hrtimers: Avoid touching inactive timer bases
Instead of iterating over all possible timer bases avoid it by marking
the active bases in the cpu base.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Peter Zijlstra <peterz@infradead.org>
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index cc5f5f5..771c958 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -143,7 +143,8 @@
*/
struct hrtimer_clock_base {
struct hrtimer_cpu_base *cpu_base;
- clockid_t index;
+ int index;
+ clockid_t clockid;
struct timerqueue_head active;
ktime_t resolution;
ktime_t (*get_time)(void);
@@ -162,7 +163,7 @@
* struct hrtimer_cpu_base - the per cpu clock bases
* @lock: lock protecting the base and associated clock bases
* and timers
- * @clock_base: array of clock bases for this cpu
+ * @active_bases: Bitfield to mark bases with active timers
* @expires_next: absolute time of the next event which was scheduled
* via clock_set_next_event()
* @hres_active: State of high resolution mode
@@ -171,9 +172,11 @@
* @nr_retries: Total number of hrtimer interrupt retries
* @nr_hangs: Total number of hrtimer interrupt hangs
* @max_hang_time: Maximum time spent in hrtimer_interrupt
+ * @clock_base: array of clock bases for this cpu
*/
struct hrtimer_cpu_base {
raw_spinlock_t lock;
+ unsigned long active_bases;
#ifdef CONFIG_HIGH_RES_TIMERS
ktime_t expires_next;
int hres_active;