From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934681AbcCJB4d (ORCPT ); Wed, 9 Mar 2016 20:56:33 -0500 Received: from smtp2.provo.novell.com ([137.65.250.81]:56666 "EHLO smtp2.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752406AbcCJB4R (ORCPT ); Wed, 9 Mar 2016 20:56:17 -0500 From: Davidlohr Bueso To: mingo@kernel.org Cc: peterz@infradead.org, dave@stgolabs.net, linux-kernel@vger.kernel.org, Davidlohr Bueso Subject: [PATCH 1/2] kernel/smp: Explicitly inline cds_lock helpers Date: Wed, 9 Mar 2016 17:55:35 -0800 Message-Id: <1457574936-19065-2-git-send-email-dbueso@suse.de> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1457574936-19065-1-git-send-email-dbueso@suse.de> References: <1457574936-19065-1-git-send-email-dbueso@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Davidlohr Bueso While the compiler tends to already to it for us (except for cds_unlock), make it explicit. These helpers mainly deal with the ->flags, are short-lived and can be called, for example, from smp_call_function_many(). Signed-off-by: Davidlohr Bueso --- kernel/smp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/smp.c b/kernel/smp.c index 822ffb1ada3f..c91e00178f8f 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -105,13 +105,13 @@ void __init call_function_init(void) * previous function call. For multi-cpu calls its even more interesting * as we'll have to ensure no other cpu is observing our csd. */ -static void csd_lock_wait(struct call_single_data *csd) +static __always_inline void csd_lock_wait(struct call_single_data *csd) { while (smp_load_acquire(&csd->flags) & CSD_FLAG_LOCK) cpu_relax(); } -static void csd_lock(struct call_single_data *csd) +static __always_inline void csd_lock(struct call_single_data *csd) { csd_lock_wait(csd); csd->flags |= CSD_FLAG_LOCK; @@ -124,7 +124,7 @@ static void csd_lock(struct call_single_data *csd) smp_wmb(); } -static void csd_unlock(struct call_single_data *csd) +static __always_inline void csd_unlock(struct call_single_data *csd) { WARN_ON(!(csd->flags & CSD_FLAG_LOCK)); -- 2.1.4