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ia64: Reuse system and user vtime accounting functions on task switch 

To avoid code duplication.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
This commit is contained in:
Frederic Weisbecker 2012-09-08 18:07:29 +02:00
parent 5bf412cd76
commit 9dc16f64e8
1 changed files with 3 additions and 8 deletions
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11
arch/ia64/kernel/time.c
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@ -104,20 +104,15 @@ void vtime_task_switch(struct task_struct *prev)
{
struct thread_info *pi = task_thread_info(prev);
struct thread_info *ni = task_thread_info(current);
cputime_t delta_stime;
__u64 now;
now = ia64_get_itc();
delta_stime = cycle_to_cputime(pi->ac_stime + (now - pi->ac_stamp));
if (idle_task(smp_processor_id()) != prev)
account_system_time(prev, 0, delta_stime, delta_stime);
vtime_account_system(prev);
else
account_idle_time(delta_stime);
vtime_account_idle(prev);
vtime_account_user(prev);
pi->ac_stamp = ni->ac_stamp = now;
pi->ac_stamp = ni->ac_stamp;
ni->ac_stime = ni->ac_utime = 0;
}