[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 <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index 122ffbd..0607e4b 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -24,12 +24,13 @@
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;
}
}