block: fix a build error
authorShaohua Li <shli@fb.com>
Tue, 26 Sep 2017 18:02:12 +0000 (11:02 -0700)
committerJens Axboe <axboe@kernel.dk>
Tue, 26 Sep 2017 18:07:24 +0000 (12:07 -0600)
commit0b508bc926bdced678febee2a2b8cdba0a19e481
tree79a143e9857e44b1d28628bf88e188cd476db650
parent9979d545c93653770984806e9bfcec1df53a9d3d
block: fix a build error

The code is only for blkcg not for all cgroups

Fixes: d4478e92d618 ("block/loop: make loop cgroup aware")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/block/loop.c
include/linux/kthread.h
kernel/kthread.c