vfs_getvfs(9)

NAME

vfs_getvfs - returns a mount point given its file system

identifier

SYNOPSIS

#include <sys/param.h>
#include <sys/mount.h>
struct mount *
vfs_getvfs(fsid_t *fsid);

DESCRIPTION

The vfs_getvfs() function returns the mount point structure

for a file
system given its file system identifier. The file system ID

should have
been allocated by calling vfs_getnewfsid(9); otherwise, it

will not be
found.

A major user of vfs_getvfs() is NFS, which uses the fsid as

part of file
handles in order to determine the file system a given RPC is

for. If
vfs_getvfs() fails to find the mount point related to fsid,

the file system is considered stale.

RETURN VALUES

If fsid is found, the mount point for the ID is returned;

otherwise, NULL
is returned.

PSEUDOCODE

if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) {

error = ESTALE;
goto out;

}

SEE ALSO

vfs_getnewfsid(9)

AUTHORS

This manual page was written by Chad David <davidc@ac

ns.ab.ca>.

BSD November 21, 2001

BSD