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authorYasunori Goto <y-goto@jp.fujitsu.com>2006-06-23 02:03:11 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 07:42:46 -0700
commit6811378e7d8b9aa4fca2a1ca73d24c9d67c9cb12 (patch)
tree37f2f5a2bf2e60848a571f8f43685c7406d7b238 /include
parentcca448fe92246fb59efe55ba2e048ded0971a9af (diff)
[PATCH] wait_table and zonelist initializing for memory hotadd: update zonelists
In current code, zonelist is considered to be build once, no modification. But MemoryHotplug can add new zone/pgdat. It must be updated. This patch modifies build_all_zonelists(). By this, build_all_zonelist() can reconfig pgdat's zonelists. To update them safety, this patch use stop_machine_run(). Other cpus don't touch among updating them by using it. In old version (V2 of node hotadd), kernel updated them after zone initialization. But present_page of its new zone is still 0, because online_page() is not called yet at this time. Build_zonelists() checks present_pages to find present zone. It was too early. So, I changed it after online_pages(). Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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