From: Jens Axboe <jens.axboe@oracle.com>
Date: Wed, 25 Apr 2007 12:24:12 +0000 (+0200)
Subject: More iolog fixes
X-Git-Tag: fio-1.16.1~3
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=733ed597a79e118bc2480974a4dc4676f2edede1;ds=sidebyside

More iolog fixes

- Warn if nrfiles > 1, so that the user knows it's not supported
- Need to clear ipo on malloc, or ->file could be some random value.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/log.c b/log.c
index de3b759c..9669b4a7 100644
--- a/log.c
+++ b/log.c
@@ -140,6 +140,7 @@ static int init_iolog_read(struct thread_data *td)
 		}
 
 		ipo = malloc(sizeof(*ipo));
+		memset(ipo, 0, sizeof(*ipo));
 		INIT_LIST_HEAD(&ipo->list);
 		ipo->offset = offset;
 		ipo->len = bytes;
@@ -171,6 +172,11 @@ static int init_iolog_write(struct thread_data *td)
 {
 	FILE *f;
 
+	if (td->o.nr_files > 1) {
+		log_err("fio: write_iolog only works with 1 file currently\n");
+		return 1;
+	}
+
 	f = fopen(td->o.write_iolog_file, "w+");
 	if (!f) {
 		perror("fopen write iolog");