From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90DABC4161D for ; Tue, 20 Nov 2018 20:07:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5C18620989 for ; Tue, 20 Nov 2018 20:07:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b="HFWEa+JM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5C18620989 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=canb.auug.org.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727337AbeKUGiM (ORCPT ); Wed, 21 Nov 2018 01:38:12 -0500 Received: from ozlabs.org ([203.11.71.1]:33191 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725977AbeKUGiM (ORCPT ); Wed, 21 Nov 2018 01:38:12 -0500 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPSA id 42zxZC6dgKz9s4s; Wed, 21 Nov 2018 07:07:15 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=canb.auug.org.au DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=canb.auug.org.au; s=201702; t=1542744437; bh=mNKQiB+Yp+9B2gXTKy18+MrbRbKbCf5nPorI3AsHS6I=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=HFWEa+JMyspZ+HH6SODGo+J8qGt/Qnu6aoRnk+Exg8bn27J8bPvzAA6EWDpDumQ0s 2vFeb+mepagUsVfsWE+3UT78nYqXQpEUaRVuWcsYKeQTlJFePujAoy98pIQTJ9A47v kiCtuGO9LYe4dZLTw5GKKaR1HbRwTPi7B/UjT9sOhF+zaJY1TDNeu/itEQq/RXVwWb HdsjzRnUcOd7p5LPOm3PuFdyeQbeKs96uDfBV7AIUmuZMD6w+XGU62QROn4/p79e6Z GN1J7gEo6obnc4Fd0BCh3rpek9M0N+wCThKhuES/l/A/uV0FYYLb/EUDSwj2wpzQ+w auAEURn8wsffg== Date: Wed, 21 Nov 2018 07:07:06 +1100 From: Stephen Rothwell To: Joel Fernandes Cc: Andy Lutomirski , LKML , Andrew Morton , Hugh Dickins , Jann Horn , Khalid Aziz , Linux API , "open list:KERNEL SELFTEST FRAMEWORK" , Linux-MM , marcandre.lureau@redhat.com, Matthew Wilcox , Mike Kravetz , Shuah Khan Subject: Re: [PATCH -next 1/2] mm/memfd: make F_SEAL_FUTURE_WRITE seal more robust Message-ID: <20181121070658.011d576d@canb.auug.org.au> In-Reply-To: <20181120183926.GA124387@google.com> References: <20181120052137.74317-1-joel@joelfernandes.org> <20181120183926.GA124387@google.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; boundary="Sig_/ooUNGYHyJAbidRTGc1JxAN0"; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/ooUNGYHyJAbidRTGc1JxAN0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi Joel, On Tue, 20 Nov 2018 10:39:26 -0800 Joel Fernandes = wrote: > > On Tue, Nov 20, 2018 at 07:13:17AM -0800, Andy Lutomirski wrote: > > On Mon, Nov 19, 2018 at 9:21 PM Joel Fernandes (Google) > > wrote: =20 > > > > > > A better way to do F_SEAL_FUTURE_WRITE seal was discussed [1] last we= ek > > > where we don't need to modify core VFS structures to get the same > > > behavior of the seal. This solves several side-effects pointed out by > > > Andy [2]. > > > > > > [1] https://lore.kernel.org/lkml/20181111173650.GA256781@google.com/ > > > [2] https://lore.kernel.org/lkml/69CE06CC-E47C-4992-848A-66EB23EE6C74= @amacapital.net/ > > > > > > Suggested-by: Andy Lutomirski > > > Fixes: 5e653c2923fd ("mm: Add an F_SEAL_FUTURE_WRITE seal to memfd") = =20 > >=20 > > What tree is that commit in? Can we not just fold this in? =20 >=20 > It is in linux-next. Could we keep both commits so we have the history? Well, its in Andrew's mmotm, so its up to him. --=20 Cheers, Stephen Rothwell --Sig_/ooUNGYHyJAbidRTGc1JxAN0 Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAlv0aWoACgkQAVBC80lX 0GzyDwgAnINJOo+z0k5/uEZUNf1WTX20DuqXkwO5M+usRMxeraxGHTcP0NqYzcE7 tnsF/WBGwqXOrB0//rRttyqg9oHKCZatgDs5SUPIaPXuSCSc8/72uWZxNleiHnMQ CjQwVZbxXzQU1aNT5hplpctUU1Y/MEMqPivy3pcUAPowvbGIYh2TM5OFvIQxqeyU hhRDUzS2ijhyxE65IzYbE9+a90YkBliE0GcR3+92Lfs2+dafP+VI0ExM95niyNaP TFYDevRCS7JwDx4ASR07wsbs1Vs9Y4nA3ZGyCDMVogbqBEx+VQQaGpgwTtkvJhhb m6MpQMsDAMHBBs/2I1f53tSwtuh0kg== =2jN8 -----END PGP SIGNATURE----- --Sig_/ooUNGYHyJAbidRTGc1JxAN0--