Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752840Ab2HBGAs (ORCPT ); Thu, 2 Aug 2012 02:00:48 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:4504 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751982Ab2HBGAq (ORCPT ); Thu, 2 Aug 2012 02:00:46 -0400 X-IronPort-AV: E=Sophos;i="4.77,698,1336320000"; d="scan'208";a="5534616" From: Lai Jiangshan To: Mel Gorman , linux-kernel@vger.kernel.org Cc: Lai Jiangshan Subject: [RFC PATCH 00/23 V2] memory,numa: introduce MOVABLE-dedicated node and online_movable for hotplug Date: Thu, 2 Aug 2012 14:01:05 +0800 Message-Id: <1343887288-8866-1-git-send-email-laijs@cn.fujitsu.com> X-Mailer: git-send-email 1.7.4.4 X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/08/02 14:01:15, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/08/02 14:01:15, Serialize complete at 2012/08/02 14:01:15 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4546 Lines: 108 A) Introduction: This patchset adds MOVABLE-dedicated node and online_movable for memory-management. It is used for anti-fragmentation(hugepage, big-order allocation...), hot-removal-of-memory(virtualization, power-conserve, move memory between systems to make better utilities of memories). B) changed from V1: The original V1 patchset of MOVABLE-dedicated node is here: http://comments.gmane.org/gmane.linux.kernel.mm/78122 The new V2 adds N_MEMORY and a notion of "MOVABLE-dedicated node". And fix some related problems. The orignal V1 patchset of "add online_movable" is here: https://lkml.org/lkml/2012/7/4/145 The new V2 discards the MIGRATE_HOTREMOVE approach, and use a more straight implementation(only 1 patch). C) User Interface: When users(big system manager) need config some node/memory as MOVABLE: 1 Use kernelcore_max_addr=XX when boot 2 Use movable_online hotplug action when running We may introduce some more convenient interface, such as movable_node=NODE_LIST boot option. D) Patches Patch1 introduce N_MEMORY Patch2-13 use N_MEMORY instead N_HIGH_MEMORY. The patches are separated by subsystem, *these conversions was(must be) checked carefully*. Patch13 also changes the node_states initialization Patch14,15,17 Fix problems of the current code.(all related with hotplug) Patch18 Add config to allow MOVABLE-dedicated node Patch19-22 Add kernelcore_max_addr Patch23 Add online_movable Lai Jiangshan (19): node_states: introduce N_MEMORY cpuset: use N_MEMORY instead N_HIGH_MEMORY procfs: use N_MEMORY instead N_HIGH_MEMORY oom: use N_MEMORY instead N_HIGH_MEMORY mm,migrate: use N_MEMORY instead N_HIGH_MEMORY mempolicy: use N_MEMORY instead N_HIGH_MEMORY memcontrol: use N_MEMORY instead N_HIGH_MEMORY hugetlb: use N_MEMORY instead N_HIGH_MEMORY vmstat: use N_MEMORY instead N_HIGH_MEMORY kthread: use N_MEMORY instead N_HIGH_MEMORY init: use N_MEMORY instead N_HIGH_MEMORY vmscan: use N_MEMORY instead N_HIGH_MEMORY page_alloc: use N_MEMORY instead N_HIGH_MEMORY and change the node_states initialization slub, hotplug: ignore unrelated node's hot-adding and hot-removing memory_hotplug: fix missing nodemask management numa: add CONFIG_MOVABLE_NODE for movable-dedicated node page_alloc.c: don't subtract unrelated memmap from zone's present pages page_alloc: add kernelcore_max_addr mm, memory-hotplug: add online_movable Yasuaki Ishimatsu (4): x86: get pg_data_t's memory from other node x86: use memblock_set_current_limit() to set memblock.current_limit memblock: limit memory address from memblock memblock: compare current_limit with end variable at memblock_find_in_range_node() Documentation/cgroups/cpusets.txt | 2 +- Documentation/kernel-parameters.txt | 9 +++ Documentation/memory-hotplug.txt | 16 ++++- arch/x86/kernel/setup.c | 4 +- arch/x86/mm/init_64.c | 4 +- arch/x86/mm/numa.c | 8 ++- drivers/base/memory.c | 19 +++-- drivers/base/node.c | 8 ++- fs/proc/kcore.c | 2 +- fs/proc/task_mmu.c | 4 +- include/linux/cpuset.h | 2 +- include/linux/memblock.h | 1 + include/linux/memory_hotplug.h | 13 +++- include/linux/nodemask.h | 5 ++ init/main.c | 2 +- kernel/cpuset.c | 32 ++++---- kernel/kthread.c | 2 +- mm/Kconfig | 8 ++ mm/hugetlb.c | 24 +++--- mm/memblock.c | 10 ++- mm/memcontrol.c | 18 +++--- mm/memory_hotplug.c | 137 ++++++++++++++++++++++++++++++++--- mm/mempolicy.c | 12 ++-- mm/migrate.c | 2 +- mm/oom_kill.c | 2 +- mm/page_alloc.c | 96 +++++++++++++++---------- mm/page_cgroup.c | 2 +- mm/slub.c | 6 ++ mm/vmscan.c | 4 +- mm/vmstat.c | 4 +- 30 files changed, 335 insertions(+), 123 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/