Provided by: freebsd-manpages_6.2-1_all
VFS_STATFS - return file system status
VFS_STATFS(struct mount *mp, struct statfs *sbp, struct thread *td);
The VFS_STATFS() macro returns various pieces of information about the
file system, including recommended I/O sizes, free space, free inodes,
The arguments it expects are:
mp The file system.
sbp A statfs structure, as defined by into which information is placed
about the file system.
td The thread which is querying the file system.
The fields of struct statfs related to the file system are as follows:
f_type Type of file system.
f_flags A copy of mount exported flags.
f_bsize Fragment size.
f_iosize Optimal transfer block size.
f_blocks The total number of data blocks in the file system.
f_bfree The number of free blocks in the file system.
f_bavail The number of free blocks available to non-superuser
f_files The total number of file nodes in the file system.
f_ffree The number of free nodes available to non-superuser
f_syncwrites The number of synchronous writes since the file system was
f_asyncwrites The number of asynchronous writes since the file system
f_syncreads The number of synchronous reads since the file system was
f_asyncreads The number of asynchronous reads since the file system was
f_namemax The maximum file name length for this file system.
f_owner The user ID of the user that mounted the file system.
f_fsid Unique file system ID.
f_fstypename The file system type name; a string of at most MFSNAMELEN
f_mntfromname The device name the file system was mounted from; a string
of at most MNAMELEN bytes.
f_mntonname The name of the directory on which the file system is
mounted; a string of at most MNAMELEN bytes.
This manual page was written by Doug Rabson.