| From | Anna-Maria Gleixner <> | Subject | [PATCH v4 23/36] hrtimer: Split hrtimer_start_range_ns() | Date | Thu, 21 Dec 2017 11:41:52 +0100 |
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Preparatory patch for softirq based hrtimers to avoid code duplication. No functional change.
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> --- kernel/time/hrtimer.c | 44 ++++++++++++++++++++++++-------------------- 1 file changed, 24 insertions(+), 20 deletions(-)
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 1dda56baded7..c7e2768ed022 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -907,22 +907,11 @@ static inline ktime_t hrtimer_update_lowres(struct hrtimer *timer, ktime_t tim, return tim; } -/** - * hrtimer_start_range_ns - (re)start an hrtimer - * @timer: the timer to be added - * @tim: expiry time - * @delta_ns: "slack" range for the timer - * @mode: timer mode: absolute (HRTIMER_MODE_ABS) or - * relative (HRTIMER_MODE_REL), and pinned (HRTIMER_MODE_PINNED) - */ -void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, - u64 delta_ns, const enum hrtimer_mode mode) +static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, + u64 delta_ns, const enum hrtimer_mode mode, + struct hrtimer_clock_base *base) { - struct hrtimer_clock_base *base, *new_base; - unsigned long flags; - int leftmost; - - base = lock_hrtimer_base(timer, &flags); + struct hrtimer_clock_base *new_base; /* Remove an active timer from the queue: */ remove_hrtimer(timer, base, true); @@ -937,12 +926,27 @@ void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, /* Switch the timer base, if necessary: */ new_base = switch_hrtimer_base(timer, base, mode & HRTIMER_MODE_PINNED); - leftmost = enqueue_hrtimer(timer, new_base, mode); - if (!leftmost) - goto unlock; + return enqueue_hrtimer(timer, new_base, mode); +} +/** + * hrtimer_start_range_ns - (re)start an hrtimer + * @timer: the timer to be added + * @tim: expiry time + * @delta_ns: "slack" range for the timer + * @mode: timer mode: absolute (HRTIMER_MODE_ABS) or + * relative (HRTIMER_MODE_REL), and pinned (HRTIMER_MODE_PINNED) + */ +void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, + u64 delta_ns, const enum hrtimer_mode mode) +{ + struct hrtimer_clock_base *base; + unsigned long flags; + + base = lock_hrtimer_base(timer, &flags); + + if (__hrtimer_start_range_ns(timer, tim, delta_ns, mode, base)) + hrtimer_reprogram(timer); - hrtimer_reprogram(timer); -unlock: unlock_hrtimer_base(timer, &flags); } EXPORT_SYMBOL_GPL(hrtimer_start_range_ns); -- 2.11.0
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