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| author | dyson <dyson@FreeBSD.org> | 1995-09-03 20:11:26 +0000 |
|---|---|---|
| committer | dyson <dyson@FreeBSD.org> | 1995-09-03 20:11:26 +0000 |
| commit | 325ce9e610ca9d210af8bd2df7f04a3a20066247 (patch) | |
| tree | c014426114b8114514b169ad7ddef52d6c6a59a3 /sys/vm/vm_page.h | |
| parent | a9ecce3895290a647d46efe67826940e8b6216fe (diff) | |
| download | FreeBSD-src-325ce9e610ca9d210af8bd2df7f04a3a20066247.zip FreeBSD-src-325ce9e610ca9d210af8bd2df7f04a3a20066247.tar.gz | |
Added prototype for new routine "vm_page_set_validclean" and initial
declarations for the prezeroed pages mechanism.
Diffstat (limited to 'sys/vm/vm_page.h')
| -rw-r--r-- | sys/vm/vm_page.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/vm/vm_page.h b/sys/vm/vm_page.h index db6d3b3..c5b55fe 100644 --- a/sys/vm/vm_page.h +++ b/sys/vm/vm_page.h @@ -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 1.18 1995/04/23 08:05:49 bde Exp $ + * $Id: vm_page.h,v 1.19 1995/07/13 08:48:38 davidg Exp $ */ /* @@ -132,6 +132,7 @@ struct vm_page { #define PG_FICTITIOUS 0x0100 /* physical page doesn't exist (O) */ #define PG_WRITEABLE 0x0200 /* page is mapped writeable */ #define PG_MAPPED 0x0400 /* page is mapped */ +#define PG_ZERO 0x0800 /* page is zeroed */ #define PG_REFERENCED 0x1000 /* page has been referenced */ #define PG_CACHE 0x4000 /* On VMIO cache */ #define PG_FREE 0x8000 /* page is in free list */ @@ -168,9 +169,14 @@ struct vm_page { * active * Pages that are "active" i.e. they have been * recently referenced. + * + * zero + * Pages that are really free and have been pre-zeroed + * */ extern struct pglist vm_page_queue_free; /* memory free queue */ +extern struct pglist vm_page_queue_zero; /* zeroed memory free queue */ extern struct pglist vm_page_queue_active; /* active memory queue */ extern struct pglist vm_page_queue_inactive; /* inactive memory queue */ extern struct pglist vm_page_queue_cache; /* cache memory queue */ @@ -222,6 +228,7 @@ extern vm_offset_t last_phys_addr; /* physical address for last_page */ #define VM_ALLOC_NORMAL 0 #define VM_ALLOC_INTERRUPT 1 #define VM_ALLOC_SYSTEM 2 +#define VM_ALLOC_ZERO 0x80 void vm_page_activate __P((vm_page_t)); vm_page_t vm_page_alloc __P((vm_object_t, vm_offset_t, int)); @@ -241,6 +248,7 @@ void vm_page_set_dirty __P((vm_page_t, int, int)); void vm_page_set_clean __P((vm_page_t, int, int)); int vm_page_is_clean __P((vm_page_t, int, int)); void vm_page_set_valid __P((vm_page_t, int, int)); +void vm_page_set_validclean __P((vm_page_t, int, int)); void vm_page_set_invalid __P((vm_page_t, int, int)); int vm_page_is_valid __P((vm_page_t, int, int)); void vm_page_test_dirty __P((vm_page_t)); |
