From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755552Ab2ATRms (ORCPT ); Fri, 20 Jan 2012 12:42:48 -0500 Received: from service87.mimecast.com ([91.220.42.44]:56786 "EHLO service87.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755491Ab2ATRmo (ORCPT ); Fri, 20 Jan 2012 12:42:44 -0500 From: Catalin Marinas To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Russell King , Ingo Molnar , Peter Zijlstra , Will Deacon , Frank Rowand Subject: [PATCH v3 1/6] sched: Introduce the finish_arch_post_lock_switch() scheduler hook Date: Fri, 20 Jan 2012 17:42:27 +0000 Message-Id: <1327081352-13178-2-git-send-email-catalin.marinas@arm.com> X-Mailer: git-send-email 1.7.9.rc1.3.gb6310 In-Reply-To: <1327081352-13178-1-git-send-email-catalin.marinas@arm.com> References: <1327081352-13178-1-git-send-email-catalin.marinas@arm.com> X-OriginalArrivalTime: 20 Jan 2012 17:42:37.0787 (UTC) FILETIME=[E66EFAB0:01CCD79A] X-MC-Unique: 112012017424101201 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 q0KHhSjw006975 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. Reviewed-by: Will Deacon Reviewed-by: Frank Rowand Cc: Russell King Cc: Ingo Molnar Cc: Peter Zijlstra Signed-off-by: Catalin Marinas --- kernel/sched/core.c | 1 + kernel/sched/sched.h | 3 +++ 2 files changed, 4 insertions(+), 0 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index df00cb0..f1db6d8 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1937,6 +1937,7 @@ 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(); trace_sched_stat_sleeptime(current, rq->clock); fire_sched_in_preempt_notifiers(current); diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 98c0c26..d72483d 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -692,6 +692,9 @@ static inline int task_running(struct rq *rq, struct task_struct *p) #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 #ifndef __ARCH_WANT_UNLOCKED_CTXSW static inline void prepare_lock_switch(struct rq *rq, struct task_struct *next)