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| From | Tejun Heo <tj@kernel.org> |
| Newsgroups | linux.kernel |
| Subject | [PATCH 1/7] blkcg: remove unnecessary request_list->blkg NULL test in blk_put_rl() |
| Date | Wed, 24 Jun 2015 04:50:03 +0200 |
| Message-ID | <pEIVd-554-45@gated-at.bofh.it> (permalink) |
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| X-Original-Cc | linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, vgoyal@redhat.com, avanzini.arianna@gmail.com, kernel-team@fb.com, Tejun Heo <tj@kernel.org> |
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| Xref | aioe.org linux.kernel:1171043 |
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Since ec13b1d6f0a0 ("blkcg: always create the blkcg_gq for the root
blkcg"), a request_list always has its blkg associated. Drop
unnecessary rl->blkg NULL test from blk_put_rl().
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
---
include/linux/blk-cgroup.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 07a32b8..50d1009 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -378,8 +378,7 @@ static inline struct request_list *blk_get_rl(struct request_queue *q,
*/
static inline void blk_put_rl(struct request_list *rl)
{
- /* root_rl may not have blkg set */
- if (rl->blkg && rl->blkg->blkcg != &blkcg_root)
+ if (rl->blkg->blkcg != &blkcg_root)
blkg_put(rl->blkg);
}
--
2.4.3
--
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[PATCH 1/7] blkcg: remove unnecessary request_list->blkg NULL test in blk_put_rl() Tejun Heo <tj@kernel.org> - 2015-06-24 04:50 +0200
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