Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759525AbXFJFqq (ORCPT ); Sun, 10 Jun 2007 01:46:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751922AbXFJFqi (ORCPT ); Sun, 10 Jun 2007 01:46:38 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:51859 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753990AbXFJFqh (ORCPT ); Sun, 10 Jun 2007 01:46:37 -0400 Date: Sun, 10 Jun 2007 06:46:28 +0100 From: Al Viro To: Linus Torvalds Cc: dean gaudet , Kyle Moffett , Ulrich Drepper , Davide Libenzi , Alan Cox , Theodore Tso , Eric Dumazet , Linux Kernel Mailing List , Andrew Morton , Ingo Molnar Subject: Re: [patch 7/8] fdmap v2 - implement sys_socket2 Message-ID: <20070610054628.GF21478@ftp.linux.org.uk> References: <20070609165454.GE4095@ftp.linux.org.uk> <466ADEAB.7080202@redhat.com> <20070609172429.GF4095@ftp.linux.org.uk> <2E51520E-EC73-457F-809A-4749ED9A3C97@mac.com> <20070609200645.GG4095@ftp.linux.org.uk> <20070610031922.GC21478@ftp.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1080 Lines: 21 On Sat, Jun 09, 2007 at 10:06:27PM -0700, Linus Torvalds wrote: > Why the hell doesn't that thing just do an "fstat()" on the thing, and > compare the inode number? Not that I would guarantee that it works either > for a socket, but it would seem to make more sense than what it apparently > does now, and I think it should work at least on Linux. It works on Linux, all right. > (Ie linux will give fake "st_ino" numbers to sockets. Whether anybody else > will do that, I have no friggin clue. And you probably shouldn't depend on > it even under Linux, but damn, despite all of those issues, it's likely > better and more logical than what libnss-ldap apparently does now ;) On FreeBSD it will simply give you zero st_ino on almost all sockets; AF_UNIX ones get st_ino invented (and stable). st_dev is NODEV in all cases... - 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/