sys/eventfd.h was being guarded only by a check for linux but does
not exist on older distributions like CentOS 5. Move the include
into the code that uses it and add an appropriate guard.
Signed-off-by: Matthew Fortune <matthew.fortune@imgtec.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <
6D39441BF12EF246A7ABCE6654B023536BB85DEB@hhmail02.hh.imgtec.org>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
#if defined(__linux__)
#include <poll.h>
-#include <sys/eventfd.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <sys/syscall.h>
#include <asm/types.h> /* for __u64 */
#endif
-#if defined(__linux__) && defined(__NR_userfaultfd)
+#if defined(__linux__) && defined(__NR_userfaultfd) && defined(CONFIG_EVENTFD)
+#include <sys/eventfd.h>
#include <linux/userfaultfd.h>
static bool ufd_version_check(int ufd)