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[PATCH] hot-add-mem x86_64: memory_add_physaddr_to_nid node fixup

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In cases where the acpi memory-add event does not containe the pxm (node)
infomation allow the driver to look up node info based on the address.  The
acpi_get_node call returns -1 if it can't decode the pxm info, this causes
add_memory to panic.  acpi_get_node would have to decode the resource from the
handle (a lenghty proposition).  This seems to be the cleanist point to
interject the hook.

[[email protected]: build fixes]
[[email protected]: build fixes]
Signed-off-by: Keith Mannthey <[email protected]>
Cc: KAMEZAWA Hiroyuki <[email protected]>
Cc: Andi Kleen <[email protected]>
Signed-off-by: KAMEZAWA Hiroyuki <[email protected]>
Signed-off-by: Yasunori Goto <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Keith Mannthey 2006-09-30 23:27:07 -07:00 • committed by Linus Torvalds
commit 8c2676a587
4 changed files with 25 additions and 0 deletions
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4
drivers/acpi/acpi_memhotplug.c
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@ -238,6 +238,10 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
num_enabled++;
continue;
}
if (node < 0)
node = memory_add_physaddr_to_nid(info->start_addr);
result = add_memory(node, info->start_addr, info->length);
if (result)
continue;