From e4c031b4f2515e9531d71c8aa779799231dbcd0c Mon Sep 17 00:00:00 2001 From: Jan Glauber Date: Wed, 20 Apr 2011 10:15:32 +0200 Subject: [PATCH] [S390] fix page table walk for changing page attributes The page table walk for changing page attributes used the wrong address for pgd/pud/pmd lookups if the range was bigger than a pmd entry. Fix the lookup by using the correct address. Signed-off-by: Jan Glauber Signed-off-by: Martin Schwidefsky --- arch/s390/mm/pageattr.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c index 122ffbd08ce0..0607e4b14b27 100644 --- a/arch/s390/mm/pageattr.c +++ b/arch/s390/mm/pageattr.c @@ -24,12 +24,13 @@ static void change_page_attr(unsigned long addr, int numpages, WARN_ON_ONCE(1); continue; } - ptep = pte_offset_kernel(pmdp, addr + i * PAGE_SIZE); + ptep = pte_offset_kernel(pmdp, addr); pte = *ptep; pte = set(pte); - ptep_invalidate(&init_mm, addr + i * PAGE_SIZE, ptep); + ptep_invalidate(&init_mm, addr, ptep); *ptep = pte; + addr += PAGE_SIZE; } }