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Re: [Qemu-devel] [PATCH][RFC] Linux AIO support when using O_DIRECT
From: |
Christoph Hellwig |
Subject: |
Re: [Qemu-devel] [PATCH][RFC] Linux AIO support when using O_DIRECT |
Date: |
Mon, 23 Mar 2009 13:26:04 -0400 |
User-agent: |
Mutt/1.5.18 (2008-05-17) |
On Mon, Mar 23, 2009 at 06:17:36PM +0200, Avi Kivity wrote:
> Instead of introducing yet another layer of indirection, you could add
> block-raw-linux-aio, which would be registered before block-raw-posix
> (which is realy block-raw-threadpool...), and resist a ->probe() if
> caching is enabled.
Exactly the kind of comment I was about to make, but I need to read a
little deeper to understand all the details.
But my gut feeling is that this abstraction doesn't help us very much,
especially with Avi's aiocb pools in place.
Re: [Qemu-devel] [PATCH][RFC] Linux AIO support when using O_DIRECT,
Christoph Hellwig <=