On Mon, 11 Aug 2014 17:42:54 +0800, Anand Jain wrote:
reproducer:
mount /dev/sdb /btrfs
btrfs dev add /dev/sdc /btrfs
btrfs rep start -B /dev/sdb /dev/sdd /btrfs
umount /btrfs
WARNING: CPU: 0 PID: 12661 at fs/btrfs/volumes.c:891
__btrfs_close_devices+0x1b0/0x200 [btrfs]()
::
reproducer:
mount /dev/sdb /btrfs
btrfs dev add /dev/sdc /btrfs
btrfs rep start -B /dev/sdb /dev/sdd /btrfs
umount /btrfs
WARNING: CPU: 0 PID: 12661 at fs/btrfs/volumes.c:891
__btrfs_close_devices+0x1b0/0x200 [btrfs]()
::
__btrfs_close_devices()
::
WARN_ON(fs_devices-open_devices);