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[147.75.80.249]) by mx.google.com with ESMTPS id a640c23a62f3a-a6276a16364si381821066b.145.2024.05.27.14.12.54 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 May 2024 14:12:54 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-191231-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b=TnKVm2Q4; arc=pass (i=1 dkim=pass dkdomain=infradead.org); spf=pass (google.com: domain of linux-kernel+bounces-191231-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-191231-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id 9C4EF1F22BF4 for ; Mon, 27 May 2024 16:27:08 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 32C3373477; Mon, 27 May 2024 16:18:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="TnKVm2Q4" Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E01CB79E1; Mon, 27 May 2024 16:18:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716826726; cv=none; b=XyfOCCa00izn5O0Oe7AHx8Z/3JshK70GZQ0UkUbUpAyK8p+DqA1KvNB/bMqCq6WMefHdhviIy5BfLRPMu3cxbmmMnFhCcBIIaOk1j8WWEFmyCghqw2lFtzBxgFDBrDvENGDYWBeobyeWgSDQzFtG+jJ+ctbh1fDTrQVU0Trb0cg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716826726; c=relaxed/simple; bh=ZEnmDGmMJqj7KEk0ie3CBFZIM36XwTtC+ckNMpV5JfA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=GI81Dklr9ayYOSBUhw5NQ8K+CxXlS4N0huhVBmh1bAT1iNthFAu023hz1k3qwlUobrKlThpeH7BRgR4/LB5jOZSAeTZFf0Pu0P2p6CyYTsP1OKTV61V1F0N0Qty6sg5rmE8uDRk6OVlRBfAxKxv4sNzVLyRkvdC3Fog5Zeb3sAk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=TnKVm2Q4; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=JyExT2QPBjjTN261WejZJyr+bksuXTqgMx7dvL3bvtY=; b=TnKVm2Q4KZu7XfdiuIjFl8l2SP q7qPLdiljlgYB7E80/3wwB3hzjoz3kAqSxx2hfBsNzff2Lvan1MOekSO5SbiDDoh4RU36nCdPD9FP fBj1/3DjSR8cTMl++NeR/r5vIY5T5Qhr96JWh/5ZyoPM1eBqqBFVmtHHbxIXsVmUa5U7ObrLoeXW5 cigut4X1NasDd1Nq8xyrek6PMBJnN8DXY0Tim68pOSDiKhc169bghhuL9IHyvXuK4Ll8b5x5XbJEf LBsX2ObopJrIbe6ZmfSqeZJZdZd6qa+UusBavEKyszCWBGYJ/pIZYHpObtGlpSjiYcC1+5ZWHtj5Q 7TpxP1QQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1sBd3Y-0000000FoRe-3veR; Mon, 27 May 2024 16:18:40 +0000 Date: Mon, 27 May 2024 09:18:40 -0700 From: Christoph Hellwig To: Christian Brauner Cc: Christoph Hellwig , Aleksa Sarai , Alexander Viro , Jan Kara , Chuck Lever , Jeff Layton , Amir Goldstein , Alexander Aring , linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-api@vger.kernel.org Subject: Re: [PATCH RFC v2] fhandle: expose u64 mount id to name_to_handle_at(2) Message-ID: References: <20240523-exportfs-u64-mount-id-v2-1-f9f959f17eb1@cyphar.com> <20240526.184753-detached.length.shallow.contents-jWkMukeD7VAC@cyphar.com> <20240527-hagel-thunfisch-75781b0cf75d@brauner> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240527-hagel-thunfisch-75781b0cf75d@brauner> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Mon, May 27, 2024 at 02:29:02PM +0200, Christian Brauner wrote: > I see not inherent problem with exposing the 64 bit mount id through > name_to_handle_at() as we already to expose the old one anyway. That's one way to frame it. The other is that exposing the different mount ID also doesn't substantially fix the problem, so it's not worth the churn.