linux-kernel - Re: block devices in userland

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Message-ID: <20080710182417.GC13483@ucw.cz>
Date:	Thu, 10 Jul 2008 20:24:18 +0200
From:	Pavel Machek <pavel@...e.cz>
To:	Enrico Weigelt <weigelt@...ux.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: block devices in userland

On Sat 2008-07-05 18:29:02, Enrico Weigelt wrote:
> * devzero@....de <devzero@....de> wrote:
> > >is there an API for writing block device drivers in userland ?
> > 
> > i don`t know if there is some in vanilla, but maybe dm-userspace is worth taking a look at ?
> > see http://wiki.xensource.com/xenwiki/DmUserspace
> 
> hmm, doesn't seem to be what I'm looking for - it just leaves the 
> mapping of virtual to physical blocks to userland. 
> 
> What I need is passing the whole read/write requests to some userland
> deamon - these blocks won't come from any (in-kernel) block device,
> but an totally different kind of storage (eg. venti).

nbd, but be careful about deadlocks.

-- 
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