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-rw-r--r--include/linux/list.h20
1 files changed, 17 insertions, 3 deletions
diff --git a/include/linux/list.h b/include/linux/list.h
index 969f6e92d08..8392884a297 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.