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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 596B9C47082 for ; Thu, 3 Jun 2021 20:49:30 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D55F061263 for ; Thu, 3 Jun 2021 20:49:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D55F061263 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=emersion.fr Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 3A42E6B0036; Thu, 3 Jun 2021 16:49:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3542E6B006C; Thu, 3 Jun 2021 16:49:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1F5806B006E; Thu, 3 Jun 2021 16:49:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0227.hostedemail.com [216.40.44.227]) by kanga.kvack.org (Postfix) with ESMTP id DE3866B0036 for ; Thu, 3 Jun 2021 16:49:28 -0400 (EDT) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 780698249980 for ; Thu, 3 Jun 2021 20:49:28 +0000 (UTC) X-FDA: 78213603216.04.0C68530 Received: from mail-40131.protonmail.ch (mail-40131.protonmail.ch [185.70.40.131]) by imf28.hostedemail.com (Postfix) with ESMTP id 0208220015FA for ; Thu, 3 Jun 2021 20:49:06 +0000 (UTC) Date: Thu, 03 Jun 2021 20:49:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=emersion.fr; s=protonmail3; t=1622753351; bh=h+xqUPyPmpZqgGOARjxUKlsGR88oIfRjRW+RtwkTUcY=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References:From; b=tAS/QGasrvotYj4fDb6t+BWp0SS4Dd0mftmIZ99S5FOL/iM17azAr4ruKXBCqlXPI jQM3qZXzZ+ZnUqMtUhBR9pPGsRARApsXAdKqP1ua7Pjv0lO3grxMejuHM+1mcH4A5A izRd10W0L4MhPt3MqV0IuKp5zUXvqv2yUzoEFSDjEz85mikZxnvOrfUZLKaDJX8nNF JwO574ZeefcTTDwwdo6MFO2U55w7Bq7HX6C4GXuzEQj9yBeT3JFNG8DjrCqb+src9u Ow7ErQjL/2xcFrJ23/VT+pdfjuzIbNn1APNpZop5qhpspZsYk67E55tpmeqMnPeuSy 6m4CfRA4wEJJg== To: Ming Lin From: Simon Ser Cc: Linus Torvalds , Hugh Dickins , Peter Xu , "Kirill A. Shutemov" , Matthew Wilcox , Dan Williams , "Kirill A. Shutemov" , Will Deacon , Linux Kernel Mailing List , David Herrmann , "linux-mm@kvack.org" , Greg Kroah-Hartman , "tytso@mit.edu" Reply-To: Simon Ser Subject: Re: Sealed memfd & no-fault mmap Message-ID: In-Reply-To: References: <36fc2485-11f1-5252-904d-f26b63a6cd58@gmail.com> <0464f8dd-d082-b246-83ff-609f0f48de59@gmail.com> <8By7yERxX_qlsLZuOeJihJqeU-pZtFxsS2zrQ1ssN6-NkyIRrv-r81Ux_PTcb8qy7QA1HmkRxTeixT5MaJs7NKk0rqxDC9Nu9DoTRmS0UHw=@emersion.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 0208220015FA Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=emersion.fr header.s=protonmail3 header.b="tAS/QGas"; dmarc=pass (policy=none) header.from=emersion.fr; spf=pass (imf28.hostedemail.com: domain of contact@emersion.fr designates 185.70.40.131 as permitted sender) smtp.mailfrom=contact@emersion.fr X-Rspamd-Server: rspam03 X-Stat-Signature: 7fy4gxmsy1iwtbdo5hr6yrogeuzmcw5j X-HE-Tag: 1622753346-513036 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thursday, June 3rd, 2021 at 10:07 PM, Ming Lin wrote: > In the new version of the patches, MAP_NOSIGBUS is not restricted to shme= m. > It can be used on ordinary files. Oh, cool! FWIW, if I had to choose between "MAP_NOSIGBUS not restricted to shm" and "MAP_NOSIGBUS not restricted to MAP_PRIVATE", I'd probably choose the latter. But of course the former is better than nothing at all.