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| author | dg <dg@FreeBSD.org> | 1995-01-24 10:14:09 +0000 |
|---|---|---|
| committer | dg <dg@FreeBSD.org> | 1995-01-24 10:14:09 +0000 |
| commit | a9e08ab1e382c62f084401bff2ad5528a3b71e3e (patch) | |
| tree | a53b9363f7e1cd0fe0867d24dd5952593915453e /sys/vm/vm_object.h | |
| parent | cba22c2c7d66e22200f82b02a38eb994e4eb64b3 (diff) | |
| download | FreeBSD-src-a9e08ab1e382c62f084401bff2ad5528a3b71e3e.zip FreeBSD-src-a9e08ab1e382c62f084401bff2ad5528a3b71e3e.tar.gz | |
Added ability to detect sequential faults and DTRT. (swap_pager.c)
Added hook for pmap_prefault() and use symbolic constant for new third
argument to vm_page_alloc() (vm_fault.c, various)
Changed the way that upages and page tables are held. (vm_glue.c)
Fixed architectural flaw in allocating pages at interrupt time that was
introduced with the merged cache changes. (vm_page.c, various)
Adjusted some algorithms to acheive better paging performance and to
accomodate the fix for the architectural flaw mentioned above. (vm_pageout.c)
Fixed pbuf handling problem, changed policy on handling read-behind page.
(vnode_pager.c)
Submitted by: John Dyson
Diffstat (limited to 'sys/vm/vm_object.h')
| -rw-r--r-- | sys/vm/vm_object.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/vm/vm_object.h b/sys/vm/vm_object.h index 03661df..71bdd76 100644 --- a/sys/vm/vm_object.h +++ b/sys/vm/vm_object.h @@ -61,7 +61,7 @@ * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. * - * $Id: vm_object.h,v 1.3 1994/11/06 05:07:52 davidg Exp $ + * $Id: vm_object.h,v 1.4 1995/01/09 16:05:50 davidg Exp $ */ /* @@ -98,6 +98,7 @@ struct vm_object { vm_offset_t paging_offset; /* Offset into paging space */ struct vm_object *shadow; /* My shadow */ vm_offset_t shadow_offset; /* Offset in shadow */ + vm_offset_t last_read; /* last read in object -- detect seq behavior */ TAILQ_ENTRY(vm_object) cached_list; /* for persistence */ TAILQ_ENTRY(vm_object) reverse_shadow_list; /* chain of objects that are shadowed */ TAILQ_HEAD(rslist, vm_object) reverse_shadow_head; /* objects that this is a shadow for */ |
