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.TH "SKB_UNSHARE" "9" "17 July 2003" "" ""

.SH NAME
skb_unshare \- make a copy of a shared buffer
.SH SYNOPSIS
.sp
\fB
.sp
struct sk_buff * skb_unshare  (struct sk_buff * \fIskb\fB, int \fIpri\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIskb\fB\fR
buffer to check
.TP
\fB\fIpri\fB\fR
priority for memory allocation
.SH "DESCRIPTION"
.PP
If the socket buffer is a clone then this function creates a new
copy of the data, drops a reference count on the old copy and returns
the new copy with the reference count at 1. If the buffer is not a clone
the original buffer is returned. When called with a spinlock held or
from interrupt state \fIpri\fR must be GFP_ATOMIC
.PP
NULL is returned on a memory allocation failure.
.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 2.5.74.