----- Original Message -----
From: "H. Peter Anvin" <hpa@zytor.com>
To: <linux-kernel@vger.kernel.org>
Sent: Thursday, December 13, 2001 3:38 PM
Subject: Re: Mounting a in-ROM filesystem efficiently
> Followup to: <20011213160007.D998D23CCB@persephone.dmz.logatique.fr>
> By author: Thomas Capricelli <orzel@kde.org>
> In newsgroup: linux.dev.kernel
>
> > Ideally, i would give address/length of the fs in ROM to a function, and
I
> > would get a ramdisk configured to read its data exactly there, and not
in
> > ram.
>
> The right thing for you to do is to write a block device driver, and
> then mount that block device like any order device. Your in-use data
> will be copied to RAM (i.e. cached), but it can be dropped and
> re-fetched as necessary. This should be the desired behaviour.
That's one way (q.v. MTD block device), but it adds an unecessary block
layer.
The cramfs patch I mentioned shuns the block layer and instead allows the fs
to read directly from ROM.
Regards,
Brad
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This archive was generated by hypermail 2b29 : Sat Dec 15 2001 - 21:00:27 EST