xref: /freebsd/share/man/man9/VFS_VGET.9 (revision 22cf89c938886d14f5796fc49f9f020c23ea8eaf)
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29.Dd January 7, 2005
30.Dt VFS_VGET 9
31.Os
32.Sh NAME
33.Nm VFS_VGET
34.Nd convert an inode number to a vnode
35.Sh SYNOPSIS
36.In sys/param.h
37.In sys/mount.h
38.In sys/vnode.h
39.Ft int
40.Fn VFS_VGET "struct mount *mp" "ino_t ino" "int flags" "struct vnode **vpp"
41.Sh DESCRIPTION
42The
43.Fn VFS_VGET
44looks up or creates a vnode from a (mount, inode#) tuple.
45.Pp
46Its arguments are:
47.Bl -tag -width ".Fa flags"
48.It Fa mp
49The mount point.
50.It Fa ino
51The inode representing the file.
52This is a unique number assigned by the file system when vnodes are first
53created.
54.It Fa flags
55Additional locking flags to pass through to
56.Xr vget 9 .
57.It Fa vpp
58Return parameter for the vnode.
59.El
60.Pp
61This is an optional file system entry-point for file systems mainly
62intended for NFS server use, but many file systems
63use it internally in
64.Xr VOP_LOOKUP 9
65and similar.
66.Pp
67If the file system does not support this call, then it should return
68.Er EOPNOTSUPP .
69.Pp
70Please see
71.Fn ffs_vget
72in
73.Pa sys/ufs/ffs/ffs_vfsops.c
74for the canonical example.
75.Sh SEE ALSO
76.Xr VFS 9 ,
77.Xr vget 9 ,
78.Xr vnode 9
79.Sh AUTHORS
80This manual page was written by
81.An Doug Rabson .
82