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Kill VM_PAGE_INIT macro as it is only used once and makes the code more

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difficult to understand. Got rid of unused vm_page flags.
This commit is contained in:
David Greenman 1995-01-10 09:19:52 +00:00
parent 480dff540b
commit a776a317e9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=5465
2 changed files with 15 additions and 22 deletions
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17
sys/vm/vm_page.c
View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)vm_page.c 7.4 (Berkeley) 5/7/91
* $Id: vm_page.c,v 1.13 1995/01/09 16:05:51 davidg Exp $
* $Id: vm_page.c,v 1.14 1995/01/10 07:32:48 davidg Exp $
*/
/*
@ -635,6 +635,7 @@ vm_page_alloc(object, offset, inttime)
goto gotpage;
}
}
simple_unlock(&vm_page_queue_free_lock);
splx(s);
return NULL;
}
@ -650,7 +651,6 @@ vm_page_alloc(object, offset, inttime)
}
simple_unlock(&vm_page_queue_free_lock);
splx(s);
/* wakeup((caddr_t) &vm_pages_needed); */
return (NULL);
}
}
@ -661,7 +661,18 @@ vm_page_alloc(object, offset, inttime)
gotpage:
simple_unlock(&vm_page_queue_free_lock);
VM_PAGE_INIT(mem, object, offset);
mem->flags = PG_BUSY | PG_CLEAN;
mem->wire_count = 0;
mem->hold_count = 0;
mem->act_count = 0;
mem->busy = 0;
mem->valid = 0;
mem->dirty = 0;
mem->bmapped = 0;
/* XXX before splx until vm_page_insert is safe */
vm_page_insert(mem, object, offset);
splx(s);
/*

20
sys/vm/vm_page.h
View file

@ -61,7 +61,7 @@
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* $Id: vm_page.h,v 1.10 1994/11/14 08:19:08 bde Exp $
* $Id: vm_page.h,v 1.11 1995/01/09 16:05:52 davidg Exp $
*/
/*
@ -124,18 +124,14 @@ struct vm_page {
*/
#define PG_INACTIVE 0x0001 /* page is in inactive list (P) */
#define PG_ACTIVE 0x0002 /* page is in active list (P) */
#define PG_LAUNDRY 0x0004 /* page is being cleaned now (P) */
#define PG_CLEAN 0x0008 /* page has not been modified */
#define PG_BUSY 0x0010 /* page is in transit (O) */
#define PG_WANTED 0x0020 /* someone is waiting for page (O) */
#define PG_TABLED 0x0040 /* page is in VP table (O) */
#define PG_COPYONWRITE 0x0080 /* must copy page before changing (O) */
#define PG_FICTITIOUS 0x0100 /* physical page doesn't exist (O) */
#define PG_FAKE 0x0200 /* page is placeholder for pagein (O) */
#define PG_FILLED 0x0400 /* client flag to set when filled */
#define PG_DIRTY 0x0800 /* client flag to set when dirty */
#define PG_REFERENCED 0x1000 /* page has been referenced */
#define PG_VMIO 0x2000 /* VMIO flag */
#define PG_CACHE 0x4000 /* On VMIO cache */
#define PG_FREE 0x8000 /* page is in free list */
@ -216,20 +212,6 @@ extern simple_lock_data_t vm_page_queue_free_lock; /* lock on free page queue */
#define vm_page_lock_queues() simple_lock(&vm_page_queue_lock)
#define vm_page_unlock_queues() simple_unlock(&vm_page_queue_lock)
#define vm_page_set_modified(m) { (m)->flags &= ~PG_CLEAN; }
#define VM_PAGE_INIT(mem, object, offset) { \
(mem)->flags = PG_BUSY | PG_CLEAN | PG_FAKE; \
vm_page_insert((mem), (object), (offset)); \
(mem)->wire_count = 0; \
(mem)->hold_count = 0; \
(mem)->act_count = 0; \
(mem)->busy = 0; \
(mem)->valid = 0; \
(mem)->dirty = 0; \
(mem)->bmapped = 0; \
}
#if PAGE_SIZE == 4096
#define VM_PAGE_BITS_ALL 0xff
#endif