btrfs: keep device list sorted
authorAnand Jain <anand.jain@oracle.com>
Mon, 22 Jan 2018 22:49:36 +0000 (14:49 -0800)
committerDavid Sterba <dsterba@suse.com>
Mon, 26 Mar 2018 13:09:36 +0000 (15:09 +0200)
commitf8e10cd3f8dd3b15ea49f820a0d2decf3c654b13
treec81c02d063c231d74f167b994504ba7e0b331389
parent3d5addafd0c49d57afe867339ec1cc535d23715e
btrfs: keep device list sorted

By maintaining the device list sorted lets us reproduce the problems
related to missing chunk in the degraded mode much more consistent. So
fix this by sorting the devices by devid within the kernel. So that we
know which device is assigned to the struct fs_info::latest_bdev when
all the devices are having and same SB generation.

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