From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id A929888B for ; Tue, 11 Aug 2015 21:32:22 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 6D477128 for ; Tue, 11 Aug 2015 21:32:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D6EFF206BD for ; Tue, 11 Aug 2015 21:32:21 +0000 (UTC) Received: from mail-wi0-f177.google.com (mail-wi0-f177.google.com [209.85.212.177]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2CB73206B7 for ; Tue, 11 Aug 2015 21:32:18 +0000 (UTC) Received: by wibhh20 with SMTP id hh20so1837843wib.0 for ; Tue, 11 Aug 2015 14:32:16 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: Date: Tue, 11 Aug 2015 14:32:16 -0700 Message-ID: From: Kevin Hilman To: Andy Lutomirski Content-Type: text/plain; charset=UTF-8 Cc: "ksummit-discuss@lists.linuxfoundation.org" , Peter Zijlstra , "linux-kernel@vger.kernel.org" , Chris Metcalf , Christoph Lameter , Ingo Molnar Subject: Re: [Ksummit-discuss] [BELATED CORE TOPIC] context tracking / nohz / RCU state List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, Aug 11, 2015 at 10:49 AM, Andy Lutomirski wrote: > This is a bit late, but here goes anyway. > > Having played with the x86 context tracking hooks for awhile, I think > it would be nice if core code that needs to be aware of CPU context > (kernel, user, idle, guest, etc) could come up with single, > comprehensible, easily validated set of hooks that arch code is > supposed to call. Having worked on both the arm and arm64 implementations of context tracking, I'm interested in this as well. Kevin