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x86: fix kernel_physical_mapping_init() for large x86 systems

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Fix bug in kernel_physical_mapping_init() that causes kernel
page table to be built incorrectly for systems with greater
than 512GB of memory.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jack Steiner 2008-07-16 11:11:59 -05:00 • committed by Ingo Molnar
parent 45158894d4
commit e22146e610
1 changed files with 1 additions and 1 deletions
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2
arch/x86/mm/init_64.c
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@ -644,7 +644,7 @@ static unsigned long __init kernel_physical_mapping_init(unsigned long start,
unsigned long pud_phys; unsigned long pud_phys;
pud_t *pud; pud_t *pud;
next = start + PGDIR_SIZE; next = (start + PGDIR_SIZE) & PGDIR_MASK;
if (next > end) if (next > end)
next = end; next = end;