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 3718BC43461 for ; Wed, 5 May 2021 12:34:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0797D613AA for ; Wed, 5 May 2021 12:34:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233425AbhEEMfJ (ORCPT ); Wed, 5 May 2021 08:35:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40386 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232200AbhEEMfI (ORCPT ); Wed, 5 May 2021 08:35:08 -0400 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 57661C061574; Wed, 5 May 2021 05:34:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Transfer-Encoding: Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Sender:Reply-To:Content-ID:Content-Description; bh=6nDsAgZyLnevi7PNrWtRehL0qNVNJeXiu/AjwzP/hUk=; b=O7jZ7bKH59HOcHeEyNTXh8RSfj 88AvWhK7SQ4O5d4bGiPLmvEQB2HI19SdqztgzDdK3mZ3wuw52rwJGJZsHl5VcWSQANqvUKg3UgMPl dCWsPW/PwURSbV139Zan4c5cNQThZdkNcdvFE52oCiI1VLSEOW56vWlHhtmWbmuMXMIcdgQLjgTYt jPOyze3oUKY05vcIpCPEXesuf46GtpoANYw2vYVn+Yg5RAgBcdAEnI/LFQM4fV7fZMesB/aVdnghR ku/oVm2Pgipn+DFtm/4hPq8r5uZbMK3u2f24428SC9coFZ2YpSswu8t9BHpHGObzdF8b1fl5JiL0U yA61Td/g==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1leGgr-001CkZ-31; Wed, 05 May 2021 12:33:45 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 45319300103; Wed, 5 May 2021 14:31:43 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 0C245203E67FA; Wed, 5 May 2021 14:31:43 +0200 (CEST) Date: Wed, 5 May 2021 14:31:42 +0200 From: Peter Zijlstra To: =?iso-8859-1?Q?Andr=E9?= Almeida Cc: Thomas Gleixner , Ingo Molnar , Darren Hart , linux-kernel@vger.kernel.org, Steven Rostedt , Sebastian Andrzej Siewior , kernel@collabora.com, krisman@collabora.com, pgriffais@valvesoftware.com, z.figura12@gmail.com, joel@joelfernandes.org, malteskarupke@fastmail.fm, linux-api@vger.kernel.org, fweimer@redhat.com, libc-alpha@sourceware.org, linux-kselftest@vger.kernel.org, shuah@kernel.org, acme@kernel.org, corbet@lwn.net, Peter Oskolkov Subject: Re: [PATCH v3 00/13] Add futex2 syscalls Message-ID: References: <20210427231248.220501-1-andrealmeid@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20210427231248.220501-1-andrealmeid@collabora.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 27, 2021 at 08:12:35PM -0300, André Almeida wrote: > Hi, > > This patch series introduces the futex2 syscalls. I still utterly detest that this adds a second hash-table for no descernable reason. The new syscall interface does not depend on that in any way, you previously implemented the multi-wait thing in the current futex code. Like I said last time; I'm okay with the new interface, but I don't see why you need to reimplement the insides, that's all pointless code duplication.