freebsd-dev/share/man/man9/vrele.9
1998-03-12 07:31:21 +00:00

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.\" Copyright (c) 1996 Doug Rabson
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.\" $Id: vrele.9,v 1.4 1997/09/29 10:11:02 wosch Exp $
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.Dd July 24, 1996
.Os
.Dt VRELE 9
.Sh NAME
.Nm vrele
.Nd decrement the use count for a vnode
.Sh SYNOPSIS
.Fd #include <sys/param.h>
.Fd #include <sys/vnode.h>
.Ft void
.Fn vrele "struct vnode *vp"
.Sh DESCRIPTION
Decrement the
.Dv v_usecount
field of a vnode.
.Bl -tag -width vp
.It Ar vp
the vnode to decrement
.El
.Pp
Any code in the system which is using a vnode should call
.Xr vrele 9
when it is finished with the vnode.
If the
.Dv v_usecount
field of the vnode reaches zero, then it will be placed on the free list.
.Sh SEE ALSO
.Xr vget 9 ,
.Xr vnode 9 ,
.Xr vput 9 ,
.Xr vref 9
.Sh AUTHORS
This man page was written by
.An Doug Rabson .