diff options
Diffstat (limited to 'arch/powerpc/mm/hugetlbpage.c')
| -rw-r--r-- | arch/powerpc/mm/hugetlbpage.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index bc72e542a83e..61b8b7ccea4f 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -894,8 +894,8 @@ void flush_dcache_icache_hugepage(struct page *page) * We have 4 cases for pgds and pmds: * (1) invalid (all zeroes) * (2) pointer to next table, as normal; bottom 6 bits == 0 - * (3) leaf pte for huge page, bottom two bits != 00 - * (4) hugepd pointer, bottom two bits == 00, next 4 bits indicate size of table + * (3) leaf pte for huge page _PAGE_PTE set + * (4) hugepd pointer, _PAGE_PTE = 0 and bits [2..6] indicate size of table * * So long as we atomically load page table pointers we are safe against teardown, * we can follow the address down to the the page and take a ref on it. |