From de33b821f34dc9e2fabf81a8ba464f3ef039bd00 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Tue, 16 Oct 2007 01:26:13 -0700 Subject: [PATCH] memory unplug: ia64 interface IA64 memory unplug interface. Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/mm/init.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index a096b30734f3..947ec0c73234 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -721,7 +721,17 @@ int arch_add_memory(int nid, u64 start, u64 size) 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 -- 2.20.1