Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756331AbZJ3I4l (ORCPT ); Fri, 30 Oct 2009 04:56:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755737AbZJ3I4k (ORCPT ); Fri, 30 Oct 2009 04:56:40 -0400 Received: from msa104.auone-net.jp ([61.117.18.164]:54395 "EHLO msa104.auone-net.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754779AbZJ3I4j (ORCPT ); Fri, 30 Oct 2009 04:56:39 -0400 Date: Fri, 30 Oct 2009 17:56:41 +0900 From: Kusanagi Kouichi To: Christoph Hellwig Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] fs: Don't ignore MS_RDONLY in bind and not remount case. References: <20091030053146.BC2176FC03B@msa105.auone-net.jp> <20091030055337.GA3406@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20091030055337.GA3406@infradead.org> User-Agent: Mutt/1.5.20 (2009-06-14) Message-Id: <20091030085644.2157915C033@msa104.auone-net.jp> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 782 Lines: 22 On 2009-10-30 01:53:37 -0400, Christoph Hellwig wrote: > On Fri, Oct 30, 2009 at 02:31:46PM +0900, Kusanagi Kouichi wrote: > > A readonly bind mount needed to be created in 2 steps > > > > # mount --bind > > # mount --bind -o remount,ro > > > > instead of single > > > > # mount --bind -o ro > > > > because MS_RDONLY is ignored in bind and not remount case. > > I'm pretty sure that was intentional, but I don't remember why anymore. I could not find any reason to restrict this. Could you tell me the reason of this restriction? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/