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Path: utzoo!linus!philabs!cmcl2!seismo!umcp-cs!chris
From: chris@umcp-cs.UUCP (Chris Torek)
Newsgroups: net.unix-wizards
Subject: Re: Quelling Filesystem Activity
Message-ID: <5319@umcp-cs.UUCP>
Date: Tue, 30-Apr-85 15:18:53 EDT
Article-I.D.: umcp-cs.5319
Posted: Tue Apr 30 15:18:53 1985
Date-Received: Thu, 2-May-85 04:49:06 EDT
References: <134@kontron.UUCP>
Distribution: net
Organization: U of Maryland, Computer Science Dept., College Park, MD
Lines: 13

I was considering fiddling with the umount() system call to add a force
flag, or creating a new system call, which would take away access to a
file system, so that it could be unmounted without taking the machine
down, but never went through with it.  It could be done by taking away
both FREAD and FWRITE permission and syncing and marking in-core inodes
as trash, or something, or (and I kinda like this idea) by actually
switching fp->f_data pointers over to a /dev/null inode and closing the
real files.  It was starting to look ugly, so I never finished it.  Oh
well....
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 4251)
UUCP:	{seismo,allegra,brl-bmd}!umcp-cs!chris
CSNet:	chris@umcp-cs		ARPA:	chris@maryland