vm_fault.c (de5f6a77657312a9e058a0a362267093cda2db89) vm_fault.c (65bc79b85ffdf69216696a91e0ec7ff2130e0888)
1/*
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1994 John S. Dyson
5 * All rights reserved.
6 * Copyright (c) 1994 David Greenman
7 * All rights reserved.
8 *

--- 52 unchanged lines hidden (view full) ---

61 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
62 * School of Computer Science
63 * Carnegie Mellon University
64 * Pittsburgh PA 15213-3890
65 *
66 * any improvements or extensions that they make and grant Carnegie the
67 * rights to redistribute these changes.
68 *
1/*
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1994 John S. Dyson
5 * All rights reserved.
6 * Copyright (c) 1994 David Greenman
7 * All rights reserved.
8 *

--- 52 unchanged lines hidden (view full) ---

61 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
62 * School of Computer Science
63 * Carnegie Mellon University
64 * Pittsburgh PA 15213-3890
65 *
66 * any improvements or extensions that they make and grant Carnegie the
67 * rights to redistribute these changes.
68 *
69 * $Id: vm_fault.c,v 1.40 1996/01/19 03:59:43 dyson Exp $
69 * $Id: vm_fault.c,v 1.41 1996/03/02 02:54:18 dyson Exp $
70 */
71
72/*
73 * Page fault handling module.
74 */
75
76#include <sys/param.h>
77#include <sys/systm.h>

--- 356 unchanged lines hidden (view full) ---

434 object = first_object;
435 pindex = first_pindex;
436 m = first_m;
437 }
438 first_m = NULL;
439
440 if ((m->flags & PG_ZERO) == 0)
441 vm_page_zero_fill(m);
70 */
71
72/*
73 * Page fault handling module.
74 */
75
76#include <sys/param.h>
77#include <sys/systm.h>

--- 356 unchanged lines hidden (view full) ---

434 object = first_object;
435 pindex = first_pindex;
436 m = first_m;
437 }
438 first_m = NULL;
439
440 if ((m->flags & PG_ZERO) == 0)
441 vm_page_zero_fill(m);
442 m->valid = VM_PAGE_BITS_ALL;
443 cnt.v_zfod++;
444 break;
445 } else {
446 if (object != first_object) {
447 vm_object_pip_wakeup(object);
448 }
449 object = next_object;
450 object->paging_in_progress++;

--- 57 unchanged lines hidden (view full) ---

508 vm_page_protect(first_m, VM_PROT_NONE);
509 PAGE_WAKEUP(first_m);
510 vm_page_free(first_m);
511 /*
512 * grab the page and put it into the process'es object
513 */
514 vm_page_rename(m, first_object, first_pindex);
515 first_m = m;
442 cnt.v_zfod++;
443 break;
444 } else {
445 if (object != first_object) {
446 vm_object_pip_wakeup(object);
447 }
448 object = next_object;
449 object->paging_in_progress++;

--- 57 unchanged lines hidden (view full) ---

507 vm_page_protect(first_m, VM_PROT_NONE);
508 PAGE_WAKEUP(first_m);
509 vm_page_free(first_m);
510 /*
511 * grab the page and put it into the process'es object
512 */
513 vm_page_rename(m, first_object, first_pindex);
514 first_m = m;
516 m->valid = VM_PAGE_BITS_ALL;
517 m->dirty = VM_PAGE_BITS_ALL;
518 m = NULL;
519 ++vm_fault_copy_save_1;
520 } else {
521 /*
522 * Oh, well, lets copy it.
523 */
524 vm_page_copy(m, first_m);
515 m->dirty = VM_PAGE_BITS_ALL;
516 m = NULL;
517 ++vm_fault_copy_save_1;
518 } else {
519 /*
520 * Oh, well, lets copy it.
521 */
522 vm_page_copy(m, first_m);
525 first_m->valid = VM_PAGE_BITS_ALL;
526 }
527
528 if (lookup_still_valid &&
529 /*
530 * make sure that we have two shadow objs
531 */
532 (object->shadow_count == 2) &&
533 /*

--- 52 unchanged lines hidden (view full) ---

586 }
587 } else {
588 /*
589 * If the other object doesn't have the page,
590 * then we move it there.
591 */
592 vm_page_rename(m, other_object, other_pindex);
593 m->dirty = VM_PAGE_BITS_ALL;
523 }
524
525 if (lookup_still_valid &&
526 /*
527 * make sure that we have two shadow objs
528 */
529 (object->shadow_count == 2) &&
530 /*

--- 52 unchanged lines hidden (view full) ---

583 }
584 } else {
585 /*
586 * If the other object doesn't have the page,
587 * then we move it there.
588 */
589 vm_page_rename(m, other_object, other_pindex);
590 m->dirty = VM_PAGE_BITS_ALL;
594 /* m->valid = VM_PAGE_BITS_ALL; */
591 m->valid = VM_PAGE_BITS_ALL;
595 ++vm_fault_copy_save_2;
596 }
597 }
598 }
599 }
600
601 if (m) {
602 if (m->queue != PQ_ACTIVE)

--- 102 unchanged lines hidden (view full) ---

705 */
706 if (fault_type & VM_PROT_WRITE) {
707 m->dirty = VM_PAGE_BITS_ALL;
708 }
709 }
710
711 m->flags |= PG_MAPPED|PG_REFERENCED;
712 m->flags &= ~PG_ZERO;
592 ++vm_fault_copy_save_2;
593 }
594 }
595 }
596 }
597
598 if (m) {
599 if (m->queue != PQ_ACTIVE)

--- 102 unchanged lines hidden (view full) ---

702 */
703 if (fault_type & VM_PROT_WRITE) {
704 m->dirty = VM_PAGE_BITS_ALL;
705 }
706 }
707
708 m->flags |= PG_MAPPED|PG_REFERENCED;
709 m->flags &= ~PG_ZERO;
710 m->valid = VM_PAGE_BITS_ALL;
713
714 pmap_enter(map->pmap, vaddr, VM_PAGE_TO_PHYS(m), prot, wired);
715#if 0
716 if (vp && change_wiring == 0 && wired == 0)
717 pmap_prefault(map->pmap, vaddr, entry, first_object);
718#endif
719
720 /*

--- 363 unchanged lines hidden --- 		711
712 pmap_enter(map->pmap, vaddr, VM_PAGE_TO_PHYS(m), prot, wired);
713#if 0
714 if (vp && change_wiring == 0 && wired == 0)
715 pmap_prefault(map->pmap, vaddr, entry, first_object);
716#endif
717
718 /*

--- 363 unchanged lines hidden ---