From 5109f0ffd76667a9be3be5e0f556923b22eacc55 Mon Sep 17 00:00:00 2001
From: Michael Wang <wangyun@linux.vnet.ibm.com>
Date: Thu, 20 Sep 2012 08:51:04 +0800
Subject: [PATCH] --- yaml --- r: 338822 b: refs/heads/master c:
 878eda72e24d11e463a25b1dc7097a8d953f17cb h: refs/heads/master v: v3

---
 [refs]                       |  2 +-
 trunk/kernel/rcutree_trace.c | 31 +++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 9740a8c9ed0b..7d1f0ec7b039 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 374b928ee8061fdbb0b527fb3924080ba2437767
+refs/heads/master: 878eda72e24d11e463a25b1dc7097a8d953f17cb
diff --git a/trunk/kernel/rcutree_trace.c b/trunk/kernel/rcutree_trace.c
index 0dfe9b512f0f..a11522f62c71 100644
--- a/trunk/kernel/rcutree_trace.c
+++ b/trunk/kernel/rcutree_trace.c
@@ -174,6 +174,32 @@ static const struct file_operations rcudata_fops = {
 	.release = single_release,
 };
 
+static int new_show_rcudata(struct seq_file *m, void *v)
+{
+	print_one_rcu_data(m, (struct rcu_data *)v);
+	return 0;
+}
+
+static const struct seq_operations new_rcudate_op = {
+	.start = r_start,
+	.next  = r_next,
+	.stop  = r_stop,
+	.show  = new_show_rcudata,
+};
+
+static int new_rcudata_open(struct inode *inode, struct file *file)
+{
+	return r_open(inode, file, &new_rcudate_op);
+}
+
+static const struct file_operations new_rcudata_fops = {
+	.owner = THIS_MODULE,
+	.open = new_rcudata_open,
+	.read = seq_read,
+	.llseek = no_llseek,
+	.release = seq_release,
+};
+
 static void print_one_rcu_data_csv(struct seq_file *m, struct rcu_data *rdp)
 {
 	if (!rdp->beenonline)
@@ -488,6 +514,11 @@ static int __init rcutree_trace_init(void)
 		rspdir = debugfs_create_dir(rsp->name, rcudir);
 		if (!rspdir)
 			goto free_out;
+
+			retval = debugfs_create_file("rcudata", 0444,
+					rspdir, rsp, &new_rcudata_fops);
+			if (!retval)
+				goto free_out;
 	}
 
 	retval = debugfs_create_file("rcubarrier", 0444, rcudir,