Manual Pages — VFS_GETVFS

NAME

vfs_getvfs – returns a mount point given its file system identifier

SYNOPSIS
DESCRIPTION
RETURN VALUES
PSEUDOCODE
SEE ALSO
AUTHORS

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;
}

AUTHORS

This manual page was written by Chad David <Mt davidc@acns.ab.ca>.

VFS_GETVFS (9)

November 21, 2001

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