diff --git a/man2/ioctl_userfaultfd.2 b/man2/ioctl_userfaultfd.2
index 66fbfdcef..78abc4d6b 100644
--- a/man2/ioctl_userfaultfd.2
+++ b/man2/ioctl_userfaultfd.2
@@ -169,11 +169,15 @@ field was not zero.
 (Since Linux 4.3.)
 Register a memory address range with the userfaultfd object.
 The pages in the range must be "compatible".
-In the current implementation,
-.\" According to Mike Rapoport, this will change in Linux 4.11.
+
+Up to Linux kernel 4.11,
 only private anonymous ranges are compatible for registering with
 .BR UFFDIO_REGISTER .
 
+Since Linux 4.11,
+hugetlbfs and shared memory ranges are also compatible with
+.BR UFFDIO_REGISTER .
+
 The
 .I argp
 argument is a pointer to a