Received: by 10.192.165.156 with SMTP id m28csp1104561imm; Fri, 13 Apr 2018 13:21:22 -0700 (PDT) X-Google-Smtp-Source: AIpwx49gt026wn41rHlfmNqUZVJSCo5qAseXONuGgiUwwVKg4DvtTYO3CcepKQm6ZTAGB1rKjysg X-Received: by 2002:a17:902:102:: with SMTP id 2-v6mr6479389plb.48.1523650882288; Fri, 13 Apr 2018 13:21:22 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1523650882; cv=none; d=google.com; s=arc-20160816; b=cX2PeftisfVepiNlAtTup7LpGfl3t7OOQRiDbihGv24rfm+UOd2KY0uK2nezRn2KPc SALgiELlyqZIkLG/F+DkCWHq7g1+yllWMOdVKltg+m24tq3KKkctA813NlvTLm7Hr7Iv VnKlKAoQRfvAgggKlx5wMy6SLqg0YISgk5yRjszRxwXrzTR5kBx7WUT74vPOJLjRYI8m F0dAFAOuPvRu34BjptKtWEsTCSm76sMdOg/tz3BdplwYP43NbjWBq7GIHCQr/ECHbvla KpR7+LLINSDYIpaz5VSBymmFhnZubPXTjTEgWbSQgLxk7qry3w9aZT9ihzlXFYjhFEcu Gm8A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=L/s0NsIByqzM8bPiLzXIM9yE/IT9LdVTaDOdT/z0mCM=; b=Ie55L2OUqWcFCzwY2Vvy9SJluuSro+Vaf0z0f+JQX36flhDQC9va/6cf1ZB5XVjVWO IiSNxQrzroTgeu+nWreIIEIagp87kXq+z3nqZtUkohAJUh1dYK/89ftj1niAuhd3N7JU XmY6F2dDzeWfrbQPog59xD50dEe1T+E77mVtv+q8Sf13pbfaiekeq73oCYmsPvavZT8H AHpd8v5bVn4KJCmPd5S3Y/z+1eh/60NOU+n5Ip3DU+BmNEy9PtXkou2qvaGK8A9BWnJQ uZY03bnP0rQiPHyrKX4sk63WTACe7DlVglCdPWOE9zwvvZEz/U1Yv7NVvB0T1C/zArFj g1OQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id n11-v6si6086492plg.236.2018.04.13.13.21.06; Fri, 13 Apr 2018 13:21:22 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751076AbeDMUT5 (ORCPT + 99 others); Fri, 13 Apr 2018 16:19:57 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:39726 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750972AbeDMUT4 (ORCPT ); Fri, 13 Apr 2018 16:19:56 -0400 Received: from localhost (unknown [89.188.5.116]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 6C4EFDD2; Fri, 13 Apr 2018 20:19:55 +0000 (UTC) Date: Fri, 13 Apr 2018 22:19:46 +0200 From: Greg KH To: Randy Dunlap Cc: Christian Brauner , viro@zeniv.linux.org.uk, tglx@linutronix.de, kstewart@linuxfoundation.org, pombredanne@nexb.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, serge@hallyn.com Subject: Re: [PATCH 1/6] fs: use << for MS_* flags Message-ID: <20180413201946.GA22641@kroah.com> References: <20180413161126.31313-1-christian.brauner@ubuntu.com> <20180413161126.31313-2-christian.brauner@ubuntu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 13, 2018 at 09:45:01AM -0700, Randy Dunlap wrote: > On 04/13/2018 09:11 AM, Christian Brauner wrote: > > Consistenly use << to define MS_* constants. > > > > Signed-off-by: Christian Brauner > > --- > > include/uapi/linux/fs.h | 33 +++++++++++++++++---------------- > > 1 file changed, 17 insertions(+), 16 deletions(-) > > > > diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h > > index d2a8313fabd7..9662790a657c 100644 > > --- a/include/uapi/linux/fs.h > > +++ b/include/uapi/linux/fs.h > > @@ -105,22 +105,23 @@ struct inodes_stat_t { > > /* > > * These are the fs-independent mount-flags: up to 32 flags are supported > > */ > > -#define MS_RDONLY 1 /* Mount read-only */ > > -#define MS_NOSUID 2 /* Ignore suid and sgid bits */ > > -#define MS_NODEV 4 /* Disallow access to device special files */ > > -#define MS_NOEXEC 8 /* Disallow program execution */ > > -#define MS_SYNCHRONOUS 16 /* Writes are synced at once */ > > -#define MS_REMOUNT 32 /* Alter flags of a mounted FS */ > > -#define MS_MANDLOCK 64 /* Allow mandatory locks on an FS */ > > -#define MS_DIRSYNC 128 /* Directory modifications are synchronous */ > > -#define MS_NOATIME 1024 /* Do not update access times. */ > > -#define MS_NODIRATIME 2048 /* Do not update directory access times */ > > -#define MS_BIND 4096 > > -#define MS_MOVE 8192 > > -#define MS_REC 16384 > > -#define MS_VERBOSE 32768 /* War is peace. Verbosity is silence. > > - MS_VERBOSE is deprecated. */ > > -#define MS_SILENT 32768 > > +#define MS_RDONLY (1<<0) /* Mount read-only */ > > Why not just use BIT(n) instead? > > #include > > #define MS_RDONLY BIT(0) /* Mount read-only */ BIT() is not exported to uapi files :(