Commit 2112ac80 authored Jul 26, 2013 by Josef Bacik Committed by Chris Mason Sep 01, 2013

Btrfs: don't bother autodefragging if our root is going away



We can end up with inodes on the auto defrag list that exist on roots that are
going to be deleted.  This is extra work we don't need to do, so just bail if
our root has 0 root refs.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

parent b37b39cd

fs/btrfs/file.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -310,6 +310,11 @@ static int __btrfs_run_defrag_inode(struct btrfs_fs_info *fs_info,
		goto cleanup;
		}

		if (btrfs_root_refs(&inode_root->root_item) == 0) {
		ret = -ENOENT;
		goto cleanup;
		}

		key.objectid = defrag->ino;
		btrfs_set_key_type(&key, BTRFS_INODE_ITEM_KEY);
		key.offset = 0;