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authorThomas Gleixner <tglx@linutronix.de>2015-04-03 02:38:05 +0200
committerIngo Molnar <mingo@kernel.org>2015-04-03 08:44:37 +0200
commita49b116dcb1265f238f3169507424257b0519069 (patch)
tree948a98d4adcc47a89d1148033c7c130619eb2b06 /include/linux/tick.h
parent52c063d1adbc16c76e70fffa20727fcd4e9343b3 (diff)
downloadop-kernel-dev-a49b116dcb1265f238f3169507424257b0519069.zip
op-kernel-dev-a49b116dcb1265f238f3169507424257b0519069.tar.gz
clockevents: Cleanup dead cpu explicitely
clockevents_notify() is a leftover from the early design of the clockevents facility. It's really not a notification mechanism, it's a multiplex call. We are way better off to have explicit calls instead of this monstrosity. Split out the cleanup function for a dead cpu and invoke it directly from the cpu down code. Make it conditional on CPU_HOTPLUG as well. Temporary change, will be refined in the future. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> [ Rebased, added clockevents_notify() removal ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1735025.raBZdQHM3m@vostro.rjw.lan Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/tick.h')
-rw-r--r--include/linux/tick.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 2c68fa3..f8492da5 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -20,6 +20,7 @@ extern void tick_suspend_local(void);
/* Should be core only, but XEN resume magic and ARM BL switcher require it */
extern void tick_resume_local(void);
extern void tick_handover_do_timer(void);
+extern void tick_cleanup_dead_cpu(int cpu);
#else /* CONFIG_GENERIC_CLOCKEVENTS */
static inline void tick_init(void) { }
static inline void tick_freeze(void) { }
@@ -27,6 +28,7 @@ static inline void tick_unfreeze(void) { }
static inline void tick_suspend_local(void) { }
static inline void tick_resume_local(void) { }
static inline void tick_handover_do_timer(void) { }
+static inline void tick_cleanup_dead_cpu(int cpu) { }
#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
#ifdef CONFIG_TICK_ONESHOT
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