membarrier selftest issue

[Mathieu Desnoyers <mathieu.desnoyers@efficios.com>]

Hi,

The updated membarrier tree:
https://github.com/compudj/linux-dev
branch: sys-membarrier-volatile

has an issue building selftests (make -C tools/testing/selftests)

It appears that including linux/membarrier.h from those userspace
tests now fails (as of 4.1-rc8). Of course, my system does not have
the updated userspace headers installed. What is the right course
of action there ?

[...]
gcc -I../../../../usr/include/    kcmp_test.c   -o kcmp_test
kcmp_test.c:13:24: fatal error: linux/kcmp.h: No such file or directory
 #include <linux/kcmp.h>
                        ^
compilation terminated.
make[1]: *** [kcmp_test] Error 1
make[1]: Leaving directory `/home/efficios/git/linux-dev/tools/testing/selftests/kcmp'
make[1]: Entering directory `/home/efficios/git/linux-dev/tools/testing/selftests/membarrier'
gcc -g -I../../../../usr/include/ membarrier_test.c -o membarrier_test
membarrier_test.c:4:30: fatal error: linux/membarrier.h: No such file or directory
 #include <linux/membarrier.h>
                              ^
compilation terminated.
make[1]: *** [all] Error 1
make[1]: Leaving directory `/home/efficios/git/linux-dev/tools/testing/selftests/membarrier'
make[1]: Entering directory `/home/efficios/git/linux-dev/tools/testing/selftests/memfd'
gcc -D_FILE_OFFSET_BITS=64 -I../../../../include/uapi/ -I../../../../include/ -I../../../../usr/include/ memfd_test.c -o memfd_test
memfd_test.c: In function ‘sys_memfd_create’:
memfd_test.c:26:17: error: ‘__NR_memfd_create’ undeclared (first use in this function)
  return syscall(__NR_memfd_create, name, flags);
                 ^
memfd_test.c:26:17: note: each undeclared identifier is reported only once for each function it appears

Thanks,

Mathieu

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com