| sched_4bsd.c (109157) | sched_4bsd.c (111032) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1990, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 21 unchanged lines hidden (view full) --- 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * | 1/*- 2 * Copyright (c) 1982, 1986, 1990, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 21 unchanged lines hidden (view full) --- 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * |
| 38 * $FreeBSD: head/sys/kern/sched_4bsd.c 109157 2003-01-13 03:42:41Z jeff $ | 38 * $FreeBSD: head/sys/kern/sched_4bsd.c 111032 2003-02-17 09:55:10Z julian $ |
| 39 */ 40 41#include <sys/param.h> 42#include <sys/systm.h> 43#include <sys/kernel.h> 44#include <sys/ktr.h> 45#include <sys/lock.h> 46#include <sys/mutex.h> --- 71 unchanged lines hidden (view full) --- 118 * schedulers into account. 119 */ 120static void 121maybe_resched(struct thread *td) 122{ 123 124 mtx_assert(&sched_lock, MA_OWNED); 125 if (td->td_priority < curthread->td_priority && curthread->td_kse) | 39 */ 40 41#include <sys/param.h> 42#include <sys/systm.h> 43#include <sys/kernel.h> 44#include <sys/ktr.h> 45#include <sys/lock.h> 46#include <sys/mutex.h> --- 71 unchanged lines hidden (view full) --- 118 * schedulers into account. 119 */ 120static void 121maybe_resched(struct thread *td) 122{ 123 124 mtx_assert(&sched_lock, MA_OWNED); 125 if (td->td_priority < curthread->td_priority && curthread->td_kse) |
| 126 curthread->td_kse->ke_flags |= KEF_NEEDRESCHED; | 126 curthread->td_flags |= TDF_NEEDRESCHED; |
| 127} 128 129/* 130 * Force switch among equal priority processes every 100ms. 131 * We don't actually need to force a context switch of the current process. 132 * The act of firing the event triggers a context switch to softclock() and 133 * then switching back out again which is equivalent to a preemption, thus 134 * no further work is needed on the local CPU. --- 395 unchanged lines hidden (view full) --- 530 ke = td->td_kse; 531 p = td->td_proc; 532 533 KASSERT((ke->ke_state == KES_THREAD), ("mi_switch: kse state?")); 534 535 td->td_lastcpu = ke->ke_oncpu; 536 td->td_last_kse = ke; 537 ke->ke_oncpu = NOCPU; | 127} 128 129/* 130 * Force switch among equal priority processes every 100ms. 131 * We don't actually need to force a context switch of the current process. 132 * The act of firing the event triggers a context switch to softclock() and 133 * then switching back out again which is equivalent to a preemption, thus 134 * no further work is needed on the local CPU. --- 395 unchanged lines hidden (view full) --- 530 ke = td->td_kse; 531 p = td->td_proc; 532 533 KASSERT((ke->ke_state == KES_THREAD), ("mi_switch: kse state?")); 534 535 td->td_lastcpu = ke->ke_oncpu; 536 td->td_last_kse = ke; 537 ke->ke_oncpu = NOCPU; |
| 538 ke->ke_flags &= ~KEF_NEEDRESCHED; | 538 td->td_flags &= ~TDF_NEEDRESCHED; |
| 539 /* 540 * At the last moment, if this thread is still marked RUNNING, 541 * then put it back on the run queue as it has not been suspended 542 * or stopped or any thing else similar. 543 */ 544 if (TD_IS_RUNNING(td)) { 545 /* Put us back on the run queue (kse and all). */ 546 setrunqueue(td); --- 123 unchanged lines hidden --- | 539 /* 540 * At the last moment, if this thread is still marked RUNNING, 541 * then put it back on the run queue as it has not been suspended 542 * or stopped or any thing else similar. 543 */ 544 if (TD_IS_RUNNING(td)) { 545 /* Put us back on the run queue (kse and all). */ 546 setrunqueue(td); --- 123 unchanged lines hidden --- |