VREF(9) OpenBSD Kernel Manual VREF(9)NAME
vref - increment the use count for a vnode
SYNOPSIS
#include <sys/param.h>
#include <sys/vnode.h>
void
vref(struct vnode *vp);
DESCRIPTION
Increment the v_usecount field of the vnode specified by vp.
Each vnode maintains a reference count of how many parts of the system
are using the vnode. This allows the system to detect when a vnode is no
longer being used and can be safely recycled for a different file.
Any code in the system which uses a vnode (e.g. during the operation of
some algorithm or to store in a data structure) should call vref().
SEE ALSOvget(9), vnode(9), vput(9), vrele(9)AUTHORS
This man page was originally written by Doug Rabson for FreeBSD.
OpenBSD 4.9 October 28, 2010 OpenBSD 4.9