Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753123AbbFAL5u (ORCPT ); Mon, 1 Jun 2015 07:57:50 -0400 Received: from mail-pd0-f172.google.com ([209.85.192.172]:35204 "EHLO mail-pd0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753003AbbFAL5i (ORCPT ); Mon, 1 Jun 2015 07:57:38 -0400 From: Baolin Wang To: tglx@linutronix.de Cc: arnd@arndb.de, linux-kernel@vger.kernel.org, baolin.wang@linaro.org, y2038@lists.linaro.org Subject: [PATCH v4 13/25] posix-timers:Change the implementation for clock_gettime syscall function Date: Mon, 1 Jun 2015 19:57:24 +0800 Message-Id: <1433159844-5034-1-git-send-email-baolin.wang@linaro.org> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1617 Lines: 51 This patch splits out the guts of the clock_gettime syscall and changes the clock_gettime syscall implementation to prepare the converting to 64bit methods for the clock_gettime syscall function in posix-timers.c file. Signed-off-by: Baolin Wang --- kernel/time/posix-timers.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 06e2549..12affd5 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -1117,17 +1117,23 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, return __clock_settime(which_clock, &new_tp); } -SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock, - struct timespec __user *,tp) +static int __clock_gettime(clockid_t which_clock, struct timespec *ts) { struct k_clock *kc = clockid_to_kclock(which_clock); - struct timespec kernel_tp; - int error; if (!kc) return -EINVAL; - error = kc->clock_get(which_clock, &kernel_tp); + return kc->clock_get(which_clock, ts); +} + +SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock, + struct timespec __user *,tp) +{ + struct timespec kernel_tp; + int error; + + error = __clock_gettime(which_clock, &kernel_tp); if (!error && copy_to_user(tp, &kernel_tp, sizeof (kernel_tp))) error = -EFAULT; -- 1.7.9.5 -- 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/