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posix-timers: Store rmtp into restart_block in sys_clock_nanosleep()

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... instead of doing that in every ->nsleep() instance

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20170607084241.28657-5-viro@ZenIV.linux.org.uk
This commit is contained in:
Al Viro 2017-06-07 09:42:30 +01:00 • committed by Thomas Gleixner
commit 99e6c0e6ec
1 changed files with 10 additions and 22 deletions
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8
kernel/time/alarmtimer.c
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@ -753,8 +753,7 @@ static long __sched alarm_timer_nsleep_restart(struct restart_block *restart)
* Handles clock_nanosleep calls against _ALARM clockids
*/
static int alarm_timer_nsleep(const clockid_t which_clock, int flags,
struct timespec64 *tsreq,
struct timespec __user *rmtp)
struct timespec64 *tsreq)
{
enum alarmtimer_type type = clock2alarm(which_clock);
struct restart_block *restart = &current->restart_block;
@ -762,11 +761,6 @@ static int alarm_timer_nsleep(const clockid_t which_clock, int flags,
ktime_t exp;
int ret = 0;
if (flags & TIMER_ABSTIME)
rmtp = NULL;
restart->nanosleep.rmtp = rmtp;
if (!alarmtimer_get_rtcdev())
return -ENOTSUPP;