From patchwork Fri Oct 10 14:23:27 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 5065941 Return-Path: X-Original-To: patchwork-ocfs2-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 8D5409F295 for ; Fri, 10 Oct 2014 14:26:16 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F3B5E20204 for ; Fri, 10 Oct 2014 14:26:11 +0000 (UTC) Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CBD232022D for ; Fri, 10 Oct 2014 14:26:10 +0000 (UTC) Received: from acsinet22.oracle.com (acsinet22.oracle.com [141.146.126.238]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id s9AEPuNb015334 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 10 Oct 2014 14:25:57 GMT Received: from oss.oracle.com (oss-external.oracle.com [137.254.96.51]) by acsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s9AEPu0D029470 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 10 Oct 2014 14:25:56 GMT Received: from localhost ([127.0.0.1] helo=oss.oracle.com) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1Xcb8m-0001KM-EJ; Fri, 10 Oct 2014 07:25:56 -0700 Received: from ucsinet21.oracle.com ([156.151.31.93]) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1Xcb76-00014q-OW for ocfs2-devel@oss.oracle.com; Fri, 10 Oct 2014 07:24:13 -0700 Received: from aserp1030.oracle.com (aserp1030.oracle.com [141.146.126.68]) by ucsinet21.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s9AEOBkN026441 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 10 Oct 2014 14:24:12 GMT Received: from userp2030.oracle.com (userp2030.oracle.com [156.151.31.89]) by aserp1030.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id s9AEOAiv023737 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 10 Oct 2014 14:24:11 GMT Received: from pps.filterd (userp2030.oracle.com [127.0.0.1]) by userp2030.oracle.com (8.14.7/8.14.7) with SMTP id s9AEOAkH037653 for ; Fri, 10 Oct 2014 14:24:10 GMT Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by userp2030.oracle.com with ESMTP id 1px7147ht7-1 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NOT) for ; Fri, 10 Oct 2014 14:24:10 +0000 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id DEA61ADEA; Fri, 10 Oct 2014 14:24:03 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id C279E81FE7; Fri, 10 Oct 2014 16:24:01 +0200 (CEST) From: Jan Kara To: linux-fsdevel@vger.kernel.org Date: Fri, 10 Oct 2014 16:23:27 +0200 Message-Id: <1412951028-4085-23-git-send-email-jack@suse.cz> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1412951028-4085-1-git-send-email-jack@suse.cz> References: <1412951028-4085-1-git-send-email-jack@suse.cz> References: bnc#864880 X-ServerName: cantor2.suse.de X-Proofpoint-Virus-Version: vendor=nai engine=5600 definitions=7586 signatures=670543 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=1 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1410100121 Cc: Dave Kleikamp , jfs-discussion@lists.sourceforge.net, Petr Vandrovec , tytso@mit.edu, Jeff Mahoney , Mark Fasheh , Dave Chinner , reiserfs-devel@vger.kernel.org, xfs@oss.sgi.com, cluster-devel@redhat.com, Dave Chiluk , linux-ext4@vger.kernel.org, Steven Whitehouse , ocfs2-devel@oss.oracle.com, viro@zeniv.linux.org.uk Subject: [Ocfs2-devel] [PATCH] ncpfs: fix rmdir returns Device or resource busy X-BeenThere: ocfs2-devel@oss.oracle.com X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ocfs2-devel-bounces@oss.oracle.com Errors-To: ocfs2-devel-bounces@oss.oracle.com X-Source-IP: acsinet22.oracle.com [141.146.126.238] X-Spam-Status: No, score=-5.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Dave Chiluk 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 Acked-by: Jan Kara --- fs/ncpfs/dir.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c index 816326093656..6792ce11f2bf 100644 --- a/fs/ncpfs/dir.c +++ b/fs/ncpfs/dir.c @@ -1029,15 +1029,6 @@ 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));