The memory device has only one node id. Store the node id when
enabling the memory device, and we can reuse it when removing the
memory device.
CC: David Rientjes <rient...@google.com>
CC: Jiang Liu <liu...@gmail.com>
CC: Len Brown <len.br...@intel.com>
CC: Benjamin Herrenschmidt <b...@kernel.crashing.org>
CC: Paul Mackerras <pau...@samba.org>
CC: Christoph Lameter <c...@linux.com>
Cc: Minchan Kim <minchan....@gmail.com>
CC: Andrew Morton <a...@linux-foundation.org>
CC: KOSAKI Motohiro <kosaki.motoh...@jp.fujitsu.com>
CC: Yasuaki Ishimatsu <isimatu.yasu...@jp.fujitsu.com>
Signed-off-by: Wen Congyang <we...@cn.fujitsu.com>
---
drivers/acpi/acpi_memhotplug.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 5cafd6b..db8de39 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -84,6 +84,7 @@ struct acpi_memory_info {
struct acpi_memory_device {
struct acpi_device * device;
unsigned int state; /* State of the memory device */
+ int nid;
struct list_head res_list;
};
@@ -257,6 +258,9 @@ static int acpi_memory_enable_device(struct
acpi_memory_device *mem_device)
info->enabled = 1;
num_enabled++;
}
+
+ mem_device->nid = node;
+
if (!num_enabled) {
printk(KERN_ERR PREFIX "add_memory failed\n");
mem_device->state = MEMORY_INVALID_STATE;
@@ -463,7 +467,7 @@ static int acpi_memory_device_remove(struct acpi_device
*device, int type)
mem_device = acpi_driver_data(device);
- node = acpi_get_node(mem_device->device->handle);
+ node = mem_device->nid;
list_for_each_entry_safe(info, tmp, &mem_device->res_list, list) {
if (!info->enabled)
continue;
@@ -473,8 +477,6 @@ static int acpi_memory_device_remove(struct acpi_device
*device, int type)
if (result)
return result;
}
- if (node < 0)
- node = memory_add_physaddr_to_nid(info->start_addr);
result = remove_memory(node, info->start_addr, info->length);
if (result)
--
1.7.1
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