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, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, URIBL_BLOCKED autolearn=ham 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 A88ECC004C9 for ; Tue, 7 May 2019 20:38:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 77B7220449 for ; Tue, 7 May 2019 20:38:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=intel-com.20150623.gappssmtp.com header.i=@intel-com.20150623.gappssmtp.com header.b="n2cLf9Qv" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726650AbfEGUiz (ORCPT ); Tue, 7 May 2019 16:38:55 -0400 Received: from mail-ot1-f67.google.com ([209.85.210.67]:40362 "EHLO mail-ot1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726451AbfEGUiz (ORCPT ); Tue, 7 May 2019 16:38:55 -0400 Received: by mail-ot1-f67.google.com with SMTP id w6so16295187otl.7 for ; Tue, 07 May 2019 13:38:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=6pfRHejW3cZFOE77y3IUUX4go4AGbYiRoY6juBt94WE=; b=n2cLf9QvpatFw6Fx6Im50C3lqxaAWG43jr2hC2ev1xZpfJ6J8FUzxhXEUavTl94SZm SVHlKHKIcM/ZhfovCw4MijKPgzW/E+HLz4qZ175x7tfNV+dQC05A0tETwYssL7clan9W UsEpcZNB+TJeQSbZEqorEcfiOUdbu+Sy8m9YAZ3S+el0grhl2bD78JddE66O4Q+1avuY KR225hZ12kjGn4PRHpeZLqKoFnuS+tJCq4z76VyCpIv4O/vr+Au5mfwKYyPGTxiEapDr R3GKFkX289EisuP8nBoU3VOoPxvd3l0FVJ+ulJz6IltOlc4nobKQXXstnEsx5ZFdmsTb rEdA== 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=6pfRHejW3cZFOE77y3IUUX4go4AGbYiRoY6juBt94WE=; b=ac+so5/TQEfdKrbGxUgLeXPDlmbnK21scngybYsGKmr/deAnkQl6hi9loxMCPUv4s0 jhSkojyOmEzfmcee7JPV0yQkOlK5nzq7iWSPlsW+R24j+WQgQFDgh8j/5XW4/+ND58pP aETIwrp1DXxOOhixDZQDE3amThqcjUGIL++ElBIixs/DZegITBnbyTz3WK4VDVA/oi84 wrUdVY53hJ5lyTy6BIO4VDxs9NnSVL2rKFt3X6uBhe8RgrxHZQhTAx+mueO8nUIw4mYm FIrsOVBZJ5zSAgueuZvZ8R6QIx6+gTOIUpw7boqFFNNAnCybSABst5vvQivPuw7DvUR1 6K1A== X-Gm-Message-State: APjAAAWx1hl9bCLSvde+hrrvLaDrIoOh450M7etdghN9JVjd4cUA9izA PKHEUZfLtmjLxCWxYLA1Shu+9wSAfVDyDJ/g6HrvuA== X-Google-Smtp-Source: APXvYqyoyS46mGkeS8xfe2+s5llXVwHTTrq4TjXi1ZN6I2Su0aHjvxJMNj2Psjrwn9yCamOWlD6+DD7mFrLZ6kZfD1Q= X-Received: by 2002:a9d:5cc1:: with SMTP id r1mr21322434oti.229.1557261534468; Tue, 07 May 2019 13:38:54 -0700 (PDT) MIME-Version: 1.0 References: <20190507183804.5512-1-david@redhat.com> <20190507183804.5512-2-david@redhat.com> In-Reply-To: <20190507183804.5512-2-david@redhat.com> From: Dan Williams Date: Tue, 7 May 2019 13:38:43 -0700 Message-ID: Subject: Re: [PATCH v2 1/8] mm/memory_hotplug: Simplify and fix check_hotplug_memory_range() To: David Hildenbrand Cc: Linux MM , Linux Kernel Mailing List , linux-ia64@vger.kernel.org, linuxppc-dev , linux-s390 , Linux-sh , Andrew Morton , Oscar Salvador , Michal Hocko , Pavel Tatashin , Qian Cai , Wei Yang , Arun KS , Mathieu Malaterre Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 7, 2019 at 11:38 AM David Hildenbrand wrote: > > By converting start and size to page granularity, we actually ignore > unaligned parts within a page instead of properly bailing out with an > error. > > Cc: Andrew Morton > Cc: Oscar Salvador > Cc: Michal Hocko > Cc: David Hildenbrand > Cc: Pavel Tatashin > Cc: Qian Cai > Cc: Wei Yang > Cc: Arun KS > Cc: Mathieu Malaterre > Signed-off-by: David Hildenbrand Reviewed-by: Dan Williams