Date: Mon, 8 Jul 1996 21:12:56 +0200 (MET DST) From: J Wunsch <j@uriah.heep.sax.de> To: freebsd-hackers@freebsd.org (FreeBSD hackers) Cc: hal@snitt.com (Hal Snyder) Subject: Re: async? soft updates? Message-ID: <199607081912.VAA01423@uriah.heep.sax.de> In-Reply-To: <31e13be4.945083749@vogon.trans.sni-usa.com> from Hal Snyder at "Jul 8, 96 04:51:18 pm"
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As Hal Snyder wrote: > How exactly does async mount work? What is deferred, until when? `metadata' updates. Right now, updates to things like directory entries are done synchronously by default. That means, if you rm -r a large tree, the heads will become very noisy. Likewise, if you turn off the machine during a large file-creating process (untarring an archive for example), you'll end up with a bunch of files with zero length directory entries. -- The dir entries have been updated synchronously, but the file data itself didn't make it onto the disk yet. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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