Date: Tue, 17 Jun 2008 17:51:39 +0200
From: =?utf-8?B?SsO2cm4=?= Engel <joern@logfs.org>
To: Jan Engelhardt <jengelh@medozas.de>
Cc: Maxim Shchetynin <maxim@linux.vnet.ibm.com>, linux-fsdevel@vger.kernel.org,
       Matthew Wilcox <matthew@wil.cx>, linux-kernel@vger.kernel.org
Subject: Re: AZFS file system proposal
Message-ID: <20080617155139.GF28448@logfs.org>
References: <20080609104650.4f220492@mercedes-benz.boeblingen.de.ibm.com> <20080609125530.GF30405@parisc-linux.org> <20080610104919.504b9826@mercedes-benz.boeblingen.de.ibm.com> <alpine.LNX.1.10.0806110000560.20733@fbirervta.pbzchgretzou.qr> <20080617110655.59c915da@mercedes-benz.boeblingen.de.ibm.com> <alpine.LNX.1.10.0806171133220.6620@fbirervta.pbzchgretzou.qr> <20080617135722.374673b9@mercedes-benz.boeblingen.de.ibm.com> <alpine.LNX.1.10.0806171634040.32473@fbirervta.pbzchgretzou.qr>
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On Tue, 17 June 2008 16:36:28 +0200, Jan Engelhardt wrote:
> 
> tmpfs plus XIP

That looks seriously disturbed.  Normal filesystems have a backing store
plus a page cache.  Tmpfs removes the backing store and keeps everything
in the page cache.  XIP removes the page cache and leaves everything in
the backing store - which is memory.

Would tmpfs plus XIP remove both the page cache and the backing store?

Jörn

-- 
Data dominates. If you've chosen the right data structures and organized
things well, the algorithms will almost always be self-evident. Data
structures, not algorithms, are central to programming.
-- Rob Pike
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