[PATCH] x86_64: Use correct PUD for memory hotadd
Memory >39bits has a different PUD.
Cc: "Tolentino, Matthew E" <matthew.e.tolentino@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index 40ed13d..675a456 100644
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -344,7 +344,7 @@
pud_t *pud;
if (after_bootmem)
- pud = pud_offset_k(pgd, __PAGE_OFFSET);
+ pud = pud_offset_k(pgd, start & PGDIR_MASK);
else
pud = alloc_low_page(&map, &pud_phys);