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posix-timers: Rename do_schedule_next_timer

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That function is a misnomer. Rename it with a proper prefix to
posixtimer_rearm().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/20170530211656.811362578@linutronix.de
This commit is contained in:
Thomas Gleixner 2017-05-30 23:15:46 +02:00
parent 3080294589
commit 96fe3b072f
4 changed files with 8 additions and 8 deletions
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2
include/linux/posix-timers.h
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@ -112,6 +112,6 @@ long clock_nanosleep_restart(struct restart_block *restart_block);
void update_rlimit_cpu(struct task_struct *task, unsigned long rlim_new);
void do_schedule_next_timer(struct siginfo *info);
void posixtimer_rearm(struct siginfo *info);
#endif

2
kernel/signal.c
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@ -630,7 +630,7 @@ int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
* about to disable them again anyway.
*/
spin_unlock(&tsk->sighand->siglock);
do_schedule_next_timer(info);
posixtimer_rearm(info);
spin_lock(&tsk->sighand->siglock);
}
#endif

2
kernel/time/posix-cpu-timers.c
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@ -981,7 +981,7 @@ static void check_process_timers(struct task_struct *tsk,
}
/*
* This is called from the signal code (via do_schedule_next_timer)
* This is called from the signal code (via posixtimer_rearm)
* when the last timer signal was delivered and we have to reload the timer.
*/
void posix_cpu_timer_schedule(struct k_itimer *timer)

10
kernel/time/posix-timers.c
View File

@ -305,7 +305,7 @@ static void schedule_next_timer(struct k_itimer *timr)
* To protect against the timer going away while the interrupt is queued,
* we require that the it_requeue_pending flag be set.
*/
void do_schedule_next_timer(struct siginfo *info)
void posixtimer_rearm(struct siginfo *info)
{
struct k_itimer *timr;
unsigned long flags;
@ -336,12 +336,12 @@ int posix_timer_event(struct k_itimer *timr, int si_private)
int shared, ret = -1;
/*
* FIXME: if ->sigq is queued we can race with
* dequeue_signal()->do_schedule_next_timer().
* dequeue_signal()->posixtimer_rearm().
*
* If dequeue_signal() sees the "right" value of
* si_sys_private it calls do_schedule_next_timer().
* si_sys_private it calls posixtimer_rearm().
* We re-queue ->sigq and drop ->it_lock().
* do_schedule_next_timer() locks the timer
* posixtimer_rearm() locks the timer
* and re-schedules it while ->sigq is pending.
* Not really bad, but not that we want.
*/
@ -701,7 +701,7 @@ SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
* accumulating overruns on the next timer. The overrun is frozen when
* the signal is delivered, either at the notify time (if the info block
* is not queued) or at the actual delivery time (as we are informed by
* the call back to do_schedule_next_timer(). So all we need to do is
* the call back to posixtimer_rearm(). So all we need to do is
* to pick up the frozen overrun.
*/
SYSCALL_DEFINE1(timer_getoverrun, timer_t, timer_id)