Commit 1cecf579 authored Sep 13, 2013 by chandan Committed by Chris Mason Sep 21, 2013

Btrfs: btrfs_ioctl_default_subvol: Revert back to toplevel subvolume when arg is 0



This patch makes it possible to set BTRFS_FS_TREE_OBJECTID as the default
subvolume by passing a subvolume id of 0.

Signed-off-by: chandan <chandan@linux.vnet.ibm.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

parent a0634be5

fs/btrfs/ioctl.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -3310,7 +3310,7 @@ static long btrfs_ioctl_default_subvol(struct file file, void __user argp)
		}

		if (!objectid)
		objectid = root->root_key.objectid;
		objectid = BTRFS_FS_TREE_OBJECTID;

		location.objectid = objectid;
		location.type = BTRFS_ROOT_ITEM_KEY;