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Committing in src/sys/vm

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Modified Files:
	vm_object.c

call vm_object_remove() to remove an object from the hashtable when
vm_object_collapse() starts fiddling with pagers.
This commit is contained in:
pk 1993-07-28 00:00:01 +00:00
parent 78df5feb47
commit 36a6e635b3
1 changed files with 39 additions and 0 deletions
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39
sys/vm/vm_object.c
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@ -287,6 +287,29 @@ void vm_object_deallocate(object)
* Make sure no one can look us up now.
*/
vm_object_remove(object->pager);
#ifdef DIAGNOSTIC
/*
* Sanity check on the object hash table.
*/
{
register vm_object_hash_entry_t entry;
int i;
for (i = 0; i < VM_OBJECT_HASH_COUNT; i++) {
queue_t bucket = &vm_object_hashtable[i];
entry = (vm_object_hash_entry_t) queue_first(bucket);
while (!queue_end(bucket, (queue_entry_t) entry)) {
if (object == entry->object) {
vm_object_print(object,0);
panic("object hashtable burb");
}
entry = (vm_object_hash_entry_t)
queue_next(&entry->hash_links);
}
}
}
#endif
vm_object_cache_unlock();
temp = object->shadow;
@ -1203,6 +1226,22 @@ void vm_object_collapse(object)
* unused portion.
*/
/*
* Remove backing_object from the object hashtable now.
* This is necessary since its pager is going away
* and therefore it is not going to be removed from
* hashtable in vm_object_deallocate().
*
* NOTE - backing_object can only get at this stage if
* it has an internal pager. It is not normally on the
* hashtable unless it was put there by eg. vm_mmap()
*
* XXX - Need I worry here about *named* ANON pagers ?
*/
if (backing_object->pager) {
vm_object_remove(backing_object->pager);
}
object->pager = backing_object->pager;
#if 1
/* Mach 3.0 code */