this one is unused. OK ?
Index: sys/mount.h =================================================================== RCS file: /var/cvs/src/sys/sys/mount.h,v retrieving revision 1.100 diff -u -p -r1.100 mount.h --- sys/mount.h 29 Jun 2010 04:09:32 -0000 1.100 +++ sys/mount.h 4 Apr 2011 10:28:59 -0000 @@ -314,28 +314,6 @@ struct statfs { union mount_info mount_info; /* per-filesystem mount options */ }; -/* old (pre-4.3) statfs structure with mount options */ -struct o43statfs { - u_int32_t f_flags; /* copy of mount flags */ - int32_t f_bsize; /* fundamental file system block size */ - u_int32_t f_iosize; /* optimal transfer block size */ - u_int32_t f_blocks; /* total data blocks in file system */ - u_int32_t f_bfree; /* free blocks in fs */ - int32_t f_bavail; /* free blocks avail to non-superuser */ - u_int32_t f_files; /* total file nodes in file system */ - u_int32_t f_ffree; /* free file nodes in fs */ - fsid_t f_fsid; /* file system id */ - uid_t f_owner; /* user that mounted the file system */ - u_int32_t f_syncwrites; /* count of sync writes since mount */ - u_int32_t f_asyncwrites; /* count of async writes since mount */ - u_int32_t f_ctime; /* last mount [-u] time */ - u_int32_t f_spare[3]; /* spare for later */ - char f_fstypename[MFSNAMELEN]; /* fs type name */ - char f_mntonname[MNAMELEN]; /* directory on which mounted */ - char f_mntfromname[MNAMELEN]; /* mounted file system */ - union mount_info mount_info; /* per-filesystem mount options */ -}; - /* old (pre-2.6) statfs structure */ struct ostatfs { short f_type; /* type of file system (unused; zero) */