Subject: Re: [RFC] Patch to allow distributed flock
From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Ken Preslan <kpreslan@redhat.com>
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <1088127425.8906.40.camel@lade.trondhjem.org>
References: <20040624231057.GA13033@potassium.msp.redhat.com>
	 <1088121132.8906.29.camel@lade.trondhjem.org>
	 <20040625000720.GA13755@potassium.msp.redhat.com>
	 <1088127425.8906.40.camel@lade.trondhjem.org>
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8BIT
Message-Id: <1088128034.8906.49.camel@lade.trondhjem.org>
Mime-Version: 1.0
Date: Thu, 24 Jun 2004 21:47:14 -0400
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 897
Lines: 20

P? to , 24/06/2004 klokka 21:37, skreiv Trond Myklebust:
> P? to , 24/06/2004 klokka 20:07, skreiv Ken Preslan:
> 
> > If the FS is managing the posix locks and/or flocks, is there really a
> > reason to acquire the VFS versions of the locks too?  As long as there is
> > some bit set that tells the VFS to call down into the FS to unlock the
> > locks on process exit, keeping both sets of locks seems wasteful.
> > What am I missing?

...Oh I forgot to mention --- If you want to support mandatory locks (?)
then the VFS interface can serve as a billboard for posting those
regions of the file that are off-limits to other processes.

Cheers,
  Trond
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/