From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754833Ab2EON6Y (ORCPT ); Tue, 15 May 2012 09:58:24 -0400 Received: from mga02.intel.com ([134.134.136.20]:23764 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752032Ab2EON6X (ORCPT ); Tue, 15 May 2012 09:58:23 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.67,352,1309762800"; d="scan'208";a="140866821" Message-ID: <4FB260F1.5040800@intel.com> Date: Tue, 15 May 2012 21:58:09 +0800 From: Alex Shi User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20111229 Thunderbird/9.0 MIME-Version: 1.0 To: Peter Zijlstra CC: Borislav Petkov , rob@landley.net, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, arnd@arndb.de, rostedt@goodmis.org, fweisbec@gmail.com, jeremy@goop.org, gregkh@linuxfoundation.org, riel@redhat.com, luto@mit.edu, avi@redhat.com, len.brown@intel.com, dhowells@redhat.com, fenghua.yu@intel.com, ak@linux.intel.com, cpw@sgi.com, steiner@sgi.com, akpm@linux-foundation.org, penberg@kernel.org, hughd@google.com, rientjes@google.com, kosaki.motohiro@jp.fujitsu.com, n-horiguchi@ah.jp.nec.com, paul.gortmaker@windriver.com, trenn@suse.de, tj@kernel.org, oleg@redhat.com, axboe@kernel.dk, kamezawa.hiroyu@jp.fujitsu.com, viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 3/7] x86/flush_tlb: try flush_tlb_single one by one in flush_tlb_range References: <1336626013-28413-1-git-send-email-alex.shi@intel.com> <1336626013-28413-4-git-send-email-alex.shi@intel.com> <20120510084213.GD30055@aftab.osrc.amd.com> <4FAB84B6.7060706@intel.com> <4FAE18D0.6050001@intel.com> <20120513111328.GD28863@aftab.osrc.amd.com> <4FB1AC03.2070407@intel.com> <20120515103307.GB27153@aftab.osrc.amd.com> <1337080582.27694.40.camel@twins> <20120515115638.GE27153@aftab.osrc.amd.com> <1337083243.27020.153.camel@laptop> In-Reply-To: <1337083243.27020.153.camel@laptop> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/15/2012 08:00 PM, Peter Zijlstra wrote: > On Tue, 2012-05-15 at 13:56 +0200, Borislav Petkov wrote: >> On Tue, May 15, 2012 at 01:16:22PM +0200, Peter Zijlstra wrote: >>> Wouldn't all this become much prettier if you rip out that >>> multi-vector stuff? >> >> multi-vector stuff? Please elaborate. > > The INVALIDATE_TLB_VECTOR muck: > > apic->send_IPI_mask(to_cpumask(f->flush_cpumask), > INVALIDATE_TLB_VECTOR_START + sender); > > and simply use: > > smp_call_function() > I am trying this following the patchset. but that should another work thread.