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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 CC150C433E3 for ; Wed, 31 Mar 2021 09:52:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B9DE3619D9 for ; Wed, 31 Mar 2021 09:52:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234819AbhCaJwP (ORCPT ); Wed, 31 Mar 2021 05:52:15 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:50468 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234796AbhCaJwA (ORCPT ); Wed, 31 Mar 2021 05:52:00 -0400 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1617184319; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=n1O7Ro6mrGBXJy3LP3Zw2Gkl3YAtQijGkEfBpifq0EY=; b=HOyvQwSa53zJ3yf71cTgELVGcLqHXdkEK2CEu0gp8OOSYvuiixqKkqMfNgPS0F8oVFPIHE jmTzygMsSqwM+rt29Adn27OOdO49isF18RvQg0mAQfmkFgpaJNv4mh1DRS9+lAtrRi6b+P Ro21ZHuRiMHNvQUb+nXtLIzOIg3JEvJeGMMyri2/ypbeOCuJMZvchRNPnovTvqdE1BbA7T R2vKVR4tyr+SiXlTslxxbG0DHokYavrSaZNNT1G4SUzhnFFcwg5e15WaZHNZwyf9UTXZbL xavqaUR4MieS1A7hev8sMd33SCgzb1Gb+gQgVJS1eWXoPhtyx53w8qC//dfFAw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1617184319; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=n1O7Ro6mrGBXJy3LP3Zw2Gkl3YAtQijGkEfBpifq0EY=; b=b37v2WvjQZmtY/D9COwHoRQgG0LNzM16wZTVkFlEwRlC91LuvoB0tJpX9LKQezq8LIoIc1 pYKfVfp3jHfyD4Cg== To: Mel Gorman , Ingo Molnar , Peter Zijlstra Cc: Linux-MM , Linux-RT-Users , LKML , Chuck Lever , Jesper Dangaard Brouer , Matthew Wilcox Subject: Re: [RFC PATCH 0/6] Use local_lock for pcp protection and reduce stat overhead In-Reply-To: <20210331085213.GZ3697@techsingularity.net> References: <20210329120648.19040-1-mgorman@techsingularity.net> <20210331085213.GZ3697@techsingularity.net> Date: Wed, 31 Mar 2021 11:51:59 +0200 Message-ID: <87a6qj6474.ffs@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 31 2021 at 09:52, Mel Gorman wrote: > Ingo, Thomas or Peter, is there any chance one of you could take a look > at patch "[PATCH 2/6] mm/page_alloc: Convert per-cpu list protection to > local_lock" from this series? It's partially motivated by PREEMPT_RT. More > details below. Sure.