linux-kernel - [PATCH 2/2] cpuset: use cgroup_path() in proc_cpuset

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Date:	Fri, 21 Nov 2008 16:49:50 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Menage <menage@...gle.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Containers <containers@...ts.linux-foundation.org>
Subject: [PATCH 2/2] cpuset: use cgroup_path() in proc_cpuset_show()


use cgroup_path() instead of
task_subsys_state(tsk, cpuset_subsys_id)->cgroup

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
---
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 3e00526..e0e087e 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -2387,7 +2386,7 @@ static int proc_cpuset_show(struct seq_file *m, void *unused_v)
 	struct pid *pid;
 	struct task_struct *tsk;
 	char *buf;
-	struct cgroup_subsys_state *css;
+	struct cgroup *cgp;
 	int retval;
 
 	retval = -ENOMEM;
@@ -2403,8 +2402,8 @@ static int proc_cpuset_show(struct seq_file *m, void *unused_v)
 
 	retval = -EINVAL;
 	cgroup_lock();
-	css = task_subsys_state(tsk, cpuset_subsys_id);
-	retval = cgroup_path(css->cgroup, buf, PAGE_SIZE);
+	cgp = task_cgroup(tsk, cpuset_subsys_id);
+	retval = cgroup_path(cgp, buf, PAGE_SIZE);
 	if (retval < 0)
 		goto out_unlock;
 	seq_puts(m, buf);


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