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authorStanislaw Gruszka <sgruszka@redhat.com>2009-11-17 14:14:13 -0800
committerThomas Gleixner <tglx@linutronix.de>2009-11-18 12:36:05 +0100
commitba5ea951d0b5e5896180e21fe07f228d2b3b0e63 (patch)
treef636c31ec68aed0d1e758c8aa36c06e320945ad8 /kernel/posix-cpu-timers.c
parent8e1a928a2ed7e8d5cad97c8e985294b4caedd168 (diff)
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posix-cpu-timers: optimize and document timer_create callback
We have already new_timer initialized to all-zeros hence in function initializations are not needed. Document function expectation about new_timer argument as well. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Cc: johnstul@us.ibm.com Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/posix-cpu-timers.c')
-rw-r--r--kernel/posix-cpu-timers.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 5c9dc228747..438ff452351 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -384,7 +384,8 @@ int posix_cpu_clock_get(const clockid_t which_clock, struct timespec *tp)
/*
* Validate the clockid_t for a new CPU-clock timer, and initialize the timer.
- * This is called from sys_timer_create with the new timer already locked.
+ * This is called from sys_timer_create() and do_cpu_nanosleep() with the
+ * new timer already all-zeros initialized.
*/
int posix_cpu_timer_create(struct k_itimer *new_timer)
{
@@ -396,8 +397,6 @@ int posix_cpu_timer_create(struct k_itimer *new_timer)
return -EINVAL;
INIT_LIST_HEAD(&new_timer->it.cpu.entry);
- new_timer->it.cpu.incr.sched = 0;
- new_timer->it.cpu.expires.sched = 0;
read_lock(&tasklist_lock);
if (CPUCLOCK_PERTHREAD(new_timer->it_clock)) {