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

Signed-off-by: Cong Wang <amwang@redhat.com>
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 4a199fd..a841868 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1887,11 +1887,11 @@
 		    in_iovs + out_iovs > FUSE_IOCTL_MAX_IOV)
 			goto out;
 
-		vaddr = kmap_atomic(pages[0], KM_USER0);
+		vaddr = kmap_atomic(pages[0]);
 		err = fuse_copy_ioctl_iovec(fc, iov_page, vaddr,
 					    transferred, in_iovs + out_iovs,
 					    (flags & FUSE_IOCTL_COMPAT) != 0);
-		kunmap_atomic(vaddr, KM_USER0);
+		kunmap_atomic(vaddr);
 		if (err)
 			goto out;