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=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 C7295C43381 for ; Mon, 18 Mar 2019 10:49:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9656E20854 for ; Mon, 18 Mar 2019 10:49:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="SRscWw6y" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727586AbfCRKtC (ORCPT ); Mon, 18 Mar 2019 06:49:02 -0400 Received: from merlin.infradead.org ([205.233.59.134]:55094 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726795AbfCRKtB (ORCPT ); Mon, 18 Mar 2019 06:49:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; 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:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=37iKTTycHgymG5vLs1/cC5jMxScUAYgMDd+1fPYQgiI=; b=SRscWw6yzfrhbqlbVoToNhpKL QW9CUhFZ41g19HDiiyvQ+3jtMH7RMOQ2sDS/pBthA4ta3cTSbuvkJlHmioW7vvNjjqx/2wnpO2xHn zyiBGJZ9VVD6Guu2bpETfQThsYOhRh0uYk2ufzM+SkPL8H6fK2jICB7k64LIwUmN7gH4If/hjRA9P /xFqXk9Nf7BLdX36iOrQdwd+C2qH+Wp9Emy9K0gVA2jh1uVnshmhHbr9Z0346rV/3kOvgddLwxCW3 2tLezhKTUqUDSj77nSk3Pwgy4RT3ugqN6UnebrCa/O0a3oLrlM+qKrG+5hJpHrguMEadgdxyR8H8Q lDTSQ0y3g==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1h5pp8-0001bW-3L; Mon, 18 Mar 2019 10:48:54 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 988BA20A0FF8B; Mon, 18 Mar 2019 11:48:52 +0100 (CET) Date: Mon, 18 Mar 2019 11:48:52 +0100 From: Peter Zijlstra To: Thomas Gleixner Cc: chenjie6@huawei.com, linux-kernel@vger.kernel.org, dvhart@infradead.org, mingo@redhat.com, zengweilin@huawei.com Subject: Re: [PATCH] futex:fix robust futex alignment exception Message-ID: <20190318104852.GL6058@hirez.programming.kicks-ass.net> References: <1552621478-119787-1-git-send-email-chenjie6@huawei.com> <20190315084131.GS5996@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Mar 17, 2019 at 03:36:35PM +0100, Thomas Gleixner wrote: > On Fri, 15 Mar 2019, Peter Zijlstra wrote: > > That is; why aren't there any alignment tests anywhere? Or am I just > > gone blind? > > uaddrs for the futex syscalls are checked in get_futex_key(). blind it is... Thanks!