vcountcount_dev
- get total number of references to a device
SYNOPSIS
#include <sys/param.h>
#include <sys/time.h>
#include <sys/conf.h>
#include <sys/vnode.h> int
vcount (struct vnode *vp); int
count_dev (dev_t dev);
DESCRIPTION
vcount ();
is used to get the number of references to a particular device.
It allows for the fact that multiple vnodes may reference the same device.
count_dev ();
does the same thing as
vcount (,);
but takes a
Vt dev_t
rather than a
Vt struct vnode
pointer as an argument.
RETURN VALUES
vcount ();
and
count_dev ();
both return the number of references to the device.
