| From | Ben Hutchings <> | Date | Wed, 15 Feb 2017 22:41:40 +0000 | Subject | [PATCH 3.16 066/306] blkcg: Annotate blkg_hint correctly |
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3.16.40-rc1 review patch. If anyone has any objections, please let me know.
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From: Bart Van Assche <bart.vanassche@sandisk.com>
commit 55679c8d23d191c24ad133abc5647e3054ca8de1 upstream.
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> [bwh: Backported to 3.16: adjust filename] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- block/blk-cgroup.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -47,7 +47,7 @@ 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; /* for policies to test whether associated blkcg has changed */
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