diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-10 07:16:58 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-10 07:16:58 -0800 |
| commit | 53910146dfc118d9f86eeb88775ccd6fafebb09d (patch) | |
| tree | 1fc312c78d4fc04ff64383ed5c07b6fb16346b13 | |
| parent | 5551638acb3dbfa1c92335464158fccfa46f5a00 (diff) | |
| parent | 77058e1adcc439151db41f2b84e4867a88113cd8 (diff) | |
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Fix address masking bug in hpte_need_flush()
| -rw-r--r-- | arch/powerpc/mm/tlb_hash64.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/powerpc/mm/tlb_hash64.c b/arch/powerpc/mm/tlb_hash64.c index 282d9306361..1ec06576f61 100644 --- a/arch/powerpc/mm/tlb_hash64.c +++ b/arch/powerpc/mm/tlb_hash64.c @@ -63,15 +63,21 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr, if (huge) { #ifdef CONFIG_HUGETLB_PAGE psize = get_slice_psize(mm, addr); + /* Mask the address for the correct page size */ + addr &= ~((1UL << mmu_psize_defs[psize].shift) - 1); #else BUG(); psize = pte_pagesize_index(mm, addr, pte); /* shutup gcc */ #endif - } else + } else { psize = pte_pagesize_index(mm, addr, pte); + /* Mask the address for the standard page size. If we + * have a 64k page kernel, but the hardware does not + * support 64k pages, this might be different from the + * hardware page size encoded in the slice table. */ + addr &= PAGE_MASK; + } - /* Mask the address for the correct page size */ - addr &= ~((1UL << mmu_psize_defs[psize].shift) - 1); /* Build full vaddr */ if (!is_kernel_addr(addr)) { |