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=-0.9 required=3.0 tests=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 E611FC33CB3 for ; Fri, 17 Jan 2020 13:30:30 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id AD80F2073A for ; Fri, 17 Jan 2020 13:30:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="WwRUF9vK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AD80F2073A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lca.pw Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 206436B049F; Fri, 17 Jan 2020 08:30:30 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 1B6476B04A0; Fri, 17 Jan 2020 08:30:30 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0F4956B04A1; Fri, 17 Jan 2020 08:30:30 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0129.hostedemail.com [216.40.44.129]) by kanga.kvack.org (Postfix) with ESMTP id EF01E6B049F for ; Fri, 17 Jan 2020 08:30:29 -0500 (EST) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with SMTP id AA68E8248047 for ; Fri, 17 Jan 2020 13:30:29 +0000 (UTC) X-FDA: 76387210578.27.tail80_78b0a93609337 X-HE-Tag: tail80_78b0a93609337 X-Filterd-Recvd-Size: 3363 Received: from mail-qk1-f174.google.com (mail-qk1-f174.google.com [209.85.222.174]) by imf11.hostedemail.com (Postfix) with ESMTP for ; Fri, 17 Jan 2020 13:30:29 +0000 (UTC) Received: by mail-qk1-f174.google.com with SMTP id z14so22632812qkg.9 for ; Fri, 17 Jan 2020 05:30:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=U4/RhVLZS3DfSJ3cg9+WjUoTzOlLIbTI9zPCVAjn1nY=; b=WwRUF9vKt/5s/PIHYqrzuoQMr2a8YirD708F+kCBoHzuyHxGQbvciWODf9JXNvicud fqkP5IagKLSw36fHs65g0Fuc+OBpucXWd0khkY0AI6jOJOaB2wCwCz+Fem2Dxod2uAOF 7DqLsEJ0gJGCKrTJ1dZ5pI5Z+1GLrrAKe1wYPDFdTrrQDKYdNeRC8Udk9m0cvmXuhZoH gitDSWd2DQbEKfWmn+/wi5caB9h9sCIjcwUX5lfPy+BRMxU+eA9KRNN0i8RazrzcxYAj SgGSUMOXtda41CAn75tZhLeh2/If/6LK07j7rx65Jk9ahagGfAX1JfzmuLeHrI2//Zs+ UyLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:date:message-id:references:cc:in-reply-to:to; bh=U4/RhVLZS3DfSJ3cg9+WjUoTzOlLIbTI9zPCVAjn1nY=; b=Dk6sj9IlxN+1MoeqLJWJgjsLZuPbksuxC8idyd8w85HhLb2jtQ2aotbXhbLFQKGGRn 3fZfuowwxVvKWvTCKRXpdjPwsqBtZc/gwZJeDmDBQkX/zqAQWxFJJiygzIaXrkezGWvS S2j7R8XBpmugmkPF8WP0PdG20ZO5VQ3NKkpWhHTq7iw7JxZK5n1gPSoJKJ0I5EVgORcd P0onMUWuhy/tvFUobn+JtSEI5lDrhc+rrKOhHo3IPDHaP/AHzHFsmvFO57/BW5RIJ4Ma JMvjMCc8FyiunG/soZnrX7WVZ04Nb/Z3jQZAPfCB7yoBUw+uDO6TJVfdfmQ1ey3uf4rU HmCw== X-Gm-Message-State: APjAAAVLX02NVlJpSvFCP8Tx7290mfGdQvgNmudXCAcUi84JzbZqOqgO mek+Wfpk5MhKQKO+aKyaeoYiAg== X-Google-Smtp-Source: APXvYqylfHOqkWU3ftpd4sx7sBeSiuzylqb2aIYlnoIXhgDLdJTrg4fN/JqIAWiMZCi38UjMkMiwVQ== X-Received: by 2002:a37:7005:: with SMTP id l5mr36899936qkc.334.1579267828641; Fri, 17 Jan 2020 05:30:28 -0800 (PST) Received: from ?IPv6:2600:1000:b029:6649:b819:fcc3:734e:5994? ([2600:1000:b029:6649:b819:fcc3:734e:5994]) by smtp.gmail.com with ESMTPSA id v4sm12909646qtd.24.2020.01.17.05.30.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 17 Jan 2020 05:30:26 -0800 (PST) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Qian Cai Mime-Version: 1.0 (1.0) Subject: Re: [PATCH -next v4] mm/hotplug: silence a lockdep splat with printk() Date: Fri, 17 Jan 2020 08:30:24 -0500 Message-Id: References: <6f924bf7-835b-0176-1b12-aff4f1f4be0e@redhat.com> Cc: akpm@linux-foundation.org, mhocko@kernel.org, sergey.senozhatsky.work@gmail.com, pmladek@suse.com, rostedt@goodmis.org, peterz@infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Michal Hocko In-Reply-To: <6f924bf7-835b-0176-1b12-aff4f1f4be0e@redhat.com> To: David Hildenbrand X-Mailer: iPhone Mail (17C54) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000004, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: > On Jan 17, 2020, at 7:53 AM, David Hildenbrand wrote: > > Can't we just use the zone_idx() stored in the memmap instead? I am having a hard time to guess what that means. Care to elaborate?