Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756473Ab1FHTdw (ORCPT ); Wed, 8 Jun 2011 15:33:52 -0400 Received: from e5.ny.us.ibm.com ([32.97.182.145]:38154 "EHLO e5.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755403Ab1FHTaf (ORCPT ); Wed, 8 Jun 2011 15:30:35 -0400 From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, darren@dvhart.com, patches@linaro.org, "Paul E. McKenney" , Manfred Spraul Subject: [PATCH tip/core/rcu 22/28] ipc,rcu: Convert call_rcu(free_un) to kfree_rcu() Date: Wed, 8 Jun 2011 12:30:01 -0700 Message-Id: <1307561407-13809-22-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.3.2 In-Reply-To: <20110608192943.GA13211@linux.vnet.ibm.com> References: <20110608192943.GA13211@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1766 Lines: 57 From: Lai Jiangshan The rcu callback free_un() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(free_un). Signed-off-by: Lai Jiangshan Signed-off-by: Paul E. McKenney Cc: Andrew Morton Cc: Manfred Spraul Reviewed-by: Josh Triplett --- ipc/sem.c | 10 ++-------- 1 files changed, 2 insertions(+), 8 deletions(-) diff --git a/ipc/sem.c b/ipc/sem.c index 34193ed..8b929e6 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -689,12 +689,6 @@ static int count_semzcnt (struct sem_array * sma, ushort semnum) return semzcnt; } -static void free_un(struct rcu_head *head) -{ - struct sem_undo *un = container_of(head, struct sem_undo, rcu); - kfree(un); -} - /* Free a semaphore set. freeary() is called with sem_ids.rw_mutex locked * as a writer and the spinlock for this semaphore set hold. sem_ids.rw_mutex * remains locked on exit. @@ -714,7 +708,7 @@ static void freeary(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp) un->semid = -1; list_del_rcu(&un->list_proc); spin_unlock(&un->ulp->lock); - call_rcu(&un->rcu, free_un); + kfree_rcu(un, rcu); } /* Wake up all pending processes and let them fail with EIDRM. */ @@ -1612,7 +1606,7 @@ void exit_sem(struct task_struct *tsk) sem_unlock(sma); wake_up_sem_queue_do(&tasks); - call_rcu(&un->rcu, free_un); + kfree_rcu(un, rcu); } kfree(ulp); } -- 1.7.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/