1 files changed, 38 insertions, 0 deletions

diff --git a/include/linux/mempool.h b/include/linux/mempool.h
index f2427d7394b0..9be484d11283 100644
--- a/include/linux/mempool.h
+++ b/include/linux/mempool.h
@@ -6,6 +6,8 @@
 
 #include <linux/wait.h>
 
+struct kmem_cache;
+
 typedef void * (mempool_alloc_t)(gfp_t gfp_mask, void *pool_data);
 typedef void (mempool_free_t)(void *element, void *pool_data);
 
@@ -37,5 +39,41 @@ extern void mempool_free(void *element, mempool_t *pool);
  */
 void *mempool_alloc_slab(gfp_t gfp_mask, void *pool_data);
 void mempool_free_slab(void *element, void *pool_data);
+static inline mempool_t *
+mempool_create_slab_pool(int min_nr, struct kmem_cache *kc)
+{
+        return mempool_create(min_nr, mempool_alloc_slab, mempool_free_slab,
+                              (void *) kc);
+}
+
+/*
+ * 2 mempool_alloc_t's and a mempool_free_t to kmalloc/kzalloc and kfree
+ * the amount of memory specified by pool_data
+ */
+void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data);
+void *mempool_kzalloc(gfp_t gfp_mask, void *pool_data);
+void mempool_kfree(void *element, void *pool_data);
+static inline mempool_t *mempool_create_kmalloc_pool(int min_nr, size_t size)
+{
+        return mempool_create(min_nr, mempool_kmalloc, mempool_kfree,
+                              (void *) size);
+}
+static inline mempool_t *mempool_create_kzalloc_pool(int min_nr, size_t size)
+{
+        return mempool_create(min_nr, mempool_kzalloc, mempool_kfree,
+                              (void *) size);
+}
+
+/*
+ * A mempool_alloc_t and mempool_free_t for a simple page allocator that
+ * allocates pages of the order specified by pool_data
+ */
+void *mempool_alloc_pages(gfp_t gfp_mask, void *pool_data);
+void mempool_free_pages(void *element, void *pool_data);
+static inline mempool_t *mempool_create_page_pool(int min_nr, int order)
+{
+        return mempool_create(min_nr, mempool_alloc_pages, mempool_free_pages,
+                              (void *)(long)order);
+}
 
 #endif /* _LINUX_MEMPOOL_H */