From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751645AbbCTKQI (ORCPT ); Fri, 20 Mar 2015 06:16:08 -0400 Received: from casper.infradead.org ([85.118.1.10]:37966 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751332AbbCTKQH (ORCPT ); Fri, 20 Mar 2015 06:16:07 -0400 Date: Fri, 20 Mar 2015 11:15:58 +0100 From: Peter Zijlstra To: Linus Torvalds Cc: Rafael David Tinoco , LKML , Thomas Gleixner , Jens Axboe , Frederic Weisbecker Subject: Re: smp_call_function_single lockups Message-ID: <20150320101558.GD17717@twins.programming.kicks-ass.net> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 11, 2015 at 12:42:10PM -0800, Linus Torvalds wrote: > Ok, this is a more involved patch than I'd like, but making the > *caller* do all the CSD maintenance actually cleans things up. > > And this is still completely untested, and may be entirely buggy. What > do you guys think? > Linus, any plans for this patch? I think it does solve a fair few issues the current code has. do you want me to route it through tip (and write a changelog while I'm at it) or will you be taking it yourself?