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Diffstat (limited to 'fs/ocfs2/inode.c')
-rw-r--r--fs/ocfs2/inode.c199
1 files changed, 92 insertions, 107 deletions
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 28ab56f..21a6050 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -89,24 +89,6 @@ void ocfs2_set_inode_flags(struct inode *inode)
inode->i_flags |= S_DIRSYNC;
}
-struct inode *ocfs2_ilookup_for_vote(struct ocfs2_super *osb,
- u64 blkno,
- int delete_vote)
-{
- struct ocfs2_find_inode_args args;
-
- /* ocfs2_ilookup_for_vote should *only* be called from the
- * vote thread */
- BUG_ON(current != osb->vote_task);
-
- args.fi_blkno = blkno;
- args.fi_flags = OCFS2_FI_FLAG_NOWAIT;
- if (delete_vote)
- args.fi_flags |= OCFS2_FI_FLAG_DELETE;
- args.fi_ino = ino_from_blkno(osb->sb, blkno);
- return ilookup5(osb->sb, args.fi_ino, ocfs2_find_actor, &args);
-}
-
struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, int flags)
{
struct inode *inode = NULL;
@@ -182,28 +164,6 @@ static int ocfs2_find_actor(struct inode *inode, void *opaque)
if (oi->ip_blkno != args->fi_blkno)
goto bail;
- /* OCFS2_FI_FLAG_NOWAIT is *only* set from
- * ocfs2_ilookup_for_vote which won't create an inode for one
- * that isn't found. The vote thread which doesn't want to get
- * an inode which is in the process of going away - otherwise
- * the call to __wait_on_freeing_inode in find_inode_fast will
- * cause it to deadlock on an inode which may be waiting on a
- * vote (or lock release) in delete_inode */
- if ((args->fi_flags & OCFS2_FI_FLAG_NOWAIT) &&
- (inode->i_state & (I_FREEING|I_CLEAR))) {
- /* As stated above, we're not going to return an
- * inode. In the case of a delete vote, the voting
- * code is going to signal the other node to go
- * ahead. Mark that state here, so this freeing inode
- * has the state when it gets to delete_inode. */
- if (args->fi_flags & OCFS2_FI_FLAG_DELETE) {
- spin_lock(&oi->ip_lock);
- ocfs2_mark_inode_remotely_deleted(inode);
- spin_unlock(&oi->ip_lock);
- }
- goto bail;
- }
-
ret = 1;
bail:
mlog_exit(ret);
@@ -261,6 +221,9 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
goto bail;
}
+ OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
+ OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
+
inode->i_version = 1;
inode->i_generation = le32_to_cpu(fe->i_generation);
inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev));
@@ -272,8 +235,7 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
if (S_ISLNK(inode->i_mode) && !fe->i_clusters)
inode->i_blocks = 0;
else
- inode->i_blocks =
- ocfs2_align_bytes_to_sectors(le64_to_cpu(fe->i_size));
+ inode->i_blocks = ocfs2_inode_sector_count(inode);
inode->i_mapping->a_ops = &ocfs2_aops;
inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime);
inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec);
@@ -288,10 +250,6 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
(unsigned long long)OCFS2_I(inode)->ip_blkno,
(unsigned long long)fe->i_blkno);
- OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
- OCFS2_I(inode)->ip_orphaned_slot = OCFS2_INVALID_SLOT;
- OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
-
inode->i_nlink = le16_to_cpu(fe->i_links_count);
if (fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL))
@@ -347,6 +305,9 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_meta_lockres,
OCFS2_LOCK_TYPE_META, 0, inode);
+
+ ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres,
+ OCFS2_LOCK_TYPE_OPEN, 0, inode);
}
ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_rw_lockres,
@@ -421,7 +382,7 @@ static int ocfs2_read_locked_inode(struct inode *inode,
* cluster lock before trusting anything anyway.
*/
can_lock = !(args->fi_flags & OCFS2_FI_FLAG_SYSFILE)
- && !(args->fi_flags & OCFS2_FI_FLAG_NOLOCK)
+ && !(args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY)
&& !ocfs2_mount_local(osb);
/*
@@ -438,7 +399,17 @@ static int ocfs2_read_locked_inode(struct inode *inode,
OCFS2_LOCK_TYPE_META,
generation, inode);
+ ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_open_lockres,
+ OCFS2_LOCK_TYPE_OPEN,
+ 0, inode);
+
if (can_lock) {
+ status = ocfs2_open_lock(inode);
+ if (status) {
+ make_bad_inode(inode);
+ mlog_errno(status);
+ return status;
+ }
status = ocfs2_meta_lock(inode, NULL, 0);
if (status) {
make_bad_inode(inode);
@@ -447,6 +418,14 @@ static int ocfs2_read_locked_inode(struct inode *inode,
}
}
+ if (args->fi_flags & OCFS2_FI_FLAG_ORPHAN_RECOVERY) {
+ status = ocfs2_try_open_lock(inode, 0);
+ if (status) {
+ make_bad_inode(inode);
+ return status;
+ }
+ }
+
status = ocfs2_read_block(osb, args->fi_blkno, &bh, 0,
can_lock ? inode : NULL);
if (status < 0) {
@@ -507,50 +486,56 @@ static int ocfs2_truncate_for_delete(struct ocfs2_super *osb,
struct buffer_head *fe_bh)
{
int status = 0;
- handle_t *handle = NULL;
struct ocfs2_truncate_context *tc = NULL;
struct ocfs2_dinode *fe;
+ handle_t *handle = NULL;
mlog_entry_void();
fe = (struct ocfs2_dinode *) fe_bh->b_data;
- /* zero allocation, zero truncate :) */
- if (!fe->i_clusters)
- goto bail;
+ if (fe->i_clusters) {
+ handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out;
+ }
- handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
- if (IS_ERR(handle)) {
- status = PTR_ERR(handle);
- handle = NULL;
- mlog_errno(status);
- goto bail;
- }
+ status = ocfs2_journal_access(handle, inode, fe_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
- status = ocfs2_set_inode_size(handle, inode, fe_bh, 0ULL);
- if (status < 0) {
- mlog_errno(status);
- goto bail;
- }
+ i_size_write(inode, 0);
- ocfs2_commit_trans(osb, handle);
- handle = NULL;
+ status = ocfs2_mark_inode_dirty(handle, inode, fe_bh);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
- status = ocfs2_prepare_truncate(osb, inode, fe_bh, &tc);
- if (status < 0) {
- mlog_errno(status);
- goto bail;
- }
+ ocfs2_commit_trans(osb, handle);
+ handle = NULL;
- status = ocfs2_commit_truncate(osb, inode, fe_bh, tc);
- if (status < 0) {
- mlog_errno(status);
- goto bail;
+ status = ocfs2_prepare_truncate(osb, inode, fe_bh, &tc);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+
+ status = ocfs2_commit_truncate(osb, inode, fe_bh, tc);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
}
-bail:
+
+out:
if (handle)
ocfs2_commit_trans(osb, handle);
-
mlog_exit(status);
return status;
}
@@ -678,10 +663,10 @@ static int ocfs2_wipe_inode(struct inode *inode,
struct inode *orphan_dir_inode = NULL;
struct buffer_head *orphan_dir_bh = NULL;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct ocfs2_dinode *di;
- /* We've already voted on this so it should be readonly - no
- * spinlock needed. */
- orphaned_slot = OCFS2_I(inode)->ip_orphaned_slot;
+ di = (struct ocfs2_dinode *) di_bh->b_data;
+ orphaned_slot = le16_to_cpu(di->i_orphaned_slot);
status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot);
if (status)
@@ -839,11 +824,20 @@ static int ocfs2_query_inode_wipe(struct inode *inode,
goto bail;
}
- status = ocfs2_request_delete_vote(inode);
- /* -EBUSY means that other nodes are still using the
- * inode. We're done here though, so avoid doing anything on
- * disk and let them worry about deleting it. */
- if (status == -EBUSY) {
+ /*
+ * This is how ocfs2 determines whether an inode is still live
+ * within the cluster. Every node takes a shared read lock on
+ * the inode open lock in ocfs2_read_locked_inode(). When we
+ * get to ->delete_inode(), each node tries to convert it's
+ * lock to an exclusive. Trylocks are serialized by the inode
+ * meta data lock. If the upconvert suceeds, we know the inode
+ * is no longer live and can be deleted.
+ *
+ * Though we call this with the meta data lock held, the
+ * trylock keeps us from ABBA deadlock.
+ */
+ status = ocfs2_try_open_lock(inode, 1);
+ if (status == -EAGAIN) {
status = 0;
mlog(0, "Skipping delete of %llu because it is in use on"
"other nodes\n", (unsigned long long)oi->ip_blkno);
@@ -854,21 +848,10 @@ static int ocfs2_query_inode_wipe(struct inode *inode,
goto bail;
}
- spin_lock(&oi->ip_lock);
- if (oi->ip_orphaned_slot == OCFS2_INVALID_SLOT) {
- /* Nobody knew which slot this inode was orphaned
- * into. This may happen during node death and
- * recovery knows how to clean it up so we can safely
- * ignore this inode for now on. */
- mlog(0, "Nobody knew where inode %llu was orphaned!\n",
- (unsigned long long)oi->ip_blkno);
- } else {
- *wipe = 1;
-
- mlog(0, "Inode %llu is ok to wipe from orphan dir %d\n",
- (unsigned long long)oi->ip_blkno, oi->ip_orphaned_slot);
- }
- spin_unlock(&oi->ip_lock);
+ *wipe = 1;
+ mlog(0, "Inode %llu is ok to wipe from orphan dir %u\n",
+ (unsigned long long)oi->ip_blkno,
+ le16_to_cpu(di->i_orphaned_slot));
bail:
return status;
@@ -1001,11 +984,16 @@ void ocfs2_clear_inode(struct inode *inode)
mlog_bug_on_msg(OCFS2_SB(inode->i_sb) == NULL,
"Inode=%lu\n", inode->i_ino);
+ /* For remove delete_inode vote, we hold open lock before,
+ * now it is time to unlock PR and EX open locks. */
+ ocfs2_open_unlock(inode);
+
/* Do these before all the other work so that we don't bounce
* the vote thread while waiting to destroy the locks. */
ocfs2_mark_lockres_freeing(&oi->ip_rw_lockres);
ocfs2_mark_lockres_freeing(&oi->ip_meta_lockres);
ocfs2_mark_lockres_freeing(&oi->ip_data_lockres);
+ ocfs2_mark_lockres_freeing(&oi->ip_open_lockres);
/* We very well may get a clear_inode before all an inodes
* metadata has hit disk. Of course, we can't drop any cluster
@@ -1020,8 +1008,7 @@ void ocfs2_clear_inode(struct inode *inode)
"Clear inode of %llu, inode has io markers\n",
(unsigned long long)oi->ip_blkno);
- ocfs2_extent_map_drop(inode, 0);
- ocfs2_extent_map_init(inode);
+ ocfs2_extent_map_trunc(inode, 0);
status = ocfs2_drop_inode_locks(inode);
if (status < 0)
@@ -1030,6 +1017,7 @@ void ocfs2_clear_inode(struct inode *inode)
ocfs2_lock_res_free(&oi->ip_rw_lockres);
ocfs2_lock_res_free(&oi->ip_meta_lockres);
ocfs2_lock_res_free(&oi->ip_data_lockres);
+ ocfs2_lock_res_free(&oi->ip_open_lockres);
ocfs2_metadata_cache_purge(inode);
@@ -1086,9 +1074,6 @@ void ocfs2_drop_inode(struct inode *inode)
mlog(0, "Drop inode %llu, nlink = %u, ip_flags = 0x%x\n",
(unsigned long long)oi->ip_blkno, inode->i_nlink, oi->ip_flags);
- /* Testing ip_orphaned_slot here wouldn't work because we may
- * not have gotten a delete_inode vote from any other nodes
- * yet. */
if (oi->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)
generic_delete_inode(inode);
else
@@ -1121,8 +1106,8 @@ struct buffer_head *ocfs2_bread(struct inode *inode,
return NULL;
}
- tmperr = ocfs2_extent_map_get_blocks(inode, block, 1,
- &p_blkno, NULL);
+ tmperr = ocfs2_extent_map_get_blocks(inode, block, &p_blkno, NULL,
+ NULL);
if (tmperr < 0) {
mlog_errno(tmperr);
goto fail;
@@ -1259,7 +1244,7 @@ void ocfs2_refresh_inode(struct inode *inode,
if (S_ISLNK(inode->i_mode) && le32_to_cpu(fe->i_clusters) == 0)
inode->i_blocks = 0;
else
- inode->i_blocks = ocfs2_align_bytes_to_sectors(i_size_read(inode));
+ inode->i_blocks = ocfs2_inode_sector_count(inode);
inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime);
inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec);
inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime);
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