IA64 memory unplug interface.
Signed-off-by: KAMEZAWA Hiroyuki <[email protected]>
---
arch/ia64/mm/init.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
Index: linux-2.6.22-rc6-mm1/arch/ia64/mm/init.c
===================================================================
--- linux-2.6.22-rc6-mm1.orig/arch/ia64/mm/init.c
+++ linux-2.6.22-rc6-mm1/arch/ia64/mm/init.c
@@ -724,7 +724,17 @@ int arch_add_memory(int nid, u64 start,
int remove_memory(u64 start, u64 size)
{
- return -EINVAL;
+ unsigned long start_pfn, end_pfn;
+ unsigned long timeout = 120 * HZ;
+ int ret;
+ start_pfn = start >> PAGE_SHIFT;
+ end_pfn = start_pfn + (size >> PAGE_SHIFT);
+ ret = offline_pages(start_pfn, end_pfn, timeout);
+ if (ret)
+ goto out;
+ /* we can free mem_map at this point */
+out:
+ return ret;
}
EXPORT_SYMBOL_GPL(remove_memory);
#endif
-
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