X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=block%2Fioprio.c;h=01b8116298a13b5463e7969ce66c0b037bcfccd5;hb=5ac21bd8d823df9705ea183a70a17d16413aad5b;hp=cc7800e9eb441e2b7737a152f0dbb60182821408;hpb=ae36ce07abbdde3521dc0ef7e32143b88718cd21;p=firefly-linux-kernel-4.4.55.git

diff --git a/block/ioprio.c b/block/ioprio.c
index cc7800e9eb44..01b8116298a1 100644
--- a/block/ioprio.c
+++ b/block/ioprio.c
@@ -150,8 +150,10 @@ static int get_task_ioprio(struct task_struct *p)
 	if (ret)
 		goto out;
 	ret = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, IOPRIO_NORM);
+	task_lock(p);
 	if (p->io_context)
 		ret = p->io_context->ioprio;
+	task_unlock(p);
 out:
 	return ret;
 }