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Commit 9dc16f64 authored by Frederic Weisbecker's avatar Frederic Weisbecker
Browse files

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



To avoid code duplication.

Signed-off-by: default avatarFrederic 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>
parent 5bf412cd

arch/ia64/kernel/time.c

+3 −8
Original line number Diff line number Diff line
@@ -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;

}