[PATCH v3 10/22] posix-timers:Split out the guts of the syscall and change the implementation for clock_gettime

[PATCH v3 10/22] posix-timers:Split out the guts of the syscall and change the implementation for clock_gettime

[Baolin Wang]

This patch splits out the guts of the clock_gettime syscall and changes the
clock_gettime syscall implementation to prepare the converting to 64bit methods
for the clock_gettime syscall function in posix-timers.c file

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
 kernel/time/posix-timers.c |   16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 0fe8a65..8aac06d 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -1115,17 +1115,23 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
 #endif
 }
 
-SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock,
-		struct timespec __user *,tp)
+static int __clock_gettime(clockid_t which_clock, struct timespec *ts)
 {
 	struct k_clock *kc = clockid_to_kclock(which_clock);
-	struct timespec kernel_tp;
-	int error;
 
 	if (!kc)
 		return -EINVAL;
 
-	error = kc->clock_get(which_clock, &kernel_tp);
+	return kc->clock_get(which_clock, ts);
+}
+
+SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock,
+		struct timespec __user *,tp)
+{
+	struct timespec kernel_tp;
+	int error;
+
+	error = __clock_gettime(which_clock, &kernel_tp);
 
 	if (!error && copy_to_user(tp, &kernel_tp, sizeof (kernel_tp)))
 		error = -EFAULT;
-- 
1.7.9.5