Commit bcbba5e6 authored Feb 08, 2014 by Wang Shilong Committed by Josef Bacik Mar 10, 2014

Btrfs: skip readonly root for snapshot-aware defragment



Btrfs send is assuming readonly root won't change, let's skip readonly root.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>

parent 850a8cdf

fs/btrfs/inode.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -2240,6 +2240,11 @@ static noinline int relink_extent_backref(struct btrfs_path *path,
		return PTR_ERR(root);
		}

		if (btrfs_root_readonly(root)) {
		srcu_read_unlock(&fs_info->subvol_srcu, index);
		return 0;
		}

		/* step 2: get inode */
		key.objectid = backref->inum;
		key.type = BTRFS_INODE_ITEM_KEY;