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.TH "PSKB_EXPAND_HEAD" "9" "09 April 2004" "" ""

.SH NAME
pskb_expand_head \- reallocate header of sk_buff
.SH SYNOPSIS
.sp
\fB
.sp
int pskb_expand_head  (struct sk_buff * \fIskb\fB, int \fInhead\fB, int \fIntail\fB, int \fIgfp_mask\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIskb\fB\fR
buffer to reallocate
.TP
\fB\fInhead\fB\fR
room to add at head
.TP
\fB\fIntail\fB\fR
room to add at tail
.TP
\fB\fIgfp_mask\fB\fR
allocation priority
.SH "DESCRIPTION"
.PP
Expands (or creates identical copy, if &nhead and &ntail are zero)
header of skb. &sk_buff itself is not changed. &sk_buff MUST have
reference count of 1. Returns zero in the case of success or error,
if expansion failed. In the last case, &sk_buff is not changed.
.PP
All the pointers pointing into skb header may change and must be
reloaded after call to this function.
.SH "ABOUT THIS DOCUMENT"
.PP
This documentation is free software; you can redistribute
it and/or modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later
version.
.PP
This program is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
.PP
You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
MA 02111-1307 USA
.PP
For more details see the file COPYING in the source
distribution of Linux.
.PP
If you have comments on the formatting of this manpage, then please contact
Michael Still (mikal@stillhq.com).
.PP
This documentation was generated with kernel version 2.6.0.