[PATCH] mempool: use common mempool kmalloc allocator

This patch changes several mempool users, all of which are basically just
wrappers around kmalloc(), to use the common mempool_kmalloc/kfree, rather
than their own wrapper function, removing a bunch of duplicated code.

Signed-off-by: Matthew Dobson <colpatch@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 12 deletions

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index e1c18aa1d712..f8ffaee20ff8 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -89,16 +89,6 @@ int bitmap_active(struct bitmap *bitmap)
 }
 
 #define WRITE_POOL_SIZE 256
-/* mempool for queueing pending writes on the bitmap file */
-static void *write_pool_alloc(gfp_t gfp_flags, void *data)
-{
-        return kmalloc(sizeof(struct page_list), gfp_flags);
-}
-
-static void write_pool_free(void *ptr, void *data)
-{
-        kfree(ptr);
-}
 
 /*
  * just a placeholder - calls kmalloc for bitmap pages
@@ -1564,8 +1554,8 @@ int bitmap_create(mddev_t *mddev)
         spin_lock_init(&bitmap->write_lock);
         INIT_LIST_HEAD(&bitmap->complete_pages);
         init_waitqueue_head(&bitmap->write_wait);
-        bitmap->write_pool = mempool_create(WRITE_POOL_SIZE, write_pool_alloc,
-                                write_pool_free, NULL);
+        bitmap->write_pool = mempool_create_kmalloc_pool(WRITE_POOL_SIZE,
+                                                sizeof(struct page_list));
         err = -ENOMEM;
         if (!bitmap->write_pool)
                 goto error;