From patchwork Fri May 20 11:14:31 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Gruenbacher X-Patchwork-Id: 9129291 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 249B260762 for ; Fri, 20 May 2016 11:16:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 17317200E7 for ; Fri, 20 May 2016 11:16:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0C16227BF1; Fri, 20 May 2016 11:16:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ADFF1200E7 for ; Fri, 20 May 2016 11:16:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933106AbcETLQb (ORCPT ); Fri, 20 May 2016 07:16:31 -0400 Received: from mx1.redhat.com ([209.132.183.28]:35033 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932244AbcETLQa (ORCPT ); Fri, 20 May 2016 07:16:30 -0400 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 903F6710B6; Fri, 20 May 2016 11:16:29 +0000 (UTC) Received: from nux.redhat.com (vpn1-6-219.ams2.redhat.com [10.36.6.219]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u4KBEaem029310; Fri, 20 May 2016 07:16:22 -0400 From: Andreas Gruenbacher To: Alexander Viro Cc: Andreas Gruenbacher , linux-fsdevel@vger.kernel.org, Tyler Hicks , ecryptfs@vger.kernel.org, Miklos Szeredi , linux-unionfs@vger.kernel.org, Mimi Zohar , linux-ima-devel@lists.sourceforge.net, linux-security-module@vger.kernel.org, David Howells , Serge Hallyn , Dmitry Kasatkin , Paul Moore , Stephen Smalley , Eric Paris , Casey Schaufler , Oleg Drokin , Andreas Dilger Subject: [PATCH v2 14/18] libfs: Use IOP_XATTR flag for empty directory handling Date: Fri, 20 May 2016 13:14:31 +0200 Message-Id: <1463742875-9836-15-git-send-email-agruenba@redhat.com> In-Reply-To: <1463742875-9836-1-git-send-email-agruenba@redhat.com> References: <1463742875-9836-1-git-send-email-agruenba@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Fri, 20 May 2016 11:16:29 +0000 (UTC) Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: X-Virus-Scanned: ClamAV using ClamSMTP Instead of special xattr inode operations, use the IOP_XATTR inode operations flag for the special libfs empty directories. Signed-off-by: Andreas Gruenbacher --- fs/libfs.c | 21 +-------------------- 1 file changed, 1 insertion(+), 20 deletions(-) diff --git a/fs/libfs.c b/fs/libfs.c index 92215d5..06057e9 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -1119,23 +1119,6 @@ static int empty_dir_setattr(struct dentry *dentry, struct iattr *attr) return -EPERM; } -static int empty_dir_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) -{ - return -EOPNOTSUPP; -} - -static ssize_t empty_dir_getxattr(struct dentry *dentry, struct inode *inode, - const char *name, void *value, size_t size) -{ - return -EOPNOTSUPP; -} - -static int empty_dir_removexattr(struct dentry *dentry, const char *name) -{ - return -EOPNOTSUPP; -} - static ssize_t empty_dir_listxattr(struct dentry *dentry, char *list, size_t size) { return -EOPNOTSUPP; @@ -1146,9 +1129,6 @@ static const struct inode_operations empty_dir_inode_operations = { .permission = generic_permission, .setattr = empty_dir_setattr, .getattr = empty_dir_getattr, - .setxattr = empty_dir_setxattr, - .getxattr = empty_dir_getxattr, - .removexattr = empty_dir_removexattr, .listxattr = empty_dir_listxattr, }; @@ -1184,6 +1164,7 @@ void make_empty_dir_inode(struct inode *inode) inode->i_blocks = 0; inode->i_op = &empty_dir_inode_operations; + inode->i_opflags &= ~IOP_XATTR; inode->i_fop = &empty_dir_operations; }