From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752686AbdATOla (ORCPT ); Fri, 20 Jan 2017 09:41:30 -0500 Received: from terminus.zytor.com ([65.50.211.136]:57854 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752391AbdATOl2 (ORCPT ); Fri, 20 Jan 2017 09:41:28 -0500 Date: Fri, 20 Jan 2017 06:40:36 -0800 From: tip-bot for Waiman Long Message-ID: Cc: longman@redhat.com, arnd@arndb.de, peterz@infradead.org, akpm@linux-foundation.org, paulmck@linux.vnet.ibm.com, hpa@zytor.com, tglx@linutronix.de, mingo@kernel.org, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org Reply-To: linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@kernel.org, torvalds@linux-foundation.org, paulmck@linux.vnet.ibm.com, akpm@linux-foundation.org, hpa@zytor.com, arnd@arndb.de, longman@redhat.com, peterz@infradead.org In-Reply-To: <1484836312-6656-1-git-send-email-longman@redhat.com> References: <1484836312-6656-1-git-send-email-longman@redhat.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:locking/core] locking/rwsem: Remove unnecessary atomic_long_t casts Git-Commit-ID: 06321dd2d1ae5b5bdc847958ab9e71d22a29a33e 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: 06321dd2d1ae5b5bdc847958ab9e71d22a29a33e Gitweb: http://git.kernel.org/tip/06321dd2d1ae5b5bdc847958ab9e71d22a29a33e Author: Waiman Long AuthorDate: Thu, 19 Jan 2017 09:31:52 -0500 Committer: Ingo Molnar CommitDate: Fri, 20 Jan 2017 09:46:44 +0100 locking/rwsem: Remove unnecessary atomic_long_t casts Since sem->count had been changed to a atomic_long_t type, it is no longer necessary to use the atomic_long_t cast anymore. So remove them. Signed-off-by: Waiman Long Cc: Andrew Morton Cc: Arnd Bergmann Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-arch@vger.kernel.org Link: http://lkml.kernel.org/r/1484836312-6656-1-git-send-email-longman@redhat.com Signed-off-by: Ingo Molnar --- include/asm-generic/rwsem.h | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/include/asm-generic/rwsem.h b/include/asm-generic/rwsem.h index 5be122e..6c6a214 100644 --- a/include/asm-generic/rwsem.h +++ b/include/asm-generic/rwsem.h @@ -33,7 +33,7 @@ */ static inline void __down_read(struct rw_semaphore *sem) { - if (unlikely(atomic_long_inc_return_acquire((atomic_long_t *)&sem->count) <= 0)) + if (unlikely(atomic_long_inc_return_acquire(&sem->count) <= 0)) rwsem_down_read_failed(sem); } @@ -58,7 +58,7 @@ static inline void __down_write(struct rw_semaphore *sem) long tmp; tmp = atomic_long_add_return_acquire(RWSEM_ACTIVE_WRITE_BIAS, - (atomic_long_t *)&sem->count); + &sem->count); if (unlikely(tmp != RWSEM_ACTIVE_WRITE_BIAS)) rwsem_down_write_failed(sem); } @@ -68,7 +68,7 @@ static inline int __down_write_killable(struct rw_semaphore *sem) long tmp; tmp = atomic_long_add_return_acquire(RWSEM_ACTIVE_WRITE_BIAS, - (atomic_long_t *)&sem->count); + &sem->count); if (unlikely(tmp != RWSEM_ACTIVE_WRITE_BIAS)) if (IS_ERR(rwsem_down_write_failed_killable(sem))) return -EINTR; @@ -91,7 +91,7 @@ static inline void __up_read(struct rw_semaphore *sem) { long tmp; - tmp = atomic_long_dec_return_release((atomic_long_t *)&sem->count); + tmp = atomic_long_dec_return_release(&sem->count); if (unlikely(tmp < -1 && (tmp & RWSEM_ACTIVE_MASK) == 0)) rwsem_wake(sem); } @@ -102,7 +102,7 @@ static inline void __up_read(struct rw_semaphore *sem) static inline void __up_write(struct rw_semaphore *sem) { if (unlikely(atomic_long_sub_return_release(RWSEM_ACTIVE_WRITE_BIAS, - (atomic_long_t *)&sem->count) < 0)) + &sem->count) < 0)) rwsem_wake(sem); } @@ -120,8 +120,7 @@ static inline void __downgrade_write(struct rw_semaphore *sem) * read-locked region is ok to be re-ordered into the * write side. As such, rely on RELEASE semantics. */ - tmp = atomic_long_add_return_release(-RWSEM_WAITING_BIAS, - (atomic_long_t *)&sem->count); + tmp = atomic_long_add_return_release(-RWSEM_WAITING_BIAS, &sem->count); if (tmp < 0) rwsem_downgrade_wake(sem); }