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-rw-r--r--fs/btrfs/tree-log.c48
1 files changed, 30 insertions, 18 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 9f05d454b9df..2186e87fb61b 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -321,8 +321,7 @@ struct walk_control {
/*
* Ignore any items from the inode currently being processed. Needs
- * to be set every time we find a BTRFS_INODE_ITEM_KEY and we are in
- * the LOG_WALK_REPLAY_INODES stage.
+ * to be set every time we find a BTRFS_INODE_ITEM_KEY.
*/
bool ignore_cur_inode;
@@ -2465,23 +2464,30 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
nritems = btrfs_header_nritems(eb);
for (i = 0; i < nritems; i++) {
- btrfs_item_key_to_cpu(eb, &key, i);
+ struct btrfs_inode_item *inode_item;
- /* inode keys are done during the first stage */
- if (key.type == BTRFS_INODE_ITEM_KEY &&
- wc->stage == LOG_WALK_REPLAY_INODES) {
- struct btrfs_inode_item *inode_item;
- u32 mode;
+ btrfs_item_key_to_cpu(eb, &key, i);
- inode_item = btrfs_item_ptr(eb, i,
- struct btrfs_inode_item);
+ if (key.type == BTRFS_INODE_ITEM_KEY) {
+ inode_item = btrfs_item_ptr(eb, i, struct btrfs_inode_item);
/*
- * If we have a tmpfile (O_TMPFILE) that got fsync'ed
- * and never got linked before the fsync, skip it, as
- * replaying it is pointless since it would be deleted
- * later. We skip logging tmpfiles, but it's always
- * possible we are replaying a log created with a kernel
- * that used to log tmpfiles.
+ * An inode with no links is either:
+ *
+ * 1) A tmpfile (O_TMPFILE) that got fsync'ed and never
+ * got linked before the fsync, skip it, as replaying
+ * it is pointless since it would be deleted later.
+ * We skip logging tmpfiles, but it's always possible
+ * we are replaying a log created with a kernel that
+ * used to log tmpfiles;
+ *
+ * 2) A non-tmpfile which got its last link deleted
+ * while holding an open fd on it and later got
+ * fsynced through that fd. We always log the
+ * parent inodes when inode->last_unlink_trans is
+ * set to the current transaction, so ignore all the
+ * inode items for this inode. We will delete the
+ * inode when processing the parent directory with
+ * replay_dir_deletes().
*/
if (btrfs_inode_nlink(eb, inode_item) == 0) {
wc->ignore_cur_inode = true;
@@ -2489,8 +2495,14 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
} else {
wc->ignore_cur_inode = false;
}
- ret = replay_xattr_deletes(wc->trans, root, log,
- path, key.objectid);
+ }
+
+ /* Inode keys are done during the first stage. */
+ if (key.type == BTRFS_INODE_ITEM_KEY &&
+ wc->stage == LOG_WALK_REPLAY_INODES) {
+ u32 mode;
+
+ ret = replay_xattr_deletes(wc->trans, root, log, path, key.objectid);
if (ret)
break;
mode = btrfs_inode_mode(eb, inode_item);