[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1313423549-27093-28-git-send-email-fweisbec@gmail.com>
Date: Mon, 15 Aug 2011 17:52:24 +0200
From: Frederic Weisbecker <fweisbec@...il.com>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Anton Blanchard <anton@....ibm.com>,
Avi Kivity <avi@...hat.com>, Ingo Molnar <mingo@...e.hu>,
Lai Jiangshan <laijs@...fujitsu.com>,
"Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
Paul Menage <menage@...gle.com>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Stephen Hemminger <shemminger@...tta.com>,
Thomas Gleixner <tglx@...utronix.de>,
Tim Pepper <lnxninja@...ux.vnet.ibm.com>
Subject: [PATCH 27/32] nohz/cpuset: Flush cputimes on procfs stat file read
When we read a process's procfs stat file, we need
to flush the cputimes of the tasks running in nohz
cpusets in case some childs in the thread group are
running there.
Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Anton Blanchard <anton@....ibm.com>
Cc: Avi Kivity <avi@...hat.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Lai Jiangshan <laijs@...fujitsu.com>
Cc: Paul E . McKenney <paulmck@...ux.vnet.ibm.com>
Cc: Paul Menage <menage@...gle.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Stephen Hemminger <shemminger@...tta.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Tim Pepper <lnxninja@...ux.vnet.ibm.com>
---
fs/proc/array.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 9b45ee8..20e1c75 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -397,6 +397,8 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
cutime = cstime = utime = stime = cputime_zero;
cgtime = gtime = cputime_zero;
+ /* For thread group times */
+ cpuset_nohz_flush_cputimes();
if (lock_task_sighand(task, &flags)) {
struct signal_struct *sig = task->signal;
--
1.7.5.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists