AcoSail/kernel_optimize_test
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hrtimer: clean up unused callback modes

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Impact: cleanup

git grep HRTIMER_CB_IRQSAFE revealed half the callback modes are actually
unused.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2008-11-12 09:36:35 +01:00 committed by Ingo Molnar
parent f21f237cf5
commit 621a0d5207
2 changed files with 0 additions and 14 deletions
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5
include/linux/hrtimer.h
View File

@ -46,9 +46,6 @@ enum hrtimer_restart {
* hrtimer callback modes:
*
* HRTIMER_CB_SOFTIRQ: Callback must run in softirq context
* HRTIMER_CB_IRQSAFE: Callback may run in hardirq context
* HRTIMER_CB_IRQSAFE_NO_RESTART: Callback may run in hardirq context and
* does not restart the timer
* HRTIMER_CB_IRQSAFE_PERCPU: Callback must run in hardirq context
* Special mode for tick emulation and
* scheduler timer. Such timers are per
@ -61,8 +58,6 @@ enum hrtimer_restart {
*/
enum hrtimer_cb_mode {
HRTIMER_CB_SOFTIRQ,
HRTIMER_CB_IRQSAFE,
HRTIMER_CB_IRQSAFE_NO_RESTART,
HRTIMER_CB_IRQSAFE_PERCPU,
HRTIMER_CB_IRQSAFE_UNLOCKED,
};

9
kernel/hrtimer.c
View File

@ -664,14 +664,6 @@ static inline int hrtimer_enqueue_reprogram(struct hrtimer *timer,
/* Timer is expired, act upon the callback mode */
switch(timer->cb_mode) {
case HRTIMER_CB_IRQSAFE_NO_RESTART:
debug_hrtimer_deactivate(timer);
/*
* We can call the callback from here. No restart
* happens, so no danger of recursion
*/
BUG_ON(timer->function(timer) != HRTIMER_NORESTART);
return 1;
case HRTIMER_CB_IRQSAFE_PERCPU:
case HRTIMER_CB_IRQSAFE_UNLOCKED:
/*
@ -683,7 +675,6 @@ static inline int hrtimer_enqueue_reprogram(struct hrtimer *timer,
*/
debug_hrtimer_deactivate(timer);
return 1;
case HRTIMER_CB_IRQSAFE:
case HRTIMER_CB_SOFTIRQ:
/*
* Move everything else into the softirq pending list !