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>

1 files changed, 15 insertions, 13 deletions

diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 01cd43e491cd..351df5850309 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -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 */