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(struct cdev *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
       struct cdev 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.

Debian                                          January 19, 2012                                       VCOUNT(9)