From 5a306ebf3338fe54a3153f6de4383ca2e4d2a209 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Mon, 28 Apr 2008 02:14:27 -0700
Subject: [PATCH] --- yaml --- r: 94108 b: refs/heads/master c:
 99602572812442d47403d85f376ad51298dd82a6 h: refs/heads/master v: v3

---
 [refs]                     | 2 +-
 trunk/include/linux/list.h | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 16485c3861ba..0fe8916ee67e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3d8d996e0ca5b4093203d3f050b0f70b5c949ae8
+refs/heads/master: 99602572812442d47403d85f376ad51298dd82a6
diff --git a/trunk/include/linux/list.h b/trunk/include/linux/list.h
index dac16f99c701..b4a939b6b625 100644
--- a/trunk/include/linux/list.h
+++ b/trunk/include/linux/list.h
@@ -319,6 +319,15 @@ static inline int list_empty_careful(const struct list_head *head)
 	return (next == head) && (next == head->prev);
 }
 
+/**
+ * list_is_singular - tests whether a list has just one entry.
+ * @head: the list to test.
+ */
+static inline int list_is_singular(const struct list_head *head)
+{
+	return !list_empty(head) && (head->next == head->prev);
+}
+
 static inline void __list_splice(struct list_head *list,
 				 struct list_head *head)
 {