diff options
| -rw-r--r-- | sys/vm/vm_object.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c index 8756c8e..822c8cf 100644 --- a/sys/vm/vm_object.c +++ b/sys/vm/vm_object.c @@ -369,28 +369,26 @@ vm_object_allocate(objtype_t type, vm_pindex_t size) /* * vm_object_reference: * - * Gets another reference to the given object. + * Gets another reference to the given object. Note: OBJ_DEAD + * objects can be referenced during final cleaning. */ void vm_object_reference(vm_object_t object) { if (object == NULL) return; - - vm_object_lock(object); -#if 0 - /* object can be re-referenced during final cleaning */ - KASSERT(!(object->flags & OBJ_DEAD), - ("vm_object_reference: attempting to reference dead obj")); -#endif - + if (object != kmem_object) + mtx_lock(&Giant); + VM_OBJECT_LOCK(object); object->ref_count++; + VM_OBJECT_UNLOCK(object); if (object->type == OBJT_VNODE) { while (vget((struct vnode *) object->handle, LK_RETRY, curthread)) { printf("vm_object_reference: delay in getting object\n"); } } - vm_object_unlock(object); + if (object != kmem_object) + mtx_unlock(&Giant); } /* |
