS_ERR(node_page)) { |
559 | int err = PTR_ERR(node_page); | |
560 | if (err == -ENOMEM) { | |
561 | cond_resched(); | |
562 | goto retry; | |
563 | } else if (err != -ENOENT) { | |
38f91ca8 | 564 | f2fs_stop_checkpoint(sbi, false); |
744602cf | 565 | } |
211a6fa0 | 566 | return; |
744602cf | 567 | } |
4d57b86d | 568 | f2fs_update_inode(inode, node_page); |
19f99cee | 569 | f2fs_put_page(node_page, 1); |
19f99cee JK |
570 | } |
571 | ||
39936837 JK |
572 | int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) |
573 | { | |
4081363f | 574 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
39936837 JK |
575 | |
576 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
577 | inode->i_ino == F2FS_META_INO(sbi)) | |
578 | return 0; | |
579 | ||
91942321 | 580 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) |
b3783873 JK |
581 | return 0; |
582 | ||
39936837 | 583 | /* |
c5cd29d2 | 584 | * We need to balance fs here to prevent from producing dirty node pages |
39936837 JK |
585 | * during the urgent cleaning time when runing out of free sections. |
586 | */ | |
4d57b86d | 587 | f2fs_update_inode_page(inode); |
a7881893 | 588 | if (wbc && wbc->nr_to_write) |
2c4db1a6 | 589 | f2fs_balance_fs(sbi, true); |
744602cf | 590 | return 0; |
39936837 JK |
591 | } |
592 | ||
0a8165d7 | 593 | /* |
19f99cee JK |
594 | * Called at the last iput() if i_nlink is zero |
595 | */ | |
596 | void f2fs_evict_inode(struct inode *inode) | |
597 | { | |
4081363f | 598 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
91942321 | 599 | nid_t xnid = F2FS_I(inode)->i_xattr_nid; |
13ec7297 | 600 | int err = 0; |
19f99cee | 601 | |
88b88a66 | 602 | /* some remained atomic pages should discarded */ |
1e84371f | 603 | if (f2fs_is_atomic_file(inode)) |
4d57b86d | 604 | f2fs_drop_inmem_pages(inode); |
88b88a66 | 605 | |
a2a4a7e4 | 606 | trace_f2fs_evict_inode(inode); |
91b0abe3 | 607 | truncate_inode_pages_final(&inode->i_data); |
19f99cee JK |
608 | |
609 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
610 | inode->i_ino == F2FS_META_INO(sbi)) | |
dbf20cb2 | 611 | goto out_clear; |
19f99cee | 612 | |
a7ffdbe2 | 613 | f2fs_bug_on(sbi, get_dirty_pages(inode)); |
4d57b86d | 614 | f2fs_remove_dirty_inode(inode); |
19f99cee | 615 | |
3e72f721 JK |
616 | f2fs_destroy_extent_tree(inode); |
617 | ||
19f99cee JK |
618 | if (inode->i_nlink || is_bad_inode(inode)) |
619 | goto no_delete; | |
620 | ||
0abd675e CY |
621 | dquot_initialize(inode); |
622 | ||
4d57b86d CY |
623 | f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO); |
624 | f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); | |
625 | f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); | |
60dcedc9 | 626 | |
d6212a5f | 627 | sb_start_intwrite(inode->i_sb); |
91942321 | 628 | set_inode_flag(inode, FI_NO_ALLOC); |
19f99cee | 629 | i_size_write(inode, 0); |
4c0c2949 | 630 | retry: |
19f99cee | 631 | if (F2FS_HAS_BLOCKS(inode)) |
9a449e9c | 632 | err = f2fs_truncate(inode); |
19f99cee | 633 | |
8c1b3c0f JK |
634 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
635 | if (time_to_inject(sbi, FAULT_EVICT_INODE)) { | |
636 | f2fs_show_injection_info(FAULT_EVICT_INODE); | |
637 | err = -EIO; | |
638 | } | |
639 | #endif | |
13ec7297 CY |
640 | if (!err) { |
641 | f2fs_lock_op(sbi); | |
4d57b86d | 642 | err = f2fs_remove_inode_page(inode); |
13ec7297 | 643 | f2fs_unlock_op(sbi); |
a11b9f65 CY |
644 | if (err == -ENOENT) |
645 | err = 0; | |
13ec7297 | 646 | } |
39936837 | 647 | |
4c0c2949 JK |
648 | /* give more chances, if ENOMEM case */ |
649 | if (err == -ENOMEM) { | |
650 | err = 0; | |
651 | goto retry; | |
652 | } | |
653 | ||
0f18b462 | 654 | if (err) |
4d57b86d | 655 | f2fs_update_inode_page(inode); |
0abd675e | 656 | dquot_free_inode(inode); |
d6212a5f | 657 | sb_end_intwrite(inode->i_sb); |
19f99cee | 658 | no_delete: |
0abd675e CY |
659 | dquot_drop(inode); |
660 | ||
d5e8f6c9 | 661 | stat_dec_inline_xattr(inode); |
3289c061 | 662 | stat_dec_inline_dir(inode); |
e7a2bf22 | 663 | stat_dec_inline_inode(inode); |
0bdee482 | 664 | |
943973cd | 665 | if (likely(!is_set_ckpt_flags(sbi, CP_ERROR_FLAG))) |
ca7d802a | 666 | f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); |
943973cd JK |
667 | else |
668 | f2fs_inode_synced(inode); | |
ca7d802a | 669 | |
4f295443 JK |
670 | /* ino == 0, if f2fs_new_inode() was failed t*/ |
671 | if (inode->i_ino) | |
672 | invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, | |
673 | inode->i_ino); | |
002a41ca CY |
674 | if (xnid) |
675 | invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); | |
60dcedc9 CY |
676 | if (inode->i_nlink) { |
677 | if (is_inode_flag_set(inode, FI_APPEND_WRITE)) | |
4d57b86d | 678 | f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO); |
60dcedc9 | 679 | if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) |
4d57b86d | 680 | f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO); |
60dcedc9 | 681 | } |
91942321 | 682 | if (is_inode_flag_set(inode, FI_FREE_NID)) { |
4d57b86d | 683 | f2fs_alloc_nid_failed(sbi, inode->i_ino); |
91942321 | 684 | clear_inode_flag(inode, FI_FREE_NID); |
d8c4256c | 685 | } else { |
a4f843bd JK |
686 | /* |
687 | * If xattr nid is corrupted, we can reach out error condition, | |
4d57b86d CY |
688 | * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)). |
689 | * In that case, f2fs_check_nid_range() is enough to give a clue. | |
a4f843bd | 690 | */ |
c9b63bd0 | 691 | } |
dbf20cb2 | 692 | out_clear: |
3d204e24 | 693 | fscrypt_put_encryption_info(inode); |
dbf20cb2 | 694 | clear_inode(inode); |
19f99cee | 695 | } |
44c16156 JK |
696 | |
697 | /* caller should call f2fs_lock_op() */ | |
4d57b86d | 698 | void f2fs_handle_failed_inode(struct inode *inode) |
44c16156 JK |
699 | { |
700 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
221149c0 | 701 | struct node_info ni; |
44c16156 | 702 | |
a11b9f65 CY |
703 | /* |
704 | * clear nlink of inode in order to release resource of inode | |
705 | * immediately. | |
706 | */ | |
707 | clear_nlink(inode); | |
708 | ||
709 | /* | |
710 | * we must call this to avoid inode being remained as dirty, resulting | |
711 | * in a panic when flushing dirty inodes in gdirty_list. | |
712 | */ | |
4d57b86d | 713 | f2fs_update_inode_page(inode); |
9bb02c36 | 714 | f2fs_inode_synced(inode); |
a11b9f65 | 715 | |
221149c0 | 716 | /* don't make bad inode, since it becomes a regular file. */ |
44c16156 JK |
717 | unlock_new_inode(inode); |
718 | ||
13ec7297 | 719 | /* |
13ec7297 CY |
720 | * Note: we should add inode to orphan list before f2fs_unlock_op() |
721 | * so we can prevent losing this orphan when encoutering checkpoint | |
722 | * and following suddenly power-off. | |
723 | */ | |
4d57b86d | 724 | f2fs_get_node_info(sbi, inode->i_ino, &ni); |
221149c0 JK |
725 | |
726 | if (ni.blk_addr != NULL_ADDR) { | |
4d57b86d | 727 | int err = f2fs_acquire_orphan_inode(sbi); |
221149c0 JK |
728 | if (err) { |
729 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
730 | f2fs_msg(sbi->sb, KERN_WARNING, | |
731 | "Too many orphan inodes, run fsck to fix."); | |
732 | } else { | |
4d57b86d | 733 | f2fs_add_orphan_inode(inode); |
221149c0 | 734 | } |
4d57b86d | 735 | f2fs_alloc_nid_done(sbi, inode->i_ino); |
221149c0 | 736 | } else { |
91942321 | 737 | set_inode_flag(inode, FI_FREE_NID); |
13ec7297 | 738 | } |
44c16156 | 739 | |
44c16156 JK |
740 | f2fs_unlock_op(sbi); |
741 | ||
742 | /* iput will drop the inode object */ | |
743 | iput(inode); | |
744 | } |