| tcp_pcap.c (24b9bb56144191cb6d5848be6c05780fbf4b716b) | tcp_pcap.c (82334850ea451f7f6903be20e4836118e6a77460) |
|---|---|
| 1/*- 2 * Copyright (c) 2015 3 * Jonathan Looney. 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 --- 297 unchanged lines hidden (view full) --- 306 * If this held an external cluster, try to 307 * detach the cluster. But, if we held the 308 * last reference, go through the normal 309 * free-ing process. 310 */ 311 if (mhead->m_flags & M_EXT) { 312 switch (mhead->m_ext.ext_type) { 313 case EXT_SFBUF: | 1/*- 2 * Copyright (c) 2015 3 * Jonathan Looney. 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 --- 297 unchanged lines hidden (view full) --- 306 * If this held an external cluster, try to 307 * detach the cluster. But, if we held the 308 * last reference, go through the normal 309 * free-ing process. 310 */ 311 if (mhead->m_flags & M_EXT) { 312 switch (mhead->m_ext.ext_type) { 313 case EXT_SFBUF: |
| 314 case EXT_PGS: |
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| 314 /* Don't mess around with these. */ 315 tcp_pcap_m_freem(mhead); 316 continue; 317 default: 318 if (atomic_fetchadd_int( 319 mhead->m_ext.ext_cnt, -1) == 1) 320 { 321 /* --- 56 unchanged lines hidden (view full) --- 378 * is here to catch any instances where someone 379 * changes the logic to invalidate that assumption. 380 */ 381 KASSERT((n->m_flags & (M_EXT | M_PKTHDR)) == 0, 382 ("%s: Unexpected flags (%#x) for mbuf", 383 __func__, n->m_flags)); 384 n->m_data = n->m_dat + M_LEADINGSPACE_NOWRITE(m); 385 n->m_len = m->m_len; | 315 /* Don't mess around with these. */ 316 tcp_pcap_m_freem(mhead); 317 continue; 318 default: 319 if (atomic_fetchadd_int( 320 mhead->m_ext.ext_cnt, -1) == 1) 321 { 322 /* --- 56 unchanged lines hidden (view full) --- 379 * is here to catch any instances where someone 380 * changes the logic to invalidate that assumption. 381 */ 382 KASSERT((n->m_flags & (M_EXT | M_PKTHDR)) == 0, 383 ("%s: Unexpected flags (%#x) for mbuf", 384 __func__, n->m_flags)); 385 n->m_data = n->m_dat + M_LEADINGSPACE_NOWRITE(m); 386 n->m_len = m->m_len; |
| 386 bcopy(M_START(m), n->m_dat, 387 m->m_len + M_LEADINGSPACE_NOWRITE(m)); | 387 if (m->m_flags & M_NOMAP) 388 m_copydata(m, 0, m->m_len, n->m_data); 389 else 390 bcopy(M_START(m), n->m_dat, 391 m->m_len + M_LEADINGSPACE_NOWRITE(m)); |
| 388 } 389 else { 390 /* 391 * This is the case where we need to "settle for what 392 * we can get". The most probable way to this code 393 * path is that we've already taken references to the 394 * maximum number of mbuf clusters we can, and the data 395 * is too long to fit in an mbuf's internal storage. --- 50 unchanged lines hidden --- | 392 } 393 else { 394 /* 395 * This is the case where we need to "settle for what 396 * we can get". The most probable way to this code 397 * path is that we've already taken references to the 398 * maximum number of mbuf clusters we can, and the data 399 * is too long to fit in an mbuf's internal storage. --- 50 unchanged lines hidden --- |