From: Jens Axboe <axboe@suse.de>
Date: Fri, 4 Nov 2005 09:41:36 +0000 (+0100)
Subject: [PATCH] fio: Assume verify is ok for a hole
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=2356490bfa5b4b877c750eff173228c002bb7baf;p=disktools.git

[PATCH] fio: Assume verify is ok for a hole
---

diff --git a/fio.c b/fio.c
index 9d886f2..c147ea7 100644
--- a/fio.c
+++ b/fio.c
@@ -602,8 +602,16 @@ static int verify_io_u(struct thread_data *td, struct io_u *io_u)
 	unsigned char *p = (unsigned char *) io_u->buf;
 	struct md5_ctx md5_ctx;
 
-	if (hdr->fio_magic != FIO_HDR_MAGIC)
+	/*
+	 * assume this is a file hole, if we have been doing random writes
+	 * and magic is zero
+	 */
+	if (hdr->fio_magic != FIO_HDR_MAGIC) {
+		if (!td->sequential && !hdr->fio_magic)
+			return 0;
+
 		return 1;
+	}
 
 	memset(&md5_ctx, 0, sizeof(md5_ctx));
 	p += sizeof(*hdr);