From: Jens Axboe <jens.axboe@oracle.com>
Date: Mon, 9 Oct 2006 14:11:45 +0000 (+0200)
Subject: [PATCH] Remember to check ioops version in loaded module
X-Git-Tag: fio-1.7~34
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=b902ceb53977a12062c615ab529ca0c3422e3cff

[PATCH] Remember to check ioops version in loaded module

It could be for an older version of fio, reject failed version.

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

diff --git a/ioengines.c b/ioengines.c
index 658b2eb5..17909636 100644
--- a/ioengines.c
+++ b/ioengines.c
@@ -46,6 +46,12 @@ struct ioengine_ops *load_ioengine(struct thread_data *td, char *name)
 		return NULL;
 	}
 
+	if (ops->version != FIO_IOOPS_VERSION) {
+		log_err("bad ioops version %d (want %d)\n", ops->version, FIO_IOOPS_VERSION);
+		dlclose(dlhandle);
+		return NULL;
+	}
+
 	ops->dlhandle = dlhandle;
 	return ops;
 }