path: root/COPYING
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authorYasunori Goto <y-goto@jp.fujitsu.com>2006-07-04 02:57:51 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-04 10:24:57 -0700
commitdd8041f16b117f63f40fb844d6cdebe8b03514d2 (patch)
tree40521ea93b2034484ceb1f16af7d47bfa1b35b6c /COPYING
parent[PATCH] uclinux: fix proc_task()/get_proc-task() naming (diff)
[PATCH] Fix copying of pgdat array on each node for ia64 memory hotplug
I found a bug in memory hot-add code for ia64. IA64's code has copies of pgdat's array on each node to reduce memory access over crossing node. This array is used by NODE_DATA() macro. When new node is hot-added, this pgdat's array should be updated and copied on new node too. However, I used for_each_online_node() in scatter_node_data() to copy it. This meant its array is not copied on new node. Because initialization of structures for new node was halfway, so online_node_map couldn't be set at this time. To copy arrays on new node, I changed it to check value of pgdat_list[] which is source array of copies. I tested this patch with my Memory Hotadd emulation on Tiger4. This patch is for 2.6.17-git20. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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