clockevents: Provide explicit broadcast control functions
authorThomas Gleixner <tglx@linutronix.de>
Fri, 3 Apr 2015 00:01:10 +0000 (02:01 +0200)
committerIngo Molnar <mingo@kernel.org>
Fri, 3 Apr 2015 06:44:31 +0000 (08:44 +0200)
commit592a438ff3fea61d303c5784c209b3f1fd3e16df
tree8ce6cf8c2095a516e9226305649332bae70490a4
parent3ff70551a942b4c1d3c2e96e31a5c6e369a6d0be
clockevents: Provide explicit broadcast control functions

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 broadcast control into a separate function and
provide inline helpers. Switch clockevents_notify() over. This
will go away once all callers are converted.

This also gets rid of the nested locking of clockevents_lock and
broadcast_lock. The broadcast control functions do not require
clockevents_lock. Only the managing functions
(setup/shutdown/suspend/resume of the broadcast device require
clockevents_lock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tony Lindgren <tony@atomide.com>
Link: http://lkml.kernel.org/r/8086559.ttsuS0n1Xr@vostro.rjw.lan
Signed-off-by: Ingo Molnar <mingo@kernel.org>
include/linux/tick.h
kernel/time/clockevents.c
kernel/time/tick-broadcast.c
kernel/time/tick-internal.h