From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753488AbYLAXXS (ORCPT ); Mon, 1 Dec 2008 18:23:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751528AbYLAXXI (ORCPT ); Mon, 1 Dec 2008 18:23:08 -0500 Received: from nf-out-0910.google.com ([64.233.182.185]:4473 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751247AbYLAXXE (ORCPT ); Mon, 1 Dec 2008 18:23:04 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=XGwalsmNp9CR3z4MNJzbPbwyyU/SIMuTBO9vsm7E6WZTS+CRxNSZqd34e+ot+aAgbY WsK2PmEyi+flDMg4eVoSs3Fvj/W4Epv93yf9Kn3a8OpHqyATxe5j4Mh0lGbCKbLu1UQw oAtSVZH/HRCiNF3v84T/ZVxRB5Rs3Kq2ez8Uk= Date: Tue, 2 Dec 2008 00:22:31 +0100 From: Marcin Slusarz To: Laurent Riffard , Jan Kara Cc: Stephen Rothwell , linux-next@vger.kernel.org, LKML Subject: [PATCH] udf: fix default mode and dmode options handling Message-ID: <20081201232227.GA7925@joi> References: <20081128213620.2ec593d4.sfr@canb.auug.org.au> <49332545.5020604@free.fr> <20081201001854.GA9881@joi> <49343AC2.3010808@free.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <49343AC2.3010808@free.fr> User-Agent: Mutt/1.5.16 (2007-06-09) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 01, 2008 at 08:28:02PM +0100, Laurent Riffard wrote: > >> With next-2008-11-28, I was unable to mount an UDF-formatted DVD-RW: > > Can you check whether attached patch fixes it? > Current kernel is next-20081128 + reiser4 patches + your patch: it seems to works well now. > (...) > Tested-by: Laurent Riffard Thanks! Jan, please apply this patch: --- From: Marcin Slusarz Subject: [PATCH] udf: fix default mode and dmode options handling On x86 (and several other archs) mode_t is defined as "unsigned short" and comparing unsigned shorts to negative ints is broken (because short is promoted to int and then compared). Fix it. Reported-and-tested-by: Laurent Riffard Signed-off-by: Marcin Slusarz --- fs/udf/inode.c | 4 ++-- fs/udf/super.c | 8 ++++---- fs/udf/udf_sb.h | 2 ++ 3 files changed, 8 insertions(+), 6 deletions(-) diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 6612a27..2d7e56a 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -1222,10 +1222,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) iinfo->i_lenExtents = inode->i_size; if (fe->icbTag.fileType != ICBTAG_FILE_TYPE_DIRECTORY && - sbi->s_fmode != -1) + sbi->s_fmode != UDF_INVALID_MODE) inode->i_mode = sbi->s_fmode; else if (fe->icbTag.fileType == ICBTAG_FILE_TYPE_DIRECTORY && - sbi->s_dmode != -1) + sbi->s_dmode != UDF_INVALID_MODE) inode->i_mode = sbi->s_dmode; else inode->i_mode = udf_convert_permissions(fe); diff --git a/fs/udf/super.c b/fs/udf/super.c index e5d121d..8deaa61 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -284,9 +284,9 @@ static int udf_show_options(struct seq_file *seq, struct vfsmount *mnt) seq_printf(seq, ",gid=%u", sbi->s_gid); if (sbi->s_umask != 0) seq_printf(seq, ",umask=%o", sbi->s_umask); - if (sbi->s_fmode != -1) + if (sbi->s_fmode != UDF_INVALID_MODE) seq_printf(seq, ",mode=%o", sbi->s_fmode); - if (sbi->s_dmode != -1) + if (sbi->s_dmode != UDF_INVALID_MODE) seq_printf(seq, ",dmode=%o", sbi->s_dmode); if (UDF_QUERY_FLAG(sb, UDF_FLAG_SESSION_SET)) seq_printf(seq, ",session=%u", sbi->s_session); @@ -1894,8 +1894,8 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) uopt.uid = -1; uopt.gid = -1; uopt.umask = 0; - uopt.fmode = -1; - uopt.dmode = -1; + uopt.fmode = UDF_INVALID_MODE; + uopt.dmode = UDF_INVALID_MODE; sbi = kzalloc(sizeof(struct udf_sb_info), GFP_KERNEL); if (!sbi) diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h index 5d32c60..158221e 100644 --- a/fs/udf/udf_sb.h +++ b/fs/udf/udf_sb.h @@ -48,6 +48,8 @@ #define UDF_SPARABLE_MAP15 0x1522U #define UDF_METADATA_MAP25 0x2511U +#define UDF_INVALID_MODE ((mode_t)-1) + #pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */ struct udf_meta_data { -- 1.5.6.4