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Subject[tip:timers/core] posix-timers: Convert timer_delete() to clockid_to_kclock()
Commit-ID:  6761c6702e2c647582e1829abe8cf90794f61d9d
Gitweb: http://git.kernel.org/tip/6761c6702e2c647582e1829abe8cf90794f61d9d
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Tue, 1 Feb 2011 13:52:07 +0000
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Wed, 2 Feb 2011 15:28:17 +0100
posix-timers: Convert timer_delete() to clockid_to_kclock()

Set the common function for CLOCK_MONOTONIC and CLOCK_REALTIME kclocks
and use the new decoding function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <johnstul@us.ibm.com>
Tested-by: Richard Cochran <richard.cochran@omicron.at>
LKML-Reference: <20110201134419.198999420@linutronix.de>
---
kernel/posix-timers.c | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index c1e2636..ade7dec 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -254,6 +254,7 @@ static __init int init_posix_timers(void)
.timer_create = common_timer_create,
.timer_set = common_timer_set,
.timer_get = common_timer_get,
+ .timer_del = common_timer_del,
};
struct k_clock clock_monotonic = {
.clock_getres = hrtimer_get_res,
@@ -263,6 +264,7 @@ static __init int init_posix_timers(void)
.timer_create = common_timer_create,
.timer_set = common_timer_set,
.timer_get = common_timer_get,
+ .timer_del = common_timer_del,
};
struct k_clock clock_monotonic_raw = {
.clock_getres = hrtimer_get_res,
@@ -859,7 +861,7 @@ retry:
return error;
}

-static inline int common_timer_del(struct k_itimer *timer)
+static int common_timer_del(struct k_itimer *timer)
{
timer->it.real.interval.tv64 = 0;

@@ -870,7 +872,11 @@ static inline int common_timer_del(struct k_itimer *timer)

static inline int timer_delete_hook(struct k_itimer *timer)
{
- return CLOCK_DISPATCH(timer->it_clock, timer_del, (timer));
+ struct k_clock *kc = clockid_to_kclock(timer->it_clock);
+
+ if (WARN_ON_ONCE(!kc || !kc->timer_del))
+ return -EINVAL;
+ return kc->timer_del(timer);
}

/* Delete a POSIX.1b interval timer. */

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