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Re: /dev/recycle

To: Christoph Rohland <hans-christoph.rohland@sap.com>
Subject: Re: /dev/recycle
From: Jamie Lokier <lk@tantalophile.demon.co.uk>
Date: Fri, 24 Mar 2000 14:10:01 +0100
Cc: Chuck Lever <cel@monkey.org>, linux-mm@kvack.org
In-Reply-To: <qwwitycivbx.fsf@sap.com>; from Christoph Rohland on Fri, Mar 24, 2000 at 10:14:10AM +0100
References: <20000322233147.A31795@pcep-jamie.cern.ch> <Pine.BSO.4.10.10003231332080.20600-100000@funky.monkey.org> <20000324010031.B20140@pcep-jamie.cern.ch> <qwwitycivbx.fsf@sap.com>
Sender: owner-linux-mm@kvack.org

Christoph Rohland wrote:
> > MAP_RECYCLE|MAP_ANON initially allocates pages like MAP_ANON.  Mapping
> > /dev/recycle is similar (but subtly different).
> 
> This would only work for /dev/zero like mappings. I need it for shm
> mappings.

Open /dev/recycle several times and map it shared -- it's the same as
anonymous shared mappings.  The owner of pages is considered to be the
filehandle itself in that case.

-- Jamie
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Follow-Ups:
- Re: /dev/recycle
  - From: Christoph Rohland <hans-christoph.rohland@sap.com>

References:
- Re: madvise (MADV_FREE)
  - From: Jamie Lokier <jamie.lokier@cern.ch>
- Re: madvise (MADV_FREE)
  - From: Chuck Lever <cel@monkey.org>
- /dev/recycle
  - From: Jamie Lokier <lk@tantalophile.demon.co.uk>
- Re: /dev/recycle
  - From: Christoph Rohland <hans-christoph.rohland@sap.com>
- Re: /dev/recycle
  - From: Christoph Rohland <hans-christoph.rohland@sap.com>

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