btrfs: replace uuid_mutex by device_list_mutex in btrfs_open_devices
authorAnand Jain <anand.jain@oracle.com>
Thu, 12 Apr 2018 02:29:34 +0000 (10:29 +0800)
committerDavid Sterba <dsterba@suse.com>
Mon, 28 May 2018 16:23:15 +0000 (18:23 +0200)
commit542c5908abfe84f7b4c1717492ecc92ea0ea328d
tree3b94ce4b3adba78f045f537067e5355b7ac4ad4d
parent3dd0f7a3644eed9017f62ccd0067a91e8260d097
btrfs: replace uuid_mutex by device_list_mutex in btrfs_open_devices

btrfs_open_devices() is using the uuid_mutex, but as btrfs_open_devices
is just limited to openning all the devices under for given fsid, so we
don't need uuid_mutex.

Instead it should hold the device_list_mutex as it updates the members
of the btrfs_fs_devices and btrfs_device and not the whole fs_devs list.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ update changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/volumes.c