From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753465Ab1GUSaw (ORCPT ); Thu, 21 Jul 2011 14:30:52 -0400 Received: from hera.kernel.org ([140.211.167.34]:56777 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752554Ab1GUSav (ORCPT ); Thu, 21 Jul 2011 14:30:51 -0400 Date: Thu, 21 Jul 2011 18:30:39 GMT From: tip-bot for Richard Kennedy Message-ID: Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, a.p.zijlstra@chello.nl, richard@rsk.demon.co.uk, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, a.p.zijlstra@chello.nl, tglx@linutronix.de, richard@rsk.demon.co.uk, mingo@elte.hu In-Reply-To: <1310726492.1977.5.camel@castor.rsk> References: <1310726492.1977.5.camel@castor.rsk> To: linux-tip-commits@vger.kernel.org Subject: [tip:sched/core] sched: Reorder root_domain to remove 64 bit alignment padding Git-Commit-ID: 26a148eb9c790149750f7e77da0d96029443d400 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Thu, 21 Jul 2011 18:30:40 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 26a148eb9c790149750f7e77da0d96029443d400 Gitweb: http://git.kernel.org/tip/26a148eb9c790149750f7e77da0d96029443d400 Author: Richard Kennedy AuthorDate: Fri, 15 Jul 2011 11:41:31 +0100 Committer: Ingo Molnar CommitDate: Thu, 21 Jul 2011 18:01:52 +0200 sched: Reorder root_domain to remove 64 bit alignment padding Reorder root_domain to remove 8 bytes of alignment padding on 64 bit builds, this shrinks the size from 1736 to 1728 bytes, therefore using one fewer cachelines. Signed-off-by: Richard Kennedy Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1310726492.1977.5.camel@castor.rsk Signed-off-by: Ingo Molnar --- kernel/sched.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index f107204..e3f0bac 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -422,6 +422,7 @@ struct rt_rq { */ struct root_domain { atomic_t refcount; + atomic_t rto_count; struct rcu_head rcu; cpumask_var_t span; cpumask_var_t online; @@ -431,7 +432,6 @@ struct root_domain { * one runnable RT task. */ cpumask_var_t rto_mask; - atomic_t rto_count; struct cpupri cpupri; };