1997-03-03 18:01:01 +00:00
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.\" -*- nroff -*-
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.\"
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.\" Copyright (c) 1996 Doug Rabson
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.\"
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.\" All rights reserved.
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.\"
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.\" This program is free software.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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1997-09-29 10:11:02 +00:00
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.\" $Id: vrele.9,v 1.3 1997/04/13 14:49:12 bde Exp $
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1997-03-03 18:01:01 +00:00
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.\"
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.Dd July 24, 1996
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.Os
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1997-03-22 22:47:34 +00:00
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.Dt VRELE 9
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1997-03-03 18:01:01 +00:00
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.Sh NAME
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.Nm vrele
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.Nd decrement the use count for a vnode
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.Sh SYNOPSIS
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1997-04-13 14:49:13 +00:00
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.Fd #include <sys/param.h>
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1997-03-03 18:01:01 +00:00
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.Fd #include <sys/vnode.h>
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1997-04-13 14:49:13 +00:00
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.Ft void
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1997-03-03 18:01:01 +00:00
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.Fn vrele "struct vnode *vp"
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.Sh DESCRIPTION
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Decrement the
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.Dv v_usecount
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field of a vnode.
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.Bl -tag -width vp
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.It Ar vp
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the vnode to decrement
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.El
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.Pp
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Any code in the system which is using a vnode should call
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.Xr vrele 9
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when it is finished with the vnode.
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If the
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.Dv v_usecount
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field of the vnode reaches zero, then it will be placed on the free list.
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.Sh SEE ALSO
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.Xr vget 9 ,
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1997-09-29 10:11:02 +00:00
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.Xr vnode 9 ,
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1997-03-03 18:01:01 +00:00
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.Xr vput 9 ,
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.Xr vref 9
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.Sh AUTHORS
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This man page was written by Doug Rabson.
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