| uipc_mbuf.c (125420) | uipc_mbuf.c (125472) |
|---|---|
| 1/* 2 * Copyright (c) 1982, 1986, 1988, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 20 unchanged lines hidden (view full) --- 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)uipc_mbuf.c 8.2 (Berkeley) 1/4/94 34 */ 35 36#include <sys/cdefs.h> | 1/* 2 * Copyright (c) 1982, 1986, 1988, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 20 unchanged lines hidden (view full) --- 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)uipc_mbuf.c 8.2 (Berkeley) 1/4/94 34 */ 35 36#include <sys/cdefs.h> |
| 37__FBSDID("$FreeBSD: head/sys/kern/uipc_mbuf.c 125420 2004-02-04 08:14:47Z silby $"); | 37__FBSDID("$FreeBSD: head/sys/kern/uipc_mbuf.c 125472 2004-02-05 08:29:27Z silby $"); |
| 38 39#include "opt_mac.h" 40#include "opt_param.h" 41#include "opt_mbuf_stress_test.h" 42 43#include <sys/param.h> 44#include <sys/systm.h> 45#include <sys/kernel.h> --- 824 unchanged lines hidden (view full) --- 870 * will be returned. 871 * 872 * If a non-packet header is passed in, the original 873 * mbuf (chain?) will be returned unharmed. 874 */ 875struct mbuf * 876m_defrag(struct mbuf *m0, int how) 877{ | 38 39#include "opt_mac.h" 40#include "opt_param.h" 41#include "opt_mbuf_stress_test.h" 42 43#include <sys/param.h> 44#include <sys/systm.h> 45#include <sys/kernel.h> --- 824 unchanged lines hidden (view full) --- 870 * will be returned. 871 * 872 * If a non-packet header is passed in, the original 873 * mbuf (chain?) will be returned unharmed. 874 */ 875struct mbuf * 876m_defrag(struct mbuf *m0, int how) 877{ |
| 878 struct mbuf *m_new = NULL, *m_final = NULL; 879 int progress = 0, length; | 878 struct mbuf *m_new = NULL, *m_final = NULL; 879 int progress = 0, length; |
| 880 881 if (!(m0->m_flags & M_PKTHDR)) 882 return (m0); 883 884 m_fixhdr(m0); /* Needed sanity check */ 885 886#ifdef MBUF_STRESS_TEST 887 if (m_defragrandomfailures) { --- 74 unchanged lines hidden (view full) --- 962 * > 0 each fragment will be of the specified length 963 * -1 each fragment will be the same random value in length 964 * -2 each fragment's length will be entirely random 965 * (Random values range from 1 to 256) 966 */ 967struct mbuf * 968m_fragment(struct mbuf *m0, int how, int length) 969{ | 880 881 if (!(m0->m_flags & M_PKTHDR)) 882 return (m0); 883 884 m_fixhdr(m0); /* Needed sanity check */ 885 886#ifdef MBUF_STRESS_TEST 887 if (m_defragrandomfailures) { --- 74 unchanged lines hidden (view full) --- 962 * > 0 each fragment will be of the specified length 963 * -1 each fragment will be the same random value in length 964 * -2 each fragment's length will be entirely random 965 * (Random values range from 1 to 256) 966 */ 967struct mbuf * 968m_fragment(struct mbuf *m0, int how, int length) 969{ |
| 970 struct mbuf *m_new = NULL, *m_final = NULL; 971 int progress = 0; | 970 struct mbuf *m_new = NULL, *m_final = NULL; 971 int progress = 0; |
| 972 973 if (!(m0->m_flags & M_PKTHDR)) 974 return (m0); 975 976 if ((length == 0) || (length < -2)) 977 return (m0); 978 979 m_fixhdr(m0); /* Needed sanity check */ --- 49 unchanged lines hidden (view full) --- 1029 return (m0); 1030} 1031 1032#endif 1033 1034struct mbuf * 1035m_uiotombuf(struct uio *uio, int how, int len) 1036{ | 972 973 if (!(m0->m_flags & M_PKTHDR)) 974 return (m0); 975 976 if ((length == 0) || (length < -2)) 977 return (m0); 978 979 m_fixhdr(m0); /* Needed sanity check */ --- 49 unchanged lines hidden (view full) --- 1029 return (m0); 1030} 1031 1032#endif 1033 1034struct mbuf * 1035m_uiotombuf(struct uio *uio, int how, int len) 1036{ |
| 1037 struct mbuf *m_new = NULL, *m_final = NULL; 1038 int progress = 0, error = 0, length, total; | 1037 struct mbuf *m_new = NULL, *m_final = NULL; 1038 int progress = 0, error = 0, length, total; |
| 1039 1040 if (len > 0) 1041 total = min(uio->uio_resid, len); 1042 else 1043 total = uio->uio_resid; 1044 if (total > MHLEN) 1045 m_final = m_getcl(how, MT_DATA, M_PKTHDR); 1046 else --- 34 unchanged lines hidden --- | 1039 1040 if (len > 0) 1041 total = min(uio->uio_resid, len); 1042 else 1043 total = uio->uio_resid; 1044 if (total > MHLEN) 1045 m_final = m_getcl(how, MT_DATA, M_PKTHDR); 1046 else --- 34 unchanged lines hidden --- |