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Date: Fri, 27 Apr 2001 00:25:54 +0200
From: Ingo Oeser <ingo.oeser@informatik.tu-chemnitz.de>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: ramdisk/tmpfs/ramfs/memfs ?
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In-Reply-To: <9ca1k1$4ap$1@cesium.transmeta.com>; from hpa@zytor.com on Thu, Apr 26, 2001 at 01:49:05PM -0700
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On Thu, Apr 26, 2001 at 01:49:05PM -0700, H. Peter Anvin wrote:
> > > 5. Can you set size limits on ramfs/tmpfs/memfs?

Yes, there is a patch for this.

> > i don't think you can set a limit in the current ramfs implementation but
> > it would not be particularly difficult to make it work I think
> It's a little more painful than you'd think for the simple reason that
> ramfs currently contains no space accounting whatsoever, which
> probably is a bad thing.  It definitely gave me some serious pause
> when I was working on SuperRescue 1.3, since I had no way of
> reasonably judging how big my ramfs actually was.  The only way I
> could get a reasonable idea was rebooting with various mem=
> parameters.

The patched variant gives to all of it. Even several kinds of
limits (inodes, dentries, ram pages).

I use this patch in production. 

The ac-Kernels all have this patch included, which are sometimes
more stable anyway these day. ;-)

HTH

Regards

Ingo Oeser
-- 
10.+11.03.2001 - 3. Chemnitzer LinuxTag <http://www.tu-chemnitz.de/linux/tag>
         <<<<<<<<<<<<     been there and had much fun   >>>>>>>>>>>>
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