[PATCH] Fix memswp. Its scratch space was too small

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/verify.c b/verify.c
index d9a68d6..6f67dff 100644
--- a/verify.c
+++ b/verify.c
@@ -83,7 +83,9 @@
 
 static void memswp(void* buf1, void* buf2, unsigned int len)
 {
-	struct verify_header swap;
+	char swap[200];
+
+	assert(len <= sizeof(swap));
 
 	memcpy(&swap, buf1, len);
 	memcpy(buf1, buf2, len);