From patchwork Mon May 11 11:29:24 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "\(Exiting\) Baolin Wang" X-Patchwork-Id: 48270 Return-Path: X-Original-To: linaro@patches.linaro.org Delivered-To: linaro@patches.linaro.org Received: from mail-wi0-f197.google.com (mail-wi0-f197.google.com [209.85.212.197]) by ip-10-151-82-157.ec2.internal (Postfix) with ESMTPS id A331721550 for ; Mon, 11 May 2015 11:29:56 +0000 (UTC) Received: by wiun10 with SMTP id n10sf24985597wiu.1 for ; Mon, 11 May 2015 04:29:56 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:delivered-to:from:to:cc:subject :date:message-id:sender:precedence:list-id:x-original-sender :x-original-authentication-results:mailing-list:list-post:list-help :list-archive:list-unsubscribe; bh=hNzr7alFwCZF+s5/mus6yizeaDc1pFKSF09ckAyTcj4=; b=CTVVXFagvhIv3VTDBYH2tQt7aorel5fzU/+snJbvqImbFDHBDps+BOA48eTnd+xBtX bOZPkOxEyiu9a333hgtPDY0hvUU+s1Z86MSNrZDxNHFGI4b5fpl1lI4x32U4bJBjuXyA YE4VY0kVp+n5Kvn++sqJiGflIJCVv0YAuj9VyQpkcLNuMGUoGbSKescOrY11l3GfFll8 u+Evlq1M+E7fV581ajROqoz0HhpDpjyHB3lN5xgbftVo+XdZGsOh6UKmr0kvdkm7uGT+ V0ueDtmNKk6tReXfapSN2hMWw2elca2FdF1mlFeayFHoF+4x/EAf2dyuG/gT63pINQ9p Lm3Q== X-Gm-Message-State: ALoCoQmmNtSbQjmeplG/lRpmeuUpzppGR7aeHEr+z97FnvJJFTsHIXqvR7j7/GUCzpRvsazlxB4g X-Received: by 10.112.189.131 with SMTP id gi3mr7190769lbc.6.1431343795963; Mon, 11 May 2015 04:29:55 -0700 (PDT) MIME-Version: 1.0 X-BeenThere: patchwork-forward@linaro.org Received: by 10.152.5.131 with SMTP id s3ls571808las.65.gmail; Mon, 11 May 2015 04:29:55 -0700 (PDT) X-Received: by 10.112.120.199 with SMTP id le7mr7652314lbb.48.1431343795719; Mon, 11 May 2015 04:29:55 -0700 (PDT) Received: from mail-lb0-f179.google.com (mail-lb0-f179.google.com. [209.85.217.179]) by mx.google.com with ESMTPS id j2si8185781lam.114.2015.05.11.04.29.55 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 May 2015 04:29:55 -0700 (PDT) Received-SPF: pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.217.179 as permitted sender) client-ip=209.85.217.179; Received: by lbbzk7 with SMTP id zk7so91552523lbb.0 for ; Mon, 11 May 2015 04:29:55 -0700 (PDT) X-Received: by 10.112.150.100 with SMTP id uh4mr7583173lbb.112.1431343795428; Mon, 11 May 2015 04:29:55 -0700 (PDT) X-Forwarded-To: patchwork-forward@linaro.org X-Forwarded-For: patch@linaro.org patchwork-forward@linaro.org Delivered-To: patch@linaro.org Received: by 10.112.108.230 with SMTP id hn6csp1448990lbb; Mon, 11 May 2015 04:29:54 -0700 (PDT) X-Received: by 10.66.192.199 with SMTP id hi7mr18844370pac.15.1431343793022; Mon, 11 May 2015 04:29:53 -0700 (PDT) Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id lc15si17635642pab.25.2015.05.11.04.29.52; Mon, 11 May 2015 04:29:53 -0700 (PDT) Received-SPF: none (google.com: linux-kernel-owner@vger.kernel.org does not designate permitted sender hosts) client-ip=209.132.180.67; Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753771AbbEKL3s (ORCPT + 28 others); Mon, 11 May 2015 07:29:48 -0400 Received: from mail-pd0-f178.google.com ([209.85.192.178]:34564 "EHLO mail-pd0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753400AbbEKL3o (ORCPT ); Mon, 11 May 2015 07:29:44 -0400 Received: by pdbqa5 with SMTP id qa5so142148915pdb.1 for ; Mon, 11 May 2015 04:29:44 -0700 (PDT) X-Received: by 10.70.129.17 with SMTP id ns17mr18553340pdb.12.1431343784257; Mon, 11 May 2015 04:29:44 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([175.111.195.49]) by mx.google.com with ESMTPSA id fk10sm9343722pab.18.2015.05.11.04.29.30 (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 11 May 2015 04:29:43 -0700 (PDT) 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 v3 21/22] time/posix-cpu-timers:Convert to the 64bit methods for k_clock structure Date: Mon, 11 May 2015 19:29:24 +0800 Message-Id: <1431343764-30197-1-git-send-email-baolin.wang@linaro.org> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org Precedence: list List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: baolin.wang@linaro.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.217.179 as permitted sender) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , This patch changes to the new methods of k_clock structure with timespec64 type, converts the timespec/itimerspec type to timespec64/itimerspec64 type for the callback function in posix-cpu-timers.c file. Signed-off-by: Baolin Wang --- kernel/time/posix-cpu-timers.c | 83 +++++++++++++++++++++------------------- 1 file changed, 44 insertions(+), 39 deletions(-) diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c index 0075da7..a4651cd 100644 --- a/kernel/time/posix-cpu-timers.c +++ b/kernel/time/posix-cpu-timers.c @@ -52,7 +52,7 @@ static int check_clock(const clockid_t which_clock) } static inline unsigned long long -timespec_to_sample(const clockid_t which_clock, const struct timespec *tp) +timespec64_to_sample(const clockid_t which_clock, const struct timespec64 *tp) { unsigned long long ret; @@ -60,19 +60,19 @@ timespec_to_sample(const clockid_t which_clock, const struct timespec *tp) if (CPUCLOCK_WHICH(which_clock) == CPUCLOCK_SCHED) { ret = (unsigned long long)tp->tv_sec * NSEC_PER_SEC + tp->tv_nsec; } else { - ret = cputime_to_expires(timespec_to_cputime(tp)); + ret = cputime_to_expires(timespec64_to_cputime(tp)); } return ret; } -static void sample_to_timespec(const clockid_t which_clock, +static void sample_to_timespec64(const clockid_t which_clock, unsigned long long expires, - struct timespec *tp) + struct timespec64 *tp) { if (CPUCLOCK_WHICH(which_clock) == CPUCLOCK_SCHED) - *tp = ns_to_timespec(expires); + *tp = ns_to_timespec64(expires); else - cputime_to_timespec((__force cputime_t)expires, tp); + cputime_to_timespec64((__force cputime_t)expires, tp); } /* @@ -141,7 +141,7 @@ static inline unsigned long long virt_ticks(struct task_struct *p) } static int -posix_cpu_clock_getres(const clockid_t which_clock, struct timespec *tp) +posix_cpu_clock_getres(const clockid_t which_clock, struct timespec64 *tp) { int error = check_clock(which_clock); if (!error) { @@ -160,7 +160,7 @@ posix_cpu_clock_getres(const clockid_t which_clock, struct timespec *tp) } static int -posix_cpu_clock_set(const clockid_t which_clock, const struct timespec *tp) +posix_cpu_clock_set(const clockid_t which_clock, const struct timespec64 *tp) { /* * You can never reset a CPU clock, but we check for other errors @@ -263,7 +263,7 @@ static int cpu_clock_sample_group(const clockid_t which_clock, static int posix_cpu_clock_get_task(struct task_struct *tsk, const clockid_t which_clock, - struct timespec *tp) + struct timespec64 *tp) { int err = -EINVAL; unsigned long long rtn; @@ -277,13 +277,14 @@ static int posix_cpu_clock_get_task(struct task_struct *tsk, } if (!err) - sample_to_timespec(which_clock, rtn, tp); + sample_to_timespec64(which_clock, rtn, tp); return err; } -static int posix_cpu_clock_get(const clockid_t which_clock, struct timespec *tp) +static int posix_cpu_clock_get(const clockid_t which_clock, + struct timespec64 *tp) { const pid_t pid = CPUCLOCK_PID(which_clock); int err = -EINVAL; @@ -598,7 +599,7 @@ static inline void posix_cpu_timer_kick_nohz(void) { } * and try again. (This happens when the timer is in the middle of firing.) */ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags, - struct itimerspec *new, struct itimerspec *old) + struct itimerspec64 *new, struct itimerspec64 *old) { unsigned long flags; struct sighand_struct *sighand; @@ -608,7 +609,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags, WARN_ON_ONCE(p == NULL); - new_expires = timespec_to_sample(timer->it_clock, &new->it_value); + new_expires = timespec64_to_sample(timer->it_clock, &new->it_value); /* * Protect against sighand release/switch in exit/exec and p->cpu_timers @@ -669,7 +670,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags, bump_cpu_timer(timer, val); if (val < timer->it.cpu.expires) { old_expires = timer->it.cpu.expires - val; - sample_to_timespec(timer->it_clock, + sample_to_timespec64(timer->it_clock, old_expires, &old->it_value); } else { @@ -709,7 +710,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags, * Install the new reload setting, and * set up the signal and overrun bookkeeping. */ - timer->it.cpu.incr = timespec_to_sample(timer->it_clock, + timer->it.cpu.incr = timespec64_to_sample(timer->it_clock, &new->it_interval); /* @@ -734,7 +735,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags, ret = 0; out: if (old) { - sample_to_timespec(timer->it_clock, + sample_to_timespec64(timer->it_clock, old_incr, &old->it_interval); } if (!ret) @@ -742,7 +743,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags, return ret; } -static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec *itp) +static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec64 *itp) { unsigned long long now; struct task_struct *p = timer->it.cpu.task; @@ -752,7 +753,7 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec *itp) /* * Easy part: convert the reload time. */ - sample_to_timespec(timer->it_clock, + sample_to_timespec64(timer->it_clock, timer->it.cpu.incr, &itp->it_interval); if (timer->it.cpu.expires == 0) { /* Timer not armed at all. */ @@ -782,7 +783,7 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec *itp) * Call the timer disarmed, nothing else to do. */ timer->it.cpu.expires = 0; - sample_to_timespec(timer->it_clock, timer->it.cpu.expires, + sample_to_timespec64(timer->it_clock, timer->it.cpu.expires, &itp->it_value); } else { cpu_timer_sample_group(timer->it_clock, p, &now); @@ -791,7 +792,7 @@ static void posix_cpu_timer_get(struct k_itimer *timer, struct itimerspec *itp) } if (now < timer->it.cpu.expires) { - sample_to_timespec(timer->it_clock, + sample_to_timespec64(timer->it_clock, timer->it.cpu.expires - now, &itp->it_value); } else { @@ -1248,6 +1249,8 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags, struct timespec *rqtp, struct itimerspec *it) { struct k_itimer timer; + struct timespec64 ts64; + struct itimerspec64 *it64; int error; /* @@ -1260,13 +1263,14 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags, error = posix_cpu_timer_create(&timer); timer.it_process = current; if (!error) { - static struct itimerspec zero_it; + static struct itimerspec64 zero_it; memset(it, 0, sizeof *it); it->it_value = *rqtp; spin_lock_irq(&timer.it_lock); - error = posix_cpu_timer_set(&timer, flags, it, NULL); + *it64 = itimerspec_to_itimerspec64(it); + error = posix_cpu_timer_set(&timer, flags, it64, NULL); if (error) { spin_unlock_irq(&timer.it_lock); return error; @@ -1295,8 +1299,9 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags, /* * We were interrupted by a signal. */ - sample_to_timespec(which_clock, timer.it.cpu.expires, rqtp); - error = posix_cpu_timer_set(&timer, 0, &zero_it, it); + sample_to_timespec64(which_clock, timer.it.cpu.expires, &ts64); + *rqtp = timespec64_to_timespec(ts64); + error = posix_cpu_timer_set(&timer, 0, &zero_it, it64); if (!error) { /* * Timer is now unarmed, deletion can not fail. @@ -1395,12 +1400,12 @@ static long posix_cpu_nsleep_restart(struct restart_block *restart_block) #define THREAD_CLOCK MAKE_THREAD_CPUCLOCK(0, CPUCLOCK_SCHED) static int process_cpu_clock_getres(const clockid_t which_clock, - struct timespec *tp) + struct timespec64 *tp) { return posix_cpu_clock_getres(PROCESS_CLOCK, tp); } static int process_cpu_clock_get(const clockid_t which_clock, - struct timespec *tp) + struct timespec64 *tp) { return posix_cpu_clock_get(PROCESS_CLOCK, tp); } @@ -1420,12 +1425,12 @@ static long process_cpu_nsleep_restart(struct restart_block *restart_block) return -EINVAL; } static int thread_cpu_clock_getres(const clockid_t which_clock, - struct timespec *tp) + struct timespec64 *tp) { return posix_cpu_clock_getres(THREAD_CLOCK, tp); } static int thread_cpu_clock_get(const clockid_t which_clock, - struct timespec *tp) + struct timespec64 *tp) { return posix_cpu_clock_get(THREAD_CLOCK, tp); } @@ -1436,37 +1441,37 @@ static int thread_cpu_timer_create(struct k_itimer *timer) } struct k_clock clock_posix_cpu = { - .clock_getres = posix_cpu_clock_getres, - .clock_set = posix_cpu_clock_set, - .clock_get = posix_cpu_clock_get, + .clock_getres64 = posix_cpu_clock_getres, + .clock_set64 = posix_cpu_clock_set, + .clock_get64 = posix_cpu_clock_get, .timer_create = posix_cpu_timer_create, .nsleep = posix_cpu_nsleep, .nsleep_restart = posix_cpu_nsleep_restart, - .timer_set = posix_cpu_timer_set, + .timer_set64 = posix_cpu_timer_set, .timer_del = posix_cpu_timer_del, - .timer_get = posix_cpu_timer_get, + .timer_get64 = posix_cpu_timer_get, }; static __init int init_posix_cpu_timers(void) { struct k_clock process = { - .clock_getres = process_cpu_clock_getres, - .clock_get = process_cpu_clock_get, + .clock_getres64 = process_cpu_clock_getres, + .clock_get64 = process_cpu_clock_get, .timer_create = process_cpu_timer_create, .nsleep = process_cpu_nsleep, .nsleep_restart = process_cpu_nsleep_restart, }; struct k_clock thread = { - .clock_getres = thread_cpu_clock_getres, - .clock_get = thread_cpu_clock_get, + .clock_getres64 = thread_cpu_clock_getres, + .clock_get64 = thread_cpu_clock_get, .timer_create = thread_cpu_timer_create, }; - struct timespec ts; + struct timespec64 ts; posix_timers_register_clock(CLOCK_PROCESS_CPUTIME_ID, &process); posix_timers_register_clock(CLOCK_THREAD_CPUTIME_ID, &thread); - cputime_to_timespec(cputime_one_jiffy, &ts); + cputime_to_timespec64(cputime_one_jiffy, &ts); onecputick = ts.tv_nsec; WARN_ON(ts.tv_sec != 0);