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-rw-r--r--include/linux/timerqueue.h23
1 files changed, 16 insertions, 7 deletions
diff --git a/include/linux/timerqueue.h b/include/linux/timerqueue.h
index 78b8cc73f12f..93884086f392 100644
--- a/include/linux/timerqueue.h
+++ b/include/linux/timerqueue.h
@@ -12,8 +12,7 @@ struct timerqueue_node {
};
struct timerqueue_head {
- struct rb_root head;
- struct timerqueue_node *next;
+ struct rb_root_cached rb_root;
};
@@ -29,13 +28,14 @@ extern struct timerqueue_node *timerqueue_iterate_next(
*
* @head: head of timerqueue
*
- * Returns a pointer to the timer node that has the
- * earliest expiration time.
+ * Returns a pointer to the timer node that has the earliest expiration time.
*/
static inline
struct timerqueue_node *timerqueue_getnext(struct timerqueue_head *head)
{
- return head->next;
+ struct rb_node *leftmost = rb_first_cached(&head->rb_root);
+
+ return rb_entry(leftmost, struct timerqueue_node, node);
}
static inline void timerqueue_init(struct timerqueue_node *node)
@@ -43,9 +43,18 @@ static inline void timerqueue_init(struct timerqueue_node *node)
RB_CLEAR_NODE(&node->node);
}
+static inline bool timerqueue_node_queued(struct timerqueue_node *node)
+{
+ return !RB_EMPTY_NODE(&node->node);
+}
+
+static inline bool timerqueue_node_expires(struct timerqueue_node *node)
+{
+ return node->expires;
+}
+
static inline void timerqueue_init_head(struct timerqueue_head *head)
{
- head->head = RB_ROOT;
- head->next = NULL;
+ head->rb_root = RB_ROOT_CACHED;
}
#endif /* _LINUX_TIMERQUEUE_H */