source-changes: Re: CVS commit: src/sys/kern

Subject: Re: CVS commit: src/sys/kern
To: YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
From: Paul Kranenburg <pk@cs.few.eur.nl>
List: source-changes
Date: 05/07/2004 00:56:33

> can cache_enter() be called without dvp locked exclusively?

Yes, any "read-only" lookup in a directory will not pass LOCKPARENT
to the filesystem lookup routine. So multiple processes may be looking
for an entry simultaneously.