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ia64: Consolidate user vtime accounting 

Factorize the code that accounts user time into a
single function 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>
hifive-unleashed-5.1
Frederic Weisbecker 2012-09-08 18:00:02 +02:00
parent a7e1a9e3af
commit 5bf412cd76
1 changed files with 15 additions and 13 deletions
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28
arch/ia64/kernel/time.c
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@ -83,6 +83,18 @@ static struct clocksource *itc_clocksource;
extern cputime_t cycle_to_cputime(u64 cyc);
static void vtime_account_user(struct task_struct *tsk)
{
cputime_t delta_utime;
struct thread_info *ti = task_thread_info(tsk);
if (ti->ac_utime) {
delta_utime = cycle_to_cputime(ti->ac_utime);
account_user_time(tsk, delta_utime, delta_utime);
ti->ac_utime = 0;
}
}
/*
* Called from the context switch with interrupts disabled, to charge all
* accumulated times to the current process, and to prepare accounting on
@ -92,7 +104,7 @@ 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, delta_utime;
cputime_t delta_stime;
__u64 now;
now = ia64_get_itc();
@ -103,10 +115,7 @@ void vtime_task_switch(struct task_struct *prev)
else
account_idle_time(delta_stime);
if (pi->ac_utime) {
delta_utime = cycle_to_cputime(pi->ac_utime);
account_user_time(prev, delta_utime, delta_utime);
}
vtime_account_user(prev);
pi->ac_stamp = ni->ac_stamp = now;
ni->ac_stime = ni->ac_utime = 0;
@ -149,14 +158,7 @@ void vtime_account_idle(struct task_struct *tsk)
*/
void account_process_tick(struct task_struct *p, int user_tick)
{
struct thread_info *ti = task_thread_info(p);
cputime_t delta_utime;
if (ti->ac_utime) {
delta_utime = cycle_to_cputime(ti->ac_utime);
account_user_time(p, delta_utime, delta_utime);
ti->ac_utime = 0;
}
vtime_account_user(p);
}
#endif /* CONFIG_VIRT_CPU_ACCOUNTING */