Commit e2787630 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

[hrtimer] Change resolution storage to ktime_t format

Change the storage format of the per base resolution to ktime_t to
make it easier accessible in the hrtimers code.

Change the resolution from (NSEC_PER_SEC/HZ) to TICK_NSEC as Roman
pointed out. TICK_NSEC is closer to the real resolution.
Signed-off-by: default avatarThomas Gleixner <>
parent 288867ec
......@@ -85,7 +85,7 @@ struct hrtimer_base {
spinlock_t lock;
struct rb_root active;
struct rb_node *first;
unsigned long resolution;
ktime_t resolution;
ktime_t (*get_time)(void);
struct hrtimer *curr_timer;
......@@ -272,8 +272,8 @@ static inline u64 ktime_to_ns(const ktime_t kt)
* idea of the (in)accuracy of timers. Timer values are rounded up to
* this resolution values.
#define KTIME_REALTIME_RES (ktime_t){ .tv64 = TICK_NSEC }
#define KTIME_MONOTONIC_RES (ktime_t){ .tv64 = TICK_NSEC }
/* Get the monotonic time in timespec format: */
extern void ktime_get_ts(struct timespec *ts);
......@@ -518,9 +518,8 @@ int hrtimer_get_res(const clockid_t which_clock, struct timespec *tp)
struct hrtimer_base *bases;
tp->tv_sec = 0;
bases = per_cpu(hrtimer_bases, raw_smp_processor_id());
tp->tv_nsec = bases[which_clock].resolution;
*tp = ktime_to_timespec(bases[which_clock].resolution);
return 0;
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