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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1999-08-28 00:22:10 +00:00
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.\" $FreeBSD$
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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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.Dt VOP_STRATEGY 9
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.Sh NAME
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.Nm VOP_STRATEGY
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2002-12-12 17:26:04 +00:00
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.Nd read or write a file system buffer
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1997-03-03 18:01:01 +00:00
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.Sh SYNOPSIS
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2001-10-01 16:09:29 +00:00
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.In sys/param.h
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.In sys/vnode.h
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1997-03-03 18:01:01 +00:00
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.Ft int
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1998-08-03 17:27:41 +00:00
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.Fn VOP_STRATEGY "struct vnode *vp" "struct buf *bp"
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1997-03-03 18:01:01 +00:00
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.Sh DESCRIPTION
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The arguments are:
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2000-11-17 15:40:57 +00:00
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.Bl -tag -width 2n
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2003-05-31 14:07:25 +00:00
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.It Fa vp
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2005-01-28 10:43:05 +00:00
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The vnode that the buffer is for.
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2003-05-31 14:07:25 +00:00
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.It Fa bp
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2005-01-28 10:43:05 +00:00
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The buffer to be read or written.
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1997-03-03 18:01:01 +00:00
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.El
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.Pp
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This call either reads or writes data from a file, depending on the value of
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2000-04-21 01:19:53 +00:00
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.Fa bp->b_io.bio_cmd .
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2001-04-15 12:04:05 +00:00
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.Pp
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The call may block.
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1997-03-03 18:01:01 +00:00
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.Sh RETURN VALUES
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Zero is returned on success, otherwise an error is returned.
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.Sh SEE ALSO
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1998-01-03 22:26:00 +00:00
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.\" .Xr buf 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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.Sh AUTHORS
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1998-03-12 07:31:21 +00:00
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This man page was written by
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.An Doug Rabson .
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