From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752754Ab0EKXeR (ORCPT ); Tue, 11 May 2010 19:34:17 -0400 Received: from e1.ny.us.ibm.com ([32.97.182.141]:37698 "EHLO e1.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753312Ab0EKXdQ (ORCPT ); Tue, 11 May 2010 19:33:16 -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, dvhltc@us.ibm.com, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, "Paul E. McKenney" , Mathieu Desnoyers , "Cc: Christoph Lameter" , Pekka Enberg , Matt Mackall Subject: [PATCH RFC tip/core/rcu 08/11] mm: remove all rcu head initializations Date: Tue, 11 May 2010 16:33:03 -0700 Message-Id: <1273620786-20392-8-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.0.6 In-Reply-To: <20100511233241.GA20250@linux.vnet.ibm.com> References: <20100511233241.GA20250@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Remove all rcu head inits. We don't care about the RCU head state before passing it to call_rcu() anyway. Only leave the "on_stack" variants so debugobjects can keep track of objects on stack. Signed-off-by: Mathieu Desnoyers Signed-off-by: Paul E. McKenney Cc: Cc: Christoph Lameter Cc: Pekka Enberg Cc: Matt Mackall Cc: Andrew Morton --- mm/backing-dev.c | 1 - mm/slob.c | 1 - 2 files changed, 0 insertions(+), 2 deletions(-) diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 707d0dc..f03d8d6 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -663,7 +663,6 @@ int bdi_init(struct backing_dev_info *bdi) bdi->max_ratio = 100; bdi->max_prop_frac = PROP_FRAC_BASE; spin_lock_init(&bdi->wb_lock); - INIT_RCU_HEAD(&bdi->rcu_head); INIT_LIST_HEAD(&bdi->bdi_list); INIT_LIST_HEAD(&bdi->wb_list); INIT_LIST_HEAD(&bdi->work_list); diff --git a/mm/slob.c b/mm/slob.c index 837ebd6..6de238d 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -647,7 +647,6 @@ void kmem_cache_free(struct kmem_cache *c, void *b) if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) { struct slob_rcu *slob_rcu; slob_rcu = b + (c->size - sizeof(struct slob_rcu)); - INIT_RCU_HEAD(&slob_rcu->head); slob_rcu->size = c->size; call_rcu(&slob_rcu->head, kmem_rcu_free); } else { -- 1.7.0.6