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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 900BDC433E0 for ; Sat, 13 Feb 2021 17:46:29 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1D75B64E2A for ; Sat, 13 Feb 2021 17:46:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1D75B64E2A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ucw.cz Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AC6B16E85C; Sat, 13 Feb 2021 17:46:28 +0000 (UTC) X-Greylist: delayed 381 seconds by postgrey-1.36 at gabe; Sat, 13 Feb 2021 17:46:26 UTC Received: from jabberwock.ucw.cz (jabberwock.ucw.cz [46.255.230.98]) by gabe.freedesktop.org (Postfix) with ESMTPS id DD3376E85C for ; Sat, 13 Feb 2021 17:46:26 +0000 (UTC) Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id A53E41C0B77; Sat, 13 Feb 2021 18:40:00 +0100 (CET) Date: Sat, 13 Feb 2021 18:40:00 +0100 From: Pavel Machek To: Chris Wilson Message-ID: <20210213174000.GA31409@duo.ucw.cz> References: <20210205163752.11932-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 In-Reply-To: <20210205163752.11932-1-chris@chris-wilson.co.uk> User-Agent: Mutt/1.10.1 (2018-07-13) Subject: Re: [Intel-gfx] [PATCH] kernel: Expose SYS_kcmp by default X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Will Drewry , Kees Cook , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Andy Lutomirski , Andrew Morton , Lucas Stach Content-Type: multipart/mixed; boundary="===============1261030834==" Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" --===============1261030834== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="yrj/dFKFPuw6o+aM" Content-Disposition: inline --yrj/dFKFPuw6o+aM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > Userspace has discovered the functionality offered by SYS_kcmp and has > started to depend upon it. In particular, Mesa uses SYS_kcmp for > os_same_file_description() in order to identify when two fd (e.g. device > or dmabuf) point to the same struct file. Since they depend on it for > core functionality, lift SYS_kcmp out of the non-default > CONFIG_CHECKPOINT_RESTORE into the selectable syscall category. Is it good idea to enable everything because Mesa uses it for file descriptors? This is really interesting syscall... Best regards, Pavel --=20 http://www.livejournal.com/~pavelmachek --yrj/dFKFPuw6o+aM Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQRPfPO7r0eAhk010v0w5/Bqldv68gUCYCgO8AAKCRAw5/Bqldv6 8viIAJ4mzr9pSE2O/4OwUYOLcFI483BApQCgniMQxMn6hxhFTRfMPW42oJKV/iU= =X1NG -----END PGP SIGNATURE----- --yrj/dFKFPuw6o+aM-- --===============1261030834== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx --===============1261030834==--