1 /* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
6 * vfs' aops, fops, dops and iops
8 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
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.
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.
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.
27 #include <linux/types.h>
28 #include <linux/highmem.h>
29 #include <linux/pagemap.h>
30 #include <linux/quotaops.h>
32 #include <asm/byteorder.h>
34 #include <cluster/masklog.h>
40 #include "blockcheck.h"
42 #include "extent_map.h"
44 #include "heartbeat.h"
54 #include "refcounttree.h"
55 #include "ocfs2_trace.h"
56 #include "filecheck.h"
58 #include "buffer_head_io.h"
60 struct ocfs2_find_inode_args
64 unsigned int fi_flags;
65 unsigned int fi_sysfile_type;
68 static struct lock_class_key ocfs2_sysfile_lock_key[NUM_SYSTEM_INODES];
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,
76 struct buffer_head *fe_bh);
78 static int ocfs2_filecheck_read_inode_block_full(struct inode *inode,
79 struct buffer_head **bh,
81 static int ocfs2_filecheck_validate_inode_block(struct super_block *sb,
82 struct buffer_head *bh);
83 static int ocfs2_filecheck_repair_inode_block(struct super_block *sb,
84 struct buffer_head *bh);
86 void ocfs2_set_inode_flags(struct inode *inode)
88 unsigned int flags = OCFS2_I(inode)->ip_attr;
90 inode->i_flags &= ~(S_IMMUTABLE |
91 S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
93 if (flags & OCFS2_IMMUTABLE_FL)
94 inode->i_flags |= S_IMMUTABLE;
96 if (flags & OCFS2_SYNC_FL)
97 inode->i_flags |= S_SYNC;
98 if (flags & OCFS2_APPEND_FL)
99 inode->i_flags |= S_APPEND;
100 if (flags & OCFS2_NOATIME_FL)
101 inode->i_flags |= S_NOATIME;
102 if (flags & OCFS2_DIRSYNC_FL)
103 inode->i_flags |= S_DIRSYNC;
106 /* Propagate flags from i_flags to OCFS2_I(inode)->ip_attr */
107 void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi)
109 unsigned int flags = oi->vfs_inode.i_flags;
111 oi->ip_attr &= ~(OCFS2_SYNC_FL|OCFS2_APPEND_FL|
112 OCFS2_IMMUTABLE_FL|OCFS2_NOATIME_FL|OCFS2_DIRSYNC_FL);
114 oi->ip_attr |= OCFS2_SYNC_FL;
115 if (flags & S_APPEND)
116 oi->ip_attr |= OCFS2_APPEND_FL;
117 if (flags & S_IMMUTABLE)
118 oi->ip_attr |= OCFS2_IMMUTABLE_FL;
119 if (flags & S_NOATIME)
120 oi->ip_attr |= OCFS2_NOATIME_FL;
121 if (flags & S_DIRSYNC)
122 oi->ip_attr |= OCFS2_DIRSYNC_FL;
125 struct inode *ocfs2_ilookup(struct super_block *sb, u64 blkno)
127 struct ocfs2_find_inode_args args;
129 args.fi_blkno = blkno;
131 args.fi_ino = ino_from_blkno(sb, blkno);
132 args.fi_sysfile_type = 0;
134 return ilookup5(sb, blkno, ocfs2_find_actor, &args);
136 struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags,
140 struct inode *inode = NULL;
141 struct super_block *sb = osb->sb;
142 struct ocfs2_find_inode_args args;
143 journal_t *journal = OCFS2_SB(sb)->journal->j_journal;
145 trace_ocfs2_iget_begin((unsigned long long)blkno, flags,
148 /* Ok. By now we've either got the offsets passed to us by the
149 * caller, or we just pulled them off the bh. Lets do some
150 * sanity checks to make sure they're OK. */
152 inode = ERR_PTR(-EINVAL);
153 mlog_errno(PTR_ERR(inode));
157 args.fi_blkno = blkno;
158 args.fi_flags = flags;
159 args.fi_ino = ino_from_blkno(sb, blkno);
160 args.fi_sysfile_type = sysfile_type;
162 inode = iget5_locked(sb, args.fi_ino, ocfs2_find_actor,
163 ocfs2_init_locked_inode, &args);
164 /* inode was *not* in the inode cache. 2.6.x requires
165 * us to do our own read_inode call and unlock it
168 inode = ERR_PTR(-ENOMEM);
169 mlog_errno(PTR_ERR(inode));
172 trace_ocfs2_iget5_locked(inode->i_state);
173 if (inode->i_state & I_NEW) {
174 rc = ocfs2_read_locked_inode(inode, &args);
175 unlock_new_inode(inode);
177 if (is_bad_inode(inode)) {
179 if ((flags & OCFS2_FI_FLAG_FILECHECK_CHK) ||
180 (flags & OCFS2_FI_FLAG_FILECHECK_FIX))
181 /* Return OCFS2_FILECHECK_ERR_XXX related errno */
184 inode = ERR_PTR(-ESTALE);
189 * Set transaction id's of transactions that have to be committed
190 * to finish f[data]sync. We set them to currently running transaction
191 * as we cannot be sure that the inode or some of its metadata isn't
192 * part of the transaction - the inode could have been reclaimed and
193 * now it is reread from disk.
196 transaction_t *transaction;
198 struct ocfs2_inode_info *oi = OCFS2_I(inode);
200 read_lock(&journal->j_state_lock);
201 if (journal->j_running_transaction)
202 transaction = journal->j_running_transaction;
204 transaction = journal->j_committing_transaction;
206 tid = transaction->t_tid;
208 tid = journal->j_commit_sequence;
209 read_unlock(&journal->j_state_lock);
210 oi->i_sync_tid = tid;
211 oi->i_datasync_tid = tid;
215 if (!IS_ERR(inode)) {
216 trace_ocfs2_iget_end(inode,
217 (unsigned long long)OCFS2_I(inode)->ip_blkno);
225 * here's how inodes get read from disk:
226 * iget5_locked -> find_actor -> OCFS2_FIND_ACTOR
227 * found? : return the in-memory inode
228 * not found? : get_new_inode -> OCFS2_INIT_LOCKED_INODE
231 static int ocfs2_find_actor(struct inode *inode, void *opaque)
233 struct ocfs2_find_inode_args *args = NULL;
234 struct ocfs2_inode_info *oi = OCFS2_I(inode);
239 mlog_bug_on_msg(!inode, "No inode in find actor!\n");
241 trace_ocfs2_find_actor(inode, inode->i_ino, opaque, args->fi_blkno);
243 if (oi->ip_blkno != args->fi_blkno)
252 * initialize the new inode, but don't do anything that would cause
254 * return 0 on success, 1 on failure
256 static int ocfs2_init_locked_inode(struct inode *inode, void *opaque)
258 struct ocfs2_find_inode_args *args = opaque;
259 static struct lock_class_key ocfs2_quota_ip_alloc_sem_key,
260 ocfs2_file_ip_alloc_sem_key;
262 inode->i_ino = args->fi_ino;
263 OCFS2_I(inode)->ip_blkno = args->fi_blkno;
264 if (args->fi_sysfile_type != 0)
265 lockdep_set_class(&inode->i_mutex,
266 &ocfs2_sysfile_lock_key[args->fi_sysfile_type]);
267 if (args->fi_sysfile_type == USER_QUOTA_SYSTEM_INODE ||
268 args->fi_sysfile_type == GROUP_QUOTA_SYSTEM_INODE ||
269 args->fi_sysfile_type == LOCAL_USER_QUOTA_SYSTEM_INODE ||
270 args->fi_sysfile_type == LOCAL_GROUP_QUOTA_SYSTEM_INODE)
271 lockdep_set_class(&OCFS2_I(inode)->ip_alloc_sem,
272 &ocfs2_quota_ip_alloc_sem_key);
274 lockdep_set_class(&OCFS2_I(inode)->ip_alloc_sem,
275 &ocfs2_file_ip_alloc_sem_key);
280 void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
283 struct super_block *sb;
284 struct ocfs2_super *osb;
290 if ((osb->s_mount_opt & OCFS2_MOUNT_LOCALFLOCKS) ||
291 ocfs2_mount_local(osb) || !ocfs2_stack_supports_plocks())
295 * These have all been checked by ocfs2_read_inode_block() or set
296 * by ocfs2_mknod_locked(), so a failure is a code bug.
298 BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); /* This means that read_inode
299 cannot create a superblock
300 inode today. change if
302 BUG_ON(!(fe->i_flags & cpu_to_le32(OCFS2_VALID_FL)));
303 BUG_ON(le32_to_cpu(fe->i_fs_generation) != osb->fs_generation);
306 OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
307 OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
308 OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features);
310 inode->i_version = 1;
311 inode->i_generation = le32_to_cpu(fe->i_generation);
312 inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev));
313 inode->i_mode = le16_to_cpu(fe->i_mode);
314 i_uid_write(inode, le32_to_cpu(fe->i_uid));
315 i_gid_write(inode, le32_to_cpu(fe->i_gid));
317 /* Fast symlinks will have i_size but no allocated clusters. */
318 if (S_ISLNK(inode->i_mode) && !fe->i_clusters) {
320 inode->i_mapping->a_ops = &ocfs2_fast_symlink_aops;
322 inode->i_blocks = ocfs2_inode_sector_count(inode);
323 inode->i_mapping->a_ops = &ocfs2_aops;
325 inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime);
326 inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec);
327 inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime);
328 inode->i_mtime.tv_nsec = le32_to_cpu(fe->i_mtime_nsec);
329 inode->i_ctime.tv_sec = le64_to_cpu(fe->i_ctime);
330 inode->i_ctime.tv_nsec = le32_to_cpu(fe->i_ctime_nsec);
332 if (OCFS2_I(inode)->ip_blkno != le64_to_cpu(fe->i_blkno))
334 "ip_blkno %llu != i_blkno %llu!\n",
335 (unsigned long long)OCFS2_I(inode)->ip_blkno,
336 (unsigned long long)le64_to_cpu(fe->i_blkno));
338 set_nlink(inode, ocfs2_read_links_count(fe));
340 trace_ocfs2_populate_inode(OCFS2_I(inode)->ip_blkno,
341 le32_to_cpu(fe->i_flags));
342 if (fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) {
343 OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SYSTEM_FILE;
344 inode->i_flags |= S_NOQUOTA;
347 if (fe->i_flags & cpu_to_le32(OCFS2_LOCAL_ALLOC_FL)) {
348 OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP;
349 } else if (fe->i_flags & cpu_to_le32(OCFS2_BITMAP_FL)) {
350 OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP;
351 } else if (fe->i_flags & cpu_to_le32(OCFS2_QUOTA_FL)) {
352 inode->i_flags |= S_NOQUOTA;
353 } else if (fe->i_flags & cpu_to_le32(OCFS2_SUPER_BLOCK_FL)) {
354 /* we can't actually hit this as read_inode can't
355 * handle superblocks today ;-) */
359 switch (inode->i_mode & S_IFMT) {
362 inode->i_fop = &ocfs2_fops;
364 inode->i_fop = &ocfs2_fops_no_plocks;
365 inode->i_op = &ocfs2_file_iops;
366 i_size_write(inode, le64_to_cpu(fe->i_size));
369 inode->i_op = &ocfs2_dir_iops;
371 inode->i_fop = &ocfs2_dops;
373 inode->i_fop = &ocfs2_dops_no_plocks;
374 i_size_write(inode, le64_to_cpu(fe->i_size));
375 OCFS2_I(inode)->ip_dir_lock_gen = 1;
378 inode->i_op = &ocfs2_symlink_inode_operations;
379 inode_nohighmem(inode);
380 i_size_write(inode, le64_to_cpu(fe->i_size));
383 inode->i_op = &ocfs2_special_file_iops;
384 init_special_inode(inode, inode->i_mode,
390 inode->i_ino = ino_from_blkno(inode->i_sb,
391 le64_to_cpu(fe->i_blkno));
394 * If we ever want to create system files from kernel,
395 * the generation argument to
396 * ocfs2_inode_lock_res_init() will have to change.
398 BUG_ON(le32_to_cpu(fe->i_flags) & OCFS2_SYSTEM_FL);
400 ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres,
401 OCFS2_LOCK_TYPE_META, 0, inode);
403 ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres,
404 OCFS2_LOCK_TYPE_OPEN, 0, inode);
407 ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_rw_lockres,
408 OCFS2_LOCK_TYPE_RW, inode->i_generation,
411 ocfs2_set_inode_flags(inode);
413 OCFS2_I(inode)->ip_last_used_slot = 0;
414 OCFS2_I(inode)->ip_last_used_group = 0;
416 if (S_ISDIR(inode->i_mode))
417 ocfs2_resv_set_type(&OCFS2_I(inode)->ip_la_data_resv,
418 OCFS2_RESV_FLAG_DIR);
421 static int ocfs2_read_locked_inode(struct inode *inode,
422 struct ocfs2_find_inode_args *args)
424 struct super_block *sb;
425 struct ocfs2_super *osb;
426 struct ocfs2_dinode *fe;
427 struct buffer_head *bh = NULL;
428 int status, can_lock, lock_level = 0;
436 * To improve performance of cold-cache inode stats, we take
437 * the cluster lock here if possible.
439 * Generally, OCFS2 never trusts the contents of an inode
440 * unless it's holding a cluster lock, so taking it here isn't
441 * a correctness issue as much as it is a performance
444 * There are three times when taking the lock is not a good idea:
446 * 1) During startup, before we have initialized the DLM.
448 * 2) If we are reading certain system files which never get
449 * cluster locks (local alloc, truncate log).
451 * 3) If the process doing the iget() is responsible for
452 * orphan dir recovery. We're holding the orphan dir lock and
453 * can get into a deadlock with another process on another
454 * node in ->delete_inode().
456 * #1 and #2 can be simply solved by never taking the lock
457 * here for system files (which are the only type we read
458 * during mount). It's a heavier approach, but our main
459 * concern is user-accessible files anyway.
461 * #3 works itself out because we'll eventually take the
462 * cluster lock before trusting anything anyway.
464 can_lock = !(args->fi_flags & OCFS2_FI_FLAG_SYSFILE)
465 && !(args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY)
466 && !ocfs2_mount_local(osb);
468 trace_ocfs2_read_locked_inode(
469 (unsigned long long)OCFS2_I(inode)->ip_blkno, can_lock);
472 * To maintain backwards compatibility with older versions of
473 * ocfs2-tools, we still store the generation value for system
474 * files. The only ones that actually matter to userspace are
475 * the journals, but it's easier and inexpensive to just flag
476 * all system files similarly.
478 if (args->fi_flags & OCFS2_FI_FLAG_SYSFILE)
479 generation = osb->fs_generation;
481 ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_inode_lockres,
482 OCFS2_LOCK_TYPE_META,
485 ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres,
486 OCFS2_LOCK_TYPE_OPEN,
490 status = ocfs2_open_lock(inode);
492 make_bad_inode(inode);
496 status = ocfs2_inode_lock(inode, NULL, lock_level);
498 make_bad_inode(inode);
504 if (args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) {
505 status = ocfs2_try_open_lock(inode, 0);
507 make_bad_inode(inode);
513 if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_CHK)
514 status = ocfs2_filecheck_read_inode_block_full(inode,
515 &bh, OCFS2_BH_IGNORE_CACHE, 0);
516 else if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_FIX)
517 status = ocfs2_filecheck_read_inode_block_full(inode,
518 &bh, OCFS2_BH_IGNORE_CACHE, 1);
520 status = ocfs2_read_inode_block_full(inode,
521 &bh, OCFS2_BH_IGNORE_CACHE);
523 status = ocfs2_read_blocks_sync(osb, args->fi_blkno, 1, &bh);
525 * If buffer is in jbd, then its checksum may not have been
528 if (!status && !buffer_jbd(bh)) {
529 if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_CHK)
530 status = ocfs2_filecheck_validate_inode_block(
532 else if (args->fi_flags & OCFS2_FI_FLAG_FILECHECK_FIX)
533 status = ocfs2_filecheck_repair_inode_block(
536 status = ocfs2_validate_inode_block(
546 fe = (struct ocfs2_dinode *) bh->b_data;
549 * This is a code bug. Right now the caller needs to
550 * understand whether it is asking for a system file inode or
551 * not so the proper lock names can be built.
553 mlog_bug_on_msg(!!(fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) !=
554 !!(args->fi_flags & OCFS2_FI_FLAG_SYSFILE),
555 "Inode %llu: system file state is ambigous\n",
556 (unsigned long long)args->fi_blkno);
558 if (S_ISCHR(le16_to_cpu(fe->i_mode)) ||
559 S_ISBLK(le16_to_cpu(fe->i_mode)))
560 inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev));
562 ocfs2_populate_inode(inode, fe, 0);
564 BUG_ON(args->fi_blkno != le64_to_cpu(fe->i_blkno));
566 if (buffer_dirty(bh) && !buffer_jbd(bh)) {
568 ocfs2_inode_unlock(inode, lock_level);
570 ocfs2_inode_lock(inode, NULL, lock_level);
572 status = ocfs2_write_block(osb, bh, INODE_CACHE(inode));
583 ocfs2_inode_unlock(inode, lock_level);
586 make_bad_inode(inode);
593 void ocfs2_sync_blockdev(struct super_block *sb)
595 sync_blockdev(sb->s_bdev);
598 static int ocfs2_truncate_for_delete(struct ocfs2_super *osb,
600 struct buffer_head *fe_bh)
603 struct ocfs2_dinode *fe;
604 handle_t *handle = NULL;
606 fe = (struct ocfs2_dinode *) fe_bh->b_data;
609 * This check will also skip truncate of inodes with inline
610 * data and fast symlinks.
612 if (fe->i_clusters) {
613 if (ocfs2_should_order_data(inode))
614 ocfs2_begin_ordered_truncate(inode, 0);
616 handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
617 if (IS_ERR(handle)) {
618 status = PTR_ERR(handle);
624 status = ocfs2_journal_access_di(handle, INODE_CACHE(inode),
626 OCFS2_JOURNAL_ACCESS_WRITE);
632 i_size_write(inode, 0);
634 status = ocfs2_mark_inode_dirty(handle, inode, fe_bh);
640 ocfs2_commit_trans(osb, handle);
643 status = ocfs2_commit_truncate(osb, inode, fe_bh);
652 ocfs2_commit_trans(osb, handle);
656 static int ocfs2_remove_inode(struct inode *inode,
657 struct buffer_head *di_bh,
658 struct inode *orphan_dir_inode,
659 struct buffer_head *orphan_dir_bh)
662 struct inode *inode_alloc_inode = NULL;
663 struct buffer_head *inode_alloc_bh = NULL;
665 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
666 struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data;
669 ocfs2_get_system_file_inode(osb, INODE_ALLOC_SYSTEM_INODE,
670 le16_to_cpu(di->i_suballoc_slot));
671 if (!inode_alloc_inode) {
677 inode_lock(inode_alloc_inode);
678 status = ocfs2_inode_lock(inode_alloc_inode, &inode_alloc_bh, 1);
680 inode_unlock(inode_alloc_inode);
686 handle = ocfs2_start_trans(osb, OCFS2_DELETE_INODE_CREDITS +
687 ocfs2_quota_trans_credits(inode->i_sb));
688 if (IS_ERR(handle)) {
689 status = PTR_ERR(handle);
694 if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) {
695 status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode,
696 orphan_dir_bh, false);
703 /* set the inodes dtime */
704 status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh,
705 OCFS2_JOURNAL_ACCESS_WRITE);
711 di->i_dtime = cpu_to_le64(CURRENT_TIME.tv_sec);
712 di->i_flags &= cpu_to_le32(~(OCFS2_VALID_FL | OCFS2_ORPHANED_FL));
713 ocfs2_journal_dirty(handle, di_bh);
715 ocfs2_remove_from_cache(INODE_CACHE(inode), di_bh);
716 dquot_free_inode(inode);
718 status = ocfs2_free_dinode(handle, inode_alloc_inode,
724 ocfs2_commit_trans(osb, handle);
726 ocfs2_inode_unlock(inode_alloc_inode, 1);
727 inode_unlock(inode_alloc_inode);
728 brelse(inode_alloc_bh);
730 iput(inode_alloc_inode);
736 * Serialize with orphan dir recovery. If the process doing
737 * recovery on this orphan dir does an iget() with the dir
738 * i_mutex held, we'll deadlock here. Instead we detect this
739 * and exit early - recovery will wipe this inode for us.
741 static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb,
746 spin_lock(&osb->osb_lock);
747 if (ocfs2_node_map_test_bit(osb, &osb->osb_recovering_orphan_dirs, slot)) {
751 /* This signals to the orphan recovery process that it should
752 * wait for us to handle the wipe. */
753 osb->osb_orphan_wipes[slot]++;
755 spin_unlock(&osb->osb_lock);
756 trace_ocfs2_check_orphan_recovery_state(slot, ret);
760 static void ocfs2_signal_wipe_completion(struct ocfs2_super *osb,
763 spin_lock(&osb->osb_lock);
764 osb->osb_orphan_wipes[slot]--;
765 spin_unlock(&osb->osb_lock);
767 wake_up(&osb->osb_wipe_event);
770 static int ocfs2_wipe_inode(struct inode *inode,
771 struct buffer_head *di_bh)
773 int status, orphaned_slot = -1;
774 struct inode *orphan_dir_inode = NULL;
775 struct buffer_head *orphan_dir_bh = NULL;
776 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
777 struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data;
779 if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) {
780 orphaned_slot = le16_to_cpu(di->i_orphaned_slot);
782 status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot);
786 orphan_dir_inode = ocfs2_get_system_file_inode(osb,
787 ORPHAN_DIR_SYSTEM_INODE,
789 if (!orphan_dir_inode) {
795 /* Lock the orphan dir. The lock will be held for the entire
796 * delete_inode operation. We do this now to avoid races with
797 * recovery completion on other nodes. */
798 inode_lock(orphan_dir_inode);
799 status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
801 inode_unlock(orphan_dir_inode);
808 /* we do this while holding the orphan dir lock because we
809 * don't want recovery being run from another node to try an
810 * inode delete underneath us -- this will result in two nodes
811 * truncating the same file! */
812 status = ocfs2_truncate_for_delete(osb, inode, di_bh);
815 goto bail_unlock_dir;
818 /* Remove any dir index tree */
819 if (S_ISDIR(inode->i_mode)) {
820 status = ocfs2_dx_dir_truncate(inode, di_bh);
823 goto bail_unlock_dir;
827 /*Free extended attribute resources associated with this inode.*/
828 status = ocfs2_xattr_remove(inode, di_bh);
831 goto bail_unlock_dir;
834 status = ocfs2_remove_refcount_tree(inode, di_bh);
837 goto bail_unlock_dir;
840 status = ocfs2_remove_inode(inode, di_bh, orphan_dir_inode,
846 if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)
849 ocfs2_inode_unlock(orphan_dir_inode, 1);
850 inode_unlock(orphan_dir_inode);
851 brelse(orphan_dir_bh);
853 iput(orphan_dir_inode);
854 ocfs2_signal_wipe_completion(osb, orphaned_slot);
859 /* There is a series of simple checks that should be done before a
860 * trylock is even considered. Encapsulate those in this function. */
861 static int ocfs2_inode_is_valid_to_delete(struct inode *inode)
864 struct ocfs2_inode_info *oi = OCFS2_I(inode);
865 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
867 trace_ocfs2_inode_is_valid_to_delete(current, osb->dc_task,
868 (unsigned long long)oi->ip_blkno,
871 /* We shouldn't be getting here for the root directory
873 if (inode == osb->root_inode) {
874 mlog(ML_ERROR, "Skipping delete of root inode.\n");
879 * If we're coming from downconvert_thread we can't go into our own
880 * voting [hello, deadlock city!] so we cannot delete the inode. But
881 * since we dropped last inode ref when downconverting dentry lock,
882 * we cannot have the file open and thus the node doing unlink will
883 * take care of deleting the inode.
885 if (current == osb->dc_task)
888 spin_lock(&oi->ip_lock);
889 /* OCFS2 *never* deletes system files. This should technically
890 * never get here as system file inodes should always have a
891 * positive link count. */
892 if (oi->ip_flags & OCFS2_INODE_SYSTEM_FILE) {
893 mlog(ML_ERROR, "Skipping delete of system file %llu\n",
894 (unsigned long long)oi->ip_blkno);
900 spin_unlock(&oi->ip_lock);
905 /* Query the cluster to determine whether we should wipe an inode from
908 * Requires the inode to have the cluster lock. */
909 static int ocfs2_query_inode_wipe(struct inode *inode,
910 struct buffer_head *di_bh,
913 int status = 0, reason = 0;
914 struct ocfs2_inode_info *oi = OCFS2_I(inode);
915 struct ocfs2_dinode *di;
919 trace_ocfs2_query_inode_wipe_begin((unsigned long long)oi->ip_blkno,
922 /* While we were waiting for the cluster lock in
923 * ocfs2_delete_inode, another node might have asked to delete
924 * the inode. Recheck our flags to catch this. */
925 if (!ocfs2_inode_is_valid_to_delete(inode)) {
930 /* Now that we have an up to date inode, we can double check
935 /* Do some basic inode verification... */
936 di = (struct ocfs2_dinode *) di_bh->b_data;
937 if (!(di->i_flags & cpu_to_le32(OCFS2_ORPHANED_FL)) &&
938 !(oi->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) {
940 * Inodes in the orphan dir must have ORPHANED_FL. The only
941 * inodes that come back out of the orphan dir are reflink
942 * targets. A reflink target may be moved out of the orphan
943 * dir between the time we scan the directory and the time we
944 * process it. This would lead to HAS_REFCOUNT_FL being set but
947 if (di->i_dyn_features & cpu_to_le16(OCFS2_HAS_REFCOUNT_FL)) {
952 /* for lack of a better error? */
955 "Inode %llu (on-disk %llu) not orphaned! "
956 "Disk flags 0x%x, inode flags 0x%x\n",
957 (unsigned long long)oi->ip_blkno,
958 (unsigned long long)le64_to_cpu(di->i_blkno),
959 le32_to_cpu(di->i_flags), oi->ip_flags);
963 /* has someone already deleted us?! baaad... */
971 * This is how ocfs2 determines whether an inode is still live
972 * within the cluster. Every node takes a shared read lock on
973 * the inode open lock in ocfs2_read_locked_inode(). When we
974 * get to ->delete_inode(), each node tries to convert it's
975 * lock to an exclusive. Trylocks are serialized by the inode
976 * meta data lock. If the upconvert succeeds, we know the inode
977 * is no longer live and can be deleted.
979 * Though we call this with the meta data lock held, the
980 * trylock keeps us from ABBA deadlock.
982 status = ocfs2_try_open_lock(inode, 1);
983 if (status == -EAGAIN) {
994 trace_ocfs2_query_inode_wipe_succ(le16_to_cpu(di->i_orphaned_slot));
997 trace_ocfs2_query_inode_wipe_end(status, reason);
1001 /* Support function for ocfs2_delete_inode. Will help us keep the
1002 * inode data in a consistent state for clear_inode. Always truncates
1003 * pages, optionally sync's them first. */
1004 static void ocfs2_cleanup_delete_inode(struct inode *inode,
1007 trace_ocfs2_cleanup_delete_inode(
1008 (unsigned long long)OCFS2_I(inode)->ip_blkno, sync_data);
1010 filemap_write_and_wait(inode->i_mapping);
1011 truncate_inode_pages_final(&inode->i_data);
1014 static void ocfs2_delete_inode(struct inode *inode)
1018 struct buffer_head *di_bh = NULL;
1019 struct ocfs2_dinode *di = NULL;
1021 trace_ocfs2_delete_inode(inode->i_ino,
1022 (unsigned long long)OCFS2_I(inode)->ip_blkno,
1023 is_bad_inode(inode));
1025 /* When we fail in read_inode() we mark inode as bad. The second test
1026 * catches the case when inode allocation fails before allocating
1027 * a block for inode. */
1028 if (is_bad_inode(inode) || !OCFS2_I(inode)->ip_blkno)
1031 if (!ocfs2_inode_is_valid_to_delete(inode)) {
1032 /* It's probably not necessary to truncate_inode_pages
1033 * here but we do it for safety anyway (it will most
1034 * likely be a no-op anyway) */
1035 ocfs2_cleanup_delete_inode(inode, 0);
1039 dquot_initialize(inode);
1041 /* We want to block signals in delete_inode as the lock and
1042 * messaging paths may return us -ERESTARTSYS. Which would
1043 * cause us to exit early, resulting in inodes being orphaned
1045 ocfs2_block_signals(&oldset);
1048 * Synchronize us against ocfs2_get_dentry. We take this in
1049 * shared mode so that all nodes can still concurrently
1052 status = ocfs2_nfs_sync_lock(OCFS2_SB(inode->i_sb), 0);
1054 mlog(ML_ERROR, "getting nfs sync lock(PR) failed %d\n", status);
1055 ocfs2_cleanup_delete_inode(inode, 0);
1058 /* Lock down the inode. This gives us an up to date view of
1059 * it's metadata (for verification), and allows us to
1060 * serialize delete_inode on multiple nodes.
1062 * Even though we might be doing a truncate, we don't take the
1063 * allocation lock here as it won't be needed - nobody will
1064 * have the file open.
1066 status = ocfs2_inode_lock(inode, &di_bh, 1);
1068 if (status != -ENOENT)
1070 ocfs2_cleanup_delete_inode(inode, 0);
1071 goto bail_unlock_nfs_sync;
1074 di = (struct ocfs2_dinode *)di_bh->b_data;
1075 /* Skip inode deletion and wait for dio orphan entry recovered
1077 if (unlikely(di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL))) {
1078 ocfs2_cleanup_delete_inode(inode, 0);
1079 goto bail_unlock_inode;
1082 /* Query the cluster. This will be the final decision made
1083 * before we go ahead and wipe the inode. */
1084 status = ocfs2_query_inode_wipe(inode, di_bh, &wipe);
1085 if (!wipe || status < 0) {
1086 /* Error and remote inode busy both mean we won't be
1087 * removing the inode, so they take almost the same
1092 /* Someone in the cluster has disallowed a wipe of
1093 * this inode, or it was never completely
1094 * orphaned. Write out the pages and exit now. */
1095 ocfs2_cleanup_delete_inode(inode, 1);
1096 goto bail_unlock_inode;
1099 ocfs2_cleanup_delete_inode(inode, 0);
1101 status = ocfs2_wipe_inode(inode, di_bh);
1103 if (status != -EDEADLK)
1105 goto bail_unlock_inode;
1109 * Mark the inode as successfully deleted.
1111 * This is important for ocfs2_clear_inode() as it will check
1112 * this flag and skip any checkpointing work
1114 * ocfs2_stuff_meta_lvb() also uses this flag to invalidate
1115 * the LVB for other nodes.
1117 OCFS2_I(inode)->ip_flags |= OCFS2_INODE_DELETED;
1120 ocfs2_inode_unlock(inode, 1);
1123 bail_unlock_nfs_sync:
1124 ocfs2_nfs_sync_unlock(OCFS2_SB(inode->i_sb), 0);
1127 ocfs2_unblock_signals(&oldset);
1132 static void ocfs2_clear_inode(struct inode *inode)
1135 struct ocfs2_inode_info *oi = OCFS2_I(inode);
1136 struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
1139 trace_ocfs2_clear_inode((unsigned long long)oi->ip_blkno,
1142 mlog_bug_on_msg(OCFS2_SB(inode->i_sb) == NULL,
1143 "Inode=%lu\n", inode->i_ino);
1147 /* To preven remote deletes we hold open lock before, now it
1148 * is time to unlock PR and EX open locks. */
1149 ocfs2_open_unlock(inode);
1151 /* Do these before all the other work so that we don't bounce
1152 * the downconvert thread while waiting to destroy the locks. */
1153 ocfs2_mark_lockres_freeing(osb, &oi->ip_rw_lockres);
1154 ocfs2_mark_lockres_freeing(osb, &oi->ip_inode_lockres);
1155 ocfs2_mark_lockres_freeing(osb, &oi->ip_open_lockres);
1157 ocfs2_resv_discard(&OCFS2_SB(inode->i_sb)->osb_la_resmap,
1158 &oi->ip_la_data_resv);
1159 ocfs2_resv_init_once(&oi->ip_la_data_resv);
1161 /* We very well may get a clear_inode before all an inodes
1162 * metadata has hit disk. Of course, we can't drop any cluster
1163 * locks until the journal has finished with it. The only
1164 * exception here are successfully wiped inodes - their
1165 * metadata can now be considered to be part of the system
1166 * inodes from which it came. */
1167 if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED))
1168 ocfs2_checkpoint_inode(inode);
1170 mlog_bug_on_msg(!list_empty(&oi->ip_io_markers),
1171 "Clear inode of %llu, inode has io markers\n",
1172 (unsigned long long)oi->ip_blkno);
1173 mlog_bug_on_msg(!list_empty(&oi->ip_unwritten_list),
1174 "Clear inode of %llu, inode has unwritten extents\n",
1175 (unsigned long long)oi->ip_blkno);
1177 ocfs2_extent_map_trunc(inode, 0);
1179 status = ocfs2_drop_inode_locks(inode);
1183 ocfs2_lock_res_free(&oi->ip_rw_lockres);
1184 ocfs2_lock_res_free(&oi->ip_inode_lockres);
1185 ocfs2_lock_res_free(&oi->ip_open_lockres);
1187 ocfs2_metadata_cache_exit(INODE_CACHE(inode));
1189 mlog_bug_on_msg(INODE_CACHE(inode)->ci_num_cached,
1190 "Clear inode of %llu, inode has %u cache items\n",
1191 (unsigned long long)oi->ip_blkno,
1192 INODE_CACHE(inode)->ci_num_cached);
1194 mlog_bug_on_msg(!(INODE_CACHE(inode)->ci_flags & OCFS2_CACHE_FL_INLINE),
1195 "Clear inode of %llu, inode has a bad flag\n",
1196 (unsigned long long)oi->ip_blkno);
1198 mlog_bug_on_msg(spin_is_locked(&oi->ip_lock),
1199 "Clear inode of %llu, inode is locked\n",
1200 (unsigned long long)oi->ip_blkno);
1202 mlog_bug_on_msg(!mutex_trylock(&oi->ip_io_mutex),
1203 "Clear inode of %llu, io_mutex is locked\n",
1204 (unsigned long long)oi->ip_blkno);
1205 mutex_unlock(&oi->ip_io_mutex);
1208 * down_trylock() returns 0, down_write_trylock() returns 1
1211 mlog_bug_on_msg(!down_write_trylock(&oi->ip_alloc_sem),
1212 "Clear inode of %llu, alloc_sem is locked\n",
1213 (unsigned long long)oi->ip_blkno);
1214 up_write(&oi->ip_alloc_sem);
1216 mlog_bug_on_msg(oi->ip_open_count,
1217 "Clear inode of %llu has open count %d\n",
1218 (unsigned long long)oi->ip_blkno, oi->ip_open_count);
1220 /* Clear all other flags. */
1222 oi->ip_dir_start_lookup = 0;
1223 oi->ip_blkno = 0ULL;
1226 * ip_jinode is used to track txns against this inode. We ensure that
1227 * the journal is flushed before journal shutdown. Thus it is safe to
1228 * have inodes get cleaned up after journal shutdown.
1230 jbd2_journal_release_jbd_inode(OCFS2_SB(inode->i_sb)->journal->j_journal,
1234 void ocfs2_evict_inode(struct inode *inode)
1236 if (!inode->i_nlink ||
1237 (OCFS2_I(inode)->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)) {
1238 ocfs2_delete_inode(inode);
1240 truncate_inode_pages_final(&inode->i_data);
1242 ocfs2_clear_inode(inode);
1245 /* Called under inode_lock, with no more references on the
1246 * struct inode, so it's safe here to check the flags field
1247 * and to manipulate i_nlink without any other locks. */
1248 int ocfs2_drop_inode(struct inode *inode)
1250 struct ocfs2_inode_info *oi = OCFS2_I(inode);
1252 trace_ocfs2_drop_inode((unsigned long long)oi->ip_blkno,
1253 inode->i_nlink, oi->ip_flags);
1255 assert_spin_locked(&inode->i_lock);
1256 inode->i_state |= I_WILL_FREE;
1257 spin_unlock(&inode->i_lock);
1258 write_inode_now(inode, 1);
1259 spin_lock(&inode->i_lock);
1260 WARN_ON(inode->i_state & I_NEW);
1261 inode->i_state &= ~I_WILL_FREE;
1267 * This is called from our getattr.
1269 int ocfs2_inode_revalidate(struct dentry *dentry)
1271 struct inode *inode = d_inode(dentry);
1274 trace_ocfs2_inode_revalidate(inode,
1275 inode ? (unsigned long long)OCFS2_I(inode)->ip_blkno : 0ULL,
1276 inode ? (unsigned long long)OCFS2_I(inode)->ip_flags : 0);
1283 spin_lock(&OCFS2_I(inode)->ip_lock);
1284 if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) {
1285 spin_unlock(&OCFS2_I(inode)->ip_lock);
1289 spin_unlock(&OCFS2_I(inode)->ip_lock);
1291 /* Let ocfs2_inode_lock do the work of updating our struct
1293 status = ocfs2_inode_lock(inode, NULL, 0);
1295 if (status != -ENOENT)
1299 ocfs2_inode_unlock(inode, 0);
1305 * Updates a disk inode from a
1307 * Only takes ip_lock.
1309 int ocfs2_mark_inode_dirty(handle_t *handle,
1310 struct inode *inode,
1311 struct buffer_head *bh)
1314 struct ocfs2_dinode *fe = (struct ocfs2_dinode *) bh->b_data;
1316 trace_ocfs2_mark_inode_dirty((unsigned long long)OCFS2_I(inode)->ip_blkno);
1318 status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), bh,
1319 OCFS2_JOURNAL_ACCESS_WRITE);
1325 spin_lock(&OCFS2_I(inode)->ip_lock);
1326 fe->i_clusters = cpu_to_le32(OCFS2_I(inode)->ip_clusters);
1327 ocfs2_get_inode_flags(OCFS2_I(inode));
1328 fe->i_attr = cpu_to_le32(OCFS2_I(inode)->ip_attr);
1329 fe->i_dyn_features = cpu_to_le16(OCFS2_I(inode)->ip_dyn_features);
1330 spin_unlock(&OCFS2_I(inode)->ip_lock);
1332 fe->i_size = cpu_to_le64(i_size_read(inode));
1333 ocfs2_set_links_count(fe, inode->i_nlink);
1334 fe->i_uid = cpu_to_le32(i_uid_read(inode));
1335 fe->i_gid = cpu_to_le32(i_gid_read(inode));
1336 fe->i_mode = cpu_to_le16(inode->i_mode);
1337 fe->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
1338 fe->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
1339 fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
1340 fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
1341 fe->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
1342 fe->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
1344 ocfs2_journal_dirty(handle, bh);
1345 ocfs2_update_inode_fsync_trans(handle, inode, 1);
1352 * Updates a struct inode from a disk inode.
1353 * does no i/o, only takes ip_lock.
1355 void ocfs2_refresh_inode(struct inode *inode,
1356 struct ocfs2_dinode *fe)
1358 spin_lock(&OCFS2_I(inode)->ip_lock);
1360 OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
1361 OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
1362 OCFS2_I(inode)->ip_dyn_features = le16_to_cpu(fe->i_dyn_features);
1363 ocfs2_set_inode_flags(inode);
1364 i_size_write(inode, le64_to_cpu(fe->i_size));
1365 set_nlink(inode, ocfs2_read_links_count(fe));
1366 i_uid_write(inode, le32_to_cpu(fe->i_uid));
1367 i_gid_write(inode, le32_to_cpu(fe->i_gid));
1368 inode->i_mode = le16_to_cpu(fe->i_mode);
1369 if (S_ISLNK(inode->i_mode) && le32_to_cpu(fe->i_clusters) == 0)
1370 inode->i_blocks = 0;
1372 inode->i_blocks = ocfs2_inode_sector_count(inode);
1373 inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime);
1374 inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec);
1375 inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime);
1376 inode->i_mtime.tv_nsec = le32_to_cpu(fe->i_mtime_nsec);
1377 inode->i_ctime.tv_sec = le64_to_cpu(fe->i_ctime);
1378 inode->i_ctime.tv_nsec = le32_to_cpu(fe->i_ctime_nsec);
1380 spin_unlock(&OCFS2_I(inode)->ip_lock);
1383 int ocfs2_validate_inode_block(struct super_block *sb,
1384 struct buffer_head *bh)
1387 struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
1389 trace_ocfs2_validate_inode_block((unsigned long long)bh->b_blocknr);
1391 BUG_ON(!buffer_uptodate(bh));
1394 * If the ecc fails, we return the error but otherwise
1395 * leave the filesystem running. We know any error is
1396 * local to this block.
1398 rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check);
1400 mlog(ML_ERROR, "Checksum failed for dinode %llu\n",
1401 (unsigned long long)bh->b_blocknr);
1406 * Errors after here are fatal.
1411 if (!OCFS2_IS_VALID_DINODE(di)) {
1412 rc = ocfs2_error(sb, "Invalid dinode #%llu: signature = %.*s\n",
1413 (unsigned long long)bh->b_blocknr, 7,
1418 if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) {
1419 rc = ocfs2_error(sb, "Invalid dinode #%llu: i_blkno is %llu\n",
1420 (unsigned long long)bh->b_blocknr,
1421 (unsigned long long)le64_to_cpu(di->i_blkno));
1425 if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) {
1426 rc = ocfs2_error(sb,
1427 "Invalid dinode #%llu: OCFS2_VALID_FL not set\n",
1428 (unsigned long long)bh->b_blocknr);
1432 if (le32_to_cpu(di->i_fs_generation) !=
1433 OCFS2_SB(sb)->fs_generation) {
1434 rc = ocfs2_error(sb,
1435 "Invalid dinode #%llu: fs_generation is %u\n",
1436 (unsigned long long)bh->b_blocknr,
1437 le32_to_cpu(di->i_fs_generation));
1447 static int ocfs2_filecheck_validate_inode_block(struct super_block *sb,
1448 struct buffer_head *bh)
1451 struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
1453 trace_ocfs2_filecheck_validate_inode_block(
1454 (unsigned long long)bh->b_blocknr);
1456 BUG_ON(!buffer_uptodate(bh));
1459 * Call ocfs2_validate_meta_ecc() first since it has ecc repair
1460 * function, but we should not return error immediately when ecc
1461 * validation fails, because the reason is quite likely the invalid
1462 * inode number inputed.
1464 rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check);
1467 "Filecheck: checksum failed for dinode %llu\n",
1468 (unsigned long long)bh->b_blocknr);
1469 rc = -OCFS2_FILECHECK_ERR_BLOCKECC;
1472 if (!OCFS2_IS_VALID_DINODE(di)) {
1474 "Filecheck: invalid dinode #%llu: signature = %.*s\n",
1475 (unsigned long long)bh->b_blocknr, 7, di->i_signature);
1476 rc = -OCFS2_FILECHECK_ERR_INVALIDINO;
1481 if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) {
1483 "Filecheck: invalid dinode #%llu: i_blkno is %llu\n",
1484 (unsigned long long)bh->b_blocknr,
1485 (unsigned long long)le64_to_cpu(di->i_blkno));
1486 rc = -OCFS2_FILECHECK_ERR_BLOCKNO;
1490 if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) {
1492 "Filecheck: invalid dinode #%llu: OCFS2_VALID_FL "
1494 (unsigned long long)bh->b_blocknr);
1495 rc = -OCFS2_FILECHECK_ERR_VALIDFLAG;
1499 if (le32_to_cpu(di->i_fs_generation) !=
1500 OCFS2_SB(sb)->fs_generation) {
1502 "Filecheck: invalid dinode #%llu: fs_generation is %u\n",
1503 (unsigned long long)bh->b_blocknr,
1504 le32_to_cpu(di->i_fs_generation));
1505 rc = -OCFS2_FILECHECK_ERR_GENERATION;
1513 static int ocfs2_filecheck_repair_inode_block(struct super_block *sb,
1514 struct buffer_head *bh)
1517 struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
1519 if (!ocfs2_filecheck_validate_inode_block(sb, bh))
1522 trace_ocfs2_filecheck_repair_inode_block(
1523 (unsigned long long)bh->b_blocknr);
1525 if (ocfs2_is_hard_readonly(OCFS2_SB(sb)) ||
1526 ocfs2_is_soft_readonly(OCFS2_SB(sb))) {
1528 "Filecheck: cannot repair dinode #%llu "
1529 "on readonly filesystem\n",
1530 (unsigned long long)bh->b_blocknr);
1531 return -OCFS2_FILECHECK_ERR_READONLY;
1534 if (buffer_jbd(bh)) {
1536 "Filecheck: cannot repair dinode #%llu, "
1537 "its buffer is in jbd\n",
1538 (unsigned long long)bh->b_blocknr);
1539 return -OCFS2_FILECHECK_ERR_INJBD;
1542 if (!OCFS2_IS_VALID_DINODE(di)) {
1543 /* Cannot fix invalid inode block */
1544 return -OCFS2_FILECHECK_ERR_INVALIDINO;
1547 if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) {
1548 /* Cannot just add VALID_FL flag back as a fix,
1549 * need more things to check here.
1551 return -OCFS2_FILECHECK_ERR_VALIDFLAG;
1554 if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) {
1555 di->i_blkno = cpu_to_le64(bh->b_blocknr);
1558 "Filecheck: reset dinode #%llu: i_blkno to %llu\n",
1559 (unsigned long long)bh->b_blocknr,
1560 (unsigned long long)le64_to_cpu(di->i_blkno));
1563 if (le32_to_cpu(di->i_fs_generation) !=
1564 OCFS2_SB(sb)->fs_generation) {
1565 di->i_fs_generation = cpu_to_le32(OCFS2_SB(sb)->fs_generation);
1568 "Filecheck: reset dinode #%llu: fs_generation to %u\n",
1569 (unsigned long long)bh->b_blocknr,
1570 le32_to_cpu(di->i_fs_generation));
1573 if (changed || ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check)) {
1574 ocfs2_compute_meta_ecc(sb, bh->b_data, &di->i_check);
1575 mark_buffer_dirty(bh);
1577 "Filecheck: reset dinode #%llu: compute meta ecc\n",
1578 (unsigned long long)bh->b_blocknr);
1585 ocfs2_filecheck_read_inode_block_full(struct inode *inode,
1586 struct buffer_head **bh,
1587 int flags, int type)
1590 struct buffer_head *tmp = *bh;
1592 if (!type) /* Check inode block */
1593 rc = ocfs2_read_blocks(INODE_CACHE(inode),
1594 OCFS2_I(inode)->ip_blkno,
1596 ocfs2_filecheck_validate_inode_block);
1597 else /* Repair inode block */
1598 rc = ocfs2_read_blocks(INODE_CACHE(inode),
1599 OCFS2_I(inode)->ip_blkno,
1601 ocfs2_filecheck_repair_inode_block);
1603 /* If ocfs2_read_blocks() got us a new bh, pass it up. */
1610 int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh,
1614 struct buffer_head *tmp = *bh;
1616 rc = ocfs2_read_blocks(INODE_CACHE(inode), OCFS2_I(inode)->ip_blkno,
1617 1, &tmp, flags, ocfs2_validate_inode_block);
1619 /* If ocfs2_read_blocks() got us a new bh, pass it up. */
1626 int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh)
1628 return ocfs2_read_inode_block_full(inode, bh, 0);
1632 static u64 ocfs2_inode_cache_owner(struct ocfs2_caching_info *ci)
1634 struct ocfs2_inode_info *oi = cache_info_to_inode(ci);
1636 return oi->ip_blkno;
1639 static struct super_block *ocfs2_inode_cache_get_super(struct ocfs2_caching_info *ci)
1641 struct ocfs2_inode_info *oi = cache_info_to_inode(ci);
1643 return oi->vfs_inode.i_sb;
1646 static void ocfs2_inode_cache_lock(struct ocfs2_caching_info *ci)
1648 struct ocfs2_inode_info *oi = cache_info_to_inode(ci);
1650 spin_lock(&oi->ip_lock);
1653 static void ocfs2_inode_cache_unlock(struct ocfs2_caching_info *ci)
1655 struct ocfs2_inode_info *oi = cache_info_to_inode(ci);
1657 spin_unlock(&oi->ip_lock);
1660 static void ocfs2_inode_cache_io_lock(struct ocfs2_caching_info *ci)
1662 struct ocfs2_inode_info *oi = cache_info_to_inode(ci);
1664 mutex_lock(&oi->ip_io_mutex);
1667 static void ocfs2_inode_cache_io_unlock(struct ocfs2_caching_info *ci)
1669 struct ocfs2_inode_info *oi = cache_info_to_inode(ci);
1671 mutex_unlock(&oi->ip_io_mutex);
1674 const struct ocfs2_caching_operations ocfs2_inode_caching_ops = {
1675 .co_owner = ocfs2_inode_cache_owner,
1676 .co_get_super = ocfs2_inode_cache_get_super,
1677 .co_cache_lock = ocfs2_inode_cache_lock,
1678 .co_cache_unlock = ocfs2_inode_cache_unlock,
1679 .co_io_lock = ocfs2_inode_cache_io_lock,
1680 .co_io_unlock = ocfs2_inode_cache_io_unlock,