reiserfs: remove the second argument of k[un]map_atomic()

Signed-off-by: Cong Wang <amwang@redhat.com>
diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
index d7f6e51..8f546bd 100644
--- a/fs/reiserfs/tail_conversion.c
+++ b/fs/reiserfs/tail_conversion.c
@@ -128,9 +128,9 @@
 	if (up_to_date_bh) {
 		unsigned pgoff =
 		    (tail_offset + total_tail - 1) & (PAGE_CACHE_SIZE - 1);
-		char *kaddr = kmap_atomic(up_to_date_bh->b_page, KM_USER0);
+		char *kaddr = kmap_atomic(up_to_date_bh->b_page);
 		memset(kaddr + pgoff, 0, blk_size - total_tail);
-		kunmap_atomic(kaddr, KM_USER0);
+		kunmap_atomic(kaddr);
 	}
 
 	REISERFS_I(inode)->i_first_direct_byte = U32_MAX;