VFS_VGET (9)

Leading comments

Copyright (c) 1996 Doug Rabson

All rights reserved.

This program is free software.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in...

(The comments found at the beginning of the groff file "man9/VFS_VGET.9freebsd".)

NAME

VFS_VGET - convert an inode number to a vnode

SYNOPSIS

In sys/param.h In sys/mount.h In sys/vnode.h Ft int Fn VFS_VGET struct mount *mp ino_t ino int flags struct vnode **vpp

DESCRIPTION

The Fn VFS_VGET looks up or creates a vnode from a (mount, inode#) tuple.

Its arguments are:

Fa mp

The mount point.

Fa ino

The inode representing the file. This is a unique number assigned by the file system when vnodes are first created.

Fa flags

Additional locking flags to pass through to vget(9).

Fa vpp

Return parameter for the vnode.

This is an optional file system entry-point for file systems mainly intended for NFS server use, but many file systems use it internally in VOP_LOOKUP9 and similar.

If the file system does not support this call, then it should return Er EOPNOTSUPP .

Please see Fn ffs_vget in sys/ufs/ffs/ffs_vfsops.c for the canonical example.

SEE ALSO

VFS(9), vget(9), vnode(9)

AUTHORS

This manual page was written by An Doug Rabson .