Before when this was modifying the bit field we had to protect it with
the bg->lock, however now we're using bit helpers so we can stop
using the bg->lock.
Signed-off-by: NJosef Bacik <josef@toxicpanda.com>
Reviewed-by: NDavid Sterba <dsterba@suse.com>
Signed-off-by: NDavid Sterba <dsterba@suse.com>