Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756773AbbDOWSZ (ORCPT ); Wed, 15 Apr 2015 18:18:25 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:35919 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752916AbbDOWST (ORCPT ); Wed, 15 Apr 2015 18:18:19 -0400 Date: Wed, 15 Apr 2015 23:18:04 +0100 From: Al Viro To: Andy Lutomirski Cc: One Thousand Gnomes , Greg Kroah-Hartman , Steven Rostedt , Richard Weinberger , "Eric W. Biederman" , Linus Torvalds , Andrew Morton , Arnd Bergmann , Tom Gundersen , Jiri Kosina , "linux-kernel@vger.kernel.org" , Daniel Mack , David Herrmann , Djalal Harouni Subject: Re: [GIT PULL] kdbus for 4.1-rc1 Message-ID: <20150415221804.GP889@ZenIV.linux.org.uk> References: <20150415084812.GG16381@kroah.com> <20150415122555.74258d63@lxorguk.ukuu.org.uk> <20150415154551.GE6801@home.goodmis.org> <20150415163520.GA25105@kroah.com> <20150415130649.6f9ab20f@gandalf.local.home> <20150415173145.GA26146@kroah.com> <20150415225611.0c256ea6@lxorguk.ukuu.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 619 Lines: 13 On Wed, Apr 15, 2015 at 03:11:17PM -0700, Andy Lutomirski wrote: > This is functionally identical to passing AF_UNIX socket fds over > SCM_RIGHTS, but I want something much lighter weight. Most of the weight in SCM_RIGHTS comes from the fact that you can pass AF_UNIX sockets over it, which requires a garbage collector. Exclude that and suddenly it becomes very cheap... -- 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/