From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9CF7EC76188 for ; Fri, 19 Jul 2019 13:00:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D37321852 for ; Fri, 19 Jul 2019 13:00:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728643AbfGSNAe (ORCPT ); Fri, 19 Jul 2019 09:00:34 -0400 Received: from mx2.suse.de ([195.135.220.15]:59080 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726239AbfGSNAd (ORCPT ); Fri, 19 Jul 2019 09:00:33 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id C496EAF7A; Fri, 19 Jul 2019 13:00:32 +0000 (UTC) Date: Fri, 19 Jul 2019 15:00:31 +0200 From: Joerg Roedel To: Andy Lutomirski Cc: Joerg Roedel , Dave Hansen , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Andrew Morton , LKML , Linux-MM Subject: Re: [PATCH 3/3] mm/vmalloc: Sync unmappings in vunmap_page_range() Message-ID: <20190719130031.GE19068@suse.de> References: <20190717071439.14261-1-joro@8bytes.org> <20190717071439.14261-4-joro@8bytes.org> <20190718091745.GG13091@suse.de> <20190719122111.GD19068@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 19, 2019 at 05:24:03AM -0700, Andy Lutomirski wrote: > Could you move the vmalloc_sync_all() call to the lazy purge path, > though? If nothing else, it will cause it to be called fewer times > under any given workload, and it looks like it could be rather slow on > x86_32. Okay, I move it to __purge_vmap_area_lazy(). That looks like the right place. Thanks, Joerg