From 47ea2de2d68b6c5319308b7de1980f463b7c125c Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Wed, 5 Mar 2014 15:49:55 +0100
Subject: [PATCH] block: Fix bs->request_alignment assertion for bs->sg=1
For sg backends, bs->request_alignment is meaningless and may be 0.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
---
block.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block.c b/block.c
index 38bbdf3083..f01b91cef1 100644
--- a/block.c
+++ b/block.c
@@ -935,7 +935,7 @@ static int bdrv_open_common(BlockDriverState *bs, BlockDriverState *file,
bdrv_refresh_limits(bs);
assert(bdrv_opt_mem_align(bs) != 0);
- assert(bs->request_alignment != 0);
+ assert((bs->request_alignment != 0) || bs->sg);
#ifndef _WIN32
if (bs->is_temporary) {
--
2.30.2