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=-14.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL 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 9E775C43461 for ; Thu, 17 Sep 2020 01:21:59 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 18B8F2076B for ; Thu, 17 Sep 2020 01:21:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="H3NEooaz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 18B8F2076B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6009C900005; Wed, 16 Sep 2020 21:21:57 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4C2E8900004; Wed, 16 Sep 2020 21:21:57 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3B575900005; Wed, 16 Sep 2020 21:21:57 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0238.hostedemail.com [216.40.44.238]) by kanga.kvack.org (Postfix) with ESMTP id 23D6F900004 for ; Wed, 16 Sep 2020 21:21:57 -0400 (EDT) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 5B9A53631 for ; Thu, 17 Sep 2020 01:21:55 +0000 (UTC) X-FDA: 77270801790.16.tree26_36078222711e Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin16.hostedemail.com (Postfix) with ESMTP id 33D48100E6903 for ; Thu, 17 Sep 2020 01:21:55 +0000 (UTC) X-HE-Tag: tree26_36078222711e X-Filterd-Recvd-Size: 2385 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by imf22.hostedemail.com (Postfix) with ESMTP for ; Thu, 17 Sep 2020 01:21:54 +0000 (UTC) Received: from linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net (linux.microsoft.com [13.77.154.182]) by linux.microsoft.com (Postfix) with ESMTPSA id BAC2F20B7178; Wed, 16 Sep 2020 18:21:53 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com BAC2F20B7178 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1600305713; bh=nkJcObrrUzxPOBpjkc201BKfzAnytpT+T4w6EejmQyA=; h=From:To:Cc:Subject:Date:From; b=H3NEooazxxwzvB4lqsq/ifViYHr5rfdrvA2yZeKpWCRNyWTYQ0jXiS36v9i1xbFRH lxaD5uu+D9ytjK+5YtXdUhEqpWQqopMv8jXHGoXFgJ+fY3K8F/K7URGhOwaloBJsWr IaCYKIa3GsUvwE98Q/fFMvwpZy85yPYSTDBVgitU= From: Vijay Balakrishna To: Andrew Morton , "Kirill A. Shutemov" , Oleg Nesterov , Song Liu , Andrea Arcangeli , Pavel Tatashin , Vijay Balakrishna , Michal Hocko , Allen Pais Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [v3 0/2] recalculate min_free_kbytes post memory hotplug Date: Wed, 16 Sep 2020 18:21:47 -0700 Message-Id: <1600305709-2319-1-git-send-email-vijayb@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 X-Rspamd-Queue-Id: 33D48100E6903 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 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: v2 -> v3 -------- [v2 1/2] - removed symptoms references from changelog [v2 2/2] - addressed following issues Michal Hocko raised: . nr_free_buffer_pages can oveflow in int on very large machines . min_free_kbytes can decrease the size theoretically v1 -> v2 -------- - addressed issue Kirill A. Shutemov raised: . changes would override min_free_kbytes set by user Vijay Balakrishna (2): mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged mm: khugepaged: avoid overriding min_free_kbytes set by user include/linux/khugepaged.h | 5 +++++ mm/khugepaged.c | 16 +++++++++++++--- mm/memory_hotplug.c | 3 +++ mm/page_alloc.c | 2 +- 4 files changed, 22 insertions(+), 4 deletions(-) -- 2.28.0