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sched: move sched_clock before first use

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Move sched_clock() up to stop warning: weak declaration of `sched_clock'
after first use results in unspecified behavior (if -fno-unit-at-a-time).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Mike Travis <travis@sgi.com>
Cc: Ben Herrenschmidt <benh@kernel.crashing.org>
Cc: Linuxppc-dev@ozlabs.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Hugh Dickins 2008-07-25 19:45:00 +01:00 committed by Ingo Molnar
parent e26873bb10
commit 2c3d103ba9
1 changed files with 9 additions and 10 deletions
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19
kernel/sched_clock.c
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@ -32,6 +32,15 @@
#include <linux/ktime.h>
#include <linux/module.h>
/*
* Scheduler clock - returns current time in nanosec units.
* This is default implementation.
* Architectures and sub-architectures can override this.
*/
unsigned long long __attribute__((weak)) sched_clock(void)
{
return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ);
}
#ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
@ -321,16 +330,6 @@ EXPORT_SYMBOL_GPL(sched_clock_idle_wakeup_event);
#endif
/*
* Scheduler clock - returns current time in nanosec units.
* This is default implementation.
* Architectures and sub-architectures can override this.
*/
unsigned long long __attribute__((weak)) sched_clock(void)
{
return (unsigned long long)jiffies * (NSEC_PER_SEC / HZ);
}
unsigned long long cpu_clock(int cpu)
{
unsigned long long clock;