linux-kernel - [PATCH -tip 2/2] sched: Display autogroup names in /proc/sched

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Message-ID: <20110110051643.GD2772@in.ibm.com>
Date:	Mon, 10 Jan 2011 10:46:43 +0530
From:	Bharata B Rao <bharata@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	Mike Galbraith <efault@....de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>
Subject: [PATCH -tip 2/2] sched: Display autogroup names in /proc/sched_debug.

sched: Display autogroup names in /proc/sched_debug.

Add autogroup name to cfs_rq and tasks information in /proc/sched_debug.

Signed-off-by: Bharata B Rao <bharata@...ux.vnet.ibm.com>
---
 kernel/sched_debug.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -92,6 +92,14 @@ static void print_cfs_group_stats(struct
 #ifdef CONFIG_CGROUP_SCHED
 static char * task_group_path(struct task_group *tg)
 {
+#ifdef CONFIG_SCHED_AUTOGROUP
+	int enabled = ACCESS_ONCE(sysctl_sched_autogroup_enabled);
+
+	if (enabled && tg->autogroup) {
+		autogroup_path(tg, group_path, PATH_MAX);
+		return group_path;
+	}
+#endif
 	/*
 	 * May be NULL if the underlying cgroup isn't fully-created yet
 	 */
--
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