From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752045AbaBNIwM (ORCPT ); Fri, 14 Feb 2014 03:52:12 -0500 Received: from www84.your-server.de ([213.133.104.84]:34697 "EHLO www84.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751749AbaBNIwH (ORCPT ); Fri, 14 Feb 2014 03:52:07 -0500 From: Stefani Seibold To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, x86@kernel.org, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, ak@linux.intel.com, aarcange@redhat.com, john.stultz@linaro.org, luto@amacapital.net, xemul@parallels.com, gorcunov@openvz.org, andriy.shevchenko@linux.intel.com Cc: Martin.Runge@rohde-schwarz.com, Andreas.Brief@rohde-schwarz.com, Stefani Seibold Subject: [PATCH v16 06/10] cleanup __vdso_gettimeofday Date: Fri, 14 Feb 2014 09:52:40 +0100 Message-Id: <1392367964-32118-7-git-send-email-stefani@seibold.net> X-Mailer: git-send-email 1.8.5.4 In-Reply-To: <1392367964-32118-1-git-send-email-stefani@seibold.net> References: <1392367964-32118-1-git-send-email-stefani@seibold.net> X-Authenticated-Sender: stefani@seibold.net Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch do a little cleanup for the __vdso_gettimeofday() function. It kick out an unneeded ret local variable and makes the code faster if only the timezone is needed. Signed-off-by: Stefani Seibold --- arch/x86/vdso/vclock_gettime.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c index 743f277..09dae4a 100644 --- a/arch/x86/vdso/vclock_gettime.c +++ b/arch/x86/vdso/vclock_gettime.c @@ -259,13 +259,12 @@ int clock_gettime(clockid_t, struct timespec *) notrace int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz) { - long ret = VCLOCK_NONE; - if (likely(tv != NULL)) { BUILD_BUG_ON(offsetof(struct timeval, tv_usec) != offsetof(struct timespec, tv_nsec) || sizeof(*tv) != sizeof(struct timespec)); - ret = do_realtime((struct timespec *)tv); + if (unlikely(do_realtime((struct timespec *)tv) == VCLOCK_NONE)) + return vdso_fallback_gtod(tv, tz); tv->tv_usec /= 1000; } if (unlikely(tz != NULL)) { @@ -274,8 +273,6 @@ notrace int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz) tz->tz_dsttime = gtod->sys_tz.tz_dsttime; } - if (ret == VCLOCK_NONE) - return vdso_fallback_gtod(tv, tz); return 0; } int gettimeofday(struct timeval *, struct timezone *) -- 1.8.5.4