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o Lock page queue accesses by vm_page_free().

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This commit is contained in:
Alan Cox 2002-07-28 19:01:38 +00:00
parent 0f258b75d3
commit 6a684ecf05
1 changed files with 8 additions and 2 deletions
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10
sys/vm/vm_object.c
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@ -1435,8 +1435,10 @@ vm_object_backing_scan(vm_object_t object, int op)
* Page is out of the parent object's range, we
* can simply destroy it.
*/
vm_page_lock_queues();
vm_page_protect(p, VM_PROT_NONE);
vm_page_free(p);
vm_page_unlock_queues();
p = next;
continue;
}
@ -1453,8 +1455,10 @@ vm_object_backing_scan(vm_object_t object, int op)
*
* Leave the parent's page alone
*/
vm_page_lock_queues();
vm_page_protect(p, VM_PROT_NONE);
vm_page_free(p);
vm_page_unlock_queues();
p = next;
continue;
}
@ -1756,10 +1760,11 @@ again:
if (p->valid & p->dirty)
continue;
}
vm_page_lock_queues();
vm_page_busy(p);
vm_page_protect(p, VM_PROT_NONE);
vm_page_free(p);
vm_page_unlock_queues();
}
}
} else {
@ -1790,10 +1795,11 @@ again:
continue;
}
}
vm_page_lock_queues();
vm_page_busy(p);
vm_page_protect(p, VM_PROT_NONE);
vm_page_free(p);
vm_page_unlock_queues();
}
start += 1;
size -= 1;