[#include <linux/ktime.h>],
[struct timespec64 *s;
ktime_get_coarse_real_ts64(s);])
+AC_CHECK_LINUX_FUNC([ktime_get_real_ts64],
+ [#include <linux/ktime.h>],
+ [struct timespec64 *s;
+ ktime_get_real_ts64(s);])
AC_CHECK_LINUX_FUNC([locks_lock_file_wait],
[#include <linux/fs.h>],
[locks_lock_file_wait(NULL, NULL);])