linux-kernel - [GIT PULL] cputime patch for 2.6.30-rc6

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Message-ID: <20090518160904.7df88425@skybase>
Date:	Mon, 18 May 2009 16:09:04 +0200
From:	Martin Schwidefsky <schwidefsky@...ibm.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Michael Abbott <michael@...neidae.co.uk>,
	Jan Engelhardt <jengelh@...ozas.de>
Subject: [GIT PULL] cputime patch for 2.6.30-rc6

Hi Linus,

please pull from 'cputime' branch of

	git://git390.marist.edu/pub/scm/linux-2.6.git cputime

to receive the following updates:

Michael Abbott (1):
      Fix idle time field in /proc/uptime

 fs/proc/uptime.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c
index 0c10a0b..c0ac0d7 100644
--- a/fs/proc/uptime.c
+++ b/fs/proc/uptime.c
@@ -4,13 +4,19 @@
 #include <linux/sched.h>
 #include <linux/seq_file.h>
 #include <linux/time.h>
+#include <linux/kernel_stat.h>
 #include <asm/cputime.h>
 
 static int uptime_proc_show(struct seq_file *m, void *v)
 {
 	struct timespec uptime;
 	struct timespec idle;
-	cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
+	int len, i;
+	cputime_t idletime = 0;
+
+	for_each_possible_cpu(i)
+		idletime = cputime64_add(idletime, kstat_cpu(i).cpustat.idle);
+	idletime = cputime64_to_clock_t(idletime);
 
 	do_posix_clock_monotonic_gettime(&uptime);
 	monotonic_to_bootbased(&uptime);
--
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