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

Signed-off-by: Cong Wang <amwang@redhat.com>
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 5f3368a..7df2b5e 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -838,10 +838,10 @@
 			}
 		}
 		if (page) {
-			void *mapaddr = kmap_atomic(page, KM_USER0);
+			void *mapaddr = kmap_atomic(page);
 			void *buf = mapaddr + offset;
 			offset += fuse_copy_do(cs, &buf, &count);
-			kunmap_atomic(mapaddr, KM_USER0);
+			kunmap_atomic(mapaddr);
 		} else
 			offset += fuse_copy_do(cs, NULL, &count);
 	}