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.TH "SKB_SHARE_CHECK" "9" "17 July 2003" "" ""

.SH NAME
skb_share_check \- check if buffer is shared and if so clone it
.SH SYNOPSIS
.sp
\fB
.sp
struct sk_buff * skb_share_check  (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 buffer is shared the buffer is cloned and the old copy
drops a reference. A new clone with a single reference is returned.
If the buffer is not shared the original buffer is returned. When
being called from interrupt status or with spinlocks held pri 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.