Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754206Ab3JLATF (ORCPT ); Fri, 11 Oct 2013 20:19:05 -0400 Received: from mail-qc0-f172.google.com ([209.85.216.172]:62118 "EHLO mail-qc0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752638Ab3JLATD convert rfc822-to-8bit (ORCPT ); Fri, 11 Oct 2013 20:19:03 -0400 References: <1381494322-2426-1-git-send-email-jlayton@redhat.com> <20131011200756.GB22160@fieldses.org> <20131011192118.483e436f@tlielax.poochiereds.net> <20131011234923.GD8688@samba2> Mime-Version: 1.0 (1.0) In-Reply-To: <20131011234923.GD8688@samba2> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8BIT Message-Id: Cc: Jeff Layton , Andreas Dilger , "linux-fsdevel@vger.kernel.org Devel" , Ganesha NFS List , "samba-technical@lists.samba.org" , Linux Kernel Mailing List X-Mailer: iPod Mail (10A403) From: Scott Lovenberg Subject: Re: [RFC PATCH 0/5] locks: implement "filp-private" (aka UNPOSIX) locks Date: Fri, 11 Oct 2013 20:18:58 -0400 To: Jeremy Allison Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1189 Lines: 22 On Oct 11, 2013, at 19:49, Jeremy Allison wrote: > On Fri, 11 Oct 2013 15:36:43 -0600 Andreas Dilger wrote: >>> >>> At this point, my main questions are: >>> >>> 1) does this look useful, particularly for fileserver implementors? > > Yes from the Samba perspective. We'll have to keep the old > code around for compatibility with non-Linux OS'es, but this > will allow Linux Samba to short-circuit a bunch of logic > we have to get around the insane POSIX locking semantics > on close. > > Jeremy. >From the peanut gallery, IIRC from college a few years back, wasn't the POSIX file locking stuff passed by all parties because they intended to do their own thing regardless of the standard? The reason that all locks are blown on a release is mostly because there were already implementations and no one wanted to push the issue, or am I misunderstanding/forgetting the history of file locks in POSIX?-- 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/