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Date: Thu, 14 Feb 2002 02:19:25 -0800
From: Andrew Morton <akpm@zip.com.au>
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To: Martin Dalecki <dalecki@evision-ventures.com>
CC: Pavel Machek <pavel@suse.cz>, Jens Axboe <axboe@suse.de>,
        kernel list <linux-kernel@vger.kernel.org>
Subject: Re: another IDE cleanup: kill duplicated code
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Martin Dalecki wrote:
> 
> >The file_readahead setting works as expected and as desired.  Or at
> >least it did a few weeks ago.
> >
> The few weeks ago thing matters. It doesn't any longer.
> 

Please explain, in detail, why /proc/ide/hdX/settings:file_readhead
no longer controls the readhead for that device.  If this is
the case in thr current 2.4 kernel, or if it will become the
case if/when the IDE patches are merged then that needs fixing.


Look, I agree that the current readhead controls are junk, and
do not belong in the driver layer at all.   All I'm saying is
that we need per-device controls, for whatever scheme we end
up using for readhead in 2.5.   We really don't want to have
the same sized readhead for CDROMs, floppies and super-duper
RAID arrays.

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