FFSYNC            316 kern/vfs_vnops.c 	if ((fp->f_flag & FFSYNC) ||
FFSYNC            120 sys/fcntl.h    #define	FMASK		(FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FNONBLOCK)
FFSYNC            122 sys/fcntl.h    #define	FCNTLFLAGS	(FAPPEND|FASYNC|FFSYNC|FNONBLOCK)