From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753169Ab1LSO6W (ORCPT ); Mon, 19 Dec 2011 09:58:22 -0500 Received: from service87.mimecast.com ([91.220.42.44]:43600 "EHLO service87.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752931Ab1LSO6S (ORCPT ); Mon, 19 Dec 2011 09:58:18 -0500 From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Russell King , Ingo Molnar , Peter Zijlstra , Catalin Marinas , Frank Rowand Subject: [RFC PATCH v2 1/6] sched: Introduce the finish_arch_post_lock_switch() scheduler hook Date: Mon, 19 Dec 2011 14:57:48 +0000 Message-Id: <1324306673-4282-2-git-send-email-catalin.marinas@arm.com> X-Mailer: git-send-email 1.7.4.2.g597a6 In-Reply-To: <1324306673-4282-1-git-send-email-catalin.marinas@arm.com> References: <1324306673-4282-1-git-send-email-catalin.marinas@arm.com> X-OriginalArrivalTime: 19 Dec 2011 14:58:08.0574 (UTC) FILETIME=[9EB495E0:01CCBE5E] X-MC-Unique: 111121914581403801 Content-Type: text/plain; charset=WINDOWS-1252 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by nfs id pBJEwZeH030985 This hook is called by the scheduler after rq->lock has been released and interrupts enabled. It will be used in subsequent patches on the ARM architecture. Signed-off-by: Catalin Marinas Reviewed-by: Frank Rowand Cc: Russell King Cc: Ingo Molnar Cc: Peter Zijlstra --- kernel/sched.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index d6b149c..35390bf 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -984,6 +984,9 @@ static inline u64 global_rt_runtime(void) #ifndef finish_arch_switch # define finish_arch_switch(prev) do { } while (0) #endif +#ifndef finish_arch_post_lock_switch +# define finish_arch_post_lock_switch() do { } while (0) +#endif static inline int task_current(struct rq *rq, struct task_struct *p) { @@ -3204,6 +3207,7 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev) local_irq_enable(); #endif /* __ARCH_WANT_INTERRUPTS_ON_CTXSW */ finish_lock_switch(rq, prev); + finish_arch_post_lock_switch(); fire_sched_in_preempt_notifiers(current); if (mm)