linux-kernel - Re: [PATCH 1/5] aio: Export symbols and struct kiocb

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Date:	Thu, 12 Jul 2012 18:50:16 +0100
From:	James Bottomley <James.Bottomley@...senPartnership.com>
To:	Asias He <asias@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	virtualization@...ts.linux-foundation.org, kvm@...r.kernel.org,
	Benjamin LaHaise <bcrl@...ck.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	"Michael S. Tsirkin" <mst@...hat.com>, linux-aio@...ck.org,
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 1/5] aio: Export symbols and struct kiocb_batch for in
 kernel aio usage

On Thu, 2012-07-12 at 23:35 +0800, Asias He wrote:
> This is useful for people who want to use aio in kernel, e.g. vhost-blk.
> 
> Signed-off-by: Asias He <asias@...hat.com>
> ---
>  fs/aio.c            |   37 ++++++++++++++++++-------------------
>  include/linux/aio.h |   21 +++++++++++++++++++++
>  2 files changed, 39 insertions(+), 19 deletions(-)

Um, I think you don't quite understand how aio in the kernel would work;
it's not as simple as just exporting the interfaces.  There's already a
(very long) patch set from oracle to do this so loop can use aio:

http://marc.info/?l=linux-fsdevel&m=133312234313122

James


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