Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932796Ab3GZXnA (ORCPT ); Fri, 26 Jul 2013 19:43:00 -0400 Received: from mail-wg0-f50.google.com ([74.125.82.50]:58346 "EHLO mail-wg0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757607Ab3GZXmz (ORCPT ); Fri, 26 Jul 2013 19:42:55 -0400 From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Ingo Molnar , Li Zhong , "Paul E. McKenney" , Peter Zijlstra , Steven Rostedt , Thomas Gleixner , Borislav Petkov , Alex Shi , Paul Turner , Mike Galbraith , Vincent Guittot Subject: [PATCH 01/21] sched: Consolidate open coded preemptible() checks Date: Sat, 27 Jul 2013 01:42:24 +0200 Message-Id: <1374882164-32519-2-git-send-email-fweisbec@gmail.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1374882164-32519-1-git-send-email-fweisbec@gmail.com> References: <1374882164-32519-1-git-send-email-fweisbec@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2030 Lines: 65 preempt_schedule() and preempt_schedule_context() open code their preemptability checks. Use the standard API instead for consolidation. Signed-off-by: Frederic Weisbecker Cc: Ingo Molnar Cc: Li Zhong Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner Cc: Borislav Petkov Cc: Alex Shi Cc: Paul Turner Cc: Mike Galbraith Cc: Vincent Guittot --- kernel/context_tracking.c | 3 +-- kernel/sched/core.c | 4 +--- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c index 383f823..942835c 100644 --- a/kernel/context_tracking.c +++ b/kernel/context_tracking.c @@ -87,10 +87,9 @@ void user_enter(void) */ void __sched notrace preempt_schedule_context(void) { - struct thread_info *ti = current_thread_info(); enum ctx_state prev_ctx; - if (likely(ti->preempt_count || irqs_disabled())) + if (likely(!preemptible())) return; /* diff --git a/kernel/sched/core.c b/kernel/sched/core.c index b7c32cb..3fb7ace 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2510,13 +2510,11 @@ void __sched schedule_preempt_disabled(void) */ asmlinkage void __sched notrace preempt_schedule(void) { - struct thread_info *ti = current_thread_info(); - /* * If there is a non-zero preempt_count or interrupts are disabled, * we do not want to preempt the current task. Just return.. */ - if (likely(ti->preempt_count || irqs_disabled())) + if (likely(!preemptible())) return; do { -- 1.7.5.4 -- 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/