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Add vm object locking to pmap_object_init_pt().
This commit is contained in:
Alan Cox 2003-06-28 21:21:04 +00:00
parent 5163584c7e
commit 4a309ab44c
1 changed files with 9 additions and 4 deletions
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13
sys/alpha/alpha/pmap.c
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@ -2090,18 +2090,18 @@ pmap_object_init_pt(pmap_t pmap, vm_offset_t addr,
if (pmap == NULL || object == NULL)
return;
VM_OBJECT_LOCK(object);
psize = alpha_btop(size);
if ((object->type != OBJT_VNODE) ||
((limit & MAP_PREFAULT_PARTIAL) && (psize > MAX_INIT_PT) &&
(object->resident_page_count > MAX_INIT_PT))) {
return;
goto unlock_return;
}
if (psize + pindex > object->size) {
if (object->size < pindex)
return;
goto unlock_return;
psize = object->size - pindex;
}
@ -2141,8 +2141,10 @@ pmap_object_init_pt(pmap_t pmap, vm_offset_t addr,
vm_page_deactivate(p);
vm_page_busy(p);
vm_page_unlock_queues();
VM_OBJECT_UNLOCK(object);
mpte = pmap_enter_quick(pmap,
addr + alpha_ptob(tmpidx), p, mpte);
VM_OBJECT_LOCK(object);
vm_page_lock_queues();
vm_page_wakeup(p);
}
@ -2173,15 +2175,18 @@ pmap_object_init_pt(pmap_t pmap, vm_offset_t addr,
vm_page_deactivate(p);
vm_page_busy(p);
vm_page_unlock_queues();
VM_OBJECT_UNLOCK(object);
mpte = pmap_enter_quick(pmap,
addr + alpha_ptob(tmpidx), p, mpte);
VM_OBJECT_LOCK(object);
vm_page_lock_queues();
vm_page_wakeup(p);
}
vm_page_unlock_queues();
}
}
return;
unlock_return:
VM_OBJECT_UNLOCK(object);
}
/*