vref man page on GhostBSD

vref man page on GhostBSD

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VREF(9)			 BSD Kernel Developer's 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 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.

BSD				 July 24, 1996				   BSD

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