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authorThomas Gleixner <tglx@linutronix.de>2011-02-01 13:51:53 +0000
committerThomas Gleixner <tglx@linutronix.de>2011-02-02 15:28:15 +0100
commite5e542eea9075dd008993c2ee80b2cc9f31fc494 (patch)
tree5e63edaec5a5e0ce34b479ccc70fa311610d2abc /kernel/posix-timers.c
parent4359ac0ace1a2a267927390ad27f781a2f8e0ab8 (diff)
downloadlinux-e5e542eea9075dd008993c2ee80b2cc9f31fc494.tar.gz
posix-timers: Convert clock_getres() to clockid_to_kclock()
Use the new kclock decoding. Fixup the fallout in mmtimer.c

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: <20110201134418.709802797@linutronix.de>
Diffstat (limited to 'kernel/posix-timers.c')
-rw-r--r--kernel/posix-timers.c17
1 files changed, 4 insertions, 13 deletions
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 7f66143d1ce5..748497fffd0f 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -182,14 +182,6 @@ static inline void unlock_timer(struct k_itimer *timr, unsigned long flags)
  * the function pointer CALL in struct k_clock.
  */
 
-static inline int common_clock_getres(const clockid_t which_clock,
-				      struct timespec *tp)
-{
-	tp->tv_sec = 0;
-	tp->tv_nsec = posix_clocks[which_clock].res;
-	return 0;
-}
-
 static int common_timer_create(struct k_itimer *new_timer)
 {
 	hrtimer_init(&new_timer->it.real.timer, new_timer->it_clock, 0);
@@ -984,18 +976,17 @@ SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock,
 SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock,
 		struct timespec __user *, tp)
 {
+	struct k_clock *kc = clockid_to_kclock(which_clock);
 	struct timespec rtn_tp;
 	int error;
 
-	if (invalid_clockid(which_clock))
+	if (!kc)
 		return -EINVAL;
 
-	error = CLOCK_DISPATCH(which_clock, clock_getres,
-			       (which_clock, &rtn_tp));
+	error = kc->clock_getres(which_clock, &rtn_tp);
 
-	if (!error && tp && copy_to_user(tp, &rtn_tp, sizeof (rtn_tp))) {
+	if (!error && tp && copy_to_user(tp, &rtn_tp, sizeof (rtn_tp)))
 		error = -EFAULT;
-	}
 
 	return error;
 }