Received: by 2002:a05:6a10:5bc5:0:0:0:0 with SMTP id os5csp925599pxb; Fri, 15 Oct 2021 20:23:20 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwoArmt7tiYRAvw4muxKTg9zh7olaiiegFaNiGdkM0X1p1QZ334Xu2SxTXgpOUWNljH7jQQ X-Received: by 2002:a17:902:ec8e:b0:13f:69af:5aef with SMTP id x14-20020a170902ec8e00b0013f69af5aefmr14451031plg.7.1634354599576; Fri, 15 Oct 2021 20:23:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1634354599; cv=none; d=google.com; s=arc-20160816; b=OfaIQxEWRX0iQQn4f2C84SMokWLzqLhWLO6LVqJeyY/S0BDX6rOy5j49CDQNvd7Sj4 wRj9jBzO+wNvmI8xyRPdmnZpVemwJVO6tErjSgWFJaCM4DTb+Z8gEUyrD42P+ar9B6QV Wa4H0Jo4gxhxBHhJkeo7eYWOgsu4gEvqFJQhzrxSNiPNjRsmb2V+4kO4mwsJkHchgWfO ErrM/C/n69H3tOeQ4Q+lZqIa1n6JhJjSKtSRjpDhpUSr9W3yNW8/gEc7/FTgb+0d3cYw YhCKL70sxuMiV9bNKGEWTDOWJqPyORvwHOorwxO9bhMx88gOnc/1zeEtMf/nJEC3K52p D99w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=Hl51WkBd6Z0GuZcXmOXw7H68jVbO8i+rjRoH58leiek=; b=BI9FaU/bI39uzaJTi7O58/b04zBkKy2CttW++8sH9jNPEXGXczIcPyPxGLSpooB3xZ BH6apm9xcZIo5vM7pPNhxB0STRCFmH9LPRiKx790Uo624B3UVN4AaXRb6Zu/3Dr6cavO akpX/EAMHCMHPOCOFcMcfcx/HcTwQtUVwag0zXp6zUp460mtGx6jk773qlaiTNYPNOtU xKFOttZtNwt6V+6tAAFdhjKufdk6NRLvLdndDMiMLWRfgcMyDKTLDsSlLv6ZcjAqQCHi Dj7wN3DA+xBAo+HufBWYY8tdknOh9Mp+KuR9lTc20xODRwmJbBXjRyDJ4OWtLDREP5Mu fktQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=desiato.20200630 header.b=EWDdmjOH; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id c3si12466830pgc.199.2021.10.15.20.23.07; Fri, 15 Oct 2021 20:23:19 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=desiato.20200630 header.b=EWDdmjOH; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239139AbhJONFC (ORCPT + 99 others); Fri, 15 Oct 2021 09:05:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35028 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239128AbhJONFB (ORCPT ); Fri, 15 Oct 2021 09:05:01 -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 3CFBEC061570 for ; Fri, 15 Oct 2021 06:02:55 -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-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=Hl51WkBd6Z0GuZcXmOXw7H68jVbO8i+rjRoH58leiek=; b=EWDdmjOHLSAtIBfcZu0/ku7Wfq TTlSyPu3K5s7TEpdyBZNs0PfIPNW+tWR7JY7c7yll8ORo2NLZZpVBSxnoOjkA+9tazaJgTQrfveyQ +Jlqa/fPGBZFVm9coHqvhwQ7CkXHayLHteLXWdY9uItkOLmQF6FFsxtfppxTRRFX6ldWrDOuRpv8m 6GbFQVY8EpbuZkm41A6LTik17J0Es0ONuExTB+mfbDj80UAn6UKDpV00volEezOcbuwwO9a4fw4s3 0O2GYjbrXUTJl0SqG6vQ0kzFE0/Dus7i1ODdHWtIp5QgYVRABj8Af8Ckm5iEWRvphp2xzG86cNWFO VAUgrwQA==; 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 #2 (Red Hat Linux)) id 1mbMr5-00A0Gu-Kf; Fri, 15 Oct 2021 13:02:35 +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) server-digest SHA256) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 1A5D8300577; Fri, 15 Oct 2021 15:02:34 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id EE135212B43C0; Fri, 15 Oct 2021 15:02:33 +0200 (CEST) Date: Fri, 15 Oct 2021 15:02:33 +0200 From: Peter Zijlstra To: Valentin Schneider Cc: Woody Lin , Ingo Molnar , Ben Segall , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Mel Gorman , Daniel Bristot de Oliveira , linux-kernel@vger.kernel.org Subject: Re: [PATCH] sched/scs: Reset the shadow stack when idle_task_exit Message-ID: References: <20211012083521.973587-1-woodylin@google.com> <87zgrek1gl.mognet@arm.com> <87wnmijysj.mognet@arm.com> <87tuhljbi4.mognet@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87tuhljbi4.mognet@arm.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 13, 2021 at 02:32:51PM +0100, Valentin Schneider wrote: > As for the SCS change, someone might argue for placing this elsewhere in > the hotplug path, but that looks fine to me: > > Reviewed-by: Valentin Schneider Thanks!