---
 mm/slub.c |   23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

Index: linux-2.6/mm/slub.c
===================================================================
--- linux-2.6.orig/mm/slub.c	2008-02-07 23:36:13.054981367 -0800
+++ linux-2.6/mm/slub.c	2008-02-07 23:36:14.379000835 -0800
@@ -179,14 +179,14 @@ static inline void ClearSlabDebug(struct
  * Mininum number of partial slabs. These will be left on the partial
  * lists even if they are empty. kmem_cache_shrink may reclaim them.
  */
-#define MIN_PARTIAL 5
+#define MIN_PARTIAL 20
 
 /*
  * Maximum number of desirable partial slabs.
  * The existence of more partial slabs makes kmem_cache_shrink
  * sort the partial list by the number of objects in the.
  */
-#define MAX_PARTIAL 10
+#define MAX_PARTIAL 40
 
 #define DEBUG_DEFAULT_FLAGS (SLAB_DEBUG_FREE | SLAB_RED_ZONE | \
 				SLAB_POISON | SLAB_STORE_USER)
@@ -246,6 +246,8 @@ struct track {
 
 enum track_item { TRACK_ALLOC, TRACK_FREE };
 
+static void add_partial(struct kmem_cache_node *n,
+				struct page *page, int tail);
 #if defined(CONFIG_SYSFS) && defined(CONFIG_SLUB_DEBUG)
 static int sysfs_slab_add(struct kmem_cache *);
 static int sysfs_slab_alias(struct kmem_cache *, const char *);
@@ -1121,6 +1123,7 @@ static struct page *new_slab(struct kmem
 
 	BUG_ON(flags & GFP_SLAB_BUG_MASK);
 
+redo:
 	page = allocate_slab(s,
 		flags & (GFP_RECLAIM_MASK | GFP_CONSTRAINT_MASK), node);
 	if (!page)
@@ -1152,6 +1155,10 @@ static struct page *new_slab(struct kmem
 
 	page->freelist = start;
 	page->inuse = 0;
+	if (n && n->nr_partial < MIN_PARTIAL) {
+		add_partial(n, page, 1);
+		goto redo;
+	}
 out:
 	return page;
 }
@@ -1245,11 +1252,9 @@ static void add_partial(struct kmem_cach
 	spin_unlock(&n->list_lock);
 }
 
-static void remove_partial(struct kmem_cache *s,
+static void remove_partial(struct kmem_cache_node *n,
 						struct page *page)
 {
-	struct kmem_cache_node *n = get_node(s, page_to_nid(page));
-
 	spin_lock(&n->list_lock);
 	list_del(&page->lru);
 	n->nr_partial--;
@@ -1737,7 +1742,13 @@ slab_empty:
 		/*
 		 * Slab still on the partial list.
 		 */
-		remove_partial(s, page);
+		struct kmem_cache_node *n = get_node(s, page_to_nid(page));
+
+		/* If we are low on partials then leave the partial page alone */
+		if (n->nr_partial < MIN_PARTIAL)
+			goto out_unlock;
+
+		remove_partial(n, page);
 		stat(c, FREE_REMOVE_PARTIAL);
 	}
 	slab_unlock(page);