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 a vnode.

       vp  the vnode to increment

       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 is using a vnode (e.g. during the operation of some algorithm or to store in
       a data structure) should call vref().

SEE ALSO

       vget(9), vnode(9), vput(9), vrefcnt(9), vrele(9)

AUTHORS

       This manual page was written by Doug Rabson.

Debian                                            July 24, 1996                                          VREF(9)