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| author | Eric W. Biederman <ebiederm@xmission.com> | 2020-02-28 11:09:46 -0600 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-03-01 11:21:44 +0100 |
| commit | beb41d9cbe4179058634e05d60235b6155c7b6c6 (patch) | |
| tree | 916790d490bfe9ad70d131eea03b3672d61f0434 /kernel/time/posix-cpu-timers.c | |
| parent | 60f2ceaa8111d9ec51af87bde4a6809f2b3235e4 (diff) | |
| download | linux-beb41d9cbe4179058634e05d60235b6155c7b6c6.tar.bz2 | |
posix-cpu-timers: Pass the task into arm_timer()
The task has been already computed to take siglock before calling
arm_timer. So pass the benefit of that labor into arm_timer().
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/8736auvdt1.fsf@x220.int.ebiederm.org
Diffstat (limited to 'kernel/time/posix-cpu-timers.c')
| -rw-r--r-- | kernel/time/posix-cpu-timers.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c index 40c2d8396bb9..ef936c5a910b 100644 --- a/kernel/time/posix-cpu-timers.c +++ b/kernel/time/posix-cpu-timers.c @@ -482,12 +482,11 @@ void posix_cpu_timers_exit_group(struct task_struct *tsk) * Insert the timer on the appropriate list before any timers that * expire later. This must be called with the sighand lock held. */ -static void arm_timer(struct k_itimer *timer) +static void arm_timer(struct k_itimer *timer, struct task_struct *p) { int clkidx = CPUCLOCK_WHICH(timer->it_clock); struct cpu_timer *ctmr = &timer->it.cpu; u64 newexp = cpu_timer_getexpires(ctmr); - struct task_struct *p = ctmr->task; struct posix_cputimer_base *base; if (CPUCLOCK_PERTHREAD(timer->it_clock)) @@ -660,7 +659,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags, */ cpu_timer_setexpires(ctmr, new_expires); if (new_expires != 0 && val < new_expires) { - arm_timer(timer); + arm_timer(timer, p); } unlock_task_sighand(p, &flags); @@ -980,7 +979,7 @@ static void posix_cpu_timer_rearm(struct k_itimer *timer) /* * Now re-arm for the new expiry time. */ - arm_timer(timer); + arm_timer(timer, p); unlock_task_sighand(p, &flags); } |