NAME¶
VFS_FHTOVP
—
turn an NFS filehandle into a vnode
SYNOPSIS¶
#include
<sys/param.h>
#include
<sys/mount.h>
#include
<sys/vnode.h>
int
VFS_FHTOVP
(
struct
mount *mp,
struct fid *fhp,
struct vnode
**vpp);
DESCRIPTION¶
The
VFS_FHTOVP
() macro is used by the NFS
server to turn an NFS filehandle into a vnode.
The arguments it expects are:
- mp
- The file system.
- fhp
- The filehandle to convert.
- vpp
- Return parameter for the new locked vnode.
The contents of the filehandle are defined by the file system and are not
examined by any other part of the system. It should contain enough information
to uniquely identify a file within the file system as well as noticing when a
file has been removed and the file system resources have been reused for a new
file. For instance, UFS file system stores the inode number and inode
generation counter in its filehandle.
A call to
VFS_FHTOVP
() should generally be
preceded by a call to
VFS_CHECKEXP(9) to check if
the file is accessible to the client.
RETURN VALUES¶
The locked vnode for the file will be returned in
*vpp.
SEE ALSO¶
VFS(9),
VFS_CHECKEXP(9),
VOP_VPTOFH(9),
vnode(9)
AUTHORS¶
This manual page was written by
Doug
Rabson.