1 files changed, 17 insertions, 3 deletions

diff --git a/include/linux/list.h b/include/linux/list.h
index 969f6e92d089..8392884a2977 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -206,6 +206,20 @@ static inline int list_empty_careful(const struct list_head *head)
 }
 
 /**
+ * list_rotate_left - rotate the list to the left
+ * @head: the head of the list
+ */
+static inline void list_rotate_left(struct list_head *head)
+{
+        struct list_head *first;
+
+        if (!list_empty(head)) {
+                first = head->next;
+                list_move_tail(first, head);
+        }
+}
+
+/**
  * list_is_singular - tests whether a list has just one entry.
  * @head: the list to test.
  */
@@ -484,7 +498,7 @@ static inline void list_splice_tail_init(struct list_head *list,
              pos = n, n = list_entry(n->member.next, typeof(*n), member))
 
 /**
- * list_for_each_entry_safe_continue
+ * list_for_each_entry_safe_continue - continue list iteration safe against removal
  * @pos:        the type * to use as a loop cursor.
  * @n:          another type * to use as temporary storage
  * @head:       the head for your list.
@@ -500,7 +514,7 @@ static inline void list_splice_tail_init(struct list_head *list,
              pos = n, n = list_entry(n->member.next, typeof(*n), member))
 
 /**
- * list_for_each_entry_safe_from
+ * list_for_each_entry_safe_from - iterate over list from current point safe against removal
  * @pos:        the type * to use as a loop cursor.
  * @n:          another type * to use as temporary storage
  * @head:       the head for your list.
@@ -515,7 +529,7 @@ static inline void list_splice_tail_init(struct list_head *list,
              pos = n, n = list_entry(n->member.next, typeof(*n), member))
 
 /**
- * list_for_each_entry_safe_reverse
+ * list_for_each_entry_safe_reverse - iterate backwards over list safe against removal
  * @pos:        the type * to use as a loop cursor.
  * @n:          another type * to use as temporary storage
  * @head:       the head for your list.