From: Yasunori Goto Date: Fri, 23 Jun 2006 09:03:11 +0000 (-0700) Subject: [PATCH] wait_table and zonelist initializing for memory hotadd: update zonelists X-Git-Tag: v2.6.18-rc1~1081^2~203 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6811378e7d8b9aa4fca2a1ca73d24c9d67c9cb12;p=pandora-kernel.git [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 Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Reading git-diff-tree failed