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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,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 EA803C3A59F for ; Thu, 29 Aug 2019 07:00:49 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id BA113233A1 for ; Thu, 29 Aug 2019 07:00:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BA113233A1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 629716B0269; Thu, 29 Aug 2019 03:00:49 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 539176B026A; Thu, 29 Aug 2019 03:00:49 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3FBED6B026B; Thu, 29 Aug 2019 03:00:49 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0040.hostedemail.com [216.40.44.40]) by kanga.kvack.org (Postfix) with ESMTP id 1C8AD6B0269 for ; Thu, 29 Aug 2019 03:00:49 -0400 (EDT) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with SMTP id B8CC9180AD802 for ; Thu, 29 Aug 2019 07:00:48 +0000 (UTC) X-FDA: 75874567776.18.kitty96_70a73672c940 X-HE-Tag: kitty96_70a73672c940 X-Filterd-Recvd-Size: 2888 Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by imf26.hostedemail.com (Postfix) with ESMTP for ; Thu, 29 Aug 2019 07:00:48 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 31A0C10C696E; Thu, 29 Aug 2019 07:00:47 +0000 (UTC) Received: from t460s.redhat.com (ovpn-117-166.ams2.redhat.com [10.36.117.166]) by smtp.corp.redhat.com (Postfix) with ESMTP id 55CBE1001B05; Thu, 29 Aug 2019 07:00:45 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, David Hildenbrand , Andrew Morton , Oscar Salvador , Michal Hocko , Pavel Tatashin , Dan Williams , Wei Yang Subject: [PATCH v3 03/11] mm/memory_hotplug: We always have a zone in find_(smallest|biggest)_section_pfn Date: Thu, 29 Aug 2019 09:00:11 +0200 Message-Id: <20190829070019.12714-4-david@redhat.com> In-Reply-To: <20190829070019.12714-1-david@redhat.com> References: <20190829070019.12714-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (mx1.redhat.com [10.5.110.65]); Thu, 29 Aug 2019 07:00:47 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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: With shrink_pgdat_span() out of the way, we now always have a valid zone. Cc: Andrew Morton Cc: Oscar Salvador Cc: David Hildenbrand Cc: Michal Hocko Cc: Pavel Tatashin Cc: Dan Williams Cc: Wei Yang Signed-off-by: David Hildenbrand --- mm/memory_hotplug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 70cd6c59c168..0a21f6f99753 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -337,7 +337,7 @@ static unsigned long find_smallest_section_pfn(int ni= d, struct zone *zone, if (unlikely(pfn_to_nid(start_pfn) !=3D nid)) continue; =20 - if (zone && zone !=3D page_zone(pfn_to_page(start_pfn))) + if (zone !=3D page_zone(pfn_to_page(start_pfn))) continue; =20 return start_pfn; @@ -362,7 +362,7 @@ static unsigned long find_biggest_section_pfn(int nid= , struct zone *zone, if (unlikely(pfn_to_nid(pfn) !=3D nid)) continue; =20 - if (zone && zone !=3D page_zone(pfn_to_page(pfn))) + if (zone !=3D page_zone(pfn_to_page(pfn))) continue; =20 return pfn; --=20 2.21.0