linux-kernel - Re: [fuse-devel] OSS Proxy Jack slave

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Date:	Thu, 10 Jun 2010 17:26:53 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Miklos Szeredi <miklos@...redi.hu>
CC:	hmajxxlh@...bac.com, fuse-devel@...ts.sourceforge.net,
	mszeredi@...e.cz, linux-kernel@...r.kernel.org
Subject: Re: [fuse-devel] OSS Proxy Jack slave

Hello,

On 06/10/2010 03:28 PM, Miklos Szeredi wrote:
> On Thu, 10 Jun 2010, Tejun Heo wrote:
> I'm sure its a good idea to provide an interface that does't _require_
> server side mmaps.  This doesn't preclude an mmap interface later on,
> but I'd rather start with a "pure" read/write device interface, which
> is in a lot of ways simpler to solve than mmap.

It doesn't preclude that but then again having two interfaces can be a
bit silly.

> As for pinning kernel pages, I still think it's a good idea for the
> char device interface, but you're right, it's not necessary.
> 
> In fact I'm mostly ready with an implementation of store/retrieve that
> just pokes the regular page cache.

But I think if we can avoid using pinned kernel pages, pure r/w based
implementation could be different and useful enough, so yeah, great.

Thanks.

-- 
tejun
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