diff --git a/scst/include/scst.h b/scst/include/scst.h
index cfe71067a..2caf1baa5 100644
--- a/scst/include/scst.h
+++ b/scst/include/scst.h
@@ -4752,6 +4752,18 @@ int scst_scsi_exec_async(struct scst_cmd *cmd, void *data,
 	void (*done)(void *data, char *sense, int result, int resid));
 #endif
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 37) && !defined(RHEL_MAJOR)
+/*
+ * See also patch "mm: add vzalloc() and vzalloc_node() helpers" (commit
+ * e1ca7788dec6773b1a2bce51b7141948f2b8bccf).
+ */
+static void *vzalloc(unsigned long size)
+{
+	return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO,
+			 PAGE_KERNEL);
+}
+#endif
+
 int scst_get_file_mode(const char *path);
 bool scst_parent_dir_exists(const char *path);
 
diff --git a/scst/src/dev_handlers/scst_vdisk.c b/scst/src/dev_handlers/scst_vdisk.c
index 56e1375a2..61c81657d 100644
--- a/scst/src/dev_handlers/scst_vdisk.c
+++ b/scst/src/dev_handlers/scst_vdisk.c
@@ -990,18 +990,6 @@ out_overflow:
 	goto out;
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 37) && !defined(RHEL_MAJOR)
-/*
- * See also patch "mm: add vzalloc() and vzalloc_node() helpers" (commit
- * e1ca7788dec6773b1a2bce51b7141948f2b8bccf).
- */
-static void *vzalloc(unsigned long size)
-{
-	return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO,
-			 PAGE_KERNEL);
-}
-#endif
-
 static int vdev_save_mode_pages(const struct scst_vdisk_dev *virt_dev)
 {
 	int res, rc, offs;