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Date: Wed, 05 Jun 2002 03:39:53 -0700
From: Andrew Morton <akpm@zip.com.au>
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To: Xavier Bestel <xavier.bestel@free.fr>
CC: Andreas Dilger <adilger@clusterfs.com>,
        lkml <linux-kernel@vger.kernel.org>
Subject: Re: [rfc] "laptop mode"
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Xavier Bestel wrote:
> 
> Le mer 05/06/2002 ? 01:43, Andrew Morton a ?crit :
> 
> > Also, it has been suggested that the feature become more fully-fleshed,
> > to support desktops with one disk spun down, etc.  It's not really
> > rocket science to do that - the `struct backing_dev_info' gives
> > a specific communication channel between the high-level VFS code and
> > the request queue.  But that would require significantly more surgery
> > against the writeback code, so I'm fishing for requirements here.  If
> > the current (simple) patch is sufficient then, well, it is sufficient.
> 
> Have per-disk laptop-mode, so that some user-mode proggy (e.g. hotplug)
> could decide what to do.

But why?

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