Messages in this thread Patch in this message | | | Subject | Please pull git390 'for-linus' branch | From | Martin Schwidefsky <> | Date | Tue, 08 Jul 2008 12:20:40 +0200 |
| |
Please pull from 'for-linus' branch of
git://git390.osdl.marist.edu/pub/scm/linux-2.6.git for-linus
to receive the following updates:
include/asm-s390/pgtable.h | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-)
Nick Piggin (1): [S390] protect _PAGE_SPECIAL bit against mprotect
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index c7f4f8e..bd0ea19 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h @@ -223,6 +223,9 @@ extern char empty_zero_page[PAGE_SIZE]; #define _PAGE_SPECIAL 0x004 /* SW associated with special page */ #define __HAVE_ARCH_PTE_SPECIAL +/* Set of bits not changed in pte_modify */ +#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_SPECIAL) + /* Six different types of pages. */ #define _PAGE_TYPE_EMPTY 0x400 #define _PAGE_TYPE_NONE 0x401 @@ -681,7 +684,7 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt */ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { - pte_val(pte) &= PAGE_MASK; + pte_val(pte) &= _PAGE_CHG_MASK; pte_val(pte) |= pgprot_val(newprot); return pte; }
| |