list_lru: dynamically adjust node arrays

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

diff --git a/include/linux/list_lru.h b/include/linux/list_lru.h
index 4d02ad3badab51b8621b2dbffa61db76a02d6784..3ce541753c88bf02a4feead675ecaaa7b01f579b 100644 (file)
--- a/include/linux/list_lru.h
+++ b/include/linux/list_lru.h
@@ -27,20 +27,11 @@ struct list_lru_node {
 } ____cacheline_aligned_in_smp;
 
 struct list_lru {
-       /*
-        * Because we use a fixed-size array, this struct can be very big if
-        * MAX_NUMNODES is big. If this becomes a problem this is fixable by
-        * turning this into a pointer and dynamically allocating this to
-        * nr_node_ids. This quantity is firwmare-provided, and still would
-        * provide room for all nodes at the cost of a pointer lookup and an
-        * extra allocation. Because that allocation will most likely come from
-        * a different slab cache than the main structure holding this
-        * structure, we may very well fail.
-        */
-       struct list_lru_node    node[MAX_NUMNODES];
+       struct list_lru_node    *node;
        nodemask_t              active_nodes;
 };
 
+void list_lru_destroy(struct list_lru *lru);
 int list_lru_init(struct list_lru *lru);
 
 /**