diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 68694da0d21d0566a61649339cb3a4f3a3bbc943..18f87b0def1266eac12bf798ed036b4aa8e8f4ce 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -19,7 +19,7 @@
 /*
  * Tunable constants
  */
-#define ENDIO_HOOK_POOL_SIZE 10240
+#define ENDIO_HOOK_POOL_SIZE 1024
 #define DEFERRED_SET_SIZE 64
 #define MAPPING_POOL_SIZE 1024
 #define PRISON_CELLS 1024