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authorThomas Gleixner <tglx@linutronix.de>2011-02-01 13:51:11 +0000
committerThomas Gleixner <tglx@linutronix.de>2011-02-02 15:28:13 +0100
commita5cd2880106cb2c79b3fe24f1c53dadba6a542a0 (patch)
treeaa0d44b790a38975ff4429e3de3564df92c7b15f /kernel/posix-timers.c
parentcc785ac22b17ed53e8ff5c1501e422be6d10be3c (diff)
posix-timers: Convert clock_nanosleep to clockid_to_kclock()
Use the new kclock decoding function in clock_nanosleep and cleanup all kclocks which use the default functions. 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: <20110201134418.034175556@linutronix.de>
Diffstat (limited to 'kernel/posix-timers.c')
-rw-r--r--kernel/posix-timers.c26
1 files changed, 7 insertions, 19 deletions
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 14b0a70ffb1..ee69b216d5c 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -216,12 +216,6 @@ static int no_timer_create(struct k_itimer *new_timer)
return -EOPNOTSUPP;
}
-static int no_nsleep(const clockid_t which_clock, int flags,
- struct timespec *tsave, struct timespec __user *rmtp)
-{
- return -EOPNOTSUPP;
-}
-
/*
* Return nonzero if we know a priori this clockid_t value is bogus.
*/
@@ -282,32 +276,31 @@ static __init int init_posix_timers(void)
{
struct k_clock clock_realtime = {
.clock_getres = hrtimer_get_res,
+ .nsleep = common_nsleep,
};
struct k_clock clock_monotonic = {
.clock_getres = hrtimer_get_res,
.clock_get = posix_ktime_get_ts,
.clock_set = do_posix_clock_nosettime,
+ .nsleep = common_nsleep,
};
struct k_clock clock_monotonic_raw = {
.clock_getres = hrtimer_get_res,
.clock_get = posix_get_monotonic_raw,
.clock_set = do_posix_clock_nosettime,
.timer_create = no_timer_create,
- .nsleep = no_nsleep,
};
struct k_clock clock_realtime_coarse = {
.clock_getres = posix_get_coarse_res,
.clock_get = posix_get_realtime_coarse,
.clock_set = do_posix_clock_nosettime,
.timer_create = no_timer_create,
- .nsleep = no_nsleep,
};
struct k_clock clock_monotonic_coarse = {
.clock_getres = posix_get_coarse_res,
.clock_get = posix_get_monotonic_coarse,
.clock_set = do_posix_clock_nosettime,
.timer_create = no_timer_create,
- .nsleep = no_nsleep,
};
register_posix_clock(CLOCK_REALTIME, &clock_realtime);
@@ -952,13 +945,6 @@ int do_posix_clock_nosettime(const clockid_t clockid, const struct timespec *tp)
}
EXPORT_SYMBOL_GPL(do_posix_clock_nosettime);
-int do_posix_clock_nonanosleep(const clockid_t clock, int flags,
- struct timespec *t, struct timespec __user *r)
-{
- return -ENANOSLEEP_NOTSUP;
-}
-EXPORT_SYMBOL_GPL(do_posix_clock_nonanosleep);
-
SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
const struct timespec __user *, tp)
{
@@ -1023,10 +1009,13 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags,
const struct timespec __user *, rqtp,
struct timespec __user *, rmtp)
{
+ struct k_clock *kc = clockid_to_kclock(which_clock);
struct timespec t;
- if (invalid_clockid(which_clock))
+ if (!kc)
return -EINVAL;
+ if (!kc->nsleep)
+ return -ENANOSLEEP_NOTSUP;
if (copy_from_user(&t, rqtp, sizeof (struct timespec)))
return -EFAULT;
@@ -1034,8 +1023,7 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags,
if (!timespec_valid(&t))
return -EINVAL;
- return CLOCK_DISPATCH(which_clock, nsleep,
- (which_clock, flags, &t, rmtp));
+ return kc->nsleep(which_clock, flags, &t, rmtp);
}
/*