Decode UFFDIO_* ioctls
Decode the ioctls associated with the userfaultfd fd.
Note that they tend to read from and also return result in it's data
structure.
* configure.ac (AC_CHECK_HEADERS): Add linux/userfaultfd.h.
* userfaultfd.c [HAVE_LINUX_USERFAULTFD_H]: Add ioctl decoder.
* defs.h (uffdio_ioctl): New prototype.
* ioctl.c (ioctl_decode) [HAVE_LINUX_USERFAULTFD_H]: Wire in
uffdio_ioctl.
* xlat/uffd_*.in: Create flag xlat for all the IOCTLs.
diff --git a/configure.ac b/configure.ac
index dbe52e4..7c030f8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -375,6 +375,7 @@
linux/securebits.h
linux/sem.h
linux/shm.h
+ linux/userfaultfd.h
linux/utsname.h
mqueue.h
netinet/sctp.h