VCOUNT(9) BSD Kernel Developer's Manual VCOUNT(9)
NAME
vcount, count_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 dev_t rather than a struct vnode pointer as an argument.
RETURN VALUES
vcount() and count_dev() both return the number of references to the device.
SEE ALSO
VFS(9), vnode(9)
AUTHORS
This manual page was written by Andrew Stevenson.
BSD
February 6, 2001 BSD
