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authorFrederic Weisbecker <fweisbec@gmail.com>2017-01-31 04:09:23 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 09:13:49 +0100
commit5613fda9a503cd6137b120298902a34a1386b2c1 (patch)
tree5431dd50508a6cfa052a3b9966e58842b430804d /arch/powerpc/kernel/time.c
parenta1cecf2ba78e0a6de00ff99df34b662728535aa5 (diff)
sched/cputime: Convert task/group cputime to nsecs
Now that most cputime readers use the transition API which return the task cputime in old style cputime_t, we can safely store the cputime in nsecs. This will eventually make cputime statistics less opaque and more granular. Back and forth convertions between cputime_t and nsecs in order to deal with cputime_t random granularity won't be needed anymore. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Wanpeng Li <wanpeng.li@hotmail.com> Link: http://lkml.kernel.org/r/1485832191-26889-8-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/powerpc/kernel/time.c')
-rw-r--r--arch/powerpc/kernel/time.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 02e97305d22b..3cca82e065c9 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -396,7 +396,7 @@ void vtime_flush(struct task_struct *tsk)
account_user_time(tsk, acct->utime);
if (acct->utime_scaled)
- tsk->utimescaled += acct->utime_scaled;
+ tsk->utimescaled += cputime_to_nsecs(acct->utime_scaled);
if (acct->gtime)
account_guest_time(tsk, acct->gtime);
@@ -411,7 +411,7 @@ void vtime_flush(struct task_struct *tsk)
account_system_index_time(tsk, acct->stime, CPUTIME_SYSTEM);
if (acct->stime_scaled)
- tsk->stimescaled += acct->stime_scaled;
+ tsk->stimescaled += cputime_to_nsecs(acct->stime_scaled);
if (acct->hardirq_time)
account_system_index_time(tsk, acct->hardirq_time, CPUTIME_IRQ);