]> git.baikalelectronics.ru Git - kernel.git/commit
btrfs: Don't generate UUID for non-fs tree
authorQu Wenruo <wqu@suse.com>
Tue, 31 Oct 2017 06:08:16 +0000 (14:08 +0800)
committerDavid Sterba <dsterba@suse.com>
Mon, 22 Jan 2018 15:08:11 +0000 (16:08 +0100)
commitd87da8b1ba54985a87bfb364ec75cb28e5f350f6
treed3814923c3092b3486796ae882fdf688c821cdb8
parentac1bc1402b9393c7a70ed8979845783552dcbea6
btrfs: Don't generate UUID for non-fs tree

btrfs_create_tree() will unconditionally generate UUID for any root.
So for quota tree and data reloc tree created by kernel, they will have
unique UUIDs.

However UUID in root item is only referred by UUID tree, which only
records UUID for fs trees.  This makes unique UUIDs for quota/data reloc
tree meaningless.

Leave the UUID as zero for non-fs tree, making btrfs-debug-tree output
less confusing.

Reported-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/disk-io.c