blkcg: blkg_rwstat_read() was missing inline

blkg_rwstat_read() in blk-cgroup.h was missing inline modifier causing
compile warning depending on configuration.  Add it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 1 insertions, 1 deletions

diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index 222063d36355..ef6550a67a69 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -279,7 +279,7 @@ static inline void blkg_rwstat_add(struct blkg_rwstat *rwstat,
  * This function can be called without synchronization and takes care of
  * u64 atomicity.
  */
-static struct blkg_rwstat blkg_rwstat_read(struct blkg_rwstat *rwstat)
+static inline struct blkg_rwstat blkg_rwstat_read(struct blkg_rwstat *rwstat)
 {
         unsigned int start;
         struct blkg_rwstat tmp;