| kern_switch.c (91751) | kern_switch.c (93264) |
|---|---|
| 1/* 2 * Copyright (c) 2001 Jake Burkholder <jake@FreeBSD.org> 3 * 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 --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/* 2 * Copyright (c) 2001 Jake Burkholder <jake@FreeBSD.org> 3 * 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 --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/sys/kern/kern_switch.c 91751 2002-03-06 15:34:07Z des $ | 26 * $FreeBSD: head/sys/kern/kern_switch.c 93264 2002-03-27 05:39:23Z dillon $ |
| 27 */ 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/kernel.h> 32#include <sys/ktr.h> 33#include <sys/lock.h> 34#include <sys/mutex.h> --- 37 unchanged lines hidden (view full) --- 72/* Critical sections that prevent preemption. */ 73void 74critical_enter(void) 75{ 76 struct thread *td; 77 78 td = curthread; 79 if (td->td_critnest == 0) | 27 */ 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/kernel.h> 32#include <sys/ktr.h> 33#include <sys/lock.h> 34#include <sys/mutex.h> --- 37 unchanged lines hidden (view full) --- 72/* Critical sections that prevent preemption. */ 73void 74critical_enter(void) 75{ 76 struct thread *td; 77 78 td = curthread; 79 if (td->td_critnest == 0) |
| 80 td->td_savecrit = cpu_critical_enter(); | 80 cpu_critical_enter(); |
| 81 td->td_critnest++; 82} 83 84void 85critical_exit(void) 86{ 87 struct thread *td; 88 89 td = curthread; 90 if (td->td_critnest == 1) { 91 td->td_critnest = 0; | 81 td->td_critnest++; 82} 83 84void 85critical_exit(void) 86{ 87 struct thread *td; 88 89 td = curthread; 90 if (td->td_critnest == 1) { 91 td->td_critnest = 0; |
| 92 cpu_critical_exit(td->td_savecrit); 93 } else | 92 cpu_critical_exit(); 93 } else { |
| 94 td->td_critnest--; | 94 td->td_critnest--; |
| 95 } |
|
| 95} 96 97/* 98 * Clear the status bit of the queue corresponding to priority level pri, 99 * indicating that it is empty. 100 */ 101static __inline void 102runq_clrbit(struct runq *rq, int pri) --- 198 unchanged lines hidden --- | 96} 97 98/* 99 * Clear the status bit of the queue corresponding to priority level pri, 100 * indicating that it is empty. 101 */ 102static __inline void 103runq_clrbit(struct runq *rq, int pri) --- 198 unchanged lines hidden --- |