md: more open-coded offset_in_page()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 81c5e1a..06d426e 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -246,7 +246,7 @@
{
dp->get_page = vm_get_page;
dp->next_page = vm_next_page;
- dp->context_u = ((unsigned long) data) & (PAGE_SIZE - 1);
+ dp->context_u = offset_in_page(data);
dp->context_ptr = data;
}
@@ -271,7 +271,7 @@
{
dp->get_page = km_get_page;
dp->next_page = km_next_page;
- dp->context_u = ((unsigned long) data) & (PAGE_SIZE - 1);
+ dp->context_u = offset_in_page(data);
dp->context_ptr = data;
}