From: "Michael S. Tsirkin" <mst@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [PATCH v2 0/2] virtio/vhost: fix alignment requirements
Date: Thu, 25 Dec 2014 17:05:48 +0200 [thread overview]
Message-ID: <20141225150548.GA12865@redhat.com> (raw)
In-Reply-To: <1419517332-12291-1-git-send-email-mst@redhat.com>
On Thu, Dec 25, 2014 at 05:05:01PM +0200, Michael S. Tsirkin wrote:
> vhost incorrectly asked for 8 byte alignment for
> used ring pointer, it should be 4 byte.
>
> Let's add explicit macros for ring element alignment,
> this makes it easier to make sure our requirements
> match the spec.
>
> Rusty, OK to merge this through my vhost tree, or do you
> prefer merging this through yours?
Just to clarify, this is needed in 3.19.
> Michael S. Tsirkin (2):
> virtio_ring: document alignment requirements
> vhost: relax used address alignment
>
> include/uapi/linux/virtio_ring.h | 7 +++++++
> drivers/vhost/vhost.c | 10 +++++++---
> 2 files changed, 14 insertions(+), 3 deletions(-)
>
> --
> MST
>
next prev parent reply other threads:[~2014-12-25 15:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-25 15:05 [PATCH v2 0/2] virtio/vhost: fix alignment requirements Michael S. Tsirkin
2014-12-25 15:05 ` [PATCH v2 1/2] virtio_ring: document " Michael S. Tsirkin
2014-12-25 15:05 ` [PATCH v2 2/2] vhost: relax used address alignment Michael S. Tsirkin
2014-12-25 15:05 ` Michael S. Tsirkin [this message]
2014-12-27 9:22 ` [PATCH v2 0/2] virtio/vhost: fix alignment requirements Rusty Russell
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