From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Rohland <cr@sap.com>
Subject: Re: shmfs/tmpfs/vm-fs
References: <01120616545301.04747@hishmoom> <m34rn3jobk.fsf@linux.local>
	<01120712372904.00795@hishmoom>
Date: 07 Dec 2001 16:07:44 +0100
Message-ID: <m3vgfjjcfz.fsf@linux.local>
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To: lothar.maerkle@gmx.de
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Hi Lothar,

On Fri, 7 Dec 2001, der erste Schuettler wrote:
> thanks for the paper but, with sysvipc, are msyncs still needed, to
> keep the shared pages in sync with the file on the tmpfs? 

Of course not. sync on tmpfs does nothing.

> You could use the same pages for all...  tmpfs ist cool, is it
> possible to change the permissions on an shared object or istead of
> shmctl IPC_RMID just use rm /de/shm/SYSVblablub?

It was possible in some 2.3 kernels, but this had to be removed with
the cleanup :-(

Greetings
		Christoph


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