From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753718AbdFVTaq (ORCPT ); Thu, 22 Jun 2017 15:30:46 -0400 Received: from mail-wr0-f194.google.com ([209.85.128.194]:35992 "EHLO mail-wr0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753612AbdFVTao (ORCPT ); Thu, 22 Jun 2017 15:30:44 -0400 From: Michal Hocko To: Andrew Morton Cc: , Naoya Horiguchi , Mike Kravetz , Mel Gorman , Vlastimil Babka , LKML Subject: [PATCH 0/3] mm, hugetlb: allow proper node fallback dequeue Date: Thu, 22 Jun 2017 21:30:31 +0200 Message-Id: <20170622193034.28972-1-mhocko@kernel.org> X-Mailer: git-send-email 2.11.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, the previous version of this patchset has been sent as an RFC [1]. As it doesn't seem anybody would object I am resending and asking for merging. Original reasoning: While working on a hugetlb migration issue addressed in a separate patchset [2] I have noticed that the hugetlb allocations from the preallocated pool are quite subotimal. There is no fallback mechanism implemented and no notion of preferred node. I have tried to work around it by [4] but Vlastimil was right to push back for a more robust solution. It seems that such a solution is to reuse zonelist approach we use for the page alloctor. This series has 3 patches. The first one tries to make hugetlb allocation layers more clear. The second one implements the zonelist hugetlb pool allocation and introduces a preferred node semantic which is used by the migration callbacks. The last patch is a clean up. This is based on top of the current mmotm tree (mmotm-2017-06-16-13-59). Shortlog Michal Hocko (3): mm, hugetlb: unclutter hugetlb allocation layers hugetlb: add support for preferred node to alloc_huge_page_nodemask mm, hugetlb, soft_offline: use new_page_nodemask for soft offline migration And the diffstat looks promissing as well include/linux/hugetlb.h | 5 +- include/linux/migrate.h | 2 +- mm/hugetlb.c | 215 ++++++++++++++++-------------------------------- mm/memory-failure.c | 10 +-- 4 files changed, 75 insertions(+), 157 deletions(-) [1] http://lkml.kernel.org/r/20170613090039.14393-1-mhocko@kernel.org [2] http://lkml.kernel.org/r/20170608074553.22152-1-mhocko@kernel.org [3] http://lkml.kernel.org/r/20170608074553.22152-5-mhocko@kernel.org