mm: keep page cache radix tree nodes in check

[cascardo/linux.git] / include / linux / list_lru.h

diff --git a/include/linux/list_lru.h b/include/linux/list_lru.h
index 3ce5417..f343453 100644 (file)
--- a/include/linux/list_lru.h
+++ b/include/linux/list_lru.h
@@ -13,6 +13,8 @@
 /* list_lru_walk_cb has to always return one of those */
 enum lru_status {
        LRU_REMOVED,            /* item removed from list */
+       LRU_REMOVED_RETRY,      /* item removed, but lock has been
+                                  dropped and reacquired */
        LRU_ROTATE,             /* item referenced, give another pass */
        LRU_SKIP,               /* item cannot be locked, skip */
        LRU_RETRY,              /* item not freeable. May drop the lock
@@ -32,7 +34,11 @@ struct list_lru {
 };
 
 void list_lru_destroy(struct list_lru *lru);
-int list_lru_init(struct list_lru *lru);
+int list_lru_init_key(struct list_lru *lru, struct lock_class_key *key);
+static inline int list_lru_init(struct list_lru *lru)
+{
+       return list_lru_init_key(lru, NULL);
+}
 
 /**
  * list_lru_add: add an element to the lru list's tail