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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CA094C433EF for ; Wed, 11 May 2022 22:13:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235778AbiEKWNE (ORCPT ); Wed, 11 May 2022 18:13:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56222 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231897AbiEKWND (ORCPT ); Wed, 11 May 2022 18:13:03 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D0B56EC4C for ; Wed, 11 May 2022 15:13:02 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id CCEE261CC4 for ; Wed, 11 May 2022 22:13:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25276C340EE; Wed, 11 May 2022 22:13:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1652307181; bh=nf+54SJmRKuS8Re6Om3GzN9WYoEBrwUGw7yzblGzXqw=; h=Date:To:From:Subject:From; b=IXxljxj+PSU1nlUECedqqu5yDwBFjDKyN1FACRCXGE2kicQPyxBQKTVT07aiFg7Lj QQPg3XB3nAE0BU9OG+ssWFQpooWba1QMIe56H42yMSSbUVmvOXcL+7qGGnTucOrdl5 paFLFR/mZ9lOOQd52bP9Kts9qwWP0K30EbNktngg= Date: Wed, 11 May 2022 15:13:00 -0700 To: mm-commits@vger.kernel.org, vvghjk1234@gmail.com, mgorman@techsingularity.net, linmiaohe@huawei.com, ddutile@redhat.com, yamamoto.rei@jp.fujitsu.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-compaction-fast_find_migrateblock-should-return-pfn-in-the-target-zone.patch added to mm-unstable branch Message-Id: <20220511221301.25276C340EE@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm, compaction: fast_find_migrateblock() should return pfn in the target zone has been added to the -mm mm-unstable branch. Its filename is mm-compaction-fast_find_migrateblock-should-return-pfn-in-the-target-zone.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-compaction-fast_find_migrateblock-should-return-pfn-in-the-target-zone.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Rei Yamamoto Subject: mm, compaction: fast_find_migrateblock() should return pfn in the target zone Prevent returning a pfn outside the target zone in case that not aligned with pageblock boundary. Otherwise isolate_migratepages_block() would handle pages not in the target zone. Link: https://lkml.kernel.org/r/20220511044300.4069-1-yamamoto.rei@jp.fujitsu.com Signed-off-by: Rei Yamamoto Reviewed-by: Miaohe Lin Cc: Don Dutile Cc: Mel Gorman Cc: Wonhyuk Yang Cc: Rei Yamamoto Signed-off-by: Andrew Morton --- mm/compaction.c | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/compaction.c~mm-compaction-fast_find_migrateblock-should-return-pfn-in-the-target-zone +++ a/mm/compaction.c @@ -1848,6 +1848,8 @@ static unsigned long fast_find_migratebl update_fast_start_pfn(cc, free_pfn); pfn = pageblock_start_pfn(free_pfn); + if (pfn < cc->zone->zone_start_pfn) + pfn = cc->zone->zone_start_pfn; cc->fast_search_fail = 0; found_block = true; set_pageblock_skip(freepage); _ Patches currently in -mm which might be from yamamoto.rei@jp.fujitsu.com are mm-compaction-fast_find_migrateblock-should-return-pfn-in-the-target-zone.patch