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Subject[tip:timers/core] hrtimer: Factor out __hrtimer_next_event_base()
Commit-ID:  ad38f596d8e4babc19be8b21a7a49debffb4a7f5
Gitweb: https://git.kernel.org/tip/ad38f596d8e4babc19be8b21a7a49debffb4a7f5
Author: Anna-Maria Gleixner <anna-maria@linutronix.de>
AuthorDate: Thu, 21 Dec 2017 11:41:53 +0100
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 16 Jan 2018 03:00:43 +0100

hrtimer: Factor out __hrtimer_next_event_base()

Preparatory patch for softirq based hrtimers to avoid code duplication.

No functional change.

Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: keescook@chromium.org
Link: http://lkml.kernel.org/r/20171221104205.7269-25-anna-maria@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
kernel/time/hrtimer.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 4142e6f..5d9b81d 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -458,13 +458,13 @@ __next_base(struct hrtimer_cpu_base *cpu_base, unsigned int *active)
#define for_each_active_base(base, cpu_base, active) \
while ((base = __next_base((cpu_base), &(active))))

-static ktime_t __hrtimer_get_next_event(struct hrtimer_cpu_base *cpu_base)
+static ktime_t __hrtimer_next_event_base(struct hrtimer_cpu_base *cpu_base,
+ unsigned int active,
+ ktime_t expires_next)
{
struct hrtimer_clock_base *base;
- unsigned int active = cpu_base->active_bases;
- ktime_t expires, expires_next = KTIME_MAX;
+ ktime_t expires;

- cpu_base->next_timer = NULL;
for_each_active_base(base, cpu_base, active) {
struct timerqueue_node *next;
struct hrtimer *timer;
@@ -487,6 +487,18 @@ static ktime_t __hrtimer_get_next_event(struct hrtimer_cpu_base *cpu_base)
return expires_next;
}

+static ktime_t __hrtimer_get_next_event(struct hrtimer_cpu_base *cpu_base)
+{
+ unsigned int active = cpu_base->active_bases;
+ ktime_t expires_next = KTIME_MAX;
+
+ cpu_base->next_timer = NULL;
+
+ expires_next = __hrtimer_next_event_base(cpu_base, active, expires_next);
+
+ return expires_next;
+}
+
static inline ktime_t hrtimer_update_base(struct hrtimer_cpu_base *base)
{
ktime_t *offs_real = &base->clock_base[HRTIMER_BASE_REALTIME].offset;
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