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vm_pageout.c (9507) vm_pageout.c (10358)
1/*
2 * Copyright (c) 1991 Regents of the University of California.
3 * 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 *

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60 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
61 * School of Computer Science
62 * Carnegie Mellon University
63 * Pittsburgh PA 15213-3890
64 *
65 * any improvements or extensions that they make and grant Carnegie the
66 * rights to redistribute these changes.
67 *
1/*
2 * Copyright (c) 1991 Regents of the University of California.
3 * 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 *

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60 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
61 * School of Computer Science
62 * Carnegie Mellon University
63 * Pittsburgh PA 15213-3890
64 *
65 * any improvements or extensions that they make and grant Carnegie the
66 * rights to redistribute these changes.
67 *
68 * $Id: vm_pageout.c,v 1.52 1995/07/10 08:53:22 davidg Exp $
68 * $Id: vm_pageout.c,v 1.53 1995/07/13 08:48:40 davidg Exp $
69 */
70
71/*
72 * The proverbial page-out daemon.
73 */
74
75#include <sys/param.h>
76#include <sys/systm.h>

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84
85#include <vm/vm.h>
86#include <vm/vm_page.h>
87#include <vm/vm_pageout.h>
88#include <vm/vm_kern.h>
89#include <vm/vm_pager.h>
90#include <vm/swap_pager.h>
91
69 */
70
71/*
72 * The proverbial page-out daemon.
73 */
74
75#include <sys/param.h>
76#include <sys/systm.h>

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84
85#include <vm/vm.h>
86#include <vm/vm_page.h>
87#include <vm/vm_pageout.h>
88#include <vm/vm_kern.h>
89#include <vm/vm_pager.h>
90#include <vm/swap_pager.h>
91
92/*
93 * System initialization
94 */
95
96/* the kernel process "vm_pageout"*/
97static void vm_pageout __P((void));
98struct proc *pageproc;
99
100static struct kproc_desc page_kp = {
101 "pagedaemon",
102 vm_pageout,
103 &pageproc
104};
105SYSINIT_KT(pagedaemon, SI_SUB_KTHREAD_PAGE, SI_ORDER_FIRST, kproc_start, (caddr_t)&page_kp)
106
107/* the kernel process "vm_daemon"*/
108static void vm_daemon __P((void));
109struct proc *vmproc;
110
111static struct kproc_desc vm_kp = {
112 "vmdaemon",
113 vm_daemon,
114 &vmproc
115};
116SYSINIT_KT(vmdaemon, SI_SUB_KTHREAD_VM, SI_ORDER_FIRST, kproc_start, (caddr_t)&vm_kp)
117
118
92int vm_pages_needed; /* Event on which pageout daemon sleeps */
93
94int vm_pageout_pages_needed; /* flag saying that the pageout daemon needs pages */
95
96extern int npendingio;
97int vm_pageout_req_swapout; /* XXX */
98int vm_daemon_needed;
99extern int nswiodone;

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784 }
785 }
786 return force_wakeup;
787}
788
789/*
790 * vm_pageout is the high level pageout daemon.
791 */
119int vm_pages_needed; /* Event on which pageout daemon sleeps */
120
121int vm_pageout_pages_needed; /* flag saying that the pageout daemon needs pages */
122
123extern int npendingio;
124int vm_pageout_req_swapout; /* XXX */
125int vm_daemon_needed;
126extern int nswiodone;

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811 }
812 }
813 return force_wakeup;
814}
815
816/*
817 * vm_pageout is the high level pageout daemon.
818 */
792void
819static void
793vm_pageout()
794{
795 (void) spl0();
796
797 /*
798 * Initialize some paging parameters.
799 */
800

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848 vm_pager_sync();
849 vm_pageout_scan();
850 vm_pager_sync();
851 wakeup(&cnt.v_free_count);
852 wakeup(kmem_map);
853 }
854}
855
820vm_pageout()
821{
822 (void) spl0();
823
824 /*
825 * Initialize some paging parameters.
826 */
827

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875 vm_pager_sync();
876 vm_pageout_scan();
877 vm_pager_sync();
878 wakeup(&cnt.v_free_count);
879 wakeup(kmem_map);
880 }
881}
882
856void
883static void
857vm_daemon()
858{
859 vm_object_t object;
860 struct proc *p;
861
862 while (TRUE) {
863 tsleep(&vm_daemon_needed, PUSER, "psleep", 0);
864 if (vm_pageout_req_swapout) {

--- 67 unchanged lines hidden --- 		884vm_daemon()
885{
886 vm_object_t object;
887 struct proc *p;
888
889 while (TRUE) {
890 tsleep(&vm_daemon_needed, PUSER, "psleep", 0);
891 if (vm_pageout_req_swapout) {

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