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| author | Frederic Weisbecker <frederic@kernel.org> | 2021-07-26 14:55:12 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2021-08-10 17:09:59 +0200 |
| commit | 5c8f23e6b73c13d9f7b52614783dcb9169883296 (patch) | |
| tree | 158ee03ad68f33e5237420160bd3a4153d754be0 /kernel/time | |
| parent | d9c1b2a1089f606404284b9f5b045a584d73382d (diff) | |
| download | linux-stable-5c8f23e6b73c13d9f7b52614783dcb9169883296.tar.gz linux-stable-5c8f23e6b73c13d9f7b52614783dcb9169883296.tar.bz2 linux-stable-5c8f23e6b73c13d9f7b52614783dcb9169883296.zip | |
posix-cpu-timers: Consolidate timer base accessor
Remove the ad-hoc timer base accessors and provide a consolidated one.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210726125513.271824-6-frederic@kernel.org
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/posix-cpu-timers.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c index 4fbbbc89ac4a..0d918117a3e0 100644 --- a/kernel/time/posix-cpu-timers.c +++ b/kernel/time/posix-cpu-timers.c @@ -407,6 +407,17 @@ static int posix_cpu_timer_create(struct k_itimer *new_timer) return 0; } +static struct posix_cputimer_base *timer_base(struct k_itimer *timer, + struct task_struct *tsk) +{ + int clkidx = CPUCLOCK_WHICH(timer->it_clock); + + if (CPUCLOCK_PERTHREAD(timer->it_clock)) + return tsk->posix_cputimers.bases + clkidx; + else + return tsk->signal->posix_cputimers.bases + clkidx; +} + /* * Dequeue the timer and reset the base if it was its earliest expiration. * It makes sure the next tick recalculates the base next expiration so we @@ -421,18 +432,11 @@ static void disarm_timer(struct k_itimer *timer, struct task_struct *p) { struct cpu_timer *ctmr = &timer->it.cpu; struct posix_cputimer_base *base; - int clkidx; if (!cpu_timer_dequeue(ctmr)) return; - clkidx = CPUCLOCK_WHICH(timer->it_clock); - - if (CPUCLOCK_PERTHREAD(timer->it_clock)) - base = p->posix_cputimers.bases + clkidx; - else - base = p->signal->posix_cputimers.bases + clkidx; - + base = timer_base(timer, p); if (cpu_timer_getexpires(ctmr) == base->nextevt) base->nextevt = 0; } @@ -531,15 +535,9 @@ void posix_cpu_timers_exit_group(struct task_struct *tsk) */ static void arm_timer(struct k_itimer *timer, struct task_struct *p) { - int clkidx = CPUCLOCK_WHICH(timer->it_clock); + struct posix_cputimer_base *base = timer_base(timer, p); struct cpu_timer *ctmr = &timer->it.cpu; u64 newexp = cpu_timer_getexpires(ctmr); - struct posix_cputimer_base *base; - - if (CPUCLOCK_PERTHREAD(timer->it_clock)) - base = p->posix_cputimers.bases + clkidx; - else - base = p->signal->posix_cputimers.bases + clkidx; if (!cpu_timer_enqueue(&base->tqhead, ctmr)) return; |