linux-kernel - [PATCH] kernel/fork.c: define reset_task

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Message-Id: <1235625475-21218-1-git-send-email-gustavo@las.ic.unicamp.br>
Date:	Thu, 26 Feb 2009 02:17:55 -0300
From:	"Gustavo F. Padovan" <gustavo@....ic.unicamp.br>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] kernel/fork.c: define reset_task_cputimes()

Group all vars that receive cputime_zero in the same static function.
This also cleans the code.

Signed-off-by: Gustavo F. Padovan <gustavo@....ic.unicamp.br>
---
 include/linux/sched.h |   11 +++++++++++
 kernel/fork.c         |    8 +-------
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8981e52..1a64587 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1595,6 +1595,17 @@ extern cputime_t task_utime(struct task_struct *p);
 extern cputime_t task_stime(struct task_struct *p);
 extern cputime_t task_gtime(struct task_struct *p);
 
+static inline void reset_task_cputimes(struct task_struct *t)
+{
+	t->utime = cputime_zero;
+	t->stime = cputime_zero;
+	t->gtime = cputime_zero;
+	t->utimescaled = cputime_zero;
+	t->stimescaled = cputime_zero;
+	t->prev_utime = cputime_zero;
+	t->prev_stime = cputime_zero;
+}
+
 /*
  * Per process flags
  */
diff --git a/kernel/fork.c b/kernel/fork.c
index a66fbde..9856abe 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1031,13 +1031,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	clear_tsk_thread_flag(p, TIF_SIGPENDING);
 	init_sigpending(&p->pending);
 
-	p->utime = cputime_zero;
-	p->stime = cputime_zero;
-	p->gtime = cputime_zero;
-	p->utimescaled = cputime_zero;
-	p->stimescaled = cputime_zero;
-	p->prev_utime = cputime_zero;
-	p->prev_stime = cputime_zero;
+	reset_task_cputimes(p);
 
 	p->default_timer_slack_ns = current->timer_slack_ns;
 
-- 
1.6.0.6

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