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authorThomas Gleixner <tglx@linutronix.de>2011-05-20 15:05:15 +0400
committerThomas Gleixner <tglx@linutronix.de>2011-05-23 15:59:54 +0400
commitab8177bc53e8ae3a3ba6d200ce2c2dae263f7ee5 (patch)
treec8b370496497b4f96d6a17da906bdd9314e9a090 /include/linux
parentf24444b01bf6c51c300fd3ffc73423383d747882 (diff)
downloadlinux-ab8177bc53e8ae3a3ba6d200ce2c2dae263f7ee5.tar.xz
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>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/hrtimer.h7
-rw-r--r--include/linux/thread_info.h2
2 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index cc5f5f51db10..771c95802edc 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -143,7 +143,8 @@ struct hrtimer_sleeper {
*/
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 @@ enum hrtimer_base_type {
* 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 @@ enum hrtimer_base_type {
* @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;
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index 20fc303947d3..8d03f079688c 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -29,7 +29,7 @@ struct restart_block {
} futex;
/* For nanosleep */
struct {
- clockid_t index;
+ clockid_t clockid;
struct timespec __user *rmtp;
#ifdef CONFIG_COMPAT
struct compat_timespec __user *compat_rmtp;