From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754600AbaDRNLj (ORCPT ); Fri, 18 Apr 2014 09:11:39 -0400 Received: from terminus.zytor.com ([198.137.202.10]:39034 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753697AbaDRNLa (ORCPT ); Fri, 18 Apr 2014 09:11:30 -0400 Date: Fri, 18 Apr 2014 06:10:20 -0700 From: tip-bot for Peter Zijlstra Message-ID: Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org, will.deacon@arm.com, torvalds@linux-foundation.org, james.hogan@imgtec.com, peterz@infradead.org, paulmck@linux.vnet.ibm.com, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, james.hogan@imgtec.com, torvalds@linux-foundation.org, will.deacon@arm.com, peterz@infradead.org, paulmck@linux.vnet.ibm.com, tglx@linutronix.de To: linux-tip-commits@vger.kernel.org Subject: [tip:locking/core] arch,metag: Convert smp_mb__*() Git-Commit-ID: 40074dece684fc61ab72cfc1689d564cba1c5f64 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 40074dece684fc61ab72cfc1689d564cba1c5f64 Gitweb: http://git.kernel.org/tip/40074dece684fc61ab72cfc1689d564cba1c5f64 Author: Peter Zijlstra AuthorDate: Thu, 13 Mar 2014 19:00:36 +0100 Committer: Ingo Molnar CommitDate: Fri, 18 Apr 2014 14:20:38 +0200 arch,metag: Convert smp_mb__*() Implement the new barriers; as per the old versions the metag atomic imply a full barrier. Signed-off-by: Peter Zijlstra Acked-by: Paul E. McKenney Link: http://lkml.kernel.org/n/tip-dqnyo215kq38wi4xcxnbpjw3@git.kernel.org Cc: James Hogan Cc: Linus Torvalds Cc: Will Deacon Cc: linux-kernel@vger.kernel.org Cc: linux-metag@vger.kernel.org Signed-off-by: Ingo Molnar --- arch/metag/include/asm/atomic.h | 6 +----- arch/metag/include/asm/barrier.h | 3 +++ arch/metag/include/asm/bitops.h | 6 ------ 3 files changed, 4 insertions(+), 11 deletions(-) diff --git a/arch/metag/include/asm/atomic.h b/arch/metag/include/asm/atomic.h index 307ecd2..470e365 100644 --- a/arch/metag/include/asm/atomic.h +++ b/arch/metag/include/asm/atomic.h @@ -4,6 +4,7 @@ #include #include #include +#include #if defined(CONFIG_METAG_ATOMICITY_IRQSOFF) /* The simple UP case. */ @@ -39,11 +40,6 @@ #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -#define smp_mb__before_atomic_dec() barrier() -#define smp_mb__after_atomic_dec() barrier() -#define smp_mb__before_atomic_inc() barrier() -#define smp_mb__after_atomic_inc() barrier() - #endif #define atomic_dec_if_positive(v) atomic_sub_if_positive(1, v) diff --git a/arch/metag/include/asm/barrier.h b/arch/metag/include/asm/barrier.h index 5d6b4b4..d1768c6 100644 --- a/arch/metag/include/asm/barrier.h +++ b/arch/metag/include/asm/barrier.h @@ -97,4 +97,7 @@ do { \ ___p1; \ }) +#define smp_mb__before_atomic() barrier() +#define smp_mb__after_atomic() barrier() + #endif /* _ASM_METAG_BARRIER_H */ diff --git a/arch/metag/include/asm/bitops.h b/arch/metag/include/asm/bitops.h index c0d0df0..2671134 100644 --- a/arch/metag/include/asm/bitops.h +++ b/arch/metag/include/asm/bitops.h @@ -5,12 +5,6 @@ #include #include -/* - * clear_bit() doesn't provide any barrier for the compiler. - */ -#define smp_mb__before_clear_bit() barrier() -#define smp_mb__after_clear_bit() barrier() - #ifdef CONFIG_SMP /* * These functions are the basis of our bit ops.