| memguard.c (5df87b21d3fc592f112c1721d9c2d533d4411ae4) | memguard.c (c325e866f4c58f7804884581b999849982b2abd6) |
|---|---|
| 1/*- 2 * Copyright (c) 2005, Bosko Milekic <bmilekic@FreeBSD.org>. 3 * Copyright (c) 2010 Isilon Systems, Inc. (http://www.isilon.com/) 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 247 unchanged lines hidden (view full) --- 256 struct vm_page *p; 257 258 pa = pmap_kextract(va); 259 if (pa == 0) 260 panic("MemGuard detected double-free of %p", (void *)va); 261 p = PHYS_TO_VM_PAGE(pa); 262 KASSERT(p->wire_count != 0 && p->queue == PQ_NONE, 263 ("MEMGUARD: Expected wired page %p in vtomgfifo!", p)); | 1/*- 2 * Copyright (c) 2005, Bosko Milekic <bmilekic@FreeBSD.org>. 3 * Copyright (c) 2010 Isilon Systems, Inc. (http://www.isilon.com/) 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 247 unchanged lines hidden (view full) --- 256 struct vm_page *p; 257 258 pa = pmap_kextract(va); 259 if (pa == 0) 260 panic("MemGuard detected double-free of %p", (void *)va); 261 p = PHYS_TO_VM_PAGE(pa); 262 KASSERT(p->wire_count != 0 && p->queue == PQ_NONE, 263 ("MEMGUARD: Expected wired page %p in vtomgfifo!", p)); |
| 264 return ((u_long *)&p->pageq.tqe_next); | 264 return (&p->plinks.memguard.p); |
| 265} 266 267static u_long * 268v2sizev(vm_offset_t va) 269{ 270 vm_paddr_t pa; 271 struct vm_page *p; 272 273 pa = pmap_kextract(va); 274 if (pa == 0) 275 panic("MemGuard detected double-free of %p", (void *)va); 276 p = PHYS_TO_VM_PAGE(pa); 277 KASSERT(p->wire_count != 0 && p->queue == PQ_NONE, 278 ("MEMGUARD: Expected wired page %p in vtomgfifo!", p)); | 265} 266 267static u_long * 268v2sizev(vm_offset_t va) 269{ 270 vm_paddr_t pa; 271 struct vm_page *p; 272 273 pa = pmap_kextract(va); 274 if (pa == 0) 275 panic("MemGuard detected double-free of %p", (void *)va); 276 p = PHYS_TO_VM_PAGE(pa); 277 KASSERT(p->wire_count != 0 && p->queue == PQ_NONE, 278 ("MEMGUARD: Expected wired page %p in vtomgfifo!", p)); |
| 279 return ((u_long *)&p->pageq.tqe_prev); | 279 return (&p->plinks.memguard.v); |
| 280} 281 282/* 283 * Allocate a single object of specified size with specified flags 284 * (either M_WAITOK or M_NOWAIT). 285 */ 286void * 287memguard_alloc(unsigned long req_size, int flags) --- 231 unchanged lines hidden --- | 280} 281 282/* 283 * Allocate a single object of specified size with specified flags 284 * (either M_WAITOK or M_NOWAIT). 285 */ 286void * 287memguard_alloc(unsigned long req_size, int flags) --- 231 unchanged lines hidden --- |