From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752064Ab3GBLU1 (ORCPT ); Tue, 2 Jul 2013 07:20:27 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:36148 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754484Ab3GBLH4 (ORCPT ); Tue, 2 Jul 2013 07:07:56 -0400 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Dave Chiluk , Petr Vandrovec , Al Viro , Luis Henriques Subject: [PATCH 04/50] ncpfs: fix rmdir returns Device or resource busy Date: Tue, 2 Jul 2013 12:06:52 +0100 Message-Id: <1372763258-20664-5-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1372763258-20664-1-git-send-email-luis.henriques@canonical.com> References: <1372763258-20664-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.5.7.16 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Dave Chiluk commit 698b8223631472bf982ed570b0812faa61955683 upstream. 1d2ef5901483004d74947bbf78d5146c24038fe7 caused a regression in ncpfs such that directories could no longer be removed. This was because ncp_rmdir checked to see if a dentry could be unhashed before allowing it to be removed. Since 1d2ef5901483004d74947bbf78d5146c24038fe7 introduced a change that incremented dentry->d_count causing it to always be greater than 1 unhash would always fail. Thus causing the error path in ncp_rmdir to always be taken. Removing this error path is safe as unhashing is still accomplished by calls to dput from vfs_rmdir. Signed-off-by: Dave Chiluk Signed-off-by: Petr Vandrovec Signed-off-by: Al Viro Signed-off-by: Luis Henriques --- fs/ncpfs/dir.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c index aeed93a..9560fd7 100644 --- a/fs/ncpfs/dir.c +++ b/fs/ncpfs/dir.c @@ -1033,15 +1033,6 @@ static int ncp_rmdir(struct inode *dir, struct dentry *dentry) DPRINTK("ncp_rmdir: removing %s/%s\n", dentry->d_parent->d_name.name, dentry->d_name.name); - /* - * fail with EBUSY if there are still references to this - * directory. - */ - dentry_unhash(dentry); - error = -EBUSY; - if (!d_unhashed(dentry)) - goto out; - len = sizeof(__name); error = ncp_io2vol(server, __name, &len, dentry->d_name.name, dentry->d_name.len, !ncp_preserve_case(dir)); -- 1.8.1.2