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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Jason Wang <jasowang@redhat.com>
Cc: Si-Wei Liu <si-wei.liu@oracle.com>,
	lingshan.zhu@intel.com, joao.m.martins@oracle.com,
	boris.ostrovsky@oracle.com, linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	netdev@vger.kernel.org
Subject: Re: [PATCH v3 1/2] vhost-vdpa: fix vhost_vdpa_map() on error condition
Date: Sun, 11 Oct 2020 02:45:52 -0400	[thread overview]
Message-ID: <20201011024533-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <a780b2e2-d8ce-4c27-df6b-47523c356d02@redhat.com>

On Sat, Oct 10, 2020 at 09:48:42AM +0800, Jason Wang wrote:
> 
> On 2020/10/3 下午1:02, Si-Wei Liu wrote:
> > vhost_vdpa_map() should remove the iotlb entry just added
> > if the corresponding mapping fails to set up properly.
> > 
> > Fixes: 4c8cf31885f6 ("vhost: introduce vDPA-based backend")
> > Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
> > ---
> >   drivers/vhost/vdpa.c | 3 +++
> >   1 file changed, 3 insertions(+)
> > 
> > diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
> > index 796fe97..0f27919 100644
> > --- a/drivers/vhost/vdpa.c
> > +++ b/drivers/vhost/vdpa.c
> > @@ -565,6 +565,9 @@ static int vhost_vdpa_map(struct vhost_vdpa *v,
> >   			      perm_to_iommu_flags(perm));
> >   	}
> > +	if (r)
> > +		vhost_iotlb_del_range(dev->iotlb, iova, iova + size - 1);
> > +
> >   	return r;
> >   }
> 
> 
> Acked-by: Jason Wang <jasowang@redhat.com>

Linus already merged this, I can't add your ack, sorry!

-- 
MST


WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Jason Wang <jasowang@redhat.com>
Cc: boris.ostrovsky@oracle.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	Si-Wei Liu <si-wei.liu@oracle.com>,
	lingshan.zhu@intel.com
Subject: Re: [PATCH v3 1/2] vhost-vdpa: fix vhost_vdpa_map() on error condition
Date: Sun, 11 Oct 2020 02:45:52 -0400	[thread overview]
Message-ID: <20201011024533-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <a780b2e2-d8ce-4c27-df6b-47523c356d02@redhat.com>

On Sat, Oct 10, 2020 at 09:48:42AM +0800, Jason Wang wrote:
> 
> On 2020/10/3 下午1:02, Si-Wei Liu wrote:
> > vhost_vdpa_map() should remove the iotlb entry just added
> > if the corresponding mapping fails to set up properly.
> > 
> > Fixes: 4c8cf31885f6 ("vhost: introduce vDPA-based backend")
> > Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
> > ---
> >   drivers/vhost/vdpa.c | 3 +++
> >   1 file changed, 3 insertions(+)
> > 
> > diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
> > index 796fe97..0f27919 100644
> > --- a/drivers/vhost/vdpa.c
> > +++ b/drivers/vhost/vdpa.c
> > @@ -565,6 +565,9 @@ static int vhost_vdpa_map(struct vhost_vdpa *v,
> >   			      perm_to_iommu_flags(perm));
> >   	}
> > +	if (r)
> > +		vhost_iotlb_del_range(dev->iotlb, iova, iova + size - 1);
> > +
> >   	return r;
> >   }
> 
> 
> Acked-by: Jason Wang <jasowang@redhat.com>

Linus already merged this, I can't add your ack, sorry!

-- 
MST

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Virtualization@lists.linux-foundation.org
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  reply	other threads:[~2020-10-11  6:46 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-03  5:02 [PATCH v3 0/2] vhost-vdpa mapping error path fixes Si-Wei Liu
2020-10-03  5:02 ` Si-Wei Liu
2020-10-03  5:02 ` [PATCH v3 1/2] vhost-vdpa: fix vhost_vdpa_map() on error condition Si-Wei Liu
2020-10-03  5:02   ` Si-Wei Liu
2020-10-10  1:48   ` Jason Wang
2020-10-10  1:48     ` Jason Wang
2020-10-11  6:45     ` Michael S. Tsirkin [this message]
2020-10-11  6:45       ` Michael S. Tsirkin
2020-10-03  5:02 ` [PATCH v3 2/2] vhost-vdpa: fix page pinning leakage in error path Si-Wei Liu
2020-10-03  5:02   ` Si-Wei Liu
2020-10-10  2:27   ` Jason Wang
2020-10-10  2:27     ` Jason Wang
2020-10-13 23:42     ` si-wei liu
2020-10-13 23:42       ` si-wei liu
2020-10-14  6:52       ` Michael S. Tsirkin
2020-10-14  6:52         ` Michael S. Tsirkin
2020-10-14 11:41         ` Jason Wang
2020-10-14 11:41           ` Jason Wang
2020-10-15  6:15       ` Jason Wang
2020-10-15  6:15         ` Jason Wang
2020-10-15 13:11         ` Michael S. Tsirkin
2020-10-15 13:11           ` Michael S. Tsirkin
2020-10-15 20:17           ` si-wei liu
2020-10-15 20:17             ` si-wei liu
2020-10-29 21:53             ` Michael S. Tsirkin
2020-10-29 21:53               ` Michael S. Tsirkin
2020-10-29 23:22               ` si-wei liu
2020-10-29 23:22                 ` si-wei liu
2020-11-03  5:34               ` si-wei liu
2020-11-03  5:34                 ` si-wei liu

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