VOP_LINK(9) create a new name for a file

SYNOPSIS

In sys/param.h In sys/vnode.h Ft int Fn VOP_LINK struct vnode *dvp struct vnode *vp struct componentname *cnp

DESCRIPTION

This links a new name in the specified directory to an existing file.

Its arguments are:

Fa dvp
The vnode of the directory.
Fa vp
The vnode of the file to be linked.
Fa cnp
Pathname information about the file.

The pathname info should not be released on exit because it is done by the caller. The directory and file vnodes should not be released on exit.

LOCKS

Fn VOP_LINK expects the directory and file vnodes to be locked on entry and will leave the vnodes locked on return.

RETURN VALUES

Zero is returned if the file was linked successfully, otherwise an error is returned.

ERRORS

Bq Er EMLINK
The file has too many links.
Bq Er EPERM
The file is immutable.
Bq Er EXDEV
A hard link is not possible between different file systems.

AUTHORS

This manual page was originally written by An Doug Rabson .