From patchwork Wed Jun 10 00:14:10 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: gregkh@suse.de X-Patchwork-Id: 28365 Return-Path: X-Original-To: patchwork-incoming@bilbo.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from ozlabs.org (ozlabs.org [203.10.76.45]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mx.ozlabs.org", Issuer "CA Cert Signing Authority" (verified OK)) by bilbo.ozlabs.org (Postfix) with ESMTPS id CFBB3B70B3 for ; Wed, 10 Jun 2009 13:36:58 +1000 (EST) Received: by ozlabs.org (Postfix) id C122FDDD0B; Wed, 10 Jun 2009 13:36:58 +1000 (EST) Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by ozlabs.org (Postfix) with ESMTP id EFB54DDD04 for ; Wed, 10 Jun 2009 13:36:57 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757605AbZFJDgJ (ORCPT ); Tue, 9 Jun 2009 23:36:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757600AbZFJDgJ (ORCPT ); Tue, 9 Jun 2009 23:36:09 -0400 Received: from kroah.org ([198.145.64.141]:57273 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755648AbZFJDgG (ORCPT ); Tue, 9 Jun 2009 23:36:06 -0400 Received: from localhost (124-9-6-2.static.tfn.net.tw [124.9.6.2]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by coco.kroah.org (Postfix) with ESMTPSA id 352DF490DA; Tue, 9 Jun 2009 20:36:08 -0700 (PDT) X-Mailbox-Line: From greg@blue.kroah.org Tue Jun 9 17:23:49 2009 Message-Id: <20090610002349.355660124@blue.kroah.org> User-Agent: quilt/0.48-1 Date: Tue, 09 Jun 2009 17:14:10 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: Justin Forbes , Zwane Mwaikambo , Theodore Ts'o , Randy Dunlap , Dave Jones , Chuck Wolber , Chris Wedgwood , Michael Krufky , Chuck Ebbert , Domenico Andreoli , Willy Tarreau , Rodrigo Rubira Branco , Jake Edge , Eugene Teo , torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, linux-ext4@vger.kernel.org, Duane Griffin , Andreas Dilger , Greg Kroah-Hartman Subject: [patch 42/60] ext4: dont inherit inappropriate inode flags from parent References: <20090610001328.251476848@blue.kroah.org> Content-Disposition: inline; filename=ext4-don-t-inherit-inappropriate-inode-flags-from-parent.patch Lines: 53 In-Reply-To: <20090610032135.GA19346@kroah.com> Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org -stable review patch. If anyone has any objections, please let us know. ------------------ From: Duane Griffin (cherry picked from commit 8fa43a81b97853fc69417bb6054182e78f95cbeb) At present INDEX and EXTENTS are the only flags that new ext4 inodes do NOT inherit from their parent. In addition prevent the flags DIRTY, ECOMPR, IMAGIC, TOPDIR, HUGE_FILE and EXT_MIGRATE from being inherited. List inheritable flags explicitly to prevent future flags from accidentally being inherited. This fixes the TOPDIR flag inheritance bug reported at http://bugzilla.kernel.org/show_bug.cgi?id=9866. Signed-off-by: Duane Griffin Acked-by: Andreas Dilger Cc: Signed-off-by: Andrew Morton Signed-off-by: "Theodore Ts'o" Signed-off-by: Greg Kroah-Hartman --- fs/ext4/ext4.h | 7 +++++++ fs/ext4/ialloc.c | 2 +- 2 files changed, 8 insertions(+), 1 deletion(-) -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -248,6 +248,13 @@ struct flex_groups { #define EXT4_FL_USER_VISIBLE 0x000BDFFF /* User visible flags */ #define EXT4_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */ +/* Flags that should be inherited by new inodes from their parent. */ +#define EXT4_FL_INHERITED (EXT4_SECRM_FL | EXT4_UNRM_FL | EXT4_COMPR_FL |\ + EXT4_SYNC_FL | EXT4_IMMUTABLE_FL | EXT4_APPEND_FL |\ + EXT4_NODUMP_FL | EXT4_NOATIME_FL |\ + EXT4_NOCOMPR_FL | EXT4_JOURNAL_DATA_FL |\ + EXT4_NOTAIL_FL | EXT4_DIRSYNC_FL) + /* * Inode dynamic state flags */ --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -869,7 +869,7 @@ got: * newly created directory and file only if -o extent mount option is * specified */ - ei->i_flags = EXT4_I(dir)->i_flags & ~(EXT4_INDEX_FL|EXT4_EXTENTS_FL); + ei->i_flags = EXT4_I(dir)->i_flags & EXT4_FL_INHERITED; if (S_ISLNK(mode)) ei->i_flags &= ~(EXT4_IMMUTABLE_FL|EXT4_APPEND_FL); /* dirsync only applies to directories */