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-rw-r--r--mm/mempool.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/mm/mempool.c b/mm/mempool.c
index f71893ed354..45c0112ca7b 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -289,3 +289,21 @@ void mempool_free_slab(void *element, void *pool_data)
kmem_cache_free(mem, element);
}
EXPORT_SYMBOL(mempool_free_slab);
+
+/*
+ * A simple mempool-backed page allocator that allocates pages
+ * of the order specified by pool_data.
+ */
+void *mempool_alloc_pages(gfp_t gfp_mask, void *pool_data)
+{
+ int order = (int)(long)pool_data;
+ return alloc_pages(gfp_mask, order);
+}
+EXPORT_SYMBOL(mempool_alloc_pages);
+
+void mempool_free_pages(void *element, void *pool_data)
+{
+ int order = (int)(long)pool_data;
+ __free_pages(element, order);
+}
+EXPORT_SYMBOL(mempool_free_pages);