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From: Jason Wang <jasowang@redhat.com>
To: qemu-devel@nongnu.org, mst@redhat.com
Subject: [Qemu-devel] [PATCH] vhost: Fix address calculation in vhost_dev_sync_region()
Date: Sat, 27 Nov 2010 22:05:07 +0800	[thread overview]
Message-ID: <20101127140506.16888.96397.stgit@dhcp-91-7.nay.redhat.com.englab.nay.redhat.com> (raw)

We still need advance address even we find there's no dirty pages in
current chunk.

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hw/vhost.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/hw/vhost.c b/hw/vhost.c
index 8586f66..6082da2 100644
--- a/hw/vhost.c
+++ b/hw/vhost.c
@@ -37,6 +37,7 @@ static void vhost_dev_sync_region(struct vhost_dev *dev,
         /* We first check with non-atomic: much cheaper,
          * and we expect non-dirty to be the common case. */
         if (!*from) {
+            addr += VHOST_LOG_CHUNK;
             continue;
         }
         /* Data must be read atomically. We don't really

             reply	other threads:[~2010-11-27 14:04 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-27 14:05 Jason Wang [this message]
2010-11-28  8:10 ` [Qemu-devel] Re: [PATCH] vhost: Fix address calculation in vhost_dev_sync_region() Michael S. Tsirkin

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