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powerpc: mem_init should call memblock_is_reserved with phys_addr_t

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This has been broken for a while but hasn't been an issue until
now because nobody was reserving regions at high addresses.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Becky Bruce 2011-06-28 09:54:46 +00:00 committed by Benjamin Herrenschmidt
parent 72632ce5a4
commit 3d41e0f6d9
1 changed files with 2 additions and 1 deletions
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3
arch/powerpc/mm/mem.c
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@ -337,8 +337,9 @@ void __init mem_init(void)
highmem_mapnr = lowmem_end_addr >> PAGE_SHIFT;
for (pfn = highmem_mapnr; pfn < max_mapnr; ++pfn) {
phys_addr_t paddr = (phys_addr_t)pfn << PAGE_SHIFT;
struct page *page = pfn_to_page(pfn);
if (memblock_is_reserved(pfn << PAGE_SHIFT))
if (memblock_is_reserved(paddr))
continue;
ClearPageReserved(page);
init_page_count(page);