Deleted Added
full compact
uipc_mbuf2.c (331722) uipc_mbuf2.c (350829)
1/* $KAME: uipc_mbuf2.c,v 1.31 2001/11/28 11:08:53 itojun Exp $ */
2/* $NetBSD: uipc_mbuf.c,v 1.40 1999/04/01 00:23:25 thorpej Exp $ */
3
4/*-
5 * Copyright (C) 1999 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

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56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 * @(#)uipc_mbuf.c 8.4 (Berkeley) 2/14/95
61 */
62
63#include <sys/cdefs.h>
1/* $KAME: uipc_mbuf2.c,v 1.31 2001/11/28 11:08:53 itojun Exp $ */
2/* $NetBSD: uipc_mbuf.c,v 1.40 1999/04/01 00:23:25 thorpej Exp $ */
3
4/*-
5 * Copyright (C) 1999 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

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56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 * @(#)uipc_mbuf.c 8.4 (Berkeley) 2/14/95
61 */
62
63#include <sys/cdefs.h>
64__FBSDID("$FreeBSD: stable/11/sys/kern/uipc_mbuf2.c 331722 2018-03-29 02:50:57Z eadler $");
64__FBSDID("$FreeBSD: stable/11/sys/kern/uipc_mbuf2.c 350829 2019-08-10 00:02:45Z jtl $");
65
66/*#define PULLDOWN_DEBUG*/
67
68#include <sys/param.h>
69#include <sys/systm.h>
70#include <sys/kernel.h>
71#include <sys/lock.h>
72#include <sys/malloc.h>

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209 if ((off == 0 || offp) && M_TRAILINGSPACE(n) >= tlen
210 && writable) {
211 m_copydata(n->m_next, 0, tlen, mtod(n, caddr_t) + n->m_len);
212 n->m_len += tlen;
213 m_adj(n->m_next, tlen);
214 goto ok;
215 }
216 if ((off == 0 || offp) && M_LEADINGSPACE(n->m_next) >= hlen
65
66/*#define PULLDOWN_DEBUG*/
67
68#include <sys/param.h>
69#include <sys/systm.h>
70#include <sys/kernel.h>
71#include <sys/lock.h>
72#include <sys/malloc.h>

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209 if ((off == 0 || offp) && M_TRAILINGSPACE(n) >= tlen
210 && writable) {
211 m_copydata(n->m_next, 0, tlen, mtod(n, caddr_t) + n->m_len);
212 n->m_len += tlen;
213 m_adj(n->m_next, tlen);
214 goto ok;
215 }
216 if ((off == 0 || offp) && M_LEADINGSPACE(n->m_next) >= hlen
217 && writable) {
217 && writable && n->m_next->m_len >= tlen) {
218 n->m_next->m_data -= hlen;
219 n->m_next->m_len += hlen;
220 bcopy(mtod(n, caddr_t) + off, mtod(n->m_next, caddr_t), hlen);
221 n->m_len -= hlen;
222 n = n->m_next;
223 off = 0;
224 goto ok;
225 }

--- 226 unchanged lines hidden ---
218 n->m_next->m_data -= hlen;
219 n->m_next->m_len += hlen;
220 bcopy(mtod(n, caddr_t) + off, mtod(n->m_next, caddr_t), hlen);
221 n->m_len -= hlen;
222 n = n->m_next;
223 off = 0;
224 goto ok;
225 }

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