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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9FE2CC433EF for ; Fri, 24 Jun 2022 18:33:02 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 244E98E0262; Fri, 24 Jun 2022 14:33:02 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1F4CB8E0244; Fri, 24 Jun 2022 14:33:02 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0BD138E0262; Fri, 24 Jun 2022 14:33:02 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id F2DED8E0244 for ; Fri, 24 Jun 2022 14:33:01 -0400 (EDT) Received: from smtpin02.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay13.hostedemail.com (Postfix) with ESMTP id CA7BA6091E for ; Fri, 24 Jun 2022 18:33:01 +0000 (UTC) X-FDA: 79613976162.02.34C5BF3 Received: from mail-pl1-f174.google.com (mail-pl1-f174.google.com [209.85.214.174]) by imf04.hostedemail.com (Postfix) with ESMTP id 67ECE40002 for ; Fri, 24 Jun 2022 18:33:01 +0000 (UTC) Received: by mail-pl1-f174.google.com with SMTP id jh14so2821706plb.1 for ; Fri, 24 Jun 2022 11:33:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=oZ+PpXvy2HxH++/ByJ0VVMt+4yKLSRLx88VrFeNzIf8=; b=nA5+j7K4V1TeMU2VczYYBNc4/mcWom0eUMDJWyRm33LxD1nD0Aeh7+Q2NUnmNdPtgl UXKvgNFSq/DMeu0dC20Qas3Q5S3H/9+gnhsDKRwrY5dzq8IjNFsVb41QVkkNiXM0NlsO v8jHwQ42PqHQoT25NHzmOhgKmEYBrjfqOjd/463jUTrlXrpxZzvKMVzVZ76yI/xYoLEj lbikU+utia+4sMhmD8LZgJSbe63M47Oa9cRi1JWzb/YL6BnPs69iXaHbv8W+z4NtTAJF WewoSwmZ9QMZDT0SPMwlNdwtMZ9EnEfcnPjJ6tF4gYlsfb4oa5Q8zK9nKJu7medf2SsL IdDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=oZ+PpXvy2HxH++/ByJ0VVMt+4yKLSRLx88VrFeNzIf8=; b=qQDF3b7BW8Vtvtz2GJJwcSSKDQ2pZTQJaJyfiKBh+IFgFzO0zKrduzCGIsBbuut0qC r9citp6+/MqjRStrLdE8ke/cT2gvT310dxgrX3PnglYo+1AoWGgZmh3cnj6ou7KYT82j X6EB/K5zppqK1hKFA7wJyQNhUA1e75YW+b5atilCi+sDSr3Xky+BrKuGOLJcDYAc0q34 ND4QY1psmrpNim1BOT5DvTMKQa2DdDyvrwkoE4LihIhzxXLbPQzm5S34DE9ffdwCqc+H ZfEAfnP6etX0hygnsFX8bBMpm5XVZ9Trk1mDZmSl5eCkiYzcS4yvGJekGUP4MUy/OL8y BAbQ== X-Gm-Message-State: AJIora8SBqcRslIAxklWvShrs/Qeq0t2uhMYSaJN9tq/sNbEkspwBQFT mGhblfjScL1kDOIdO0Y3cKySQQ== X-Google-Smtp-Source: AGRyM1vmADn1bRiiefpdVyhETEib+mO4UBD8Q29ysfnoIqn4shDh+D+q+ww6pK6n2M3sWQxY/pf99A== X-Received: by 2002:a17:90b:1115:b0:1ec:72f2:77df with SMTP id gi21-20020a17090b111500b001ec72f277dfmr239976pjb.105.1656095580017; Fri, 24 Jun 2022 11:33:00 -0700 (PDT) Received: from google.com (55.212.185.35.bc.googleusercontent.com. [35.185.212.55]) by smtp.gmail.com with ESMTPSA id h6-20020a17090a3d0600b001eab99a42efsm2091467pjc.31.2022.06.24.11.32.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jun 2022 11:32:58 -0700 (PDT) Date: Fri, 24 Jun 2022 11:32:55 -0700 From: Zach O'Keefe To: Muchun Song Cc: Miaohe Lin , akpm@linux-foundation.org, shy828301@gmail.com, willy@infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 01/16] mm/huge_memory: use flush_pmd_tlb_range in move_huge_pmd Message-ID: References: <20220622170627.19786-1-linmiaohe@huawei.com> <20220622170627.19786-2-linmiaohe@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1656095581; a=rsa-sha256; cv=none; b=Cqic8cAKTqAZvKXuxznW9XpAG5uzVj51V8Y3N9aU88Onh4Xxg09IV8nuOMVX5gxZHaZC/F O6LT21XoQvVKD1oExpTkRyxL4/m3zss/PF8jvUe6P5ulE9spRuUBdDYzlKaPNV7Mw3aNF8 6pdtZP1387krhMP+bpT1dvM+2ydhrGc= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=nA5+j7K4; spf=pass (imf04.hostedemail.com: domain of zokeefe@google.com designates 209.85.214.174 as permitted sender) smtp.mailfrom=zokeefe@google.com; dmarc=pass (policy=reject) header.from=google.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1656095581; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=oZ+PpXvy2HxH++/ByJ0VVMt+4yKLSRLx88VrFeNzIf8=; b=Dgf9/QKoW9Fwx4IceIFT+r7ZBJPyyCsgStKDs4xOAHBQwojH6KlpyBcllaMo8HUKjk8AXX AJFupP+lilGURXTkHUPiNyYFKAiouqaijkapdmIrBsBbXKSTmu3PVBgX77cCz/AgGpeTIr 2658FQHelvvHmxXbGj6GEsRU8o1I7HA= X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 67ECE40002 Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=nA5+j7K4; spf=pass (imf04.hostedemail.com: domain of zokeefe@google.com designates 209.85.214.174 as permitted sender) smtp.mailfrom=zokeefe@google.com; dmarc=pass (policy=reject) header.from=google.com X-Rspam-User: X-Stat-Signature: mxn6abtdywpk6d5qw5r7e6rmzbdbyomi X-HE-Tag: 1656095581-855357 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 23 Jun 14:30, Muchun Song wrote: > On Thu, Jun 23, 2022 at 01:06:12AM +0800, Miaohe Lin wrote: > > ARCHes with special requirements for evicting THP backing TLB entries can > > implement flush_pmd_tlb_range. Otherwise also, it can help optimize TLB > > flush in THP regime. Using flush_pmd_tlb_range to take advantage of this > > in move_huge_pmd. > > > > Signed-off-by: Miaohe Lin > > LGTM. > > Reviewed-by: Muchun Song Reviewed-by: Zach O'Keefe