From 5613fda9a503cd6137b120298902a34a1386b2c1 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Tue, 31 Jan 2017 04:09:23 +0100 Subject: 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 Cc: Benjamin Herrenschmidt Cc: Fenghua Yu Cc: Heiko Carstens Cc: Linus Torvalds Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Rik van Riel Cc: Stanislaw Gruszka Cc: Thomas Gleixner Cc: Tony Luck Cc: Wanpeng Li Link: http://lkml.kernel.org/r/1485832191-26889-8-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar --- kernel/exit.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'kernel/exit.c') diff --git a/kernel/exit.c b/kernel/exit.c index 8f14b866f9f6..8e5e21338b3a 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -86,7 +86,7 @@ static void __exit_signal(struct task_struct *tsk) bool group_dead = thread_group_leader(tsk); struct sighand_struct *sighand; struct tty_struct *uninitialized_var(tty); - cputime_t utime, stime; + u64 utime, stime; sighand = rcu_dereference_check(tsk->sighand, lockdep_tasklist_lock_is_held()); @@ -1091,7 +1091,7 @@ static int wait_task_zombie(struct wait_opts *wo, struct task_struct *p) struct signal_struct *sig = p->signal; struct signal_struct *psig = current->signal; unsigned long maxrss; - cputime_t tgutime, tgstime; + u64 tgutime, tgstime; /* * The resource counters for the group leader are in its -- cgit