1 files changed, 1 insertions, 5 deletions

diff --git a/arch/ppc64/mm/hash_utils.c b/arch/ppc64/mm/hash_utils.c
index 0a0f97008d02..1647b1c6f28e 100644
--- a/arch/ppc64/mm/hash_utils.c
+++ b/arch/ppc64/mm/hash_utils.c
@@ -195,7 +195,7 @@ void __init htab_initialize(void)
                 memset((void *)table, 0, htab_size_bytes);
         }
 
-        mode_rw = _PAGE_ACCESSED | _PAGE_COHERENT | PP_RWXX;
+        mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX;
 
         /* On U3 based machines, we need to reserve the DART area and
          * _NOT_ map it to avoid cache paradoxes as it's remapped non
@@ -310,10 +310,6 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
 
                 vsid = get_vsid(mm->context.id, ea);
                 break;
-        case IO_REGION_ID:
-                mm = &ioremap_mm;
-                vsid = get_kernel_vsid(ea);
-                break;
         case VMALLOC_REGION_ID:
                 mm = &init_mm;
                 vsid = get_kernel_vsid(ea);