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=-3.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 C5292CA9EC5 for ; Wed, 30 Oct 2019 15:22:10 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 811562087F for ; Wed, 30 Oct 2019 15:22:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=soleen.com header.i=@soleen.com header.b="EsBv0Dhf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 811562087F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=soleen.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 53DCE6B027C; Wed, 30 Oct 2019 11:22:09 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4ED176B027D; Wed, 30 Oct 2019 11:22:09 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 42C456B027E; Wed, 30 Oct 2019 11:22:09 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0215.hostedemail.com [216.40.44.215]) by kanga.kvack.org (Postfix) with ESMTP id 216086B027C for ; Wed, 30 Oct 2019 11:22:09 -0400 (EDT) Received: from smtpin15.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with SMTP id C222A181AEF1D for ; Wed, 30 Oct 2019 15:22:08 +0000 (UTC) X-FDA: 76100816736.15.twig86_8712296e16627 X-HE-Tag: twig86_8712296e16627 X-Filterd-Recvd-Size: 3175 Received: from mail-ed1-f67.google.com (mail-ed1-f67.google.com [209.85.208.67]) by imf07.hostedemail.com (Postfix) with ESMTP for ; Wed, 30 Oct 2019 15:22:08 +0000 (UTC) Received: by mail-ed1-f67.google.com with SMTP id a21so2053661edj.8 for ; Wed, 30 Oct 2019 08:22:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soleen.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=HvMNKSCrNMxtROTkfOzlYhe7iouX9dJL649o/i6yCrk=; b=EsBv0DhfbRnsI0WEmZMkwydFvbWFPsRbbEbAZtBPdh9M083h/c5NSHWDtPHC75mpyi 38XxlW39llSU8Ey7FQ3jEGYG3AJ4j39pFedtJGqpBXXE7G60UbKP/Vgay8/DWkhOK9ca ppA9WpqjfIpe0BN7xKE16kev55IHzH0ZowCMFiN0NOAiBU3s85SiaXzh10AgadtBLV92 LMVZPV5pJ36JH6+CSwu+4r8Ib5OyjjmdR1NTiM+El6cGes9BHX+eeX0qHGRG/895/rrc XQb4s25qvWM6DoKEUtF/1vNKC6O9qHdO+iR7/YajL7kT0OZbHeeeuJ++73oS8loCcolq ZxcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=HvMNKSCrNMxtROTkfOzlYhe7iouX9dJL649o/i6yCrk=; b=du+Kiah9SgNSPNkbBhOwlcJna9/K8E5XeSOpeNoY3TmbuwjBI/qA7jPe6dJiYO5hP1 RaaA9puOK1K/zfSBTtJP6TMZhfmmC0RFgTETpCwx5Od+lOexTJsLP/1C6BNaoymnFTz9 GCuyObivepIfU1jE27vn9xWoeNM8bb1lun/e81MmcKTgTnyT76IYFz2yh40B6VF9zlDQ WZiXMFB7aDzoZH8g6sQhmggCUpbry6BUvzIJoG7ySZ1xL2bZlWipCQajNox0qDxb5iUZ ghzeyw5Dk8AFhzrfmViSc8LzpkIeVXJQ43BVK7cNTMnU5N0Vijz3ATA26JjqpsNibFJr r6kg== X-Gm-Message-State: APjAAAWV7TrOHwh76oYTT9ZNTMo0/wlrvNng/xa55EPJU/WuYqnAgKMj kt5HZGLaSQhmMJeIO9xrZX0eTD3xpZks+vnksij8Zw== X-Google-Smtp-Source: APXvYqxkf+B29MLZi9AVfIHKME6DTKtd6/WLRp0HEHJrp2xexHMw3qaJaeHTNMiTJ6l3DYnaI0D3OibgfJIzJo6C3zo= X-Received: by 2002:a17:906:b2c1:: with SMTP id cf1mr7523ejb.155.1572448926920; Wed, 30 Oct 2019 08:22:06 -0700 (PDT) MIME-Version: 1.0 References: <20191030131122.8256-1-vincent.whitchurch@axis.com> In-Reply-To: <20191030131122.8256-1-vincent.whitchurch@axis.com> From: Pavel Tatashin Date: Wed, 30 Oct 2019 11:21:56 -0400 Message-ID: Subject: Re: [PATCH] mm/sparse: Consistently do not zero memmap To: Vincent Whitchurch Cc: Andrew Morton , Oscar Salvador , Michal Hocko , Pavel Tatashin , linux-mm , LKML , Vincent Whitchurch Content-Type: text/plain; charset="UTF-8" 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: > (I noticed this because on my ARM64 platform, with 1 GiB of memory the > first [and only] section is allocated from the zeroing path while with > 2 GiB of memory the first 1 GiB section is allocated from the > non-zeroing path.) > > Signed-off-by: Vincent Whitchurch LGTM, Thank you! Reviewed-by: Pavel Tatashin