blob: 10e1fa87396aedf9ea0a1cfbd501c25361a872e7 [file] [log] [blame]
Mark Fashehccd979b2005-12-15 14:31:24 -08001/* -*- 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>
Jan Karaa90714c2008-10-09 19:38:40 +020031#include <linux/quotaops.h>
Mark Fashehccd979b2005-12-15 14:31:24 -080032
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"
Mark Fasheh9b7895e2008-11-12 16:27:44 -080041#include "dir.h"
Joel Beckerd6b32bb2008-10-17 14:55:01 -070042#include "blockcheck.h"
Mark Fashehccd979b2005-12-15 14:31:24 -080043#include "dlmglue.h"
44#include "extent_map.h"
45#include "file.h"
Mark Fashehb4df6ed2006-02-22 17:35:08 -080046#include "heartbeat.h"
Mark Fashehccd979b2005-12-15 14:31:24 -080047#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"
Tiger Yangcf1d6c72008-08-18 17:11:00 +080055#include "xattr.h"
Mark Fashehccd979b2005-12-15 14:31:24 -080056
57#include "buffer_head_io.h"
58
Mark Fashehccd979b2005-12-15 14:31:24 -080059struct ocfs2_find_inode_args
60{
61 u64 fi_blkno;
62 unsigned long fi_ino;
63 unsigned int fi_flags;
Jan Kara5fa06132008-01-11 00:11:45 +010064 unsigned int fi_sysfile_type;
Mark Fashehccd979b2005-12-15 14:31:24 -080065};
66
Jan Kara5fa06132008-01-11 00:11:45 +010067static struct lock_class_key ocfs2_sysfile_lock_key[NUM_SYSTEM_INODES];
68
Mark Fashehccd979b2005-12-15 14:31:24 -080069static int ocfs2_read_locked_inode(struct inode *inode,
70 struct ocfs2_find_inode_args *args);
71static int ocfs2_init_locked_inode(struct inode *inode, void *opaque);
72static int ocfs2_find_actor(struct inode *inode, void *opaque);
73static int ocfs2_truncate_for_delete(struct ocfs2_super *osb,
74 struct inode *inode,
75 struct buffer_head *fe_bh);
76
Herbert Poetzlca4d1472006-07-03 17:27:12 -070077void ocfs2_set_inode_flags(struct inode *inode)
78{
79 unsigned int flags = OCFS2_I(inode)->ip_attr;
80
81 inode->i_flags &= ~(S_IMMUTABLE |
82 S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
83
84 if (flags & OCFS2_IMMUTABLE_FL)
85 inode->i_flags |= S_IMMUTABLE;
86
87 if (flags & OCFS2_SYNC_FL)
88 inode->i_flags |= S_SYNC;
89 if (flags & OCFS2_APPEND_FL)
90 inode->i_flags |= S_APPEND;
91 if (flags & OCFS2_NOATIME_FL)
92 inode->i_flags |= S_NOATIME;
93 if (flags & OCFS2_DIRSYNC_FL)
94 inode->i_flags |= S_DIRSYNC;
95}
96
Jan Kara6e4b0d52007-04-27 11:08:01 -070097/* Propagate flags from i_flags to OCFS2_I(inode)->ip_attr */
98void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi)
99{
100 unsigned int flags = oi->vfs_inode.i_flags;
101
102 oi->ip_attr &= ~(OCFS2_SYNC_FL|OCFS2_APPEND_FL|
103 OCFS2_IMMUTABLE_FL|OCFS2_NOATIME_FL|OCFS2_DIRSYNC_FL);
104 if (flags & S_SYNC)
105 oi->ip_attr |= OCFS2_SYNC_FL;
106 if (flags & S_APPEND)
107 oi->ip_attr |= OCFS2_APPEND_FL;
108 if (flags & S_IMMUTABLE)
109 oi->ip_attr |= OCFS2_IMMUTABLE_FL;
110 if (flags & S_NOATIME)
111 oi->ip_attr |= OCFS2_NOATIME_FL;
112 if (flags & S_DIRSYNC)
113 oi->ip_attr |= OCFS2_DIRSYNC_FL;
114}
115
wengang wang6ca497a2009-03-06 21:29:10 +0800116struct inode *ocfs2_ilookup(struct super_block *sb, u64 blkno)
117{
118 struct ocfs2_find_inode_args args;
119
120 args.fi_blkno = blkno;
121 args.fi_flags = 0;
122 args.fi_ino = ino_from_blkno(sb, blkno);
123 args.fi_sysfile_type = 0;
124
125 return ilookup5(sb, blkno, ocfs2_find_actor, &args);
126}
Jan Kara5fa06132008-01-11 00:11:45 +0100127struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags,
128 int sysfile_type)
Mark Fashehccd979b2005-12-15 14:31:24 -0800129{
130 struct inode *inode = NULL;
131 struct super_block *sb = osb->sb;
132 struct ocfs2_find_inode_args args;
133
Mark Fashehb0697052006-03-03 10:24:33 -0800134 mlog_entry("(blkno = %llu)\n", (unsigned long long)blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -0800135
136 /* Ok. By now we've either got the offsets passed to us by the
137 * caller, or we just pulled them off the bh. Lets do some
138 * sanity checks to make sure they're OK. */
139 if (blkno == 0) {
140 inode = ERR_PTR(-EINVAL);
141 mlog_errno(PTR_ERR(inode));
142 goto bail;
143 }
144
145 args.fi_blkno = blkno;
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700146 args.fi_flags = flags;
Mark Fashehccd979b2005-12-15 14:31:24 -0800147 args.fi_ino = ino_from_blkno(sb, blkno);
Jan Kara5fa06132008-01-11 00:11:45 +0100148 args.fi_sysfile_type = sysfile_type;
Mark Fashehccd979b2005-12-15 14:31:24 -0800149
150 inode = iget5_locked(sb, args.fi_ino, ocfs2_find_actor,
151 ocfs2_init_locked_inode, &args);
152 /* inode was *not* in the inode cache. 2.6.x requires
153 * us to do our own read_inode call and unlock it
154 * afterwards. */
155 if (inode && inode->i_state & I_NEW) {
156 mlog(0, "Inode was not in inode cache, reading it.\n");
157 ocfs2_read_locked_inode(inode, &args);
158 unlock_new_inode(inode);
159 }
160 if (inode == NULL) {
161 inode = ERR_PTR(-ENOMEM);
162 mlog_errno(PTR_ERR(inode));
163 goto bail;
164 }
165 if (is_bad_inode(inode)) {
166 iput(inode);
167 inode = ERR_PTR(-ESTALE);
Mark Fashehccd979b2005-12-15 14:31:24 -0800168 goto bail;
169 }
170
171bail:
172 if (!IS_ERR(inode)) {
Mark Fashehb0697052006-03-03 10:24:33 -0800173 mlog(0, "returning inode with number %llu\n",
174 (unsigned long long)OCFS2_I(inode)->ip_blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -0800175 mlog_exit_ptr(inode);
Mark Fasheh6a1bd4a2007-01-03 17:06:59 -0800176 }
Mark Fashehccd979b2005-12-15 14:31:24 -0800177
178 return inode;
179}
180
181
182/*
183 * here's how inodes get read from disk:
184 * iget5_locked -> find_actor -> OCFS2_FIND_ACTOR
185 * found? : return the in-memory inode
186 * not found? : get_new_inode -> OCFS2_INIT_LOCKED_INODE
187 */
188
189static int ocfs2_find_actor(struct inode *inode, void *opaque)
190{
191 struct ocfs2_find_inode_args *args = NULL;
192 struct ocfs2_inode_info *oi = OCFS2_I(inode);
193 int ret = 0;
194
195 mlog_entry("(0x%p, %lu, 0x%p)\n", inode, inode->i_ino, opaque);
196
197 args = opaque;
198
199 mlog_bug_on_msg(!inode, "No inode in find actor!\n");
200
201 if (oi->ip_blkno != args->fi_blkno)
202 goto bail;
203
Mark Fashehccd979b2005-12-15 14:31:24 -0800204 ret = 1;
205bail:
206 mlog_exit(ret);
207 return ret;
208}
209
210/*
211 * initialize the new inode, but don't do anything that would cause
212 * us to sleep.
213 * return 0 on success, 1 on failure
214 */
215static int ocfs2_init_locked_inode(struct inode *inode, void *opaque)
216{
217 struct ocfs2_find_inode_args *args = opaque;
218
219 mlog_entry("inode = %p, opaque = %p\n", inode, opaque);
220
221 inode->i_ino = args->fi_ino;
222 OCFS2_I(inode)->ip_blkno = args->fi_blkno;
Jan Kara5fa06132008-01-11 00:11:45 +0100223 if (args->fi_sysfile_type != 0)
224 lockdep_set_class(&inode->i_mutex,
225 &ocfs2_sysfile_lock_key[args->fi_sysfile_type]);
Mark Fashehccd979b2005-12-15 14:31:24 -0800226
227 mlog_exit(0);
228 return 0;
229}
230
Joel Beckerb657c952008-11-13 14:49:11 -0800231void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
232 int create_ino)
Mark Fashehccd979b2005-12-15 14:31:24 -0800233{
234 struct super_block *sb;
235 struct ocfs2_super *osb;
Mark Fasheh53da4932008-07-21 14:29:16 -0700236 int use_plocks = 1;
Mark Fashehccd979b2005-12-15 14:31:24 -0800237
Mark Fashehb0697052006-03-03 10:24:33 -0800238 mlog_entry("(0x%p, size:%llu)\n", inode,
Mark Fasheh1ca1a112007-04-27 16:01:25 -0700239 (unsigned long long)le64_to_cpu(fe->i_size));
Mark Fashehccd979b2005-12-15 14:31:24 -0800240
241 sb = inode->i_sb;
242 osb = OCFS2_SB(sb);
243
Mark Fasheh53da4932008-07-21 14:29:16 -0700244 if ((osb->s_mount_opt & OCFS2_MOUNT_LOCALFLOCKS) ||
245 ocfs2_mount_local(osb) || !ocfs2_stack_supports_plocks())
246 use_plocks = 0;
247
Joel Beckerb657c952008-11-13 14:49:11 -0800248 /*
249 * These have all been checked by ocfs2_read_inode_block() or set
250 * by ocfs2_mknod_locked(), so a failure is a code bug.
251 */
252 BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); /* This means that read_inode
253 cannot create a superblock
254 inode today. change if
255 that is needed. */
256 BUG_ON(!(fe->i_flags & cpu_to_le32(OCFS2_VALID_FL)));
257 BUG_ON(le32_to_cpu(fe->i_fs_generation) != osb->fs_generation);
Mark Fashehccd979b2005-12-15 14:31:24 -0800258
Mark Fashehccd979b2005-12-15 14:31:24 -0800259
Mark Fasheh8110b072007-03-22 16:53:23 -0700260 OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
261 OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
Mark Fasheh15b1e362007-09-07 13:58:15 -0700262 OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features);
Mark Fasheh8110b072007-03-22 16:53:23 -0700263
Mark Fashehccd979b2005-12-15 14:31:24 -0800264 inode->i_version = 1;
265 inode->i_generation = le32_to_cpu(fe->i_generation);
266 inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev));
267 inode->i_mode = le16_to_cpu(fe->i_mode);
268 inode->i_uid = le32_to_cpu(fe->i_uid);
269 inode->i_gid = le32_to_cpu(fe->i_gid);
Mark Fashehccd979b2005-12-15 14:31:24 -0800270
271 /* Fast symlinks will have i_size but no allocated clusters. */
272 if (S_ISLNK(inode->i_mode) && !fe->i_clusters)
273 inode->i_blocks = 0;
274 else
Mark Fasheh8110b072007-03-22 16:53:23 -0700275 inode->i_blocks = ocfs2_inode_sector_count(inode);
Mark Fashehccd979b2005-12-15 14:31:24 -0800276 inode->i_mapping->a_ops = &ocfs2_aops;
Mark Fashehccd979b2005-12-15 14:31:24 -0800277 inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime);
278 inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec);
279 inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime);
280 inode->i_mtime.tv_nsec = le32_to_cpu(fe->i_mtime_nsec);
281 inode->i_ctime.tv_sec = le64_to_cpu(fe->i_ctime);
282 inode->i_ctime.tv_nsec = le32_to_cpu(fe->i_ctime_nsec);
283
284 if (OCFS2_I(inode)->ip_blkno != le64_to_cpu(fe->i_blkno))
285 mlog(ML_ERROR,
Mark Fashehb0697052006-03-03 10:24:33 -0800286 "ip_blkno %llu != i_blkno %llu!\n",
287 (unsigned long long)OCFS2_I(inode)->ip_blkno,
Mark Fasheh1ca1a112007-04-27 16:01:25 -0700288 (unsigned long long)le64_to_cpu(fe->i_blkno));
Mark Fashehccd979b2005-12-15 14:31:24 -0800289
Mark Fasheh198a1ca2008-11-20 17:54:57 -0800290 inode->i_nlink = ocfs2_read_links_count(fe);
Mark Fashehccd979b2005-12-15 14:31:24 -0800291
Jan Karabbbd0eb2008-08-21 18:22:30 +0200292 if (fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) {
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700293 OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SYSTEM_FILE;
Jan Karabbbd0eb2008-08-21 18:22:30 +0200294 inode->i_flags |= S_NOQUOTA;
295 }
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700296
Mark Fashehccd979b2005-12-15 14:31:24 -0800297 if (fe->i_flags & cpu_to_le32(OCFS2_LOCAL_ALLOC_FL)) {
298 OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP;
299 mlog(0, "local alloc inode: i_ino=%lu\n", inode->i_ino);
300 } else if (fe->i_flags & cpu_to_le32(OCFS2_BITMAP_FL)) {
301 OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP;
Jan Kara1a224ad2008-08-20 15:43:36 +0200302 } else if (fe->i_flags & cpu_to_le32(OCFS2_QUOTA_FL)) {
303 inode->i_flags |= S_NOQUOTA;
Mark Fashehccd979b2005-12-15 14:31:24 -0800304 } else if (fe->i_flags & cpu_to_le32(OCFS2_SUPER_BLOCK_FL)) {
305 mlog(0, "superblock inode: i_ino=%lu\n", inode->i_ino);
306 /* we can't actually hit this as read_inode can't
307 * handle superblocks today ;-) */
308 BUG();
309 }
310
311 switch (inode->i_mode & S_IFMT) {
312 case S_IFREG:
Mark Fasheh53da4932008-07-21 14:29:16 -0700313 if (use_plocks)
314 inode->i_fop = &ocfs2_fops;
315 else
316 inode->i_fop = &ocfs2_fops_no_plocks;
Mark Fashehccd979b2005-12-15 14:31:24 -0800317 inode->i_op = &ocfs2_file_iops;
318 i_size_write(inode, le64_to_cpu(fe->i_size));
319 break;
320 case S_IFDIR:
321 inode->i_op = &ocfs2_dir_iops;
Mark Fasheh53da4932008-07-21 14:29:16 -0700322 if (use_plocks)
323 inode->i_fop = &ocfs2_dops;
324 else
325 inode->i_fop = &ocfs2_dops_no_plocks;
Mark Fashehccd979b2005-12-15 14:31:24 -0800326 i_size_write(inode, le64_to_cpu(fe->i_size));
327 break;
328 case S_IFLNK:
329 if (ocfs2_inode_is_fast_symlink(inode))
330 inode->i_op = &ocfs2_fast_symlink_inode_operations;
331 else
332 inode->i_op = &ocfs2_symlink_inode_operations;
333 i_size_write(inode, le64_to_cpu(fe->i_size));
334 break;
335 default:
336 inode->i_op = &ocfs2_special_file_iops;
337 init_special_inode(inode, inode->i_mode,
338 inode->i_rdev);
339 break;
340 }
341
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700342 if (create_ino) {
343 inode->i_ino = ino_from_blkno(inode->i_sb,
344 le64_to_cpu(fe->i_blkno));
345
346 /*
347 * If we ever want to create system files from kernel,
348 * the generation argument to
349 * ocfs2_inode_lock_res_init() will have to change.
350 */
Mark Fasheh1ca1a112007-04-27 16:01:25 -0700351 BUG_ON(le32_to_cpu(fe->i_flags) & OCFS2_SYSTEM_FL);
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700352
Mark Fashehe63aecb62007-10-18 15:30:42 -0700353 ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres,
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700354 OCFS2_LOCK_TYPE_META, 0, inode);
Tiger Yang50008632007-03-20 16:01:38 -0700355
356 ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres,
357 OCFS2_LOCK_TYPE_OPEN, 0, inode);
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700358 }
359
Mark Fashehccd979b2005-12-15 14:31:24 -0800360 ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_rw_lockres,
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700361 OCFS2_LOCK_TYPE_RW, inode->i_generation,
362 inode);
363
Herbert Poetzlca4d1472006-07-03 17:27:12 -0700364 ocfs2_set_inode_flags(inode);
Herbert Poetzlca4d1472006-07-03 17:27:12 -0700365
Tao Ma13821152009-02-25 00:53:23 +0800366 OCFS2_I(inode)->ip_last_used_slot = 0;
367 OCFS2_I(inode)->ip_last_used_group = 0;
Joel Beckerb657c952008-11-13 14:49:11 -0800368 mlog_exit_void();
Mark Fashehccd979b2005-12-15 14:31:24 -0800369}
370
371static int ocfs2_read_locked_inode(struct inode *inode,
372 struct ocfs2_find_inode_args *args)
373{
374 struct super_block *sb;
375 struct ocfs2_super *osb;
376 struct ocfs2_dinode *fe;
377 struct buffer_head *bh = NULL;
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700378 int status, can_lock;
379 u32 generation = 0;
Mark Fashehccd979b2005-12-15 14:31:24 -0800380
381 mlog_entry("(0x%p, 0x%p)\n", inode, args);
382
383 status = -EINVAL;
384 if (inode == NULL || inode->i_sb == NULL) {
385 mlog(ML_ERROR, "bad inode\n");
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700386 return status;
Mark Fashehccd979b2005-12-15 14:31:24 -0800387 }
388 sb = inode->i_sb;
389 osb = OCFS2_SB(sb);
390
391 if (!args) {
392 mlog(ML_ERROR, "bad inode args\n");
393 make_bad_inode(inode);
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700394 return status;
Mark Fashehccd979b2005-12-15 14:31:24 -0800395 }
396
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700397 /*
398 * To improve performance of cold-cache inode stats, we take
399 * the cluster lock here if possible.
400 *
401 * Generally, OCFS2 never trusts the contents of an inode
402 * unless it's holding a cluster lock, so taking it here isn't
403 * a correctness issue as much as it is a performance
404 * improvement.
405 *
406 * There are three times when taking the lock is not a good idea:
407 *
408 * 1) During startup, before we have initialized the DLM.
409 *
410 * 2) If we are reading certain system files which never get
411 * cluster locks (local alloc, truncate log).
412 *
413 * 3) If the process doing the iget() is responsible for
414 * orphan dir recovery. We're holding the orphan dir lock and
415 * can get into a deadlock with another process on another
416 * node in ->delete_inode().
417 *
418 * #1 and #2 can be simply solved by never taking the lock
419 * here for system files (which are the only type we read
420 * during mount). It's a heavier approach, but our main
421 * concern is user-accesible files anyway.
422 *
423 * #3 works itself out because we'll eventually take the
424 * cluster lock before trusting anything anyway.
425 */
426 can_lock = !(args->fi_flags & OCFS2_FI_FLAG_SYSFILE)
Tiger Yang50008632007-03-20 16:01:38 -0700427 && !(args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY)
Sunil Mushranc271c5c2006-12-05 17:56:35 -0800428 && !ocfs2_mount_local(osb);
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700429
430 /*
431 * To maintain backwards compatibility with older versions of
432 * ocfs2-tools, we still store the generation value for system
433 * files. The only ones that actually matter to userspace are
434 * the journals, but it's easier and inexpensive to just flag
435 * all system files similarly.
436 */
437 if (args->fi_flags & OCFS2_FI_FLAG_SYSFILE)
438 generation = osb->fs_generation;
439
Mark Fashehe63aecb62007-10-18 15:30:42 -0700440 ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres,
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700441 OCFS2_LOCK_TYPE_META,
442 generation, inode);
443
Tiger Yang50008632007-03-20 16:01:38 -0700444 ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres,
445 OCFS2_LOCK_TYPE_OPEN,
446 0, inode);
447
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700448 if (can_lock) {
Tiger Yang50008632007-03-20 16:01:38 -0700449 status = ocfs2_open_lock(inode);
450 if (status) {
451 make_bad_inode(inode);
452 mlog_errno(status);
453 return status;
454 }
Mark Fashehe63aecb62007-10-18 15:30:42 -0700455 status = ocfs2_inode_lock(inode, NULL, 0);
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700456 if (status) {
457 make_bad_inode(inode);
458 mlog_errno(status);
459 return status;
460 }
461 }
462
Tiger Yang50008632007-03-20 16:01:38 -0700463 if (args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) {
464 status = ocfs2_try_open_lock(inode, 0);
465 if (status) {
466 make_bad_inode(inode);
467 return status;
468 }
469 }
470
Joel Beckerb657c952008-11-13 14:49:11 -0800471 if (can_lock) {
472 status = ocfs2_read_inode_block_full(inode, &bh,
473 OCFS2_BH_IGNORE_CACHE);
474 } else {
Joel Beckerda1e9092008-10-09 17:20:29 -0700475 status = ocfs2_read_blocks_sync(osb, args->fi_blkno, 1, &bh);
Joel Beckerb657c952008-11-13 14:49:11 -0800476 if (!status)
477 status = ocfs2_validate_inode_block(osb->sb, bh);
478 }
Mark Fashehccd979b2005-12-15 14:31:24 -0800479 if (status < 0) {
480 mlog_errno(status);
Mark Fashehccd979b2005-12-15 14:31:24 -0800481 goto bail;
482 }
483
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700484 status = -EINVAL;
Mark Fashehccd979b2005-12-15 14:31:24 -0800485 fe = (struct ocfs2_dinode *) bh->b_data;
Mark Fashehccd979b2005-12-15 14:31:24 -0800486
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700487 /*
488 * This is a code bug. Right now the caller needs to
489 * understand whether it is asking for a system file inode or
490 * not so the proper lock names can be built.
491 */
492 mlog_bug_on_msg(!!(fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) !=
493 !!(args->fi_flags & OCFS2_FI_FLAG_SYSFILE),
494 "Inode %llu: system file state is ambigous\n",
495 (unsigned long long)args->fi_blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -0800496
497 if (S_ISCHR(le16_to_cpu(fe->i_mode)) ||
498 S_ISBLK(le16_to_cpu(fe->i_mode)))
Joel Beckerb657c952008-11-13 14:49:11 -0800499 inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev));
Mark Fashehccd979b2005-12-15 14:31:24 -0800500
Joel Beckerb657c952008-11-13 14:49:11 -0800501 ocfs2_populate_inode(inode, fe, 0);
Mark Fashehccd979b2005-12-15 14:31:24 -0800502
503 BUG_ON(args->fi_blkno != le64_to_cpu(fe->i_blkno));
504
Mark Fashehccd979b2005-12-15 14:31:24 -0800505 status = 0;
506
507bail:
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700508 if (can_lock)
Mark Fashehe63aecb62007-10-18 15:30:42 -0700509 ocfs2_inode_unlock(inode, 0);
Mark Fasheh24c19ef2006-09-22 17:28:19 -0700510
511 if (status < 0)
512 make_bad_inode(inode);
513
Mark Fashehccd979b2005-12-15 14:31:24 -0800514 if (args && bh)
515 brelse(bh);
516
517 mlog_exit(status);
518 return status;
519}
520
521void ocfs2_sync_blockdev(struct super_block *sb)
522{
523 sync_blockdev(sb->s_bdev);
524}
525
526static int ocfs2_truncate_for_delete(struct ocfs2_super *osb,
527 struct inode *inode,
528 struct buffer_head *fe_bh)
529{
530 int status = 0;
Mark Fashehccd979b2005-12-15 14:31:24 -0800531 struct ocfs2_truncate_context *tc = NULL;
532 struct ocfs2_dinode *fe;
Mark Fasheh60b11392007-02-16 11:46:50 -0800533 handle_t *handle = NULL;
Mark Fashehccd979b2005-12-15 14:31:24 -0800534
535 mlog_entry_void();
536
537 fe = (struct ocfs2_dinode *) fe_bh->b_data;
538
Mark Fasheh1afc32b2007-09-07 14:46:51 -0700539 /*
540 * This check will also skip truncate of inodes with inline
541 * data and fast symlinks.
542 */
Mark Fasheh3a0782d2007-01-17 12:53:31 -0800543 if (fe->i_clusters) {
Joel Becker2b4e30f2008-09-03 20:03:41 -0700544 if (ocfs2_should_order_data(inode))
545 ocfs2_begin_ordered_truncate(inode, 0);
546
Mark Fasheh60b11392007-02-16 11:46:50 -0800547 handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
548 if (IS_ERR(handle)) {
549 status = PTR_ERR(handle);
550 mlog_errno(status);
551 goto out;
552 }
553
Joel Becker13723d02008-10-17 19:25:01 -0700554 status = ocfs2_journal_access_di(handle, inode, fe_bh,
555 OCFS2_JOURNAL_ACCESS_WRITE);
Mark Fasheh60b11392007-02-16 11:46:50 -0800556 if (status < 0) {
557 mlog_errno(status);
558 goto out;
559 }
560
561 i_size_write(inode, 0);
562
563 status = ocfs2_mark_inode_dirty(handle, inode, fe_bh);
564 if (status < 0) {
565 mlog_errno(status);
566 goto out;
567 }
568
569 ocfs2_commit_trans(osb, handle);
570 handle = NULL;
571
Mark Fasheh3a0782d2007-01-17 12:53:31 -0800572 status = ocfs2_prepare_truncate(osb, inode, fe_bh, &tc);
573 if (status < 0) {
574 mlog_errno(status);
575 goto out;
576 }
Mark Fashehccd979b2005-12-15 14:31:24 -0800577
Mark Fasheh3a0782d2007-01-17 12:53:31 -0800578 status = ocfs2_commit_truncate(osb, inode, fe_bh, tc);
579 if (status < 0) {
580 mlog_errno(status);
581 goto out;
582 }
Mark Fashehccd979b2005-12-15 14:31:24 -0800583 }
Mark Fashehccd979b2005-12-15 14:31:24 -0800584
Mark Fasheh60b11392007-02-16 11:46:50 -0800585out:
586 if (handle)
587 ocfs2_commit_trans(osb, handle);
Mark Fashehccd979b2005-12-15 14:31:24 -0800588 mlog_exit(status);
589 return status;
590}
591
592static int ocfs2_remove_inode(struct inode *inode,
593 struct buffer_head *di_bh,
594 struct inode *orphan_dir_inode,
595 struct buffer_head *orphan_dir_bh)
596{
597 int status;
598 struct inode *inode_alloc_inode = NULL;
599 struct buffer_head *inode_alloc_bh = NULL;
Mark Fasheh1fabe142006-10-09 18:11:45 -0700600 handle_t *handle;
Mark Fashehccd979b2005-12-15 14:31:24 -0800601 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
602 struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data;
603
604 inode_alloc_inode =
605 ocfs2_get_system_file_inode(osb, INODE_ALLOC_SYSTEM_INODE,
606 le16_to_cpu(di->i_suballoc_slot));
607 if (!inode_alloc_inode) {
608 status = -EEXIST;
609 mlog_errno(status);
610 goto bail;
611 }
612
Jes Sorensen1b1dcc12006-01-09 15:59:24 -0800613 mutex_lock(&inode_alloc_inode->i_mutex);
Mark Fashehe63aecb62007-10-18 15:30:42 -0700614 status = ocfs2_inode_lock(inode_alloc_inode, &inode_alloc_bh, 1);
Mark Fashehccd979b2005-12-15 14:31:24 -0800615 if (status < 0) {
Jes Sorensen1b1dcc12006-01-09 15:59:24 -0800616 mutex_unlock(&inode_alloc_inode->i_mutex);
Mark Fashehccd979b2005-12-15 14:31:24 -0800617
618 mlog_errno(status);
619 goto bail;
620 }
621
Jan Karaa90714c2008-10-09 19:38:40 +0200622 handle = ocfs2_start_trans(osb, OCFS2_DELETE_INODE_CREDITS +
Mark Fasheh9b7895e2008-11-12 16:27:44 -0800623 ocfs2_quota_trans_credits(inode->i_sb));
Mark Fashehccd979b2005-12-15 14:31:24 -0800624 if (IS_ERR(handle)) {
625 status = PTR_ERR(handle);
626 mlog_errno(status);
627 goto bail_unlock;
628 }
629
630 status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode,
631 orphan_dir_bh);
632 if (status < 0) {
633 mlog_errno(status);
634 goto bail_commit;
635 }
636
637 /* set the inodes dtime */
Joel Becker13723d02008-10-17 19:25:01 -0700638 status = ocfs2_journal_access_di(handle, inode, di_bh,
639 OCFS2_JOURNAL_ACCESS_WRITE);
Mark Fashehccd979b2005-12-15 14:31:24 -0800640 if (status < 0) {
641 mlog_errno(status);
642 goto bail_commit;
643 }
644
645 di->i_dtime = cpu_to_le64(CURRENT_TIME.tv_sec);
Marcin Slusarz4092d492007-12-25 15:52:59 +0100646 di->i_flags &= cpu_to_le32(~(OCFS2_VALID_FL | OCFS2_ORPHANED_FL));
Mark Fashehccd979b2005-12-15 14:31:24 -0800647
648 status = ocfs2_journal_dirty(handle, di_bh);
649 if (status < 0) {
650 mlog_errno(status);
651 goto bail_commit;
652 }
653
654 ocfs2_remove_from_cache(inode, di_bh);
Jan Karaa90714c2008-10-09 19:38:40 +0200655 vfs_dq_free_inode(inode);
Mark Fashehccd979b2005-12-15 14:31:24 -0800656
657 status = ocfs2_free_dinode(handle, inode_alloc_inode,
658 inode_alloc_bh, di);
659 if (status < 0)
660 mlog_errno(status);
661
662bail_commit:
Mark Fasheh02dc1af2006-10-09 16:48:10 -0700663 ocfs2_commit_trans(osb, handle);
Mark Fashehccd979b2005-12-15 14:31:24 -0800664bail_unlock:
Mark Fashehe63aecb62007-10-18 15:30:42 -0700665 ocfs2_inode_unlock(inode_alloc_inode, 1);
Jes Sorensen1b1dcc12006-01-09 15:59:24 -0800666 mutex_unlock(&inode_alloc_inode->i_mutex);
Mark Fashehccd979b2005-12-15 14:31:24 -0800667 brelse(inode_alloc_bh);
668bail:
669 iput(inode_alloc_inode);
670
671 return status;
672}
673
Mark Fashehb4df6ed2006-02-22 17:35:08 -0800674/*
675 * Serialize with orphan dir recovery. If the process doing
676 * recovery on this orphan dir does an iget() with the dir
677 * i_mutex held, we'll deadlock here. Instead we detect this
678 * and exit early - recovery will wipe this inode for us.
679 */
680static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb,
681 int slot)
682{
683 int ret = 0;
684
685 spin_lock(&osb->osb_lock);
686 if (ocfs2_node_map_test_bit(osb, &osb->osb_recovering_orphan_dirs, slot)) {
687 mlog(0, "Recovery is happening on orphan dir %d, will skip "
688 "this inode\n", slot);
689 ret = -EDEADLK;
690 goto out;
691 }
692 /* This signals to the orphan recovery process that it should
693 * wait for us to handle the wipe. */
694 osb->osb_orphan_wipes[slot]++;
695out:
696 spin_unlock(&osb->osb_lock);
697 return ret;
698}
699
700static void ocfs2_signal_wipe_completion(struct ocfs2_super *osb,
701 int slot)
702{
703 spin_lock(&osb->osb_lock);
704 osb->osb_orphan_wipes[slot]--;
705 spin_unlock(&osb->osb_lock);
706
707 wake_up(&osb->osb_wipe_event);
708}
709
Mark Fashehccd979b2005-12-15 14:31:24 -0800710static int ocfs2_wipe_inode(struct inode *inode,
711 struct buffer_head *di_bh)
712{
713 int status, orphaned_slot;
714 struct inode *orphan_dir_inode = NULL;
715 struct buffer_head *orphan_dir_bh = NULL;
716 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
Tiger Yang50008632007-03-20 16:01:38 -0700717 struct ocfs2_dinode *di;
Mark Fashehccd979b2005-12-15 14:31:24 -0800718
Tiger Yang50008632007-03-20 16:01:38 -0700719 di = (struct ocfs2_dinode *) di_bh->b_data;
720 orphaned_slot = le16_to_cpu(di->i_orphaned_slot);
Mark Fashehb4df6ed2006-02-22 17:35:08 -0800721
722 status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot);
723 if (status)
724 return status;
725
Mark Fashehccd979b2005-12-15 14:31:24 -0800726 orphan_dir_inode = ocfs2_get_system_file_inode(osb,
727 ORPHAN_DIR_SYSTEM_INODE,
728 orphaned_slot);
729 if (!orphan_dir_inode) {
730 status = -EEXIST;
731 mlog_errno(status);
732 goto bail;
733 }
734
735 /* Lock the orphan dir. The lock will be held for the entire
736 * delete_inode operation. We do this now to avoid races with
737 * recovery completion on other nodes. */
Jes Sorensen1b1dcc12006-01-09 15:59:24 -0800738 mutex_lock(&orphan_dir_inode->i_mutex);
Mark Fashehe63aecb62007-10-18 15:30:42 -0700739 status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
Mark Fashehccd979b2005-12-15 14:31:24 -0800740 if (status < 0) {
Jes Sorensen1b1dcc12006-01-09 15:59:24 -0800741 mutex_unlock(&orphan_dir_inode->i_mutex);
Mark Fashehccd979b2005-12-15 14:31:24 -0800742
743 mlog_errno(status);
744 goto bail;
745 }
746
747 /* we do this while holding the orphan dir lock because we
Mark Fasheh34d024f2007-09-24 15:56:19 -0700748 * don't want recovery being run from another node to try an
749 * inode delete underneath us -- this will result in two nodes
Mark Fashehccd979b2005-12-15 14:31:24 -0800750 * truncating the same file! */
751 status = ocfs2_truncate_for_delete(osb, inode, di_bh);
752 if (status < 0) {
753 mlog_errno(status);
754 goto bail_unlock_dir;
755 }
756
Mark Fasheh9b7895e2008-11-12 16:27:44 -0800757 /* Remove any dir index tree */
758 if (S_ISDIR(inode->i_mode)) {
759 status = ocfs2_dx_dir_truncate(inode, di_bh);
760 if (status) {
761 mlog_errno(status);
762 goto bail_unlock_dir;
763 }
764 }
765
Tiger Yangcf1d6c72008-08-18 17:11:00 +0800766 /*Free extended attribute resources associated with this inode.*/
767 status = ocfs2_xattr_remove(inode, di_bh);
768 if (status < 0) {
769 mlog_errno(status);
770 goto bail_unlock_dir;
771 }
772
Mark Fashehccd979b2005-12-15 14:31:24 -0800773 status = ocfs2_remove_inode(inode, di_bh, orphan_dir_inode,
774 orphan_dir_bh);
775 if (status < 0)
776 mlog_errno(status);
777
778bail_unlock_dir:
Mark Fashehe63aecb62007-10-18 15:30:42 -0700779 ocfs2_inode_unlock(orphan_dir_inode, 1);
Jes Sorensen1b1dcc12006-01-09 15:59:24 -0800780 mutex_unlock(&orphan_dir_inode->i_mutex);
Mark Fashehccd979b2005-12-15 14:31:24 -0800781 brelse(orphan_dir_bh);
782bail:
783 iput(orphan_dir_inode);
Mark Fashehb4df6ed2006-02-22 17:35:08 -0800784 ocfs2_signal_wipe_completion(osb, orphaned_slot);
Mark Fashehccd979b2005-12-15 14:31:24 -0800785
786 return status;
787}
788
789/* There is a series of simple checks that should be done before a
Mark Fasheh34d024f2007-09-24 15:56:19 -0700790 * trylock is even considered. Encapsulate those in this function. */
Mark Fashehccd979b2005-12-15 14:31:24 -0800791static int ocfs2_inode_is_valid_to_delete(struct inode *inode)
792{
793 int ret = 0;
794 struct ocfs2_inode_info *oi = OCFS2_I(inode);
795 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
796
797 /* We shouldn't be getting here for the root directory
798 * inode.. */
799 if (inode == osb->root_inode) {
800 mlog(ML_ERROR, "Skipping delete of root inode.\n");
801 goto bail;
802 }
803
Mark Fasheh34d024f2007-09-24 15:56:19 -0700804 /* If we're coming from downconvert_thread we can't go into our own
Mark Fashehccd979b2005-12-15 14:31:24 -0800805 * voting [hello, deadlock city!], so unforuntately we just
806 * have to skip deleting this guy. That's OK though because
807 * the node who's doing the actual deleting should handle it
808 * anyway. */
Mark Fasheh34d024f2007-09-24 15:56:19 -0700809 if (current == osb->dc_task) {
Mark Fashehccd979b2005-12-15 14:31:24 -0800810 mlog(0, "Skipping delete of %lu because we're currently "
Mark Fasheh34d024f2007-09-24 15:56:19 -0700811 "in downconvert\n", inode->i_ino);
Mark Fashehccd979b2005-12-15 14:31:24 -0800812 goto bail;
813 }
814
815 spin_lock(&oi->ip_lock);
816 /* OCFS2 *never* deletes system files. This should technically
817 * never get here as system file inodes should always have a
818 * positive link count. */
819 if (oi->ip_flags & OCFS2_INODE_SYSTEM_FILE) {
Mark Fashehb0697052006-03-03 10:24:33 -0800820 mlog(ML_ERROR, "Skipping delete of system file %llu\n",
821 (unsigned long long)oi->ip_blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -0800822 goto bail_unlock;
823 }
824
Mark Fasheh34d024f2007-09-24 15:56:19 -0700825 /* If we have allowd wipe of this inode for another node, it
826 * will be marked here so we can safely skip it. Recovery will
827 * cleanup any inodes we might inadvertantly skip here. */
Mark Fashehccd979b2005-12-15 14:31:24 -0800828 if (oi->ip_flags & OCFS2_INODE_SKIP_DELETE) {
829 mlog(0, "Skipping delete of %lu because another node "
830 "has done this for us.\n", inode->i_ino);
831 goto bail_unlock;
832 }
833
834 ret = 1;
835bail_unlock:
836 spin_unlock(&oi->ip_lock);
837bail:
838 return ret;
839}
840
841/* Query the cluster to determine whether we should wipe an inode from
842 * disk or not.
843 *
844 * Requires the inode to have the cluster lock. */
845static int ocfs2_query_inode_wipe(struct inode *inode,
846 struct buffer_head *di_bh,
847 int *wipe)
848{
849 int status = 0;
850 struct ocfs2_inode_info *oi = OCFS2_I(inode);
851 struct ocfs2_dinode *di;
852
853 *wipe = 0;
854
855 /* While we were waiting for the cluster lock in
856 * ocfs2_delete_inode, another node might have asked to delete
857 * the inode. Recheck our flags to catch this. */
858 if (!ocfs2_inode_is_valid_to_delete(inode)) {
Mark Fashehb0697052006-03-03 10:24:33 -0800859 mlog(0, "Skipping delete of %llu because flags changed\n",
860 (unsigned long long)oi->ip_blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -0800861 goto bail;
862 }
863
864 /* Now that we have an up to date inode, we can double check
865 * the link count. */
866 if (inode->i_nlink) {
Mark Fashehb0697052006-03-03 10:24:33 -0800867 mlog(0, "Skipping delete of %llu because nlink = %u\n",
868 (unsigned long long)oi->ip_blkno, inode->i_nlink);
Mark Fashehccd979b2005-12-15 14:31:24 -0800869 goto bail;
870 }
871
872 /* Do some basic inode verification... */
873 di = (struct ocfs2_dinode *) di_bh->b_data;
874 if (!(di->i_flags & cpu_to_le32(OCFS2_ORPHANED_FL))) {
875 /* for lack of a better error? */
876 status = -EEXIST;
877 mlog(ML_ERROR,
Mark Fashehb0697052006-03-03 10:24:33 -0800878 "Inode %llu (on-disk %llu) not orphaned! "
Mark Fashehccd979b2005-12-15 14:31:24 -0800879 "Disk flags 0x%x, inode flags 0x%x\n",
Mark Fashehb0697052006-03-03 10:24:33 -0800880 (unsigned long long)oi->ip_blkno,
Mark Fasheh1ca1a112007-04-27 16:01:25 -0700881 (unsigned long long)le64_to_cpu(di->i_blkno),
882 le32_to_cpu(di->i_flags), oi->ip_flags);
Mark Fashehccd979b2005-12-15 14:31:24 -0800883 goto bail;
884 }
885
886 /* has someone already deleted us?! baaad... */
887 if (di->i_dtime) {
888 status = -EEXIST;
889 mlog_errno(status);
890 goto bail;
891 }
892
Mark Fasheh6f16bf62007-03-20 17:17:54 -0700893 /*
894 * This is how ocfs2 determines whether an inode is still live
895 * within the cluster. Every node takes a shared read lock on
896 * the inode open lock in ocfs2_read_locked_inode(). When we
897 * get to ->delete_inode(), each node tries to convert it's
898 * lock to an exclusive. Trylocks are serialized by the inode
899 * meta data lock. If the upconvert suceeds, we know the inode
900 * is no longer live and can be deleted.
901 *
902 * Though we call this with the meta data lock held, the
903 * trylock keeps us from ABBA deadlock.
904 */
905 status = ocfs2_try_open_lock(inode, 1);
Tiger Yang50008632007-03-20 16:01:38 -0700906 if (status == -EAGAIN) {
Mark Fashehccd979b2005-12-15 14:31:24 -0800907 status = 0;
Joe Perches27592362007-11-19 17:53:34 -0800908 mlog(0, "Skipping delete of %llu because it is in use on "
Mark Fashehb0697052006-03-03 10:24:33 -0800909 "other nodes\n", (unsigned long long)oi->ip_blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -0800910 goto bail;
911 }
912 if (status < 0) {
913 mlog_errno(status);
914 goto bail;
915 }
916
Tiger Yang50008632007-03-20 16:01:38 -0700917 *wipe = 1;
918 mlog(0, "Inode %llu is ok to wipe from orphan dir %u\n",
919 (unsigned long long)oi->ip_blkno,
920 le16_to_cpu(di->i_orphaned_slot));
Mark Fashehccd979b2005-12-15 14:31:24 -0800921
922bail:
923 return status;
924}
925
926/* Support function for ocfs2_delete_inode. Will help us keep the
927 * inode data in a consistent state for clear_inode. Always truncates
928 * pages, optionally sync's them first. */
929static void ocfs2_cleanup_delete_inode(struct inode *inode,
930 int sync_data)
931{
Mark Fashehb0697052006-03-03 10:24:33 -0800932 mlog(0, "Cleanup inode %llu, sync = %d\n",
933 (unsigned long long)OCFS2_I(inode)->ip_blkno, sync_data);
Mark Fashehccd979b2005-12-15 14:31:24 -0800934 if (sync_data)
935 write_inode_now(inode, 1);
936 truncate_inode_pages(&inode->i_data, 0);
937}
938
939void ocfs2_delete_inode(struct inode *inode)
940{
941 int wipe, status;
942 sigset_t blocked, oldset;
943 struct buffer_head *di_bh = NULL;
944
945 mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino);
946
Jan Karaa90714c2008-10-09 19:38:40 +0200947 /* When we fail in read_inode() we mark inode as bad. The second test
948 * catches the case when inode allocation fails before allocating
949 * a block for inode. */
950 if (is_bad_inode(inode) || !OCFS2_I(inode)->ip_blkno) {
Mark Fashehccd979b2005-12-15 14:31:24 -0800951 mlog(0, "Skipping delete of bad inode\n");
952 goto bail;
953 }
954
955 if (!ocfs2_inode_is_valid_to_delete(inode)) {
956 /* It's probably not necessary to truncate_inode_pages
957 * here but we do it for safety anyway (it will most
958 * likely be a no-op anyway) */
959 ocfs2_cleanup_delete_inode(inode, 0);
960 goto bail;
961 }
962
963 /* We want to block signals in delete_inode as the lock and
964 * messaging paths may return us -ERESTARTSYS. Which would
965 * cause us to exit early, resulting in inodes being orphaned
966 * forever. */
967 sigfillset(&blocked);
968 status = sigprocmask(SIG_BLOCK, &blocked, &oldset);
969 if (status < 0) {
970 mlog_errno(status);
971 ocfs2_cleanup_delete_inode(inode, 1);
972 goto bail;
973 }
974
wengang wang6ca497a2009-03-06 21:29:10 +0800975 /*
976 * Synchronize us against ocfs2_get_dentry. We take this in
977 * shared mode so that all nodes can still concurrently
978 * process deletes.
979 */
980 status = ocfs2_nfs_sync_lock(OCFS2_SB(inode->i_sb), 0);
981 if (status < 0) {
982 mlog(ML_ERROR, "getting nfs sync lock(PR) failed %d\n", status);
983 ocfs2_cleanup_delete_inode(inode, 0);
984 goto bail_unblock;
985 }
Mark Fashehccd979b2005-12-15 14:31:24 -0800986 /* Lock down the inode. This gives us an up to date view of
987 * it's metadata (for verification), and allows us to
Mark Fasheh34d024f2007-09-24 15:56:19 -0700988 * serialize delete_inode on multiple nodes.
Mark Fashehccd979b2005-12-15 14:31:24 -0800989 *
990 * Even though we might be doing a truncate, we don't take the
991 * allocation lock here as it won't be needed - nobody will
992 * have the file open.
993 */
Mark Fashehe63aecb62007-10-18 15:30:42 -0700994 status = ocfs2_inode_lock(inode, &di_bh, 1);
Mark Fashehccd979b2005-12-15 14:31:24 -0800995 if (status < 0) {
996 if (status != -ENOENT)
997 mlog_errno(status);
998 ocfs2_cleanup_delete_inode(inode, 0);
wengang wang6ca497a2009-03-06 21:29:10 +0800999 goto bail_unlock_nfs_sync;
Mark Fashehccd979b2005-12-15 14:31:24 -08001000 }
1001
1002 /* Query the cluster. This will be the final decision made
1003 * before we go ahead and wipe the inode. */
1004 status = ocfs2_query_inode_wipe(inode, di_bh, &wipe);
1005 if (!wipe || status < 0) {
Mark Fasheh34d024f2007-09-24 15:56:19 -07001006 /* Error and remote inode busy both mean we won't be
Mark Fashehccd979b2005-12-15 14:31:24 -08001007 * removing the inode, so they take almost the same
1008 * path. */
1009 if (status < 0)
1010 mlog_errno(status);
1011
Mark Fasheh34d024f2007-09-24 15:56:19 -07001012 /* Someone in the cluster has disallowed a wipe of
1013 * this inode, or it was never completely
1014 * orphaned. Write out the pages and exit now. */
Mark Fashehccd979b2005-12-15 14:31:24 -08001015 ocfs2_cleanup_delete_inode(inode, 1);
1016 goto bail_unlock_inode;
1017 }
1018
1019 ocfs2_cleanup_delete_inode(inode, 0);
1020
1021 status = ocfs2_wipe_inode(inode, di_bh);
1022 if (status < 0) {
Mark Fashehb4df6ed2006-02-22 17:35:08 -08001023 if (status != -EDEADLK)
1024 mlog_errno(status);
Mark Fashehccd979b2005-12-15 14:31:24 -08001025 goto bail_unlock_inode;
1026 }
1027
Mark Fasheh24c19ef2006-09-22 17:28:19 -07001028 /*
1029 * Mark the inode as successfully deleted.
1030 *
1031 * This is important for ocfs2_clear_inode() as it will check
1032 * this flag and skip any checkpointing work
1033 *
1034 * ocfs2_stuff_meta_lvb() also uses this flag to invalidate
1035 * the LVB for other nodes.
1036 */
Mark Fashehccd979b2005-12-15 14:31:24 -08001037 OCFS2_I(inode)->ip_flags |= OCFS2_INODE_DELETED;
1038
1039bail_unlock_inode:
Mark Fashehe63aecb62007-10-18 15:30:42 -07001040 ocfs2_inode_unlock(inode, 1);
Mark Fashehccd979b2005-12-15 14:31:24 -08001041 brelse(di_bh);
wengang wang6ca497a2009-03-06 21:29:10 +08001042
1043bail_unlock_nfs_sync:
1044 ocfs2_nfs_sync_unlock(OCFS2_SB(inode->i_sb), 0);
1045
Mark Fashehccd979b2005-12-15 14:31:24 -08001046bail_unblock:
1047 status = sigprocmask(SIG_SETMASK, &oldset, NULL);
1048 if (status < 0)
1049 mlog_errno(status);
1050bail:
1051 clear_inode(inode);
1052 mlog_exit_void();
1053}
1054
1055void ocfs2_clear_inode(struct inode *inode)
1056{
1057 int status;
1058 struct ocfs2_inode_info *oi = OCFS2_I(inode);
1059
1060 mlog_entry_void();
1061
1062 if (!inode)
1063 goto bail;
1064
Mark Fashehb0697052006-03-03 10:24:33 -08001065 mlog(0, "Clearing inode: %llu, nlink = %u\n",
1066 (unsigned long long)OCFS2_I(inode)->ip_blkno, inode->i_nlink);
Mark Fashehccd979b2005-12-15 14:31:24 -08001067
1068 mlog_bug_on_msg(OCFS2_SB(inode->i_sb) == NULL,
1069 "Inode=%lu\n", inode->i_ino);
1070
Mark Fasheh34d024f2007-09-24 15:56:19 -07001071 /* To preven remote deletes we hold open lock before, now it
1072 * is time to unlock PR and EX open locks. */
Tiger Yang50008632007-03-20 16:01:38 -07001073 ocfs2_open_unlock(inode);
1074
Mark Fashehccd979b2005-12-15 14:31:24 -08001075 /* Do these before all the other work so that we don't bounce
Mark Fasheh34d024f2007-09-24 15:56:19 -07001076 * the downconvert thread while waiting to destroy the locks. */
Mark Fashehccd979b2005-12-15 14:31:24 -08001077 ocfs2_mark_lockres_freeing(&oi->ip_rw_lockres);
Mark Fashehe63aecb62007-10-18 15:30:42 -07001078 ocfs2_mark_lockres_freeing(&oi->ip_inode_lockres);
Tiger Yang50008632007-03-20 16:01:38 -07001079 ocfs2_mark_lockres_freeing(&oi->ip_open_lockres);
Mark Fashehccd979b2005-12-15 14:31:24 -08001080
1081 /* We very well may get a clear_inode before all an inodes
1082 * metadata has hit disk. Of course, we can't drop any cluster
1083 * locks until the journal has finished with it. The only
1084 * exception here are successfully wiped inodes - their
1085 * metadata can now be considered to be part of the system
1086 * inodes from which it came. */
1087 if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED))
1088 ocfs2_checkpoint_inode(inode);
1089
1090 mlog_bug_on_msg(!list_empty(&oi->ip_io_markers),
Mark Fashehb0697052006-03-03 10:24:33 -08001091 "Clear inode of %llu, inode has io markers\n",
1092 (unsigned long long)oi->ip_blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -08001093
Mark Fasheh83418972007-04-23 18:53:12 -07001094 ocfs2_extent_map_trunc(inode, 0);
1095
Mark Fashehccd979b2005-12-15 14:31:24 -08001096 status = ocfs2_drop_inode_locks(inode);
1097 if (status < 0)
1098 mlog_errno(status);
1099
1100 ocfs2_lock_res_free(&oi->ip_rw_lockres);
Mark Fashehe63aecb62007-10-18 15:30:42 -07001101 ocfs2_lock_res_free(&oi->ip_inode_lockres);
Tiger Yang50008632007-03-20 16:01:38 -07001102 ocfs2_lock_res_free(&oi->ip_open_lockres);
Mark Fashehccd979b2005-12-15 14:31:24 -08001103
1104 ocfs2_metadata_cache_purge(inode);
1105
1106 mlog_bug_on_msg(oi->ip_metadata_cache.ci_num_cached,
Mark Fashehb0697052006-03-03 10:24:33 -08001107 "Clear inode of %llu, inode has %u cache items\n",
1108 (unsigned long long)oi->ip_blkno, oi->ip_metadata_cache.ci_num_cached);
Mark Fashehccd979b2005-12-15 14:31:24 -08001109
1110 mlog_bug_on_msg(!(oi->ip_flags & OCFS2_INODE_CACHE_INLINE),
Mark Fashehb0697052006-03-03 10:24:33 -08001111 "Clear inode of %llu, inode has a bad flag\n",
1112 (unsigned long long)oi->ip_blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -08001113
1114 mlog_bug_on_msg(spin_is_locked(&oi->ip_lock),
Mark Fashehb0697052006-03-03 10:24:33 -08001115 "Clear inode of %llu, inode is locked\n",
1116 (unsigned long long)oi->ip_blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -08001117
Mark Fasheh251b6ec2006-01-10 15:41:43 -08001118 mlog_bug_on_msg(!mutex_trylock(&oi->ip_io_mutex),
Mark Fashehb0697052006-03-03 10:24:33 -08001119 "Clear inode of %llu, io_mutex is locked\n",
1120 (unsigned long long)oi->ip_blkno);
Mark Fasheh251b6ec2006-01-10 15:41:43 -08001121 mutex_unlock(&oi->ip_io_mutex);
Mark Fashehccd979b2005-12-15 14:31:24 -08001122
1123 /*
1124 * down_trylock() returns 0, down_write_trylock() returns 1
1125 * kernel 1, world 0
1126 */
1127 mlog_bug_on_msg(!down_write_trylock(&oi->ip_alloc_sem),
Mark Fashehb0697052006-03-03 10:24:33 -08001128 "Clear inode of %llu, alloc_sem is locked\n",
1129 (unsigned long long)oi->ip_blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -08001130 up_write(&oi->ip_alloc_sem);
1131
1132 mlog_bug_on_msg(oi->ip_open_count,
Mark Fashehb0697052006-03-03 10:24:33 -08001133 "Clear inode of %llu has open count %d\n",
1134 (unsigned long long)oi->ip_blkno, oi->ip_open_count);
Mark Fashehccd979b2005-12-15 14:31:24 -08001135
1136 /* Clear all other flags. */
1137 oi->ip_flags = OCFS2_INODE_CACHE_INLINE;
1138 oi->ip_created_trans = 0;
1139 oi->ip_last_trans = 0;
1140 oi->ip_dir_start_lookup = 0;
1141 oi->ip_blkno = 0ULL;
Sunil Mushranae0dff62008-10-22 13:24:29 -07001142
1143 /*
1144 * ip_jinode is used to track txns against this inode. We ensure that
1145 * the journal is flushed before journal shutdown. Thus it is safe to
1146 * have inodes get cleaned up after journal shutdown.
1147 */
Joel Becker2b4e30f2008-09-03 20:03:41 -07001148 jbd2_journal_release_jbd_inode(OCFS2_SB(inode->i_sb)->journal->j_journal,
1149 &oi->ip_jinode);
Mark Fashehccd979b2005-12-15 14:31:24 -08001150
1151bail:
1152 mlog_exit_void();
1153}
1154
1155/* Called under inode_lock, with no more references on the
1156 * struct inode, so it's safe here to check the flags field
1157 * and to manipulate i_nlink without any other locks. */
1158void ocfs2_drop_inode(struct inode *inode)
1159{
1160 struct ocfs2_inode_info *oi = OCFS2_I(inode);
1161
1162 mlog_entry_void();
1163
Mark Fashehb0697052006-03-03 10:24:33 -08001164 mlog(0, "Drop inode %llu, nlink = %u, ip_flags = 0x%x\n",
1165 (unsigned long long)oi->ip_blkno, inode->i_nlink, oi->ip_flags);
Mark Fashehccd979b2005-12-15 14:31:24 -08001166
Mark Fasheh379dfe92006-09-08 14:21:03 -07001167 if (oi->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)
1168 generic_delete_inode(inode);
1169 else
1170 generic_drop_inode(inode);
Mark Fashehccd979b2005-12-15 14:31:24 -08001171
1172 mlog_exit_void();
1173}
1174
1175/*
Mark Fashehccd979b2005-12-15 14:31:24 -08001176 * This is called from our getattr.
1177 */
1178int ocfs2_inode_revalidate(struct dentry *dentry)
1179{
1180 struct inode *inode = dentry->d_inode;
1181 int status = 0;
1182
Mark Fashehb0697052006-03-03 10:24:33 -08001183 mlog_entry("(inode = 0x%p, ino = %llu)\n", inode,
1184 inode ? (unsigned long long)OCFS2_I(inode)->ip_blkno : 0ULL);
Mark Fashehccd979b2005-12-15 14:31:24 -08001185
1186 if (!inode) {
1187 mlog(0, "eep, no inode!\n");
1188 status = -ENOENT;
1189 goto bail;
1190 }
1191
1192 spin_lock(&OCFS2_I(inode)->ip_lock);
1193 if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) {
1194 spin_unlock(&OCFS2_I(inode)->ip_lock);
1195 mlog(0, "inode deleted!\n");
1196 status = -ENOENT;
1197 goto bail;
1198 }
1199 spin_unlock(&OCFS2_I(inode)->ip_lock);
1200
Mark Fashehe63aecb62007-10-18 15:30:42 -07001201 /* Let ocfs2_inode_lock do the work of updating our struct
Mark Fashehccd979b2005-12-15 14:31:24 -08001202 * inode for us. */
Mark Fashehe63aecb62007-10-18 15:30:42 -07001203 status = ocfs2_inode_lock(inode, NULL, 0);
Mark Fashehccd979b2005-12-15 14:31:24 -08001204 if (status < 0) {
1205 if (status != -ENOENT)
1206 mlog_errno(status);
1207 goto bail;
1208 }
Mark Fashehe63aecb62007-10-18 15:30:42 -07001209 ocfs2_inode_unlock(inode, 0);
Mark Fashehccd979b2005-12-15 14:31:24 -08001210bail:
1211 mlog_exit(status);
1212
1213 return status;
1214}
1215
1216/*
1217 * Updates a disk inode from a
1218 * struct inode.
1219 * Only takes ip_lock.
1220 */
Mark Fasheh1fabe142006-10-09 18:11:45 -07001221int ocfs2_mark_inode_dirty(handle_t *handle,
Mark Fashehccd979b2005-12-15 14:31:24 -08001222 struct inode *inode,
1223 struct buffer_head *bh)
1224{
1225 int status;
1226 struct ocfs2_dinode *fe = (struct ocfs2_dinode *) bh->b_data;
1227
Mark Fashehb0697052006-03-03 10:24:33 -08001228 mlog_entry("(inode %llu)\n",
1229 (unsigned long long)OCFS2_I(inode)->ip_blkno);
Mark Fashehccd979b2005-12-15 14:31:24 -08001230
Joel Becker13723d02008-10-17 19:25:01 -07001231 status = ocfs2_journal_access_di(handle, inode, bh,
1232 OCFS2_JOURNAL_ACCESS_WRITE);
Mark Fashehccd979b2005-12-15 14:31:24 -08001233 if (status < 0) {
1234 mlog_errno(status);
1235 goto leave;
1236 }
1237
1238 spin_lock(&OCFS2_I(inode)->ip_lock);
1239 fe->i_clusters = cpu_to_le32(OCFS2_I(inode)->ip_clusters);
Jan Kara6e4b0d52007-04-27 11:08:01 -07001240 ocfs2_get_inode_flags(OCFS2_I(inode));
Herbert Poetzlca4d1472006-07-03 17:27:12 -07001241 fe->i_attr = cpu_to_le32(OCFS2_I(inode)->ip_attr);
Mark Fasheh15b1e362007-09-07 13:58:15 -07001242 fe->i_dyn_features = cpu_to_le16(OCFS2_I(inode)->ip_dyn_features);
Mark Fashehccd979b2005-12-15 14:31:24 -08001243 spin_unlock(&OCFS2_I(inode)->ip_lock);
1244
1245 fe->i_size = cpu_to_le64(i_size_read(inode));
Mark Fasheh198a1ca2008-11-20 17:54:57 -08001246 ocfs2_set_links_count(fe, inode->i_nlink);
Mark Fashehccd979b2005-12-15 14:31:24 -08001247 fe->i_uid = cpu_to_le32(inode->i_uid);
1248 fe->i_gid = cpu_to_le32(inode->i_gid);
1249 fe->i_mode = cpu_to_le16(inode->i_mode);
1250 fe->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
1251 fe->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
1252 fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
1253 fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
1254 fe->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
1255 fe->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
1256
1257 status = ocfs2_journal_dirty(handle, bh);
1258 if (status < 0)
1259 mlog_errno(status);
1260
1261 status = 0;
1262leave:
1263
1264 mlog_exit(status);
1265 return status;
1266}
1267
1268/*
1269 *
1270 * Updates a struct inode from a disk inode.
1271 * does no i/o, only takes ip_lock.
1272 */
1273void ocfs2_refresh_inode(struct inode *inode,
1274 struct ocfs2_dinode *fe)
1275{
Mark Fashehccd979b2005-12-15 14:31:24 -08001276 spin_lock(&OCFS2_I(inode)->ip_lock);
1277
1278 OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
Herbert Poetzlca4d1472006-07-03 17:27:12 -07001279 OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
Mark Fasheh15b1e362007-09-07 13:58:15 -07001280 OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features);
Herbert Poetzlca4d1472006-07-03 17:27:12 -07001281 ocfs2_set_inode_flags(inode);
Mark Fashehccd979b2005-12-15 14:31:24 -08001282 i_size_write(inode, le64_to_cpu(fe->i_size));
Mark Fasheh198a1ca2008-11-20 17:54:57 -08001283 inode->i_nlink = ocfs2_read_links_count(fe);
Mark Fashehccd979b2005-12-15 14:31:24 -08001284 inode->i_uid = le32_to_cpu(fe->i_uid);
1285 inode->i_gid = le32_to_cpu(fe->i_gid);
1286 inode->i_mode = le16_to_cpu(fe->i_mode);
Mark Fashehccd979b2005-12-15 14:31:24 -08001287 if (S_ISLNK(inode->i_mode) && le32_to_cpu(fe->i_clusters) == 0)
1288 inode->i_blocks = 0;
1289 else
Mark Fasheh8110b072007-03-22 16:53:23 -07001290 inode->i_blocks = ocfs2_inode_sector_count(inode);
Mark Fashehccd979b2005-12-15 14:31:24 -08001291 inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime);
1292 inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec);
1293 inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime);
1294 inode->i_mtime.tv_nsec = le32_to_cpu(fe->i_mtime_nsec);
1295 inode->i_ctime.tv_sec = le64_to_cpu(fe->i_ctime);
1296 inode->i_ctime.tv_nsec = le32_to_cpu(fe->i_ctime_nsec);
1297
1298 spin_unlock(&OCFS2_I(inode)->ip_lock);
1299}
Joel Beckerb657c952008-11-13 14:49:11 -08001300
1301int ocfs2_validate_inode_block(struct super_block *sb,
1302 struct buffer_head *bh)
1303{
Joel Beckerd6b32bb2008-10-17 14:55:01 -07001304 int rc;
Joel Beckerb657c952008-11-13 14:49:11 -08001305 struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
1306
Joel Becker970e4932008-11-13 14:49:19 -08001307 mlog(0, "Validating dinode %llu\n",
1308 (unsigned long long)bh->b_blocknr);
1309
Joel Beckerb657c952008-11-13 14:49:11 -08001310 BUG_ON(!buffer_uptodate(bh));
1311
Joel Beckerd6b32bb2008-10-17 14:55:01 -07001312 /*
1313 * If the ecc fails, we return the error but otherwise
1314 * leave the filesystem running. We know any error is
1315 * local to this block.
1316 */
1317 rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check);
Joel Becker13723d02008-10-17 19:25:01 -07001318 if (rc) {
1319 mlog(ML_ERROR, "Checksum failed for dinode %llu\n",
1320 (unsigned long long)bh->b_blocknr);
Joel Beckerd6b32bb2008-10-17 14:55:01 -07001321 goto bail;
Joel Becker13723d02008-10-17 19:25:01 -07001322 }
Joel Beckerd6b32bb2008-10-17 14:55:01 -07001323
1324 /*
1325 * Errors after here are fatal.
1326 */
1327
1328 rc = -EINVAL;
1329
Joel Beckerb657c952008-11-13 14:49:11 -08001330 if (!OCFS2_IS_VALID_DINODE(di)) {
1331 ocfs2_error(sb, "Invalid dinode #%llu: signature = %.*s\n",
1332 (unsigned long long)bh->b_blocknr, 7,
1333 di->i_signature);
1334 goto bail;
1335 }
1336
1337 if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) {
1338 ocfs2_error(sb, "Invalid dinode #%llu: i_blkno is %llu\n",
1339 (unsigned long long)bh->b_blocknr,
1340 (unsigned long long)le64_to_cpu(di->i_blkno));
1341 goto bail;
1342 }
1343
1344 if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) {
1345 ocfs2_error(sb,
1346 "Invalid dinode #%llu: OCFS2_VALID_FL not set\n",
1347 (unsigned long long)bh->b_blocknr);
1348 goto bail;
1349 }
1350
1351 if (le32_to_cpu(di->i_fs_generation) !=
1352 OCFS2_SB(sb)->fs_generation) {
1353 ocfs2_error(sb,
1354 "Invalid dinode #%llu: fs_generation is %u\n",
1355 (unsigned long long)bh->b_blocknr,
1356 le32_to_cpu(di->i_fs_generation));
1357 goto bail;
1358 }
1359
1360 rc = 0;
1361
1362bail:
1363 return rc;
1364}
1365
1366int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh,
1367 int flags)
1368{
1369 int rc;
1370 struct buffer_head *tmp = *bh;
1371
1372 rc = ocfs2_read_blocks(inode, OCFS2_I(inode)->ip_blkno, 1, &tmp,
Joel Becker970e4932008-11-13 14:49:19 -08001373 flags, ocfs2_validate_inode_block);
Joel Beckerb657c952008-11-13 14:49:11 -08001374
1375 /* If ocfs2_read_blocks() got us a new bh, pass it up. */
Joel Becker970e4932008-11-13 14:49:19 -08001376 if (!rc && !*bh)
Joel Beckerb657c952008-11-13 14:49:11 -08001377 *bh = tmp;
1378
Joel Beckerb657c952008-11-13 14:49:11 -08001379 return rc;
1380}
1381
1382int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh)
1383{
1384 return ocfs2_read_inode_block_full(inode, bh, 0);
1385}