From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Fri, 23 Sep 2016 16:07:56 +0000 (-0700)
Subject: blkcg: Annotate blkg_hint correctly
X-Git-Tag: v4.9-rc1~87^2~10
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=55679c8d23d191c24ad133abc5647e3054ca8de1;p=platform%2Fkernel%2Flinux-amlogic.git

blkcg: Annotate blkg_hint correctly

Avoid that sparse complains about blkg_hint manipulations.

Fixes: a637120e4902 ("blkcg: use radix tree to index blkgs from blkcg")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 10648e3..cbdbf34 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -45,7 +45,7 @@ struct blkcg {
 	spinlock_t			lock;
 
 	struct radix_tree_root		blkg_tree;
-	struct blkcg_gq			*blkg_hint;
+	struct blkcg_gq	__rcu		*blkg_hint;
 	struct hlist_head		blkg_list;
 
 	struct blkcg_policy_data	*cpd[BLKCG_MAX_POLS];