Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@xxxxxxxxxxxxxxxx>
---
drivers/acpi/acpi_memhotplug.c | 17 ++++++++++++++++-
1 files changed, 16 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index d985713..75d33cd 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -29,6 +29,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
+#include <linux/mm.h>
#include <linux/memory_hotplug.h>
#include <linux/slab.h>
#include <acpi/acpi_drivers.h>
@@ -310,7 +311,8 @@ static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
{
int result;
struct acpi_memory_info *info, *n;
-
+ int start_pfn, end_pfn;
+ struct zone *zone;
/*
* Ask the VM to offline this memory range.
@@ -321,6 +323,19 @@ static int acpi_memory_disable_device(struct acpi_memory_device *mem_device)
result = remove_memory(info->start_addr, info->length);
if (result)
return result;
+ /*
+ * Remove section mappings and sysfs entries for the
+ * section of the memory we are removing.
+ */
+
+ start_pfn = PFN_DOWN(info->start_addr);
+ end_pfn = start_pfn + PFN_DOWN(info->length);
+ zone = page_zone(pfn_to_page(start_pfn));
+ result = __remove_pages(zone, start_pfn,
+ end_pfn - start_pfn);
+ if (result)
+ return result;
+
}
kfree(info);
}
--
1.7.9
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