Received: by 10.223.185.116 with SMTP id b49csp5307529wrg; Wed, 7 Mar 2018 09:33:26 -0800 (PST) X-Google-Smtp-Source: AG47ELtJArupn5XFSd+UsOZGgvBROItQ03lTTH1/my4m1LGz+U9hu3wT3pWJeJDowgil2wRQRjbk X-Received: by 2002:a17:902:42a3:: with SMTP id h32-v6mr21623484pld.231.1520444006482; Wed, 07 Mar 2018 09:33:26 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1520444006; cv=none; d=google.com; s=arc-20160816; b=iXFjv9VpxRo0VPsuPdsvl80xWw2SAm3TMC6gmiN/vGv/PeX6Fqr5zZFdzVlN1XOiLz L9sDPwAJYulFcDaZlrpzm3fhqJcR7j9CGjprvifFTJf7Grs1bxX9cSQm0l7r+Ecse645 e0tVGaybfZ0uJq/eurbU+lO5zEmEcu2Y3xXYlmVOLmH1+A2sttiy2l4ThweyeLCNKEvu IMxqqN9aBYStmj8sbVsJxXNgOo9OQCc+FbxvDWwp3AzjIMkxVhNBdu4e2kezqE+/MWfs NJmt+gqnzCE6BbSGwRIfbPHOWzyL+TgEg4l02or95fuun7ygqzv/kNA2ka8Xs2x1GV0I ZiTw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=Yebcrs7jpKEtDwR/nopgPiiB0vg2b7g8bl876nxFk0M=; b=JIrMf3MXwVMJUTrqzQGYa+IW3P14UkqbLiKWd7p3e1WfPIQnWofKOFjw5h07V8FMHS EJjQ2uqkCmdWS5CwmV1ZuUr/fO9Y6zSThE/Ao0hUE279ClwIT37wwZMkbbvyaY8UFTbM BZMJ8NDCGwSxt17APidYFwFc7qg8d+DOHO/xPJk0Gsz+knqgnXhFlP6GXmGT7NzUdwEn vmphwYeeD7Nm/oI6iwaoGtw/h9UDeVzXoytk2GVLd4FDyCTwJFkiLQrN3WMgYeZI3mZb aFVrFKdMdendsbXYMx1/BbnxQGevW+tIe/6cmMEWZeTyhaLHnYnTfXO4YjDomXnyexoi M7BA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id y1si11732239pgs.208.2018.03.07.09.33.11; Wed, 07 Mar 2018 09:33:26 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933746AbeCGRcE (ORCPT + 99 others); Wed, 7 Mar 2018 12:32:04 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:42652 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933412AbeCGRcC (ORCPT ); Wed, 7 Mar 2018 12:32:02 -0500 Received: from localhost (unknown [185.236.200.248]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id C6F42CBC; Wed, 7 Mar 2018 17:32:00 +0000 (UTC) Date: Wed, 7 Mar 2018 09:32:02 -0800 From: Greg Kroah-Hartman To: Tim Chen Cc: stable@vger.kernel.org, Andy Lutomirski , Nadav Amit , Thomas Gleixner , Andrew Morton , Arjan van de Ven , Borislav Petkov , Dave Hansen , Linus Torvalds , Mel Gorman , Peter Zijlstra , Rik van Riel , Ingo Molnar , David Woodhouse , ak@linux.intel.com, karahmed@amazon.de, pbonzini@redhat.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/2] Backport IBPB on context switch to non-dumpable process Message-ID: <20180307173202.GK7097@kroah.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 02, 2018 at 01:32:08PM -0800, Tim Chen wrote: > Greg, > > I will like to propose backporting "x86/speculation: Use Indirect Branch > Prediction Barrier on context switch" from commit 18bf3c3e in upstream > to 4.9 and 4.4 stable. The patch has already been ported to 4.14 and > 4.15 stable. The patch needs mm context id that Andy added in commit > f39681ed. I have lifted the mm context id change from Andy's upstream > patch and included it here. Applied to 4.9.y, but I need a separate set of patches for 4.4.y in order for them to work there. Can you provide that? thanks, greg k-h