From: Xishi Qiu <qiuxi...@huawei.com> online_pages() does build_all_zonelists() and zone_pcp_update(), I think offline_pages() should do it too. The node has no memory to allocate, so remove this node's zones form other nodes' zonelists.
Signed-off-by: Xishi Qiu <qiuxi...@huawei.com> --- mm/memory_hotplug.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index bc7e7a2..5172bd4 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -979,7 +979,11 @@ repeat: if (!node_present_pages(node)) { node_clear_state(node, N_HIGH_MEMORY); kswapd_stop(node); - } + mutex_lock(&zonelists_mutex); + build_all_zonelists(NODE_DATA(node), NULL); + mutex_unlock(&zonelists_mutex); + } else + zone_pcp_update(zone); vm_total_pages = nr_free_pagecache_pages(); writeback_set_ratelimit(); -- 1.7.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/