btrfs: hold a ref on the root in btrfs_check_uuid_tree_entry
authorJosef Bacik <josef@toxicpanda.com>
Fri, 24 Jan 2020 14:32:52 +0000 (09:32 -0500)
committerDavid Sterba <dsterba@suse.com>
Mon, 23 Mar 2020 16:01:31 +0000 (17:01 +0100)
commitfbb0ce40d6064e731b5976f10e91ce7b9683df1f
tree9ee40d1fbb3fd2c5399ca097bf3e60ca5c0237f2
parentca2037fba6af039c18ae3219ff2fbacf2ca7c133
btrfs: hold a ref on the root in btrfs_check_uuid_tree_entry

We lookup the uuid of arbitrary subvolumes, hold a ref on the root while
we're doing this.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/volumes.c