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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2014-06-22 01:29:17 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2014-06-23 11:23:47 +0200 |
| commit | 9e1e01dd79ac4cf936623399abe57dfba4528ae6 (patch) | |
| tree | b407bd9cf2801df74b78e40e618bcc3037bba704 | |
| parent | 49a2a07514a3a2ea4a02482fa60575e106d960f9 (diff) | |
| download | blackbird-op-linux-9e1e01dd79ac4cf936623399abe57dfba4528ae6.tar.gz blackbird-op-linux-9e1e01dd79ac4cf936623399abe57dfba4528ae6.zip | |
hrtimer: Remove hrtimer_enqueue_reprogram()
We call hrtimer_enqueue_reprogram() only when we are in high resolution
mode now so we don't need to check that again in hrtimer_enqueue_reprogram().
Once the check is removed, hrtimer_enqueue_reprogram() turns to be an
useless wrapper over hrtimer_reprogram() and can be dropped.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1403393357-2070-6-git-send-email-fweisbec@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | kernel/time/hrtimer.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index f9007478fcce..66a6dc1075ad 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -602,6 +602,11 @@ hrtimer_force_reprogram(struct hrtimer_cpu_base *cpu_base, int skip_equal) * timers, we have to check, whether it expires earlier than the timer for * which the clock event device was armed. * + * Note, that in case the state has HRTIMER_STATE_CALLBACK set, no reprogramming + * and no expiry check happens. The timer gets enqueued into the rbtree. The + * reprogramming and expiry check is done in the hrtimer_interrupt or in the + * softirq. + * * Called with interrupts disabled and base->cpu_base.lock held */ static int hrtimer_reprogram(struct hrtimer *timer, @@ -662,18 +667,6 @@ static inline void hrtimer_init_hres(struct hrtimer_cpu_base *base) base->hres_active = 0; } -/* - * When High resolution timers are active, try to reprogram. Note, that in case - * the state has HRTIMER_STATE_CALLBACK set, no reprogramming and no expiry - * check happens. The timer gets enqueued into the rbtree. The reprogramming - * and expiry check is done in the hrtimer_interrupt or in the softirq. - */ -static inline int hrtimer_enqueue_reprogram(struct hrtimer *timer, - struct hrtimer_clock_base *base) -{ - return base->cpu_base->hres_active && hrtimer_reprogram(timer, base); -} - static inline ktime_t hrtimer_update_base(struct hrtimer_cpu_base *base) { ktime_t *offs_real = &base->clock_base[HRTIMER_BASE_REALTIME].offset; @@ -755,8 +748,8 @@ static inline int hrtimer_is_hres_enabled(void) { return 0; } static inline int hrtimer_switch_to_hres(void) { return 0; } static inline void hrtimer_force_reprogram(struct hrtimer_cpu_base *base, int skip_equal) { } -static inline int hrtimer_enqueue_reprogram(struct hrtimer *timer, - struct hrtimer_clock_base *base) +static inline int hrtimer_reprogram(struct hrtimer *timer, + struct hrtimer_clock_base *base) { return 0; } @@ -1025,7 +1018,7 @@ int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, */ wake_up_nohz_cpu(new_base->cpu_base->cpu); } else if (new_base->cpu_base == &__get_cpu_var(hrtimer_bases) && - hrtimer_enqueue_reprogram(timer, new_base)) { + hrtimer_reprogram(timer, new_base)) { /* * Only allow reprogramming if the new base is on this CPU. * (it might still be on another CPU if the timer was pending) |
