Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754929Ab2BUTxy (ORCPT ); Tue, 21 Feb 2012 14:53:54 -0500 Received: from mx1.redhat.com ([209.132.183.28]:5038 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753299Ab2BUTxv (ORCPT ); Tue, 21 Feb 2012 14:53:51 -0500 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells Subject: [PATCH 46/73] union-mount: Follow mount in __lookup_union() [ver #2] To: linux-fsdevel@vger.kernel.org, viro@ZenIV.linux.org.uk, valerie.aurora@gmail.com Cc: linux-kernel@vger.kernel.org, David Howells Date: Tue, 21 Feb 2012 18:03:15 +0000 Message-ID: <20120221180315.25235.54661.stgit@warthog.procyon.org.uk> In-Reply-To: <20120221175721.25235.8901.stgit@warthog.procyon.org.uk> References: <20120221175721.25235.8901.stgit@warthog.procyon.org.uk> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1007 Lines: 31 From: Valerie Aurora In order for read-only layers of a union to have submounts, we have to follow mounts on directories in union lookup. Original-author: Valerie Aurora Signed-off-by: David Howells --- fs/namei.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 3ac07be..37e32b4 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1195,6 +1195,8 @@ static int __lookup_union(struct nameidata *nd, struct qstr *name, * layer's directory to the union stack for the topmost * directory. */ + follow_mount(&lower); + if (!topmost->dentry->d_inode) { err = union_create_topmost_dir(&parent, name, topmost, &lower); -- 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/