commit 1e37f2f84680fa7f8394fd444b6928e334495ccc
author Ilya Dryomov <idryomov@gmail.com> Mon Nov 06 11:33:36 2017 +0100
committer Ilya Dryomov <idryomov@gmail.com> Thu Nov 09 09:32:53 2017 +0100
tree b69c9047d3d73f4e39716fbbf90d659e512d788a
parent 39dae59d66acd86d1de24294bd2f343fd5e7a625

rbd: use GFP_NOIO for parent stat and data requests

rbd_img_obj_exists_submit() and rbd_img_obj_parent_read_full() are on
the writeback path for cloned images -- we attempt a stat on the parent
object to see if it exists and potentially read it in to call copyup.
GFP_NOIO should be used instead of GFP_KERNEL here.

Cc: stable@vger.kernel.org
Link: http://tracker.ceph.com/issues/22014
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: David Disseldorp <ddiss@suse.de>