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ccd979bd MF |
1 | /* -*- mode: c; c-basic-offset: 8; -*- |
2 | * vim: noexpandtab sw=8 ts=8 sts=0: | |
3 | * | |
4 | * inode.c | |
5 | * | |
6 | * vfs' aops, fops, dops and iops | |
7 | * | |
8 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public | |
12 | * License as published by the Free Software Foundation; either | |
13 | * version 2 of the License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public | |
21 | * License along with this program; if not, write to the | |
22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | * Boston, MA 021110-1307, USA. | |
24 | */ | |
25 | ||
26 | #include <linux/fs.h> | |
27 | #include <linux/types.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/highmem.h> | |
30 | #include <linux/pagemap.h> | |
a90714c1 | 31 | #include <linux/quotaops.h> |
ccd979bd MF |
32 | |
33 | #include <asm/byteorder.h> | |
34 | ||
35 | #define MLOG_MASK_PREFIX ML_INODE | |
36 | #include <cluster/masklog.h> | |
37 | ||
38 | #include "ocfs2.h" | |
39 | ||
40 | #include "alloc.h" | |
9b7895ef | 41 | #include "dir.h" |
d6b32bbb | 42 | #include "blockcheck.h" |
ccd979bd MF |
43 | #include "dlmglue.h" |
44 | #include "extent_map.h" | |
45 | #include "file.h" | |
b4df6ed8 | 46 | #include "heartbeat.h" |
ccd979bd MF |
47 | #include "inode.h" |
48 | #include "journal.h" | |
49 | #include "namei.h" | |
50 | #include "suballoc.h" | |
51 | #include "super.h" | |
52 | #include "symlink.h" | |
53 | #include "sysfile.h" | |
54 | #include "uptodate.h" | |
cf1d6c76 | 55 | #include "xattr.h" |
8b2c0dba | 56 | #include "refcounttree.h" |
ccd979bd MF |
57 | |
58 | #include "buffer_head_io.h" | |
59 | ||
ccd979bd MF |
60 | struct ocfs2_find_inode_args |
61 | { | |
62 | u64 fi_blkno; | |
63 | unsigned long fi_ino; | |
64 | unsigned int fi_flags; | |
5fa0613e | 65 | unsigned int fi_sysfile_type; |
ccd979bd MF |
66 | }; |
67 | ||
5fa0613e JK |
68 | static struct lock_class_key ocfs2_sysfile_lock_key[NUM_SYSTEM_INODES]; |
69 | ||
ccd979bd MF |
70 | static int ocfs2_read_locked_inode(struct inode *inode, |
71 | struct ocfs2_find_inode_args *args); | |
72 | static int ocfs2_init_locked_inode(struct inode *inode, void *opaque); | |
73 | static int ocfs2_find_actor(struct inode *inode, void *opaque); | |
74 | static int ocfs2_truncate_for_delete(struct ocfs2_super *osb, | |
75 | struct inode *inode, | |
76 | struct buffer_head *fe_bh); | |
77 | ||
ca4d147e HP |
78 | void ocfs2_set_inode_flags(struct inode *inode) |
79 | { | |
80 | unsigned int flags = OCFS2_I(inode)->ip_attr; | |
81 | ||
82 | inode->i_flags &= ~(S_IMMUTABLE | | |
83 | S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC); | |
84 | ||
85 | if (flags & OCFS2_IMMUTABLE_FL) | |
86 | inode->i_flags |= S_IMMUTABLE; | |
87 | ||
88 | if (flags & OCFS2_SYNC_FL) | |
89 | inode->i_flags |= S_SYNC; | |
90 | if (flags & OCFS2_APPEND_FL) | |
91 | inode->i_flags |= S_APPEND; | |
92 | if (flags & OCFS2_NOATIME_FL) | |
93 | inode->i_flags |= S_NOATIME; | |
94 | if (flags & OCFS2_DIRSYNC_FL) | |
95 | inode->i_flags |= S_DIRSYNC; | |
96 | } | |
97 | ||
6e4b0d56 JK |
98 | /* Propagate flags from i_flags to OCFS2_I(inode)->ip_attr */ |
99 | void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi) | |
100 | { | |
101 | unsigned int flags = oi->vfs_inode.i_flags; | |
102 | ||
103 | oi->ip_attr &= ~(OCFS2_SYNC_FL|OCFS2_APPEND_FL| | |
104 | OCFS2_IMMUTABLE_FL|OCFS2_NOATIME_FL|OCFS2_DIRSYNC_FL); | |
105 | if (flags & S_SYNC) | |
106 | oi->ip_attr |= OCFS2_SYNC_FL; | |
107 | if (flags & S_APPEND) | |
108 | oi->ip_attr |= OCFS2_APPEND_FL; | |
109 | if (flags & S_IMMUTABLE) | |
110 | oi->ip_attr |= OCFS2_IMMUTABLE_FL; | |
111 | if (flags & S_NOATIME) | |
112 | oi->ip_attr |= OCFS2_NOATIME_FL; | |
113 | if (flags & S_DIRSYNC) | |
114 | oi->ip_attr |= OCFS2_DIRSYNC_FL; | |
115 | } | |
116 | ||
6ca497a8 | 117 | struct inode *ocfs2_ilookup(struct super_block *sb, u64 blkno) |
118 | { | |
119 | struct ocfs2_find_inode_args args; | |
120 | ||
121 | args.fi_blkno = blkno; | |
122 | args.fi_flags = 0; | |
123 | args.fi_ino = ino_from_blkno(sb, blkno); | |
124 | args.fi_sysfile_type = 0; | |
125 | ||
126 | return ilookup5(sb, blkno, ocfs2_find_actor, &args); | |
127 | } | |
5fa0613e JK |
128 | struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags, |
129 | int sysfile_type) | |
ccd979bd MF |
130 | { |
131 | struct inode *inode = NULL; | |
132 | struct super_block *sb = osb->sb; | |
133 | struct ocfs2_find_inode_args args; | |
134 | ||
b0697053 | 135 | mlog_entry("(blkno = %llu)\n", (unsigned long long)blkno); |
ccd979bd MF |
136 | |
137 | /* Ok. By now we've either got the offsets passed to us by the | |
138 | * caller, or we just pulled them off the bh. Lets do some | |
139 | * sanity checks to make sure they're OK. */ | |
140 | if (blkno == 0) { | |
141 | inode = ERR_PTR(-EINVAL); | |
142 | mlog_errno(PTR_ERR(inode)); | |
143 | goto bail; | |
144 | } | |
145 | ||
146 | args.fi_blkno = blkno; | |
24c19ef4 | 147 | args.fi_flags = flags; |
ccd979bd | 148 | args.fi_ino = ino_from_blkno(sb, blkno); |
5fa0613e | 149 | args.fi_sysfile_type = sysfile_type; |
ccd979bd MF |
150 | |
151 | inode = iget5_locked(sb, args.fi_ino, ocfs2_find_actor, | |
152 | ocfs2_init_locked_inode, &args); | |
153 | /* inode was *not* in the inode cache. 2.6.x requires | |
154 | * us to do our own read_inode call and unlock it | |
155 | * afterwards. */ | |
156 | if (inode && inode->i_state & I_NEW) { | |
157 | mlog(0, "Inode was not in inode cache, reading it.\n"); | |
158 | ocfs2_read_locked_inode(inode, &args); | |
159 | unlock_new_inode(inode); | |
160 | } | |
161 | if (inode == NULL) { | |
162 | inode = ERR_PTR(-ENOMEM); | |
163 | mlog_errno(PTR_ERR(inode)); | |
164 | goto bail; | |
165 | } | |
166 | if (is_bad_inode(inode)) { | |
167 | iput(inode); | |
168 | inode = ERR_PTR(-ESTALE); | |
ccd979bd MF |
169 | goto bail; |
170 | } | |
171 | ||
172 | bail: | |
173 | if (!IS_ERR(inode)) { | |
b0697053 MF |
174 | mlog(0, "returning inode with number %llu\n", |
175 | (unsigned long long)OCFS2_I(inode)->ip_blkno); | |
ccd979bd | 176 | mlog_exit_ptr(inode); |
6a1bd4a5 | 177 | } |
ccd979bd MF |
178 | |
179 | return inode; | |
180 | } | |
181 | ||
182 | ||
183 | /* | |
184 | * here's how inodes get read from disk: | |
185 | * iget5_locked -> find_actor -> OCFS2_FIND_ACTOR | |
186 | * found? : return the in-memory inode | |
187 | * not found? : get_new_inode -> OCFS2_INIT_LOCKED_INODE | |
188 | */ | |
189 | ||
190 | static int ocfs2_find_actor(struct inode *inode, void *opaque) | |
191 | { | |
192 | struct ocfs2_find_inode_args *args = NULL; | |
193 | struct ocfs2_inode_info *oi = OCFS2_I(inode); | |
194 | int ret = 0; | |
195 | ||
196 | mlog_entry("(0x%p, %lu, 0x%p)\n", inode, inode->i_ino, opaque); | |
197 | ||
198 | args = opaque; | |
199 | ||
200 | mlog_bug_on_msg(!inode, "No inode in find actor!\n"); | |
201 | ||
202 | if (oi->ip_blkno != args->fi_blkno) | |
203 | goto bail; | |
204 | ||
ccd979bd MF |
205 | ret = 1; |
206 | bail: | |
207 | mlog_exit(ret); | |
208 | return ret; | |
209 | } | |
210 | ||
211 | /* | |
212 | * initialize the new inode, but don't do anything that would cause | |
213 | * us to sleep. | |
214 | * return 0 on success, 1 on failure | |
215 | */ | |
216 | static int ocfs2_init_locked_inode(struct inode *inode, void *opaque) | |
217 | { | |
218 | struct ocfs2_find_inode_args *args = opaque; | |
cb25797d JK |
219 | static struct lock_class_key ocfs2_quota_ip_alloc_sem_key, |
220 | ocfs2_file_ip_alloc_sem_key; | |
ccd979bd MF |
221 | |
222 | mlog_entry("inode = %p, opaque = %p\n", inode, opaque); | |
223 | ||
224 | inode->i_ino = args->fi_ino; | |
225 | OCFS2_I(inode)->ip_blkno = args->fi_blkno; | |
5fa0613e JK |
226 | if (args->fi_sysfile_type != 0) |
227 | lockdep_set_class(&inode->i_mutex, | |
228 | &ocfs2_sysfile_lock_key[args->fi_sysfile_type]); | |
cb25797d JK |
229 | if (args->fi_sysfile_type == USER_QUOTA_SYSTEM_INODE || |
230 | args->fi_sysfile_type == GROUP_QUOTA_SYSTEM_INODE || | |
231 | args->fi_sysfile_type == LOCAL_USER_QUOTA_SYSTEM_INODE || | |
232 | args->fi_sysfile_type == LOCAL_GROUP_QUOTA_SYSTEM_INODE) | |
233 | lockdep_set_class(&OCFS2_I(inode)->ip_alloc_sem, | |
234 | &ocfs2_quota_ip_alloc_sem_key); | |
235 | else | |
236 | lockdep_set_class(&OCFS2_I(inode)->ip_alloc_sem, | |
237 | &ocfs2_file_ip_alloc_sem_key); | |
ccd979bd MF |
238 | |
239 | mlog_exit(0); | |
240 | return 0; | |
241 | } | |
242 | ||
b657c95c JB |
243 | void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe, |
244 | int create_ino) | |
ccd979bd MF |
245 | { |
246 | struct super_block *sb; | |
247 | struct ocfs2_super *osb; | |
53da4939 | 248 | int use_plocks = 1; |
ccd979bd | 249 | |
b0697053 | 250 | mlog_entry("(0x%p, size:%llu)\n", inode, |
1ca1a111 | 251 | (unsigned long long)le64_to_cpu(fe->i_size)); |
ccd979bd MF |
252 | |
253 | sb = inode->i_sb; | |
254 | osb = OCFS2_SB(sb); | |
255 | ||
53da4939 MF |
256 | if ((osb->s_mount_opt & OCFS2_MOUNT_LOCALFLOCKS) || |
257 | ocfs2_mount_local(osb) || !ocfs2_stack_supports_plocks()) | |
258 | use_plocks = 0; | |
259 | ||
b657c95c JB |
260 | /* |
261 | * These have all been checked by ocfs2_read_inode_block() or set | |
262 | * by ocfs2_mknod_locked(), so a failure is a code bug. | |
263 | */ | |
264 | BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); /* This means that read_inode | |
265 | cannot create a superblock | |
266 | inode today. change if | |
267 | that is needed. */ | |
268 | BUG_ON(!(fe->i_flags & cpu_to_le32(OCFS2_VALID_FL))); | |
269 | BUG_ON(le32_to_cpu(fe->i_fs_generation) != osb->fs_generation); | |
ccd979bd | 270 | |
ccd979bd | 271 | |
8110b073 MF |
272 | OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); |
273 | OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr); | |
15b1e36b | 274 | OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features); |
8110b073 | 275 | |
ccd979bd MF |
276 | inode->i_version = 1; |
277 | inode->i_generation = le32_to_cpu(fe->i_generation); | |
278 | inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev)); | |
279 | inode->i_mode = le16_to_cpu(fe->i_mode); | |
280 | inode->i_uid = le32_to_cpu(fe->i_uid); | |
281 | inode->i_gid = le32_to_cpu(fe->i_gid); | |
ccd979bd MF |
282 | |
283 | /* Fast symlinks will have i_size but no allocated clusters. */ | |
284 | if (S_ISLNK(inode->i_mode) && !fe->i_clusters) | |
285 | inode->i_blocks = 0; | |
286 | else | |
8110b073 | 287 | inode->i_blocks = ocfs2_inode_sector_count(inode); |
ccd979bd | 288 | inode->i_mapping->a_ops = &ocfs2_aops; |
ccd979bd MF |
289 | inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime); |
290 | inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec); | |
291 | inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime); | |
292 | inode->i_mtime.tv_nsec = le32_to_cpu(fe->i_mtime_nsec); | |
293 | inode->i_ctime.tv_sec = le64_to_cpu(fe->i_ctime); | |
294 | inode->i_ctime.tv_nsec = le32_to_cpu(fe->i_ctime_nsec); | |
295 | ||
296 | if (OCFS2_I(inode)->ip_blkno != le64_to_cpu(fe->i_blkno)) | |
297 | mlog(ML_ERROR, | |
b0697053 MF |
298 | "ip_blkno %llu != i_blkno %llu!\n", |
299 | (unsigned long long)OCFS2_I(inode)->ip_blkno, | |
1ca1a111 | 300 | (unsigned long long)le64_to_cpu(fe->i_blkno)); |
ccd979bd | 301 | |
198a1ca3 | 302 | inode->i_nlink = ocfs2_read_links_count(fe); |
ccd979bd | 303 | |
bbbd0eb3 | 304 | if (fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) { |
24c19ef4 | 305 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SYSTEM_FILE; |
bbbd0eb3 JK |
306 | inode->i_flags |= S_NOQUOTA; |
307 | } | |
24c19ef4 | 308 | |
ccd979bd MF |
309 | if (fe->i_flags & cpu_to_le32(OCFS2_LOCAL_ALLOC_FL)) { |
310 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP; | |
311 | mlog(0, "local alloc inode: i_ino=%lu\n", inode->i_ino); | |
312 | } else if (fe->i_flags & cpu_to_le32(OCFS2_BITMAP_FL)) { | |
313 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP; | |
1a224ad1 JK |
314 | } else if (fe->i_flags & cpu_to_le32(OCFS2_QUOTA_FL)) { |
315 | inode->i_flags |= S_NOQUOTA; | |
ccd979bd MF |
316 | } else if (fe->i_flags & cpu_to_le32(OCFS2_SUPER_BLOCK_FL)) { |
317 | mlog(0, "superblock inode: i_ino=%lu\n", inode->i_ino); | |
318 | /* we can't actually hit this as read_inode can't | |
319 | * handle superblocks today ;-) */ | |
320 | BUG(); | |
321 | } | |
322 | ||
323 | switch (inode->i_mode & S_IFMT) { | |
324 | case S_IFREG: | |
53da4939 MF |
325 | if (use_plocks) |
326 | inode->i_fop = &ocfs2_fops; | |
327 | else | |
328 | inode->i_fop = &ocfs2_fops_no_plocks; | |
ccd979bd MF |
329 | inode->i_op = &ocfs2_file_iops; |
330 | i_size_write(inode, le64_to_cpu(fe->i_size)); | |
331 | break; | |
332 | case S_IFDIR: | |
333 | inode->i_op = &ocfs2_dir_iops; | |
53da4939 MF |
334 | if (use_plocks) |
335 | inode->i_fop = &ocfs2_dops; | |
336 | else | |
337 | inode->i_fop = &ocfs2_dops_no_plocks; | |
ccd979bd MF |
338 | i_size_write(inode, le64_to_cpu(fe->i_size)); |
339 | break; | |
340 | case S_IFLNK: | |
341 | if (ocfs2_inode_is_fast_symlink(inode)) | |
342 | inode->i_op = &ocfs2_fast_symlink_inode_operations; | |
343 | else | |
344 | inode->i_op = &ocfs2_symlink_inode_operations; | |
345 | i_size_write(inode, le64_to_cpu(fe->i_size)); | |
346 | break; | |
347 | default: | |
348 | inode->i_op = &ocfs2_special_file_iops; | |
349 | init_special_inode(inode, inode->i_mode, | |
350 | inode->i_rdev); | |
351 | break; | |
352 | } | |
353 | ||
24c19ef4 MF |
354 | if (create_ino) { |
355 | inode->i_ino = ino_from_blkno(inode->i_sb, | |
356 | le64_to_cpu(fe->i_blkno)); | |
357 | ||
358 | /* | |
359 | * If we ever want to create system files from kernel, | |
360 | * the generation argument to | |
361 | * ocfs2_inode_lock_res_init() will have to change. | |
362 | */ | |
1ca1a111 | 363 | BUG_ON(le32_to_cpu(fe->i_flags) & OCFS2_SYSTEM_FL); |
24c19ef4 | 364 | |
e63aecb6 | 365 | ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres, |
24c19ef4 | 366 | OCFS2_LOCK_TYPE_META, 0, inode); |
50008630 TY |
367 | |
368 | ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres, | |
369 | OCFS2_LOCK_TYPE_OPEN, 0, inode); | |
24c19ef4 MF |
370 | } |
371 | ||
ccd979bd | 372 | ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_rw_lockres, |
24c19ef4 MF |
373 | OCFS2_LOCK_TYPE_RW, inode->i_generation, |
374 | inode); | |
375 | ||
ca4d147e | 376 | ocfs2_set_inode_flags(inode); |
ca4d147e | 377 | |
13821151 TM |
378 | OCFS2_I(inode)->ip_last_used_slot = 0; |
379 | OCFS2_I(inode)->ip_last_used_group = 0; | |
e3b4a97d MF |
380 | |
381 | if (S_ISDIR(inode->i_mode)) | |
382 | ocfs2_resv_set_type(&OCFS2_I(inode)->ip_la_data_resv, | |
383 | OCFS2_RESV_FLAG_DIR); | |
b657c95c | 384 | mlog_exit_void(); |
ccd979bd MF |
385 | } |
386 | ||
387 | static int ocfs2_read_locked_inode(struct inode *inode, | |
388 | struct ocfs2_find_inode_args *args) | |
389 | { | |
390 | struct super_block *sb; | |
391 | struct ocfs2_super *osb; | |
392 | struct ocfs2_dinode *fe; | |
393 | struct buffer_head *bh = NULL; | |
24c19ef4 MF |
394 | int status, can_lock; |
395 | u32 generation = 0; | |
ccd979bd MF |
396 | |
397 | mlog_entry("(0x%p, 0x%p)\n", inode, args); | |
398 | ||
399 | status = -EINVAL; | |
400 | if (inode == NULL || inode->i_sb == NULL) { | |
401 | mlog(ML_ERROR, "bad inode\n"); | |
24c19ef4 | 402 | return status; |
ccd979bd MF |
403 | } |
404 | sb = inode->i_sb; | |
405 | osb = OCFS2_SB(sb); | |
406 | ||
407 | if (!args) { | |
408 | mlog(ML_ERROR, "bad inode args\n"); | |
409 | make_bad_inode(inode); | |
24c19ef4 MF |
410 | return status; |
411 | } | |
412 | ||
413 | /* | |
414 | * To improve performance of cold-cache inode stats, we take | |
415 | * the cluster lock here if possible. | |
416 | * | |
417 | * Generally, OCFS2 never trusts the contents of an inode | |
418 | * unless it's holding a cluster lock, so taking it here isn't | |
419 | * a correctness issue as much as it is a performance | |
420 | * improvement. | |
421 | * | |
422 | * There are three times when taking the lock is not a good idea: | |
423 | * | |
424 | * 1) During startup, before we have initialized the DLM. | |
425 | * | |
426 | * 2) If we are reading certain system files which never get | |
427 | * cluster locks (local alloc, truncate log). | |
428 | * | |
429 | * 3) If the process doing the iget() is responsible for | |
430 | * orphan dir recovery. We're holding the orphan dir lock and | |
431 | * can get into a deadlock with another process on another | |
432 | * node in ->delete_inode(). | |
433 | * | |
434 | * #1 and #2 can be simply solved by never taking the lock | |
435 | * here for system files (which are the only type we read | |
436 | * during mount). It's a heavier approach, but our main | |
437 | * concern is user-accesible files anyway. | |
438 | * | |
439 | * #3 works itself out because we'll eventually take the | |
440 | * cluster lock before trusting anything anyway. | |
441 | */ | |
442 | can_lock = !(args->fi_flags & OCFS2_FI_FLAG_SYSFILE) | |
50008630 | 443 | && !(args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) |
c271c5c2 | 444 | && !ocfs2_mount_local(osb); |
24c19ef4 MF |
445 | |
446 | /* | |
447 | * To maintain backwards compatibility with older versions of | |
448 | * ocfs2-tools, we still store the generation value for system | |
449 | * files. The only ones that actually matter to userspace are | |
450 | * the journals, but it's easier and inexpensive to just flag | |
451 | * all system files similarly. | |
452 | */ | |
453 | if (args->fi_flags & OCFS2_FI_FLAG_SYSFILE) | |
454 | generation = osb->fs_generation; | |
455 | ||
e63aecb6 | 456 | ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres, |
24c19ef4 MF |
457 | OCFS2_LOCK_TYPE_META, |
458 | generation, inode); | |
459 | ||
50008630 TY |
460 | ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres, |
461 | OCFS2_LOCK_TYPE_OPEN, | |
462 | 0, inode); | |
463 | ||
24c19ef4 | 464 | if (can_lock) { |
50008630 TY |
465 | status = ocfs2_open_lock(inode); |
466 | if (status) { | |
467 | make_bad_inode(inode); | |
468 | mlog_errno(status); | |
469 | return status; | |
470 | } | |
e63aecb6 | 471 | status = ocfs2_inode_lock(inode, NULL, 0); |
24c19ef4 MF |
472 | if (status) { |
473 | make_bad_inode(inode); | |
474 | mlog_errno(status); | |
475 | return status; | |
476 | } | |
ccd979bd MF |
477 | } |
478 | ||
50008630 TY |
479 | if (args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) { |
480 | status = ocfs2_try_open_lock(inode, 0); | |
481 | if (status) { | |
2bd63216 | 482 | make_bad_inode(inode); |
50008630 TY |
483 | return status; |
484 | } | |
485 | } | |
486 | ||
b657c95c JB |
487 | if (can_lock) { |
488 | status = ocfs2_read_inode_block_full(inode, &bh, | |
489 | OCFS2_BH_IGNORE_CACHE); | |
490 | } else { | |
da1e9098 | 491 | status = ocfs2_read_blocks_sync(osb, args->fi_blkno, 1, &bh); |
b657c95c JB |
492 | if (!status) |
493 | status = ocfs2_validate_inode_block(osb->sb, bh); | |
494 | } | |
ccd979bd MF |
495 | if (status < 0) { |
496 | mlog_errno(status); | |
ccd979bd MF |
497 | goto bail; |
498 | } | |
499 | ||
24c19ef4 | 500 | status = -EINVAL; |
ccd979bd | 501 | fe = (struct ocfs2_dinode *) bh->b_data; |
ccd979bd | 502 | |
24c19ef4 MF |
503 | /* |
504 | * This is a code bug. Right now the caller needs to | |
505 | * understand whether it is asking for a system file inode or | |
506 | * not so the proper lock names can be built. | |
507 | */ | |
508 | mlog_bug_on_msg(!!(fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) != | |
509 | !!(args->fi_flags & OCFS2_FI_FLAG_SYSFILE), | |
510 | "Inode %llu: system file state is ambigous\n", | |
511 | (unsigned long long)args->fi_blkno); | |
ccd979bd MF |
512 | |
513 | if (S_ISCHR(le16_to_cpu(fe->i_mode)) || | |
514 | S_ISBLK(le16_to_cpu(fe->i_mode))) | |
b657c95c | 515 | inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev)); |
ccd979bd | 516 | |
b657c95c | 517 | ocfs2_populate_inode(inode, fe, 0); |
ccd979bd MF |
518 | |
519 | BUG_ON(args->fi_blkno != le64_to_cpu(fe->i_blkno)); | |
520 | ||
ccd979bd MF |
521 | status = 0; |
522 | ||
523 | bail: | |
24c19ef4 | 524 | if (can_lock) |
e63aecb6 | 525 | ocfs2_inode_unlock(inode, 0); |
24c19ef4 MF |
526 | |
527 | if (status < 0) | |
528 | make_bad_inode(inode); | |
529 | ||
ccd979bd MF |
530 | if (args && bh) |
531 | brelse(bh); | |
532 | ||
533 | mlog_exit(status); | |
534 | return status; | |
535 | } | |
536 | ||
537 | void ocfs2_sync_blockdev(struct super_block *sb) | |
538 | { | |
539 | sync_blockdev(sb->s_bdev); | |
540 | } | |
541 | ||
542 | static int ocfs2_truncate_for_delete(struct ocfs2_super *osb, | |
543 | struct inode *inode, | |
544 | struct buffer_head *fe_bh) | |
545 | { | |
546 | int status = 0; | |
ccd979bd MF |
547 | struct ocfs2_truncate_context *tc = NULL; |
548 | struct ocfs2_dinode *fe; | |
60b11392 | 549 | handle_t *handle = NULL; |
ccd979bd MF |
550 | |
551 | mlog_entry_void(); | |
552 | ||
553 | fe = (struct ocfs2_dinode *) fe_bh->b_data; | |
554 | ||
1afc32b9 MF |
555 | /* |
556 | * This check will also skip truncate of inodes with inline | |
557 | * data and fast symlinks. | |
558 | */ | |
3a0782d0 | 559 | if (fe->i_clusters) { |
2b4e30fb JB |
560 | if (ocfs2_should_order_data(inode)) |
561 | ocfs2_begin_ordered_truncate(inode, 0); | |
562 | ||
60b11392 MF |
563 | handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS); |
564 | if (IS_ERR(handle)) { | |
565 | status = PTR_ERR(handle); | |
566 | mlog_errno(status); | |
567 | goto out; | |
568 | } | |
569 | ||
0cf2f763 JB |
570 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), |
571 | fe_bh, | |
13723d00 | 572 | OCFS2_JOURNAL_ACCESS_WRITE); |
60b11392 MF |
573 | if (status < 0) { |
574 | mlog_errno(status); | |
575 | goto out; | |
576 | } | |
577 | ||
578 | i_size_write(inode, 0); | |
579 | ||
580 | status = ocfs2_mark_inode_dirty(handle, inode, fe_bh); | |
581 | if (status < 0) { | |
582 | mlog_errno(status); | |
583 | goto out; | |
584 | } | |
585 | ||
586 | ocfs2_commit_trans(osb, handle); | |
587 | handle = NULL; | |
588 | ||
3a0782d0 MF |
589 | status = ocfs2_prepare_truncate(osb, inode, fe_bh, &tc); |
590 | if (status < 0) { | |
591 | mlog_errno(status); | |
592 | goto out; | |
593 | } | |
ccd979bd | 594 | |
3a0782d0 MF |
595 | status = ocfs2_commit_truncate(osb, inode, fe_bh, tc); |
596 | if (status < 0) { | |
597 | mlog_errno(status); | |
598 | goto out; | |
599 | } | |
ccd979bd | 600 | } |
ccd979bd | 601 | |
60b11392 MF |
602 | out: |
603 | if (handle) | |
604 | ocfs2_commit_trans(osb, handle); | |
ccd979bd MF |
605 | mlog_exit(status); |
606 | return status; | |
607 | } | |
608 | ||
609 | static int ocfs2_remove_inode(struct inode *inode, | |
610 | struct buffer_head *di_bh, | |
611 | struct inode *orphan_dir_inode, | |
612 | struct buffer_head *orphan_dir_bh) | |
613 | { | |
614 | int status; | |
615 | struct inode *inode_alloc_inode = NULL; | |
616 | struct buffer_head *inode_alloc_bh = NULL; | |
1fabe148 | 617 | handle_t *handle; |
ccd979bd MF |
618 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); |
619 | struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data; | |
620 | ||
621 | inode_alloc_inode = | |
622 | ocfs2_get_system_file_inode(osb, INODE_ALLOC_SYSTEM_INODE, | |
623 | le16_to_cpu(di->i_suballoc_slot)); | |
624 | if (!inode_alloc_inode) { | |
625 | status = -EEXIST; | |
626 | mlog_errno(status); | |
627 | goto bail; | |
628 | } | |
629 | ||
1b1dcc1b | 630 | mutex_lock(&inode_alloc_inode->i_mutex); |
e63aecb6 | 631 | status = ocfs2_inode_lock(inode_alloc_inode, &inode_alloc_bh, 1); |
ccd979bd | 632 | if (status < 0) { |
1b1dcc1b | 633 | mutex_unlock(&inode_alloc_inode->i_mutex); |
ccd979bd MF |
634 | |
635 | mlog_errno(status); | |
636 | goto bail; | |
637 | } | |
638 | ||
a90714c1 | 639 | handle = ocfs2_start_trans(osb, OCFS2_DELETE_INODE_CREDITS + |
9b7895ef | 640 | ocfs2_quota_trans_credits(inode->i_sb)); |
ccd979bd MF |
641 | if (IS_ERR(handle)) { |
642 | status = PTR_ERR(handle); | |
643 | mlog_errno(status); | |
644 | goto bail_unlock; | |
645 | } | |
646 | ||
647 | status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode, | |
648 | orphan_dir_bh); | |
649 | if (status < 0) { | |
650 | mlog_errno(status); | |
651 | goto bail_commit; | |
652 | } | |
653 | ||
654 | /* set the inodes dtime */ | |
0cf2f763 | 655 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh, |
13723d00 | 656 | OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bd MF |
657 | if (status < 0) { |
658 | mlog_errno(status); | |
659 | goto bail_commit; | |
660 | } | |
661 | ||
662 | di->i_dtime = cpu_to_le64(CURRENT_TIME.tv_sec); | |
4092d49f | 663 | di->i_flags &= cpu_to_le32(~(OCFS2_VALID_FL | OCFS2_ORPHANED_FL)); |
ec20cec7 | 664 | ocfs2_journal_dirty(handle, di_bh); |
ccd979bd | 665 | |
8cb471e8 | 666 | ocfs2_remove_from_cache(INODE_CACHE(inode), di_bh); |
63936dda | 667 | dquot_free_inode(inode); |
ccd979bd MF |
668 | |
669 | status = ocfs2_free_dinode(handle, inode_alloc_inode, | |
670 | inode_alloc_bh, di); | |
671 | if (status < 0) | |
672 | mlog_errno(status); | |
673 | ||
674 | bail_commit: | |
02dc1af4 | 675 | ocfs2_commit_trans(osb, handle); |
ccd979bd | 676 | bail_unlock: |
e63aecb6 | 677 | ocfs2_inode_unlock(inode_alloc_inode, 1); |
1b1dcc1b | 678 | mutex_unlock(&inode_alloc_inode->i_mutex); |
ccd979bd MF |
679 | brelse(inode_alloc_bh); |
680 | bail: | |
681 | iput(inode_alloc_inode); | |
682 | ||
683 | return status; | |
684 | } | |
685 | ||
2bd63216 | 686 | /* |
b4df6ed8 MF |
687 | * Serialize with orphan dir recovery. If the process doing |
688 | * recovery on this orphan dir does an iget() with the dir | |
689 | * i_mutex held, we'll deadlock here. Instead we detect this | |
690 | * and exit early - recovery will wipe this inode for us. | |
691 | */ | |
692 | static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb, | |
693 | int slot) | |
694 | { | |
695 | int ret = 0; | |
696 | ||
697 | spin_lock(&osb->osb_lock); | |
698 | if (ocfs2_node_map_test_bit(osb, &osb->osb_recovering_orphan_dirs, slot)) { | |
699 | mlog(0, "Recovery is happening on orphan dir %d, will skip " | |
700 | "this inode\n", slot); | |
701 | ret = -EDEADLK; | |
702 | goto out; | |
703 | } | |
704 | /* This signals to the orphan recovery process that it should | |
705 | * wait for us to handle the wipe. */ | |
706 | osb->osb_orphan_wipes[slot]++; | |
707 | out: | |
708 | spin_unlock(&osb->osb_lock); | |
709 | return ret; | |
710 | } | |
711 | ||
712 | static void ocfs2_signal_wipe_completion(struct ocfs2_super *osb, | |
713 | int slot) | |
714 | { | |
715 | spin_lock(&osb->osb_lock); | |
716 | osb->osb_orphan_wipes[slot]--; | |
717 | spin_unlock(&osb->osb_lock); | |
718 | ||
719 | wake_up(&osb->osb_wipe_event); | |
720 | } | |
721 | ||
ccd979bd MF |
722 | static int ocfs2_wipe_inode(struct inode *inode, |
723 | struct buffer_head *di_bh) | |
724 | { | |
725 | int status, orphaned_slot; | |
726 | struct inode *orphan_dir_inode = NULL; | |
727 | struct buffer_head *orphan_dir_bh = NULL; | |
728 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); | |
50008630 | 729 | struct ocfs2_dinode *di; |
ccd979bd | 730 | |
50008630 TY |
731 | di = (struct ocfs2_dinode *) di_bh->b_data; |
732 | orphaned_slot = le16_to_cpu(di->i_orphaned_slot); | |
b4df6ed8 MF |
733 | |
734 | status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot); | |
735 | if (status) | |
736 | return status; | |
737 | ||
ccd979bd MF |
738 | orphan_dir_inode = ocfs2_get_system_file_inode(osb, |
739 | ORPHAN_DIR_SYSTEM_INODE, | |
740 | orphaned_slot); | |
741 | if (!orphan_dir_inode) { | |
742 | status = -EEXIST; | |
743 | mlog_errno(status); | |
744 | goto bail; | |
745 | } | |
746 | ||
747 | /* Lock the orphan dir. The lock will be held for the entire | |
748 | * delete_inode operation. We do this now to avoid races with | |
749 | * recovery completion on other nodes. */ | |
1b1dcc1b | 750 | mutex_lock(&orphan_dir_inode->i_mutex); |
e63aecb6 | 751 | status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); |
ccd979bd | 752 | if (status < 0) { |
1b1dcc1b | 753 | mutex_unlock(&orphan_dir_inode->i_mutex); |
ccd979bd MF |
754 | |
755 | mlog_errno(status); | |
756 | goto bail; | |
757 | } | |
758 | ||
759 | /* we do this while holding the orphan dir lock because we | |
34d024f8 MF |
760 | * don't want recovery being run from another node to try an |
761 | * inode delete underneath us -- this will result in two nodes | |
ccd979bd MF |
762 | * truncating the same file! */ |
763 | status = ocfs2_truncate_for_delete(osb, inode, di_bh); | |
764 | if (status < 0) { | |
765 | mlog_errno(status); | |
766 | goto bail_unlock_dir; | |
767 | } | |
768 | ||
9b7895ef MF |
769 | /* Remove any dir index tree */ |
770 | if (S_ISDIR(inode->i_mode)) { | |
771 | status = ocfs2_dx_dir_truncate(inode, di_bh); | |
772 | if (status) { | |
773 | mlog_errno(status); | |
774 | goto bail_unlock_dir; | |
775 | } | |
776 | } | |
777 | ||
cf1d6c76 TY |
778 | /*Free extended attribute resources associated with this inode.*/ |
779 | status = ocfs2_xattr_remove(inode, di_bh); | |
780 | if (status < 0) { | |
781 | mlog_errno(status); | |
782 | goto bail_unlock_dir; | |
783 | } | |
784 | ||
8b2c0dba TM |
785 | status = ocfs2_remove_refcount_tree(inode, di_bh); |
786 | if (status < 0) { | |
787 | mlog_errno(status); | |
788 | goto bail_unlock_dir; | |
789 | } | |
790 | ||
ccd979bd MF |
791 | status = ocfs2_remove_inode(inode, di_bh, orphan_dir_inode, |
792 | orphan_dir_bh); | |
793 | if (status < 0) | |
794 | mlog_errno(status); | |
795 | ||
796 | bail_unlock_dir: | |
e63aecb6 | 797 | ocfs2_inode_unlock(orphan_dir_inode, 1); |
1b1dcc1b | 798 | mutex_unlock(&orphan_dir_inode->i_mutex); |
ccd979bd MF |
799 | brelse(orphan_dir_bh); |
800 | bail: | |
801 | iput(orphan_dir_inode); | |
b4df6ed8 | 802 | ocfs2_signal_wipe_completion(osb, orphaned_slot); |
ccd979bd MF |
803 | |
804 | return status; | |
805 | } | |
806 | ||
807 | /* There is a series of simple checks that should be done before a | |
34d024f8 | 808 | * trylock is even considered. Encapsulate those in this function. */ |
ccd979bd MF |
809 | static int ocfs2_inode_is_valid_to_delete(struct inode *inode) |
810 | { | |
811 | int ret = 0; | |
812 | struct ocfs2_inode_info *oi = OCFS2_I(inode); | |
813 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); | |
814 | ||
815 | /* We shouldn't be getting here for the root directory | |
816 | * inode.. */ | |
817 | if (inode == osb->root_inode) { | |
818 | mlog(ML_ERROR, "Skipping delete of root inode.\n"); | |
819 | goto bail; | |
820 | } | |
821 | ||
34d024f8 | 822 | /* If we're coming from downconvert_thread we can't go into our own |
ccd979bd MF |
823 | * voting [hello, deadlock city!], so unforuntately we just |
824 | * have to skip deleting this guy. That's OK though because | |
825 | * the node who's doing the actual deleting should handle it | |
826 | * anyway. */ | |
34d024f8 | 827 | if (current == osb->dc_task) { |
ccd979bd | 828 | mlog(0, "Skipping delete of %lu because we're currently " |
34d024f8 | 829 | "in downconvert\n", inode->i_ino); |
ccd979bd MF |
830 | goto bail; |
831 | } | |
832 | ||
833 | spin_lock(&oi->ip_lock); | |
834 | /* OCFS2 *never* deletes system files. This should technically | |
835 | * never get here as system file inodes should always have a | |
836 | * positive link count. */ | |
837 | if (oi->ip_flags & OCFS2_INODE_SYSTEM_FILE) { | |
b0697053 MF |
838 | mlog(ML_ERROR, "Skipping delete of system file %llu\n", |
839 | (unsigned long long)oi->ip_blkno); | |
ccd979bd MF |
840 | goto bail_unlock; |
841 | } | |
842 | ||
34d024f8 MF |
843 | /* If we have allowd wipe of this inode for another node, it |
844 | * will be marked here so we can safely skip it. Recovery will | |
845 | * cleanup any inodes we might inadvertantly skip here. */ | |
ccd979bd MF |
846 | if (oi->ip_flags & OCFS2_INODE_SKIP_DELETE) { |
847 | mlog(0, "Skipping delete of %lu because another node " | |
848 | "has done this for us.\n", inode->i_ino); | |
849 | goto bail_unlock; | |
850 | } | |
851 | ||
852 | ret = 1; | |
853 | bail_unlock: | |
854 | spin_unlock(&oi->ip_lock); | |
855 | bail: | |
856 | return ret; | |
857 | } | |
858 | ||
859 | /* Query the cluster to determine whether we should wipe an inode from | |
860 | * disk or not. | |
861 | * | |
862 | * Requires the inode to have the cluster lock. */ | |
863 | static int ocfs2_query_inode_wipe(struct inode *inode, | |
864 | struct buffer_head *di_bh, | |
865 | int *wipe) | |
866 | { | |
867 | int status = 0; | |
868 | struct ocfs2_inode_info *oi = OCFS2_I(inode); | |
869 | struct ocfs2_dinode *di; | |
870 | ||
871 | *wipe = 0; | |
872 | ||
873 | /* While we were waiting for the cluster lock in | |
874 | * ocfs2_delete_inode, another node might have asked to delete | |
875 | * the inode. Recheck our flags to catch this. */ | |
876 | if (!ocfs2_inode_is_valid_to_delete(inode)) { | |
b0697053 MF |
877 | mlog(0, "Skipping delete of %llu because flags changed\n", |
878 | (unsigned long long)oi->ip_blkno); | |
ccd979bd MF |
879 | goto bail; |
880 | } | |
881 | ||
882 | /* Now that we have an up to date inode, we can double check | |
883 | * the link count. */ | |
884 | if (inode->i_nlink) { | |
b0697053 MF |
885 | mlog(0, "Skipping delete of %llu because nlink = %u\n", |
886 | (unsigned long long)oi->ip_blkno, inode->i_nlink); | |
ccd979bd MF |
887 | goto bail; |
888 | } | |
889 | ||
890 | /* Do some basic inode verification... */ | |
891 | di = (struct ocfs2_dinode *) di_bh->b_data; | |
892 | if (!(di->i_flags & cpu_to_le32(OCFS2_ORPHANED_FL))) { | |
893 | /* for lack of a better error? */ | |
894 | status = -EEXIST; | |
895 | mlog(ML_ERROR, | |
b0697053 | 896 | "Inode %llu (on-disk %llu) not orphaned! " |
ccd979bd | 897 | "Disk flags 0x%x, inode flags 0x%x\n", |
b0697053 | 898 | (unsigned long long)oi->ip_blkno, |
1ca1a111 MF |
899 | (unsigned long long)le64_to_cpu(di->i_blkno), |
900 | le32_to_cpu(di->i_flags), oi->ip_flags); | |
ccd979bd MF |
901 | goto bail; |
902 | } | |
903 | ||
904 | /* has someone already deleted us?! baaad... */ | |
905 | if (di->i_dtime) { | |
906 | status = -EEXIST; | |
907 | mlog_errno(status); | |
908 | goto bail; | |
909 | } | |
910 | ||
6f16bf65 MF |
911 | /* |
912 | * This is how ocfs2 determines whether an inode is still live | |
913 | * within the cluster. Every node takes a shared read lock on | |
914 | * the inode open lock in ocfs2_read_locked_inode(). When we | |
915 | * get to ->delete_inode(), each node tries to convert it's | |
916 | * lock to an exclusive. Trylocks are serialized by the inode | |
917 | * meta data lock. If the upconvert suceeds, we know the inode | |
918 | * is no longer live and can be deleted. | |
919 | * | |
920 | * Though we call this with the meta data lock held, the | |
921 | * trylock keeps us from ABBA deadlock. | |
922 | */ | |
923 | status = ocfs2_try_open_lock(inode, 1); | |
50008630 | 924 | if (status == -EAGAIN) { |
ccd979bd | 925 | status = 0; |
2759236f | 926 | mlog(0, "Skipping delete of %llu because it is in use on " |
b0697053 | 927 | "other nodes\n", (unsigned long long)oi->ip_blkno); |
ccd979bd MF |
928 | goto bail; |
929 | } | |
930 | if (status < 0) { | |
931 | mlog_errno(status); | |
932 | goto bail; | |
933 | } | |
934 | ||
50008630 TY |
935 | *wipe = 1; |
936 | mlog(0, "Inode %llu is ok to wipe from orphan dir %u\n", | |
937 | (unsigned long long)oi->ip_blkno, | |
938 | le16_to_cpu(di->i_orphaned_slot)); | |
ccd979bd MF |
939 | |
940 | bail: | |
941 | return status; | |
942 | } | |
943 | ||
944 | /* Support function for ocfs2_delete_inode. Will help us keep the | |
945 | * inode data in a consistent state for clear_inode. Always truncates | |
946 | * pages, optionally sync's them first. */ | |
947 | static void ocfs2_cleanup_delete_inode(struct inode *inode, | |
948 | int sync_data) | |
949 | { | |
b0697053 MF |
950 | mlog(0, "Cleanup inode %llu, sync = %d\n", |
951 | (unsigned long long)OCFS2_I(inode)->ip_blkno, sync_data); | |
ccd979bd MF |
952 | if (sync_data) |
953 | write_inode_now(inode, 1); | |
954 | truncate_inode_pages(&inode->i_data, 0); | |
955 | } | |
956 | ||
957 | void ocfs2_delete_inode(struct inode *inode) | |
958 | { | |
959 | int wipe, status; | |
e4b963f1 | 960 | sigset_t oldset; |
ccd979bd MF |
961 | struct buffer_head *di_bh = NULL; |
962 | ||
963 | mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino); | |
964 | ||
a90714c1 JK |
965 | /* When we fail in read_inode() we mark inode as bad. The second test |
966 | * catches the case when inode allocation fails before allocating | |
967 | * a block for inode. */ | |
968 | if (is_bad_inode(inode) || !OCFS2_I(inode)->ip_blkno) { | |
ccd979bd MF |
969 | mlog(0, "Skipping delete of bad inode\n"); |
970 | goto bail; | |
971 | } | |
972 | ||
871a2931 | 973 | dquot_initialize(inode); |
907f4554 | 974 | |
ccd979bd MF |
975 | if (!ocfs2_inode_is_valid_to_delete(inode)) { |
976 | /* It's probably not necessary to truncate_inode_pages | |
977 | * here but we do it for safety anyway (it will most | |
978 | * likely be a no-op anyway) */ | |
979 | ocfs2_cleanup_delete_inode(inode, 0); | |
980 | goto bail; | |
981 | } | |
982 | ||
983 | /* We want to block signals in delete_inode as the lock and | |
984 | * messaging paths may return us -ERESTARTSYS. Which would | |
985 | * cause us to exit early, resulting in inodes being orphaned | |
986 | * forever. */ | |
e4b963f1 | 987 | ocfs2_block_signals(&oldset); |
ccd979bd | 988 | |
6ca497a8 | 989 | /* |
990 | * Synchronize us against ocfs2_get_dentry. We take this in | |
991 | * shared mode so that all nodes can still concurrently | |
992 | * process deletes. | |
993 | */ | |
994 | status = ocfs2_nfs_sync_lock(OCFS2_SB(inode->i_sb), 0); | |
995 | if (status < 0) { | |
996 | mlog(ML_ERROR, "getting nfs sync lock(PR) failed %d\n", status); | |
997 | ocfs2_cleanup_delete_inode(inode, 0); | |
998 | goto bail_unblock; | |
999 | } | |
ccd979bd MF |
1000 | /* Lock down the inode. This gives us an up to date view of |
1001 | * it's metadata (for verification), and allows us to | |
34d024f8 | 1002 | * serialize delete_inode on multiple nodes. |
ccd979bd MF |
1003 | * |
1004 | * Even though we might be doing a truncate, we don't take the | |
1005 | * allocation lock here as it won't be needed - nobody will | |
1006 | * have the file open. | |
1007 | */ | |
e63aecb6 | 1008 | status = ocfs2_inode_lock(inode, &di_bh, 1); |
ccd979bd MF |
1009 | if (status < 0) { |
1010 | if (status != -ENOENT) | |
1011 | mlog_errno(status); | |
1012 | ocfs2_cleanup_delete_inode(inode, 0); | |
6ca497a8 | 1013 | goto bail_unlock_nfs_sync; |
ccd979bd MF |
1014 | } |
1015 | ||
1016 | /* Query the cluster. This will be the final decision made | |
1017 | * before we go ahead and wipe the inode. */ | |
1018 | status = ocfs2_query_inode_wipe(inode, di_bh, &wipe); | |
1019 | if (!wipe || status < 0) { | |
34d024f8 | 1020 | /* Error and remote inode busy both mean we won't be |
ccd979bd MF |
1021 | * removing the inode, so they take almost the same |
1022 | * path. */ | |
1023 | if (status < 0) | |
1024 | mlog_errno(status); | |
1025 | ||
34d024f8 MF |
1026 | /* Someone in the cluster has disallowed a wipe of |
1027 | * this inode, or it was never completely | |
1028 | * orphaned. Write out the pages and exit now. */ | |
ccd979bd MF |
1029 | ocfs2_cleanup_delete_inode(inode, 1); |
1030 | goto bail_unlock_inode; | |
1031 | } | |
1032 | ||
1033 | ocfs2_cleanup_delete_inode(inode, 0); | |
1034 | ||
1035 | status = ocfs2_wipe_inode(inode, di_bh); | |
1036 | if (status < 0) { | |
b4df6ed8 MF |
1037 | if (status != -EDEADLK) |
1038 | mlog_errno(status); | |
ccd979bd MF |
1039 | goto bail_unlock_inode; |
1040 | } | |
1041 | ||
24c19ef4 MF |
1042 | /* |
1043 | * Mark the inode as successfully deleted. | |
1044 | * | |
1045 | * This is important for ocfs2_clear_inode() as it will check | |
1046 | * this flag and skip any checkpointing work | |
1047 | * | |
1048 | * ocfs2_stuff_meta_lvb() also uses this flag to invalidate | |
1049 | * the LVB for other nodes. | |
1050 | */ | |
ccd979bd MF |
1051 | OCFS2_I(inode)->ip_flags |= OCFS2_INODE_DELETED; |
1052 | ||
1053 | bail_unlock_inode: | |
e63aecb6 | 1054 | ocfs2_inode_unlock(inode, 1); |
ccd979bd | 1055 | brelse(di_bh); |
6ca497a8 | 1056 | |
1057 | bail_unlock_nfs_sync: | |
1058 | ocfs2_nfs_sync_unlock(OCFS2_SB(inode->i_sb), 0); | |
1059 | ||
ccd979bd | 1060 | bail_unblock: |
e4b963f1 | 1061 | ocfs2_unblock_signals(&oldset); |
ccd979bd MF |
1062 | bail: |
1063 | clear_inode(inode); | |
1064 | mlog_exit_void(); | |
1065 | } | |
1066 | ||
1067 | void ocfs2_clear_inode(struct inode *inode) | |
1068 | { | |
1069 | int status; | |
1070 | struct ocfs2_inode_info *oi = OCFS2_I(inode); | |
1071 | ||
1072 | mlog_entry_void(); | |
1073 | ||
1074 | if (!inode) | |
1075 | goto bail; | |
1076 | ||
b0697053 MF |
1077 | mlog(0, "Clearing inode: %llu, nlink = %u\n", |
1078 | (unsigned long long)OCFS2_I(inode)->ip_blkno, inode->i_nlink); | |
ccd979bd MF |
1079 | |
1080 | mlog_bug_on_msg(OCFS2_SB(inode->i_sb) == NULL, | |
1081 | "Inode=%lu\n", inode->i_ino); | |
1082 | ||
9f754758 | 1083 | dquot_drop(inode); |
257ba15c | 1084 | |
34d024f8 MF |
1085 | /* To preven remote deletes we hold open lock before, now it |
1086 | * is time to unlock PR and EX open locks. */ | |
50008630 TY |
1087 | ocfs2_open_unlock(inode); |
1088 | ||
ccd979bd | 1089 | /* Do these before all the other work so that we don't bounce |
34d024f8 | 1090 | * the downconvert thread while waiting to destroy the locks. */ |
ccd979bd | 1091 | ocfs2_mark_lockres_freeing(&oi->ip_rw_lockres); |
e63aecb6 | 1092 | ocfs2_mark_lockres_freeing(&oi->ip_inode_lockres); |
50008630 | 1093 | ocfs2_mark_lockres_freeing(&oi->ip_open_lockres); |
ccd979bd | 1094 | |
4fe370af MF |
1095 | ocfs2_resv_discard(&OCFS2_SB(inode->i_sb)->osb_la_resmap, |
1096 | &oi->ip_la_data_resv); | |
1097 | ocfs2_resv_init_once(&oi->ip_la_data_resv); | |
1098 | ||
ccd979bd MF |
1099 | /* We very well may get a clear_inode before all an inodes |
1100 | * metadata has hit disk. Of course, we can't drop any cluster | |
1101 | * locks until the journal has finished with it. The only | |
1102 | * exception here are successfully wiped inodes - their | |
1103 | * metadata can now be considered to be part of the system | |
1104 | * inodes from which it came. */ | |
1105 | if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED)) | |
1106 | ocfs2_checkpoint_inode(inode); | |
1107 | ||
1108 | mlog_bug_on_msg(!list_empty(&oi->ip_io_markers), | |
b0697053 MF |
1109 | "Clear inode of %llu, inode has io markers\n", |
1110 | (unsigned long long)oi->ip_blkno); | |
ccd979bd | 1111 | |
83418978 MF |
1112 | ocfs2_extent_map_trunc(inode, 0); |
1113 | ||
ccd979bd MF |
1114 | status = ocfs2_drop_inode_locks(inode); |
1115 | if (status < 0) | |
1116 | mlog_errno(status); | |
1117 | ||
1118 | ocfs2_lock_res_free(&oi->ip_rw_lockres); | |
e63aecb6 | 1119 | ocfs2_lock_res_free(&oi->ip_inode_lockres); |
50008630 | 1120 | ocfs2_lock_res_free(&oi->ip_open_lockres); |
ccd979bd | 1121 | |
66fb345d | 1122 | ocfs2_metadata_cache_exit(INODE_CACHE(inode)); |
ccd979bd | 1123 | |
8cb471e8 | 1124 | mlog_bug_on_msg(INODE_CACHE(inode)->ci_num_cached, |
b0697053 | 1125 | "Clear inode of %llu, inode has %u cache items\n", |
8cb471e8 JB |
1126 | (unsigned long long)oi->ip_blkno, |
1127 | INODE_CACHE(inode)->ci_num_cached); | |
ccd979bd | 1128 | |
8cb471e8 | 1129 | mlog_bug_on_msg(!(INODE_CACHE(inode)->ci_flags & OCFS2_CACHE_FL_INLINE), |
b0697053 MF |
1130 | "Clear inode of %llu, inode has a bad flag\n", |
1131 | (unsigned long long)oi->ip_blkno); | |
ccd979bd MF |
1132 | |
1133 | mlog_bug_on_msg(spin_is_locked(&oi->ip_lock), | |
b0697053 MF |
1134 | "Clear inode of %llu, inode is locked\n", |
1135 | (unsigned long long)oi->ip_blkno); | |
ccd979bd | 1136 | |
251b6ecc | 1137 | mlog_bug_on_msg(!mutex_trylock(&oi->ip_io_mutex), |
b0697053 MF |
1138 | "Clear inode of %llu, io_mutex is locked\n", |
1139 | (unsigned long long)oi->ip_blkno); | |
251b6ecc | 1140 | mutex_unlock(&oi->ip_io_mutex); |
ccd979bd MF |
1141 | |
1142 | /* | |
1143 | * down_trylock() returns 0, down_write_trylock() returns 1 | |
1144 | * kernel 1, world 0 | |
1145 | */ | |
1146 | mlog_bug_on_msg(!down_write_trylock(&oi->ip_alloc_sem), | |
b0697053 MF |
1147 | "Clear inode of %llu, alloc_sem is locked\n", |
1148 | (unsigned long long)oi->ip_blkno); | |
ccd979bd MF |
1149 | up_write(&oi->ip_alloc_sem); |
1150 | ||
1151 | mlog_bug_on_msg(oi->ip_open_count, | |
b0697053 MF |
1152 | "Clear inode of %llu has open count %d\n", |
1153 | (unsigned long long)oi->ip_blkno, oi->ip_open_count); | |
ccd979bd MF |
1154 | |
1155 | /* Clear all other flags. */ | |
47460d65 | 1156 | oi->ip_flags = 0; |
ccd979bd MF |
1157 | oi->ip_dir_start_lookup = 0; |
1158 | oi->ip_blkno = 0ULL; | |
ae0dff68 SM |
1159 | |
1160 | /* | |
1161 | * ip_jinode is used to track txns against this inode. We ensure that | |
1162 | * the journal is flushed before journal shutdown. Thus it is safe to | |
1163 | * have inodes get cleaned up after journal shutdown. | |
1164 | */ | |
2b4e30fb JB |
1165 | jbd2_journal_release_jbd_inode(OCFS2_SB(inode->i_sb)->journal->j_journal, |
1166 | &oi->ip_jinode); | |
ccd979bd MF |
1167 | |
1168 | bail: | |
1169 | mlog_exit_void(); | |
1170 | } | |
1171 | ||
1172 | /* Called under inode_lock, with no more references on the | |
1173 | * struct inode, so it's safe here to check the flags field | |
1174 | * and to manipulate i_nlink without any other locks. */ | |
1175 | void ocfs2_drop_inode(struct inode *inode) | |
1176 | { | |
1177 | struct ocfs2_inode_info *oi = OCFS2_I(inode); | |
1178 | ||
1179 | mlog_entry_void(); | |
1180 | ||
b0697053 MF |
1181 | mlog(0, "Drop inode %llu, nlink = %u, ip_flags = 0x%x\n", |
1182 | (unsigned long long)oi->ip_blkno, inode->i_nlink, oi->ip_flags); | |
ccd979bd | 1183 | |
379dfe9d MF |
1184 | if (oi->ip_flags & OCFS2_INODE_MAYBE_ORPHANED) |
1185 | generic_delete_inode(inode); | |
1186 | else | |
1187 | generic_drop_inode(inode); | |
ccd979bd MF |
1188 | |
1189 | mlog_exit_void(); | |
1190 | } | |
1191 | ||
ccd979bd MF |
1192 | /* |
1193 | * This is called from our getattr. | |
1194 | */ | |
1195 | int ocfs2_inode_revalidate(struct dentry *dentry) | |
1196 | { | |
1197 | struct inode *inode = dentry->d_inode; | |
1198 | int status = 0; | |
1199 | ||
b0697053 MF |
1200 | mlog_entry("(inode = 0x%p, ino = %llu)\n", inode, |
1201 | inode ? (unsigned long long)OCFS2_I(inode)->ip_blkno : 0ULL); | |
ccd979bd MF |
1202 | |
1203 | if (!inode) { | |
1204 | mlog(0, "eep, no inode!\n"); | |
1205 | status = -ENOENT; | |
1206 | goto bail; | |
1207 | } | |
1208 | ||
1209 | spin_lock(&OCFS2_I(inode)->ip_lock); | |
1210 | if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) { | |
1211 | spin_unlock(&OCFS2_I(inode)->ip_lock); | |
1212 | mlog(0, "inode deleted!\n"); | |
1213 | status = -ENOENT; | |
1214 | goto bail; | |
1215 | } | |
1216 | spin_unlock(&OCFS2_I(inode)->ip_lock); | |
1217 | ||
e63aecb6 | 1218 | /* Let ocfs2_inode_lock do the work of updating our struct |
ccd979bd | 1219 | * inode for us. */ |
e63aecb6 | 1220 | status = ocfs2_inode_lock(inode, NULL, 0); |
ccd979bd MF |
1221 | if (status < 0) { |
1222 | if (status != -ENOENT) | |
1223 | mlog_errno(status); | |
1224 | goto bail; | |
1225 | } | |
e63aecb6 | 1226 | ocfs2_inode_unlock(inode, 0); |
ccd979bd MF |
1227 | bail: |
1228 | mlog_exit(status); | |
1229 | ||
1230 | return status; | |
1231 | } | |
1232 | ||
1233 | /* | |
1234 | * Updates a disk inode from a | |
1235 | * struct inode. | |
1236 | * Only takes ip_lock. | |
1237 | */ | |
1fabe148 | 1238 | int ocfs2_mark_inode_dirty(handle_t *handle, |
ccd979bd MF |
1239 | struct inode *inode, |
1240 | struct buffer_head *bh) | |
1241 | { | |
1242 | int status; | |
1243 | struct ocfs2_dinode *fe = (struct ocfs2_dinode *) bh->b_data; | |
1244 | ||
b0697053 MF |
1245 | mlog_entry("(inode %llu)\n", |
1246 | (unsigned long long)OCFS2_I(inode)->ip_blkno); | |
ccd979bd | 1247 | |
0cf2f763 | 1248 | status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), bh, |
13723d00 | 1249 | OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bd MF |
1250 | if (status < 0) { |
1251 | mlog_errno(status); | |
1252 | goto leave; | |
1253 | } | |
1254 | ||
1255 | spin_lock(&OCFS2_I(inode)->ip_lock); | |
1256 | fe->i_clusters = cpu_to_le32(OCFS2_I(inode)->ip_clusters); | |
6e4b0d56 | 1257 | ocfs2_get_inode_flags(OCFS2_I(inode)); |
ca4d147e | 1258 | fe->i_attr = cpu_to_le32(OCFS2_I(inode)->ip_attr); |
15b1e36b | 1259 | fe->i_dyn_features = cpu_to_le16(OCFS2_I(inode)->ip_dyn_features); |
ccd979bd MF |
1260 | spin_unlock(&OCFS2_I(inode)->ip_lock); |
1261 | ||
1262 | fe->i_size = cpu_to_le64(i_size_read(inode)); | |
198a1ca3 | 1263 | ocfs2_set_links_count(fe, inode->i_nlink); |
ccd979bd MF |
1264 | fe->i_uid = cpu_to_le32(inode->i_uid); |
1265 | fe->i_gid = cpu_to_le32(inode->i_gid); | |
1266 | fe->i_mode = cpu_to_le16(inode->i_mode); | |
1267 | fe->i_atime = cpu_to_le64(inode->i_atime.tv_sec); | |
1268 | fe->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); | |
1269 | fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); | |
1270 | fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); | |
1271 | fe->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); | |
1272 | fe->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); | |
1273 | ||
ec20cec7 | 1274 | ocfs2_journal_dirty(handle, bh); |
ccd979bd | 1275 | leave: |
ccd979bd MF |
1276 | mlog_exit(status); |
1277 | return status; | |
1278 | } | |
1279 | ||
1280 | /* | |
1281 | * | |
1282 | * Updates a struct inode from a disk inode. | |
1283 | * does no i/o, only takes ip_lock. | |
1284 | */ | |
1285 | void ocfs2_refresh_inode(struct inode *inode, | |
1286 | struct ocfs2_dinode *fe) | |
1287 | { | |
ccd979bd MF |
1288 | spin_lock(&OCFS2_I(inode)->ip_lock); |
1289 | ||
1290 | OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); | |
ca4d147e | 1291 | OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr); |
15b1e36b | 1292 | OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features); |
ca4d147e | 1293 | ocfs2_set_inode_flags(inode); |
ccd979bd | 1294 | i_size_write(inode, le64_to_cpu(fe->i_size)); |
198a1ca3 | 1295 | inode->i_nlink = ocfs2_read_links_count(fe); |
ccd979bd MF |
1296 | inode->i_uid = le32_to_cpu(fe->i_uid); |
1297 | inode->i_gid = le32_to_cpu(fe->i_gid); | |
1298 | inode->i_mode = le16_to_cpu(fe->i_mode); | |
ccd979bd MF |
1299 | if (S_ISLNK(inode->i_mode) && le32_to_cpu(fe->i_clusters) == 0) |
1300 | inode->i_blocks = 0; | |
1301 | else | |
8110b073 | 1302 | inode->i_blocks = ocfs2_inode_sector_count(inode); |
ccd979bd MF |
1303 | inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime); |
1304 | inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec); | |
1305 | inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime); | |
1306 | inode->i_mtime.tv_nsec = le32_to_cpu(fe->i_mtime_nsec); | |
1307 | inode->i_ctime.tv_sec = le64_to_cpu(fe->i_ctime); | |
1308 | inode->i_ctime.tv_nsec = le32_to_cpu(fe->i_ctime_nsec); | |
1309 | ||
1310 | spin_unlock(&OCFS2_I(inode)->ip_lock); | |
1311 | } | |
b657c95c JB |
1312 | |
1313 | int ocfs2_validate_inode_block(struct super_block *sb, | |
1314 | struct buffer_head *bh) | |
1315 | { | |
d6b32bbb | 1316 | int rc; |
b657c95c JB |
1317 | struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; |
1318 | ||
970e4936 JB |
1319 | mlog(0, "Validating dinode %llu\n", |
1320 | (unsigned long long)bh->b_blocknr); | |
1321 | ||
b657c95c JB |
1322 | BUG_ON(!buffer_uptodate(bh)); |
1323 | ||
d6b32bbb JB |
1324 | /* |
1325 | * If the ecc fails, we return the error but otherwise | |
1326 | * leave the filesystem running. We know any error is | |
1327 | * local to this block. | |
1328 | */ | |
1329 | rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check); | |
13723d00 JB |
1330 | if (rc) { |
1331 | mlog(ML_ERROR, "Checksum failed for dinode %llu\n", | |
1332 | (unsigned long long)bh->b_blocknr); | |
d6b32bbb | 1333 | goto bail; |
13723d00 | 1334 | } |
d6b32bbb JB |
1335 | |
1336 | /* | |
1337 | * Errors after here are fatal. | |
1338 | */ | |
1339 | ||
1340 | rc = -EINVAL; | |
1341 | ||
b657c95c JB |
1342 | if (!OCFS2_IS_VALID_DINODE(di)) { |
1343 | ocfs2_error(sb, "Invalid dinode #%llu: signature = %.*s\n", | |
1344 | (unsigned long long)bh->b_blocknr, 7, | |
1345 | di->i_signature); | |
1346 | goto bail; | |
1347 | } | |
1348 | ||
1349 | if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) { | |
1350 | ocfs2_error(sb, "Invalid dinode #%llu: i_blkno is %llu\n", | |
1351 | (unsigned long long)bh->b_blocknr, | |
1352 | (unsigned long long)le64_to_cpu(di->i_blkno)); | |
1353 | goto bail; | |
1354 | } | |
1355 | ||
1356 | if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) { | |
1357 | ocfs2_error(sb, | |
1358 | "Invalid dinode #%llu: OCFS2_VALID_FL not set\n", | |
1359 | (unsigned long long)bh->b_blocknr); | |
1360 | goto bail; | |
1361 | } | |
1362 | ||
1363 | if (le32_to_cpu(di->i_fs_generation) != | |
1364 | OCFS2_SB(sb)->fs_generation) { | |
1365 | ocfs2_error(sb, | |
1366 | "Invalid dinode #%llu: fs_generation is %u\n", | |
1367 | (unsigned long long)bh->b_blocknr, | |
1368 | le32_to_cpu(di->i_fs_generation)); | |
1369 | goto bail; | |
1370 | } | |
1371 | ||
1372 | rc = 0; | |
1373 | ||
1374 | bail: | |
1375 | return rc; | |
1376 | } | |
1377 | ||
1378 | int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh, | |
1379 | int flags) | |
1380 | { | |
1381 | int rc; | |
1382 | struct buffer_head *tmp = *bh; | |
1383 | ||
8cb471e8 JB |
1384 | rc = ocfs2_read_blocks(INODE_CACHE(inode), OCFS2_I(inode)->ip_blkno, |
1385 | 1, &tmp, flags, ocfs2_validate_inode_block); | |
b657c95c JB |
1386 | |
1387 | /* If ocfs2_read_blocks() got us a new bh, pass it up. */ | |
970e4936 | 1388 | if (!rc && !*bh) |
b657c95c JB |
1389 | *bh = tmp; |
1390 | ||
b657c95c JB |
1391 | return rc; |
1392 | } | |
1393 | ||
1394 | int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh) | |
1395 | { | |
1396 | return ocfs2_read_inode_block_full(inode, bh, 0); | |
1397 | } | |
6e5a3d75 | 1398 | |
6e5a3d75 JB |
1399 | |
1400 | static u64 ocfs2_inode_cache_owner(struct ocfs2_caching_info *ci) | |
1401 | { | |
1402 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1403 | ||
1404 | return oi->ip_blkno; | |
1405 | } | |
1406 | ||
8cb471e8 JB |
1407 | static struct super_block *ocfs2_inode_cache_get_super(struct ocfs2_caching_info *ci) |
1408 | { | |
1409 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1410 | ||
1411 | return oi->vfs_inode.i_sb; | |
1412 | } | |
1413 | ||
6e5a3d75 JB |
1414 | static void ocfs2_inode_cache_lock(struct ocfs2_caching_info *ci) |
1415 | { | |
1416 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1417 | ||
1418 | spin_lock(&oi->ip_lock); | |
1419 | } | |
1420 | ||
1421 | static void ocfs2_inode_cache_unlock(struct ocfs2_caching_info *ci) | |
1422 | { | |
1423 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1424 | ||
1425 | spin_unlock(&oi->ip_lock); | |
1426 | } | |
1427 | ||
1428 | static void ocfs2_inode_cache_io_lock(struct ocfs2_caching_info *ci) | |
1429 | { | |
1430 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1431 | ||
1432 | mutex_lock(&oi->ip_io_mutex); | |
1433 | } | |
1434 | ||
1435 | static void ocfs2_inode_cache_io_unlock(struct ocfs2_caching_info *ci) | |
1436 | { | |
1437 | struct ocfs2_inode_info *oi = cache_info_to_inode(ci); | |
1438 | ||
1439 | mutex_unlock(&oi->ip_io_mutex); | |
1440 | } | |
1441 | ||
1442 | const struct ocfs2_caching_operations ocfs2_inode_caching_ops = { | |
1443 | .co_owner = ocfs2_inode_cache_owner, | |
8cb471e8 | 1444 | .co_get_super = ocfs2_inode_cache_get_super, |
6e5a3d75 JB |
1445 | .co_cache_lock = ocfs2_inode_cache_lock, |
1446 | .co_cache_unlock = ocfs2_inode_cache_unlock, | |
1447 | .co_io_lock = ocfs2_inode_cache_io_lock, | |
1448 | .co_io_unlock = ocfs2_inode_cache_io_unlock, | |
1449 | }; | |
1450 |