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clockevents: Make suspend/resume calls explicit

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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 suspend/resume() calls and invoke
them directly from the call sites.

No locking required at this point because these calls happen
with interrupts disabled and a single cpu online.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[ Rebased on top of 4.0-rc5. ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/713674030.jVm1qaHuPf@vostro.rjw.lan
[ Rebased on top of latest timers/core. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Thomas Gleixner 2015-03-25 13:09:16 +01:00 • committed by Ingo Molnar
parent db6f672ef1
commit 4ffee521f3
7 changed files with 34 additions and 26 deletions
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3
include/linux/tick.h
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@ -29,10 +29,13 @@ extern struct tick_device *tick_get_device(int cpu);
extern void __init tick_init(void);
extern void tick_freeze(void);
extern void tick_unfreeze(void);
/* Should be core only, but XEN resume magic abuses this interface */
extern void tick_resume(void);
#else /* CONFIG_GENERIC_CLOCKEVENTS */
static inline void tick_init(void) { }
static inline void tick_freeze(void) { }
static inline void tick_unfreeze(void) { }
static inline void tick_resume(void) { }
#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
#ifdef CONFIG_TICK_ONESHOT