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@acns.ab.ca>.