From 024f9066165ffe9c8284431c78adcbcddd309831 Mon Sep 17 00:00:00 2001 From: Gui Jianfeng Date: Fri, 26 Feb 2010 08:56:15 +0100 Subject: cfq: Remove useless css reference get There's no need to take css reference here, for the caller has already called rcu_read_lock() to prevent cgroup from being removed. Signed-off-by: Gui Jianfeng Reviewed-by: Li Zefan Acked-by: Vivek Goyal Signed-off-by: Jens Axboe --- block/blk-cgroup.c | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'block/blk-cgroup.c') diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index e7dbbaf5fb3..c85d74cae20 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -23,20 +23,6 @@ static LIST_HEAD(blkio_list); struct blkio_cgroup blkio_root_cgroup = { .weight = 2*BLKIO_WEIGHT_DEFAULT }; EXPORT_SYMBOL_GPL(blkio_root_cgroup); -bool blkiocg_css_tryget(struct blkio_cgroup *blkcg) -{ - if (!css_tryget(&blkcg->css)) - return false; - return true; -} -EXPORT_SYMBOL_GPL(blkiocg_css_tryget); - -void blkiocg_css_put(struct blkio_cgroup *blkcg) -{ - css_put(&blkcg->css); -} -EXPORT_SYMBOL_GPL(blkiocg_css_put); - struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup) { return container_of(cgroup_subsys_state(cgroup, blkio_subsys_id), -- cgit v1.2.3