16 struct statfs {  struct
17 	__statfs_word f_type;  argument
18 	__statfs_word f_bsize;  argument
19 	__statfs_word f_blocks;  argument
20 	__statfs_word f_bfree;  argument
21 	__statfs_word f_bavail;  argument
22 	__statfs_word f_files;  argument
23 	__statfs_word f_ffree;  argument
25 	__statfs_word f_namelen;  argument
26 	__statfs_word f_frsize;  argument
27 	__statfs_word f_flags;  argument
28 	__statfs_word f_spare[4];  argument