From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lai Jiangshan Subject: [PATCH 02/17] cgroup, rcu: convert call_rcu(free_cgroup_rcu) to kfree_rcu() Date: Tue, 15 Mar 2011 17:55:16 +0800 Message-ID: <4D7F3784.6090307@cn.fujitsu.com> References: <4D7F3610.6000809@cn.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4D7F3610.6000809-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Ingo Molnar , "Paul E. McKenney" , Jens Axboe , Trond Myklebust List-Id: containers.vger.kernel.org The rcu callback free_cgroup_rcu() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(free_cgroup_rcu). Signed-off-by: Lai Jiangshan --- kernel/cgroup.c | 9 +-------- 1 files changed, 1 insertions(+), 8 deletions(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index ad485d4..5c83c91 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -806,13 +806,6 @@ static int cgroup_call_pre_destroy(struct cgroup *cgrp) return ret; } -static void free_cgroup_rcu(struct rcu_head *obj) -{ - struct cgroup *cgrp = container_of(obj, struct cgroup, rcu_head); - - kfree(cgrp); -} - static void cgroup_diput(struct dentry *dentry, struct inode *inode) { /* is dentry a directory ? if so, kfree() associated cgroup */ @@ -850,7 +843,7 @@ static void cgroup_diput(struct dentry *dentry, struct inode *inode) */ BUG_ON(!list_empty(&cgrp->pidlists)); - call_rcu(&cgrp->rcu_head, free_cgroup_rcu); + kfree_rcu(cgrp, rcu_head); } iput(inode); } -- 1.7.4