Messages in this thread Patch in this message | | | Subject | [patch]x86: arch_add_memory round up address | From | Shaohua Li <> | Date | Thu, 09 Oct 2008 13:31:30 +0800 |
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Round up address to a page, otherwise the last page isn't mapped.
Signed-off-by: Shaohua Li <shaohua.li@intel.com> --- arch/x86/mm/init_64.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux/arch/x86/mm/init_64.c =================================================================== --- linux.orig/arch/x86/mm/init_64.c 2008-10-09 11:42:33.000000000 +0800 +++ linux/arch/x86/mm/init_64.c 2008-10-09 11:43:22.000000000 +0800 @@ -721,7 +721,8 @@ int arch_add_memory(int nid, u64 start, 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, + round_up(start + size-1, PAGE_SIZE)); if (last_mapped_pfn > max_pfn_mapped) max_pfn_mapped = last_mapped_pfn;
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