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authorThomas Gleixner <tglx@linutronix.de>2007-02-16 01:28:00 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-16 08:13:59 -0800
commitd316c57ff6bfad9557462b9100f25c6260d2b774 (patch)
treef77a04aab5c39c416f52ff5ac9396da5a6b93759 /kernel/hrtimer.c
parente05d723f98595b2f4d368f63636a997d98703304 (diff)
downloadop-kernel-dev-d316c57ff6bfad9557462b9100f25c6260d2b774.zip
op-kernel-dev-d316c57ff6bfad9557462b9100f25c6260d2b774.tar.gz
[PATCH] clockevents: add core functionality
Architectures register their clock event devices, in the clock events core. Users of the clockevents core can get clock event devices for their use. The clockevents core code provides notification mechanisms for various clock related management events. This allows to control the clock event devices without the architectures having to worry about the details of function assignment. This is also a preliminary for high resolution timers and dynamic ticks to allow the core code to control the clock functionality without intrusive changes to the architecture code. [Fixes-by: Ingo Molnar <mingo@elte.hu>] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: john stultz <johnstul@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/hrtimer.c')
-rw-r--r--kernel/hrtimer.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index eca0f55..a2310d1 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -46,7 +46,7 @@
*
* returns the time in ktime_t format
*/
-static ktime_t ktime_get(void)
+ktime_t ktime_get(void)
{
struct timespec now;
@@ -60,7 +60,7 @@ static ktime_t ktime_get(void)
*
* returns the time in ktime_t format
*/
-static ktime_t ktime_get_real(void)
+ktime_t ktime_get_real(void)
{
struct timespec now;
@@ -311,14 +311,6 @@ static unsigned long ktime_divns(const ktime_t kt, s64 div)
#endif /* BITS_PER_LONG >= 64 */
/*
- * Timekeeping resumed notification
- */
-void hrtimer_notify_resume(void)
-{
- clock_was_set();
-}
-
-/*
* Counterpart to lock_timer_base above:
*/
static inline
@@ -889,6 +881,7 @@ static int __cpuinit hrtimer_cpu_notify(struct notifier_block *self,
#ifdef CONFIG_HOTPLUG_CPU
case CPU_DEAD:
+ clockevents_notify(CLOCK_EVT_NOTIFY_CPU_DEAD, &cpu);
migrate_hrtimers(cpu);
break;
#endif
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