VFS_GETVFS(9) FreeBSD Kernel Developer's Manual 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 <
[email protected]>.
FreeBSD 14.1-RELEASE-p8 November 21, 2001 FreeBSD 14.1-RELEASE-p8