[PATCH] list_is_last utility

Add another list utility function to check for last element in a list.

Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/linux/list.h b/include/linux/list.h
index 6b74adf5297f..65a5b5ceda49 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -265,6 +265,17 @@ static inline void list_move_tail(struct list_head *list,
 }
 
 /**
+ * list_is_last - tests whether @list is the last entry in list @head
+ * @list: the entry to test
+ * @head: the head of the list
+ */
+static inline int list_is_last(const struct list_head *list,
+                                const struct list_head *head)
+{
+        return list->next == head;
+}
+
+/**
  * list_empty - tests whether a list is empty
  * @head: the list to test.
  */