From: Jiang Biao <jiang.biao2@zte.com.cn>
Date: Thu, 19 Apr 2018 12:04:26 +0800
Subject: [PATCH] blkcg: small fix on comment in blkcg_init_queue
Git-commit: bea548831b8cee347181132eacd8b9711dfced92
Patch-mainline: v4.17-rc3
References: bsc#1104967,FATE#325924
The comment before blkg_create() in blkcg_init_queue() was moved
from blkcg_activate_policy() by commit ec13b1d6f0a0457312e615, but
it does not suit for the new context.
Signed-off-by: Jiang Biao <jiang.biao2@zte.com.cn>
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
CC: Tejun Heo <tj@kernel.org>
CC: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
block/blk-cgroup.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 21bc449d01c0..79da2a723b68 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1177,11 +1177,7 @@ int blkcg_init_queue(struct request_queue *q)
preloaded = !radix_tree_preload(GFP_KERNEL);
- /*
- * Make sure the root blkg exists and count the existing blkgs. As
- * @q is bypassing at this point, blkg_lookup_create() can't be
- * used. Open code insertion.
- */
+ /* Make sure the root blkg exists. */
rcu_read_lock();
spin_lock_irq(q->queue_lock);
blkg = blkg_create(&blkcg_root, q, new_blkg);
--
2.16.4