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 JK |
38 | |
39 | if (flags & FS_SYNC_FL) | |
8abfb36a | 40 | new_fl |= S_SYNC; |
19f99cee | 41 | if (flags & FS_APPEND_FL) |
8abfb36a | 42 | new_fl |= S_APPEND; |
19f99cee | 43 | if (flags & FS_IMMUTABLE_FL) |
8abfb36a | 44 | new_fl |= S_IMMUTABLE; |
19f99cee | 45 | if (flags & FS_NOATIME_FL) |
8abfb36a | 46 | new_fl |= S_NOATIME; |
19f99cee | 47 | if (flags & FS_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 | ||
3c6c2beb JK |
71 | static bool __written_first_block(struct f2fs_inode *ri) |
72 | { | |
7a2af766 | 73 | block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]); |
adad81ed JK |
74 | |
75 | if (addr != NEW_ADDR && addr != NULL_ADDR) | |
3c6c2beb JK |
76 | return true; |
77 | return false; | |
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 | ||
19f99cee JK |
188 | static int do_read_inode(struct inode *inode) |
189 | { | |
4081363f | 190 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
19f99cee JK |
191 | struct f2fs_inode_info *fi = F2FS_I(inode); |
192 | struct page *node_page; | |
19f99cee | 193 | struct f2fs_inode *ri; |
5c57132e | 194 | projid_t i_projid; |
19f99cee JK |
195 | |
196 | /* Check if ino is within scope */ | |
064e0823 NJ |
197 | if (check_nid_range(sbi, inode->i_ino)) { |
198 | f2fs_msg(inode->i_sb, KERN_ERR, "bad inode number: %lu", | |
199 | (unsigned long) inode->i_ino); | |
d6b7d4b3 | 200 | WARN_ON(1); |
064e0823 NJ |
201 | return -EINVAL; |
202 | } | |
19f99cee JK |
203 | |
204 | node_page = get_node_page(sbi, inode->i_ino); | |
205 | if (IS_ERR(node_page)) | |
206 | return PTR_ERR(node_page); | |
207 | ||
58bfaf44 | 208 | ri = F2FS_INODE(node_page); |
19f99cee JK |
209 | |
210 | inode->i_mode = le16_to_cpu(ri->i_mode); | |
211 | i_uid_write(inode, le32_to_cpu(ri->i_uid)); | |
212 | i_gid_write(inode, le32_to_cpu(ri->i_gid)); | |
213 | set_nlink(inode, le32_to_cpu(ri->i_links)); | |
214 | inode->i_size = le64_to_cpu(ri->i_size); | |
000519f2 | 215 | inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); |
19f99cee JK |
216 | |
217 | inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); | |
218 | inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); | |
219 | inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); | |
220 | inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); | |
221 | inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); | |
222 | inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); | |
223 | inode->i_generation = le32_to_cpu(ri->i_generation); | |
224 | ||
225 | fi->i_current_depth = le32_to_cpu(ri->i_current_depth); | |
226 | fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); | |
227 | fi->i_flags = le32_to_cpu(ri->i_flags); | |
228 | fi->flags = 0; | |
19f99cee | 229 | fi->i_advise = ri->i_advise; |
6666e6aa | 230 | fi->i_pino = le32_to_cpu(ri->i_pino); |
38431545 | 231 | fi->i_dir_level = ri->i_dir_level; |
3d1e3807 | 232 | |
ed3d1256 JK |
233 | if (f2fs_init_extent_tree(inode, &ri->i_ext)) |
234 | set_page_dirty(node_page); | |
0c872e2d | 235 | |
91942321 | 236 | get_inline_info(inode, ri); |
3d1e3807 | 237 | |
7a2af766 CY |
238 | fi->i_extra_isize = f2fs_has_extra_attr(inode) ? |
239 | le16_to_cpu(ri->i_extra_isize) : 0; | |
240 | ||
6afc662e CY |
241 | if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) { |
242 | f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode)); | |
243 | fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); | |
244 | } else if (f2fs_has_inline_xattr(inode) || | |
245 | f2fs_has_inline_dentry(inode)) { | |
246 | fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; | |
247 | } else { | |
248 | ||
249 | /* | |
250 | * Previous inline data or directory always reserved 200 bytes | |
251 | * in inode layout, even if inline_xattr is disabled. In order | |
252 | * to keep inline_dentry's structure for backward compatibility, | |
253 | * we get the space back only from inline_data. | |
254 | */ | |
255 | fi->i_inline_xattr_size = 0; | |
256 | } | |
257 | ||
b3d208f9 JK |
258 | /* check data exist */ |
259 | if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) | |
9e5ba77f | 260 | __recover_inline_status(inode, node_page); |
b3d208f9 | 261 | |
3d1e3807 JK |
262 | /* get rdev by using inline_info */ |
263 | __get_inode_rdev(inode, ri); | |
264 | ||
3c6c2beb | 265 | if (__written_first_block(ri)) |
91942321 | 266 | set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN); |
3c6c2beb | 267 | |
26de9b11 JK |
268 | if (!need_inode_block_update(sbi, inode->i_ino)) |
269 | fi->last_disk_size = inode->i_size; | |
270 | ||
5c57132e CY |
271 | if (fi->i_flags & FS_PROJINHERIT_FL) |
272 | set_inode_flag(inode, FI_PROJ_INHERIT); | |
273 | ||
274 | if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi->sb) && | |
275 | F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) | |
276 | i_projid = (projid_t)le32_to_cpu(ri->i_projid); | |
277 | else | |
278 | i_projid = F2FS_DEF_PROJID; | |
279 | fi->i_projid = make_kprojid(&init_user_ns, i_projid); | |
280 | ||
19f99cee | 281 | f2fs_put_page(node_page, 1); |
9d1015dd | 282 | |
d5e8f6c9 | 283 | stat_inc_inline_xattr(inode); |
9d1015dd JK |
284 | stat_inc_inline_inode(inode); |
285 | stat_inc_inline_dir(inode); | |
286 | ||
9e5ba77f | 287 | return 0; |
19f99cee JK |
288 | } |
289 | ||
290 | struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) | |
291 | { | |
292 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
293 | struct inode *inode; | |
a2a4a7e4 | 294 | int ret = 0; |
19f99cee JK |
295 | |
296 | inode = iget_locked(sb, ino); | |
297 | if (!inode) | |
298 | return ERR_PTR(-ENOMEM); | |
a2a4a7e4 NJ |
299 | |
300 | if (!(inode->i_state & I_NEW)) { | |
301 | trace_f2fs_iget(inode); | |
19f99cee | 302 | return inode; |
a2a4a7e4 | 303 | } |
19f99cee JK |
304 | if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi)) |
305 | goto make_now; | |
306 | ||
307 | ret = do_read_inode(inode); | |
308 | if (ret) | |
309 | goto bad_inode; | |
19f99cee JK |
310 | make_now: |
311 | if (ino == F2FS_NODE_INO(sbi)) { | |
312 | inode->i_mapping->a_ops = &f2fs_node_aops; | |
313 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO); | |
314 | } else if (ino == F2FS_META_INO(sbi)) { | |
315 | inode->i_mapping->a_ops = &f2fs_meta_aops; | |
316 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO); | |
317 | } else if (S_ISREG(inode->i_mode)) { | |
318 | inode->i_op = &f2fs_file_inode_operations; | |
319 | inode->i_fop = &f2fs_file_operations; | |
320 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
321 | } else if (S_ISDIR(inode->i_mode)) { | |
322 | inode->i_op = &f2fs_dir_inode_operations; | |
323 | inode->i_fop = &f2fs_dir_operations; | |
324 | inode->i_mapping->a_ops = &f2fs_dblock_aops; | |
a78186eb | 325 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_HIGH_ZERO); |
19f99cee | 326 | } else if (S_ISLNK(inode->i_mode)) { |
cbaf042a JK |
327 | if (f2fs_encrypted_inode(inode)) |
328 | inode->i_op = &f2fs_encrypted_symlink_inode_operations; | |
329 | else | |
330 | inode->i_op = &f2fs_symlink_inode_operations; | |
21fc61c7 | 331 | inode_nohighmem(inode); |
19f99cee JK |
332 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
333 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || | |
334 | S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
335 | inode->i_op = &f2fs_special_inode_operations; | |
336 | init_special_inode(inode, inode->i_mode, inode->i_rdev); | |
337 | } else { | |
338 | ret = -EIO; | |
339 | goto bad_inode; | |
340 | } | |
93607124 | 341 | f2fs_set_inode_flags(inode); |
19f99cee | 342 | unlock_new_inode(inode); |
a2a4a7e4 | 343 | trace_f2fs_iget(inode); |
19f99cee JK |
344 | return inode; |
345 | ||
346 | bad_inode: | |
347 | iget_failed(inode); | |
a2a4a7e4 | 348 | trace_f2fs_iget_exit(inode, ret); |
19f99cee JK |
349 | return ERR_PTR(ret); |
350 | } | |
351 | ||
e8ea9b3d JK |
352 | struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) |
353 | { | |
354 | struct inode *inode; | |
355 | retry: | |
356 | inode = f2fs_iget(sb, ino); | |
357 | if (IS_ERR(inode)) { | |
358 | if (PTR_ERR(inode) == -ENOMEM) { | |
359 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
360 | goto retry; | |
361 | } | |
362 | } | |
363 | return inode; | |
364 | } | |
365 | ||
211a6fa0 | 366 | void update_inode(struct inode *inode, struct page *node_page) |
19f99cee | 367 | { |
19f99cee | 368 | struct f2fs_inode *ri; |
b691d98f | 369 | struct extent_tree *et = F2FS_I(inode)->extent_tree; |
19f99cee | 370 | |
fec1d657 | 371 | f2fs_wait_on_page_writeback(node_page, NODE, true); |
211a6fa0 YH |
372 | set_page_dirty(node_page); |
373 | ||
374 | f2fs_inode_synced(inode); | |
19f99cee | 375 | |
58bfaf44 | 376 | ri = F2FS_INODE(node_page); |
19f99cee JK |
377 | |
378 | ri->i_mode = cpu_to_le16(inode->i_mode); | |
379 | ri->i_advise = F2FS_I(inode)->i_advise; | |
380 | ri->i_uid = cpu_to_le32(i_uid_read(inode)); | |
381 | ri->i_gid = cpu_to_le32(i_gid_read(inode)); | |
382 | ri->i_links = cpu_to_le32(inode->i_nlink); | |
383 | ri->i_size = cpu_to_le64(i_size_read(inode)); | |
000519f2 | 384 | ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); |
0c872e2d | 385 | |
b691d98f CY |
386 | if (et) { |
387 | read_lock(&et->lock); | |
388 | set_raw_extent(&et->largest, &ri->i_ext); | |
389 | read_unlock(&et->lock); | |
390 | } else { | |
3e72f721 | 391 | memset(&ri->i_ext, 0, sizeof(ri->i_ext)); |
b691d98f | 392 | } |
91942321 | 393 | set_raw_inline(inode, ri); |
19f99cee JK |
394 | |
395 | ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); | |
396 | ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); | |
397 | ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); | |
398 | ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); | |
399 | ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); | |
400 | ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); | |
401 | ri->i_current_depth = cpu_to_le32(F2FS_I(inode)->i_current_depth); | |
402 | ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); | |
403 | ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); | |
6666e6aa | 404 | ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); |
19f99cee | 405 | ri->i_generation = cpu_to_le32(inode->i_generation); |
38431545 | 406 | ri->i_dir_level = F2FS_I(inode)->i_dir_level; |
7d79e75f | 407 | |
5c57132e | 408 | if (f2fs_has_extra_attr(inode)) { |
7a2af766 CY |
409 | ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); |
410 | ||
6afc662e CY |
411 | if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)->sb)) |
412 | ri->i_inline_xattr_size = | |
413 | cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size); | |
414 | ||
5c57132e CY |
415 | if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) && |
416 | F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, | |
417 | i_projid)) { | |
418 | projid_t i_projid; | |
419 | ||
420 | i_projid = from_kprojid(&init_user_ns, | |
421 | F2FS_I(inode)->i_projid); | |
422 | ri->i_projid = cpu_to_le32(i_projid); | |
423 | } | |
424 | } | |
425 | ||
3d1e3807 | 426 | __set_inode_rdev(inode, ri); |
398b1ac5 | 427 | set_cold_node(inode, node_page); |
12719ae1 | 428 | |
2049d4fc JK |
429 | /* deleted inode */ |
430 | if (inode->i_nlink == 0) | |
431 | clear_inline_node(node_page); | |
432 | ||
19f99cee JK |
433 | } |
434 | ||
211a6fa0 | 435 | void update_inode_page(struct inode *inode) |
19f99cee | 436 | { |
4081363f | 437 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
19f99cee | 438 | struct page *node_page; |
744602cf | 439 | retry: |
19f99cee | 440 | node_page = get_node_page(sbi, inode->i_ino); |
744602cf JK |
441 | if (IS_ERR(node_page)) { |
442 | int err = PTR_ERR(node_page); | |
443 | if (err == -ENOMEM) { | |
444 | cond_resched(); | |
445 | goto retry; | |
446 | } else if (err != -ENOENT) { | |
38f91ca8 | 447 | f2fs_stop_checkpoint(sbi, false); |
744602cf | 448 | } |
211a6fa0 | 449 | return; |
744602cf | 450 | } |
211a6fa0 | 451 | update_inode(inode, node_page); |
19f99cee | 452 | f2fs_put_page(node_page, 1); |
19f99cee JK |
453 | } |
454 | ||
39936837 JK |
455 | int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) |
456 | { | |
4081363f | 457 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
39936837 JK |
458 | |
459 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
460 | inode->i_ino == F2FS_META_INO(sbi)) | |
461 | return 0; | |
462 | ||
91942321 | 463 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) |
b3783873 JK |
464 | return 0; |
465 | ||
39936837 | 466 | /* |
c5cd29d2 | 467 | * We need to balance fs here to prevent from producing dirty node pages |
39936837 JK |
468 | * during the urgent cleaning time when runing out of free sections. |
469 | */ | |
a7881893 JK |
470 | update_inode_page(inode); |
471 | if (wbc && wbc->nr_to_write) | |
2c4db1a6 | 472 | f2fs_balance_fs(sbi, true); |
744602cf | 473 | return 0; |
39936837 JK |
474 | } |
475 | ||
0a8165d7 | 476 | /* |
19f99cee JK |
477 | * Called at the last iput() if i_nlink is zero |
478 | */ | |
479 | void f2fs_evict_inode(struct inode *inode) | |
480 | { | |
4081363f | 481 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
91942321 | 482 | nid_t xnid = F2FS_I(inode)->i_xattr_nid; |
13ec7297 | 483 | int err = 0; |
19f99cee | 484 | |
88b88a66 | 485 | /* some remained atomic pages should discarded */ |
1e84371f | 486 | if (f2fs_is_atomic_file(inode)) |
29b96b54 | 487 | drop_inmem_pages(inode); |
88b88a66 | 488 | |
a2a4a7e4 | 489 | trace_f2fs_evict_inode(inode); |
91b0abe3 | 490 | truncate_inode_pages_final(&inode->i_data); |
19f99cee JK |
491 | |
492 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
493 | inode->i_ino == F2FS_META_INO(sbi)) | |
dbf20cb2 | 494 | goto out_clear; |
19f99cee | 495 | |
a7ffdbe2 | 496 | f2fs_bug_on(sbi, get_dirty_pages(inode)); |
c227f912 | 497 | remove_dirty_inode(inode); |
19f99cee | 498 | |
3e72f721 JK |
499 | f2fs_destroy_extent_tree(inode); |
500 | ||
19f99cee JK |
501 | if (inode->i_nlink || is_bad_inode(inode)) |
502 | goto no_delete; | |
503 | ||
0abd675e CY |
504 | dquot_initialize(inode); |
505 | ||
60dcedc9 CY |
506 | remove_ino_entry(sbi, inode->i_ino, APPEND_INO); |
507 | remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); | |
39d787be | 508 | remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); |
60dcedc9 | 509 | |
d6212a5f | 510 | sb_start_intwrite(inode->i_sb); |
91942321 | 511 | set_inode_flag(inode, FI_NO_ALLOC); |
19f99cee | 512 | i_size_write(inode, 0); |
4c0c2949 | 513 | retry: |
19f99cee | 514 | if (F2FS_HAS_BLOCKS(inode)) |
9a449e9c | 515 | err = f2fs_truncate(inode); |
19f99cee | 516 | |
8c1b3c0f JK |
517 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
518 | if (time_to_inject(sbi, FAULT_EVICT_INODE)) { | |
519 | f2fs_show_injection_info(FAULT_EVICT_INODE); | |
520 | err = -EIO; | |
521 | } | |
522 | #endif | |
13ec7297 CY |
523 | if (!err) { |
524 | f2fs_lock_op(sbi); | |
525 | err = remove_inode_page(inode); | |
526 | f2fs_unlock_op(sbi); | |
a11b9f65 CY |
527 | if (err == -ENOENT) |
528 | err = 0; | |
13ec7297 | 529 | } |
39936837 | 530 | |
4c0c2949 JK |
531 | /* give more chances, if ENOMEM case */ |
532 | if (err == -ENOMEM) { | |
533 | err = 0; | |
534 | goto retry; | |
535 | } | |
536 | ||
0f18b462 JK |
537 | if (err) |
538 | update_inode_page(inode); | |
0abd675e | 539 | dquot_free_inode(inode); |
d6212a5f | 540 | sb_end_intwrite(inode->i_sb); |
19f99cee | 541 | no_delete: |
0abd675e CY |
542 | dquot_drop(inode); |
543 | ||
d5e8f6c9 | 544 | stat_dec_inline_xattr(inode); |
3289c061 | 545 | stat_dec_inline_dir(inode); |
e7a2bf22 | 546 | stat_dec_inline_inode(inode); |
0bdee482 | 547 | |
943973cd | 548 | if (likely(!is_set_ckpt_flags(sbi, CP_ERROR_FLAG))) |
ca7d802a | 549 | f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); |
943973cd JK |
550 | else |
551 | f2fs_inode_synced(inode); | |
ca7d802a | 552 | |
4f295443 JK |
553 | /* ino == 0, if f2fs_new_inode() was failed t*/ |
554 | if (inode->i_ino) | |
555 | invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, | |
556 | inode->i_ino); | |
002a41ca CY |
557 | if (xnid) |
558 | invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); | |
60dcedc9 CY |
559 | if (inode->i_nlink) { |
560 | if (is_inode_flag_set(inode, FI_APPEND_WRITE)) | |
561 | add_ino_entry(sbi, inode->i_ino, APPEND_INO); | |
562 | if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) | |
563 | add_ino_entry(sbi, inode->i_ino, UPDATE_INO); | |
564 | } | |
91942321 | 565 | if (is_inode_flag_set(inode, FI_FREE_NID)) { |
221149c0 | 566 | alloc_nid_failed(sbi, inode->i_ino); |
91942321 | 567 | clear_inode_flag(inode, FI_FREE_NID); |
d8c4256c JK |
568 | } else { |
569 | f2fs_bug_on(sbi, err && | |
570 | !exist_written_data(sbi, inode->i_ino, ORPHAN_INO)); | |
c9b63bd0 | 571 | } |
dbf20cb2 | 572 | out_clear: |
0b81d077 | 573 | fscrypt_put_encryption_info(inode, NULL); |
dbf20cb2 | 574 | clear_inode(inode); |
19f99cee | 575 | } |
44c16156 JK |
576 | |
577 | /* caller should call f2fs_lock_op() */ | |
578 | void handle_failed_inode(struct inode *inode) | |
579 | { | |
580 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
221149c0 | 581 | struct node_info ni; |
44c16156 | 582 | |
a11b9f65 CY |
583 | /* |
584 | * clear nlink of inode in order to release resource of inode | |
585 | * immediately. | |
586 | */ | |
587 | clear_nlink(inode); | |
588 | ||
589 | /* | |
590 | * we must call this to avoid inode being remained as dirty, resulting | |
591 | * in a panic when flushing dirty inodes in gdirty_list. | |
592 | */ | |
593 | update_inode_page(inode); | |
9bb02c36 | 594 | f2fs_inode_synced(inode); |
a11b9f65 | 595 | |
221149c0 | 596 | /* don't make bad inode, since it becomes a regular file. */ |
44c16156 JK |
597 | unlock_new_inode(inode); |
598 | ||
13ec7297 | 599 | /* |
13ec7297 CY |
600 | * Note: we should add inode to orphan list before f2fs_unlock_op() |
601 | * so we can prevent losing this orphan when encoutering checkpoint | |
602 | * and following suddenly power-off. | |
603 | */ | |
221149c0 JK |
604 | get_node_info(sbi, inode->i_ino, &ni); |
605 | ||
606 | if (ni.blk_addr != NULL_ADDR) { | |
607 | int err = acquire_orphan_inode(sbi); | |
608 | if (err) { | |
609 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
610 | f2fs_msg(sbi->sb, KERN_WARNING, | |
611 | "Too many orphan inodes, run fsck to fix."); | |
612 | } else { | |
67c3758d | 613 | add_orphan_inode(inode); |
221149c0 JK |
614 | } |
615 | alloc_nid_done(sbi, inode->i_ino); | |
616 | } else { | |
91942321 | 617 | set_inode_flag(inode, FI_FREE_NID); |
13ec7297 | 618 | } |
44c16156 | 619 | |
44c16156 JK |
620 | f2fs_unlock_op(sbi); |
621 | ||
622 | /* iput will drop the inode object */ | |
623 | iput(inode); | |
624 | } |