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Enabled page table preloading of cached objects.

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Submitted by:	John Dyson
This commit is contained in:
David Greenman 1994-08-06 09:00:50 +00:00
parent 0d2afceedd
commit f720dc2ceb
1 changed files with 8 additions and 1 deletions
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9
sys/vm/vm_mmap.c
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@ -38,7 +38,7 @@
* from: Utah $Hdr: vm_mmap.c 1.6 91/10/21$
*
* @(#)vm_mmap.c 8.4 (Berkeley) 1/12/94
* $Id: vm_mmap.c,v 1.3 1994/08/02 07:55:28 davidg Exp $
* $Id: vm_mmap.c,v 1.4 1994/08/04 03:06:44 davidg Exp $
*/
/*
@ -68,6 +68,8 @@ int mmapdebug = 0;
#define MDB_MAPIT 0x04
#endif
void pmap_object_init_pt();
struct sbrk_args {
int incr;
};
@ -712,6 +714,9 @@ vm_mmap(map, addr, size, prot, maxprot, flags, handle, foff)
pager_cache(object, FALSE);
else
vm_object_deallocate(object);
if( map->pmap)
pmap_object_init_pt(map->pmap, *addr, object, foff, size);
}
/*
* Copy-on-write of file. Two flavors.
@ -784,6 +789,8 @@ vm_mmap(map, addr, size, prot, maxprot, flags, handle, foff)
* protect everything ourselves.
*/
vm_object_pmap_copy(object, foff, foff + size);
if( map->pmap)
pmap_object_init_pt(map->pmap, *addr, object, foff, size);
vm_object_deallocate(object);
vm_map_deallocate(tmap);
if (rv != KERN_SUCCESS)