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| author | Yasunori Goto <y-goto@jp.fujitsu.com> | 2006-07-04 09:57:51 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-04 17:24:57 (GMT) |
| commit | dd8041f16b117f63f40fb844d6cdebe8b03514d2 (patch) | |
| tree | 40521ea93b2034484ceb1f16af7d47bfa1b35b6c /Documentation/initrd.txt | |
| parent | 31304c909e6945b005af62cd55a582e9c010a0b4 (diff) | |
| download | linux-dd8041f16b117f63f40fb844d6cdebe8b03514d2.tar.xz | |
[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>
Diffstat (limited to 'Documentation/initrd.txt')
0 files changed, 0 insertions, 0 deletions