FAN_NONBLOCK      292 src/readahead/readahead-collect.c         fanotify_fd = fanotify_init(FAN_CLOEXEC|FAN_NONBLOCK, O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_NOATIME);
FAN_NONBLOCK       28 src/shared/linux/fanotify.h #define FAN_ALL_INIT_FLAGS	(FAN_CLOEXEC | FAN_NONBLOCK)