memory-hotplug: build zonelists when offlining pages
authorXishi Qiu <qiuxishi@huawei.com>
Mon, 8 Oct 2012 23:31:51 +0000 (16:31 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 9 Oct 2012 07:22:43 +0000 (16:22 +0900)
commit1e8537baacd59e96bbe5f8d3d32feafd11f509fe
tree43c06a9d398687ef2c7225ab1af0ae8ed4e24676
parent38a76013ad809beb0b52f60d365c960d035bd83c
memory-hotplug: build zonelists when offlining pages

online_pages() does build_all_zonelists() and zone_pcp_update(), I think
offline_pages() should do it too.

When the zone has no memory to allocate, remove it from other nodes'
zonelists.  zone_batchsize() depends on zone's present pages, if zone's
present pages are changed, zone's pcp should be updated.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/memory_hotplug.c