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From: Liu Yuan <namei.unix@gmail.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
	Rusty Russell <rusty@rustcorp.com.au>,
	Avi Kivity <avi@redhat.com>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] vhost-blk: An in-kernel accelerator for virtio-blk
Date: Fri, 29 Jul 2011 19:19:39 +0800	[thread overview]
Message-ID: <4E32974B.6060605@gmail.com> (raw)
In-Reply-To: <20110728144740.GA26744@infradead.org>

On 07/28/2011 10:47 PM, Christoph Hellwig wrote:
> On Thu, Jul 28, 2011 at 10:29:05PM +0800, Liu Yuan wrote:
>> From: Liu Yuan<tailai.ly@taobao.com>
>>
>> Vhost-blk driver is an in-kernel accelerator, intercepting the
>> IO requests from KVM virtio-capable guests. It is based on the
>> vhost infrastructure.
>>
>> This is supposed to be a module over latest kernel tree, but it
>> needs some symbols from fs/aio.c and fs/eventfd.c to compile with.
>> So currently, after applying the patch, you need to *recomplie*
>> the kernel.
>>
>> Usage:
>> $kernel-src: make M=drivers/vhost
>> $kernel-src: sudo insmod drivers/vhost/vhost_blk.ko
>>
>> After insmod, you'll see /dev/vhost-blk created. done!
> You'll need to send the changes for existing code separately.
>
Thanks for reminding.

> If you're going mostly for raw blockdevice access just calling
> submit_bio will shave even more overhead off, and simplify the
> code a lot.
Yes, sounds cool, I'll give it a try.

Yuan

  reply	other threads:[~2011-07-29 11:19 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-28 14:29 [RFC PATCH]vhost-blk: In-kernel accelerator for virtio block device Liu Yuan
2011-07-28 14:29 ` [RFC PATCH] vhost-blk: An in-kernel accelerator for virtio-blk Liu Yuan
2011-07-28 14:47   ` Christoph Hellwig
2011-07-29 11:19     ` Liu Yuan [this message]
2011-07-28 15:18   ` Stefan Hajnoczi
2011-07-28 15:22   ` Michael S. Tsirkin
2011-07-29 15:09     ` Liu Yuan
2011-08-01  6:25     ` Liu Yuan
2011-08-01  8:12       ` Michael S. Tsirkin
2011-08-01  8:55         ` Liu Yuan
2011-08-01 10:26           ` Michael S. Tsirkin
2011-08-11 19:59     ` Dongsu Park
2011-08-12  8:56       ` Alan Cox
2011-07-28 14:29 ` [RFC PATCH] vhost: Enable vhost-blk support Liu Yuan
2011-07-28 15:44 ` [RFC PATCH]vhost-blk: In-kernel accelerator for virtio block device Stefan Hajnoczi
2011-07-29  4:48   ` Stefan Hajnoczi
2011-07-29  7:59     ` Liu Yuan
2011-07-29 10:55       ` Christoph Hellwig
2011-07-29  7:22   ` Liu Yuan
2011-07-29  9:06     ` Stefan Hajnoczi
2011-07-29 12:01       ` Liu Yuan
2011-07-29 12:29         ` Stefan Hajnoczi
2011-07-29 12:50           ` Stefan Hajnoczi
2011-07-29 14:45             ` Liu Yuan
2011-07-29 14:50               ` Liu Yuan
2011-07-29 15:25         ` Sasha Levin
2011-08-01  8:17           ` Avi Kivity
2011-08-01  9:18             ` Liu Yuan
2011-08-01  9:37               ` Avi Kivity
2011-07-29 18:12     ` Badari Pulavarty
2011-08-01  5:46       ` Liu Yuan
2011-08-01  8:12         ` Christoph Hellwig
2011-08-04 21:58         ` Badari Pulavarty
2011-08-05  7:56           ` Liu Yuan
2011-08-05 11:04           ` Liu Yuan
2011-08-05 18:02             ` Badari Pulavarty
2011-08-08  1:35               ` Liu Yuan
2011-08-08  5:04                 ` Badari Pulavarty
2011-08-08  7:31                   ` Liu Yuan
2011-08-08 17:16                     ` Badari Pulavarty
2011-08-10  2:19                       ` Liu Yuan
2011-08-10 20:37                         ` Badari Pulavarty
2011-08-11  3:01                           ` Liu Yuan
2011-08-11  3:19                             ` Liu Yuan
2011-08-11 23:51                               ` Badari Pulavarty
2011-08-12  4:50                               ` Badari Pulavarty
2011-08-12  6:46                                 ` Dongsu Park
2011-08-12  8:27                                 ` Liu Yuan
2011-08-12 11:40                                   ` Liu Yuan
2011-08-12 16:12                                     ` Badari Pulavarty
2011-08-15  3:20                                       ` Liu Yuan
2011-08-15  4:17                                         ` Badari Pulavarty
2011-08-16  5:44                                           ` Liu Yuan
2011-09-07 13:36                                           ` Liu Yuan

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