[RFC PATCH V6 04/19] memory-hotplug: offline and remove memory when removing the memory device
Vasilis Liaskovitis
vasilis.liaskovitis at profitbricks.com
Fri Aug 10 01:41:04 EST 2012
Hi,
> We should offline and remove memory when removing the memory device.
> The memory device can be removed by 2 ways:
> 1. send eject request by SCI
> 2. echo 1 >/sys/bus/pci/devices/PNP0C80:XX/eject
>
[snip]
> +
> +static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
> +{
> + int result;
> +
> + /*
> + * Ask the VM to offline this memory range.
> + * Note: Assume that this function returns zero on success
> + */
> + result = acpi_memory_device_remove_memory(mem_device);
> +
here we should check the result of acpi_memory_device_remove_memory()
and not continue if it failed.
> /* Power-off and eject the device */
> result = acpi_memory_powerdown_device(mem_device);
> if (result) {
thanks,
- Vasilis
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