This regression has been introduced in
commit
f56f821feb7b36223f309e0ec05986bb137ce418
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun Mar 25 19:47:41 2012 +0200
mm: extend prefault helpers to fault in more than PAGE_SIZE
I have failed to notice this because x86 asm seems to happily compile
things as-is.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
static inline int fault_in_multipages_writeable(char __user *uaddr, int size)
{
int ret;
static inline int fault_in_multipages_writeable(char __user *uaddr, int size)
{
int ret;
- const char __user *end = uaddr + size - 1;
+ char __user *end = uaddr + size - 1;
if (unlikely(size == 0))
return 0;
if (unlikely(size == 0))
return 0;