Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754389AbZIIVZA (ORCPT ); Wed, 9 Sep 2009 17:25:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754373AbZIIVY7 (ORCPT ); Wed, 9 Sep 2009 17:24:59 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:36789 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754369AbZIIVY5 (ORCPT ); Wed, 9 Sep 2009 17:24:57 -0400 Date: Wed, 9 Sep 2009 14:24:03 -0700 From: Andrew Morton To: Miklos Szeredi Cc: Valdis.Kletnieks@vt.edu, hugh.dickins@tiscali.co.uk, matthew@wil.cx, agruen@suse.de, viro@zeniv.linux.org.uk, hch@lst.de, linux-kernel@vger.kernel.org Subject: Re: [patch] vfs: no "(unreachable)" prefix for SYSVIPC maps in /proc/PID/maps Message-Id: <20090909142403.c3b35d4d.akpm@linux-foundation.org> In-Reply-To: References: X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.20; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1349 Lines: 38 On Mon, 07 Sep 2009 17:21:49 +0200 Miklos Szeredi wrote: > Another fix for vfs-fix-d_path-for-unreachable-paths.patch in -mm. > Now I'm confused. > From: Miklos Szeredi > > The patch > > "vfs: fix d_path() for unreachable paths" > > generally changed d_path() to report unreachable paths with a special > prefix. This has an effect on /proc/${PID}/maps as well for memory > maps set up with shmem_file_setup() or hugetlb_file_setup(). These > functions set up unlinked files under a kernel-private vfsmount. > Since this vfsmount is unreachable from userspace, these maps will be > reported with the "(unreachable)" prefix. > > This is undesirable, because it changes the kernel ABI and might break > applications for no good reason. > > Signed-off-by: Miklos Szeredi These three patches are fixes against vfs-fix-d_path-for-unreachable-paths.patch? The description for seq_file-return-a-negative-error-code-when-seq_path_root-fails.patch led me to believe that vfs-fix-d_path-for-unreachable-paths.patch was to be dropped. argh. -- 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/