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1e37f2f846
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>