From: Baolin Wang <baolin.wang@linaro.org>
To: tglx@linutronix.de
Cc: pang.xunlei@linaro.org, peterz@infradead.org,
heiko.carstens@de.ibm.com, paulus@samba.org, cl@linux.com,
heenasirwani@gmail.com, linux-arch@vger.kernel.org,
linux-s390@vger.kernel.org, y2038@lists.linaro.org,
rafael.j.wysocki@intel.com, ahh@google.com, fweisbec@gmail.com,
pjt@google.com, riel@redhat.com, arnd@arndb.de,
richardcochran@gmail.com, schwidefsky@de.ibm.com,
john.stultz@linaro.org, rth@twiddle.net, baolin.wang@linaro.org,
gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, tj@kernel.org, linux390@de.ibm.com,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 10/11] time/posix-cpu-timers:Convert to the 64bit methods for k_clock structure
Date: Mon, 20 Apr 2015 13:57:38 +0800 [thread overview]
Message-ID: <1429509459-17068-11-git-send-email-baolin.wang@linaro.org> (raw)
In-Reply-To: <1429509459-17068-1-git-send-email-baolin.wang@linaro.org>
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 <baolin.wang@linaro.org>
---
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..51cfead 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);
--
1.7.9.5
next prev parent reply other threads:[~2015-04-20 5:59 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-20 5:57 [PATCH 00/11] Convert the posix_clock_operations and k_clock structure to ready for 2038 Baolin Wang
2015-04-20 5:57 ` [PATCH 01/11] linux/time64.h:Introduce the 'struct itimerspec64' for 64bit Baolin Wang
2015-04-20 9:49 ` Sergei Shtylyov
2015-04-20 10:55 ` Baolin Wang
2015-04-20 19:14 ` Thomas Gleixner
2015-04-20 19:59 ` Thomas Gleixner
2015-04-21 8:19 ` Baolin Wang
2015-04-20 5:57 ` [PATCH 02/11] timekeeping:Introduce the current_kernel_time64() function with timespec64 type Baolin Wang
2015-04-20 5:57 ` [PATCH 03/11] time/hrtimer:Introduce hrtimer_get_res64() with timespec64 type for getting the timer resolution Baolin Wang
2015-04-20 19:15 ` Thomas Gleixner
2015-04-20 5:57 ` [PATCH 04/11] posix timers:Introduce the 64bit methods with timespec64 type for k_clock structure Baolin Wang
2015-04-20 20:40 ` Thomas Gleixner
2015-04-21 8:59 ` [Y2038] " Arnd Bergmann
2015-04-21 14:14 ` Thomas Gleixner
2015-04-21 14:57 ` Arnd Bergmann
2015-04-21 15:13 ` Thomas Gleixner
2015-04-21 15:40 ` Arnd Bergmann
2015-04-21 20:13 ` Thomas Gleixner
2015-04-22 8:45 ` Thomas Gleixner
2015-04-22 10:11 ` Richard Cochran
2015-04-22 10:44 ` David Laight
2015-04-22 11:07 ` Arnd Bergmann
2015-04-22 13:37 ` Thomas Gleixner
2015-04-22 13:50 ` Arnd Bergmann
2015-04-22 14:54 ` Richard Cochran
2015-04-22 15:37 ` Arnd Bergmann
2015-04-22 15:14 ` Luc Van Oostenryck
2015-04-22 15:38 ` Arnd Bergmann
2015-04-20 5:57 ` [PATCH 05/11] time/posix-timers:Convert to the 64bit methods for k_clock callback functions Baolin Wang
2015-04-20 20:48 ` Thomas Gleixner
2015-04-21 8:36 ` Baolin Wang
2015-04-21 8:45 ` [Y2038] " Arnd Bergmann
2015-04-21 8:55 ` Baolin Wang
2015-04-20 5:57 ` [PATCH 06/11] char/mmtimer:Convert to the 64bit methods for k_clock callback function Baolin Wang
2015-04-20 5:57 ` [PATCH 07/11] time/alarmtimer:Convert to the new methods for k_clock structure Baolin Wang
2015-04-20 5:57 ` [PATCH 08/11] time/posix-clock:Convert to the 64bit methods for k_clock and posix_clock_operations structure Baolin Wang
2015-04-20 5:57 ` [PATCH 09/11] cputime:Introduce the cputime_to_timespec64/timespec64_to_cputime function Baolin Wang
2015-04-20 21:09 ` Thomas Gleixner
2015-04-20 5:57 ` Baolin Wang [this message]
2015-04-20 5:57 ` [PATCH 11/11] k_clock:Remove the 32bit methods with timespec type Baolin Wang
2015-04-20 8:42 ` Richard Cochran
2015-04-20 9:00 ` Baolin Wang
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