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| author | Anna-Maria Gleixner <anna-maria@linutronix.de> | 2017-12-21 11:41:34 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-01-16 02:35:45 +0100 |
| commit | 6de6250c759781daeadca784d0cc34ae73f3b502 (patch) | |
| tree | 6158b7e27760d1fd929cd6c6d9cc4ce8f3ea115b /kernel/time | |
| parent | 907777136f80d0cc0f714e5a389c4dfa9b4670ee (diff) | |
| download | linux-6de6250c759781daeadca784d0cc34ae73f3b502.tar.gz linux-6de6250c759781daeadca784d0cc34ae73f3b502.tar.bz2 linux-6de6250c759781daeadca784d0cc34ae73f3b502.zip | |
hrtimer: Fix hrtimer_start[_range_ns]() function descriptions
The hrtimer_start[_range_ns]() functions start a timer reliably on this CPU only
when HRTIMER_MODE_PINNED is set.
Furthermore the HRTIMER_MODE_PINNED mode is not considered when a hrtimer is initialized.
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/20171221104205.7269-6-anna-maria@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/hrtimer.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index f2de328bb8d5..fd08729de5d2 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -924,12 +924,12 @@ static inline ktime_t hrtimer_update_lowres(struct hrtimer *timer, ktime_t tim, } /** - * hrtimer_start_range_ns - (re)start an hrtimer on the current CPU + * 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: expiry mode: absolute (HRTIMER_MODE_ABS) or - * relative (HRTIMER_MODE_REL) + * @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) @@ -1107,7 +1107,8 @@ static void __hrtimer_init(struct hrtimer *timer, clockid_t clock_id, * hrtimer_init - initialize a timer to the given clock * @timer: the timer to be initialized * @clock_id: the clock to be used - * @mode: timer mode abs/rel + * @mode: timer mode: absolute (HRTIMER_MODE_ABS) or + * relative (HRTIMER_MODE_REL); pinned is not considered here! */ void hrtimer_init(struct hrtimer *timer, clockid_t clock_id, enum hrtimer_mode mode) |