Commit 60817c9b authored Oct 27, 2008 by Shaohua Li Committed by Ingo Molnar Oct 28, 2008

x86, memory hotplug: remove wrong -1 in calling init_memory_mapping()



Impact: fix crash with memory hotplug

Shuahua Li found:

| I just did some experiments on a desktop for memory hotplug and this bug
| triggered a crash in my test.
|
| Yinghai's suggestion also fixed the bug.

We don't need to round it, just remove that extra -1

Signed-off-by: Yinghai <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 3afa3949

arch/x86/mm/init_64.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -837,7 +837,7 @@ int arch_add_memory(int nid, u64 start, u64 size)
		unsigned long nr_pages = size >> PAGE_SHIFT;
		int ret;

		last_mapped_pfn = init_memory_mapping(start, start + size-1);
		last_mapped_pfn = init_memory_mapping(start, start + size);
		if (last_mapped_pfn > max_pfn_mapped)
		max_pfn_mapped = last_mapped_pfn;