freebsd-skq/share/man/man9/VOP_ABORTOP.9
dfr 7e67e1e732 This is the current draft of my filesystem manpages. Some files are
incomplete and some are just placeholders but I wanted to try to get
something at least into 2.2 on the grounds that what I have is a lot
better than nothing.  I also wanted to commit something which documents
the interfaces in 2.2 before I start updating the documentation for 3.0.

This is a definite 2.2 candidate and is also relavent to 2.1 if people
still care about that branch.
1997-03-03 18:01:01 +00:00

72 lines
2.2 KiB
Groff

.\" -*- nroff -*-
.\"
.\" Copyright (c) 1996 Doug Rabson
.\"
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.\"
.\" This program is free software.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" $Id$
.\"
.Dd July 24, 1996
.Os
.Dt VOP_ABORTOP 9
.Sh NAME
.Nm VOP_ABORTOP
.Nd abort a directory operation
.Sh SYNOPSIS
.Fd #include <sys/vnode.h>
.Ft int
.Fn VOP_ABORTOP "struct vnode *dvp" "struct componentname *cnp"
.Sh DESCRIPTION
This is called after
.Xr namei 9
when a
.Dv CREATE /
.Dv DELETE
isn't actually done.
If a buffer has been saved in anticipation of a
.Dv CREATE ,
delete it.
.Bl -tag -width dvp
.It Ar dvp
the vnode of the directory
.It At cnp
pathname information for the aborted operation
.El
.Sh PSEUDOCODE
.Bd -literal
int
vop_abortop(struct vnode *dvp, struct componentname *cnp)
{
if ((cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
free(cnp->cn_pnbuf, M_NAMEI);
return 0;
}
.Ed
.Sh SEE ALSO
.Xr vnode 9
.Sh AUTHORS
This man page was written by Doug Rabson.