void
AcpiNsDeleteNamespaceByOwner (
ACPI_OWNER_ID OwnerId)
{
ACPI_NAMESPACE_NODE *ChildNode;
ACPI_NAMESPACE_NODE *DeletionNode;
ACPI_NAMESPACE_NODE *ParentNode;
UINT32 Level;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE_U32 (NsDeleteNamespaceByOwner, OwnerId);
if (OwnerId == 0)
{
return_VOID;
}
/* Lock namespace for possible update */
Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE (Status))
{
return_VOID;
}
DeletionNode = NULL;
ParentNode = AcpiGbl_RootNode;
ChildNode = NULL;
Level = 1;
/*
* Traverse the tree of nodes until we bubble back up
* to where we started.
*/
while (Level > 0)
{
/*
* Get the next child of this parent node. When ChildNode is NULL,
* the first child of the parent is returned
*/
ChildNode = AcpiNsGetNextNode (ParentNode, ChildNode);
if (DeletionNode)
{
AcpiNsDeleteChildren (DeletionNode);
AcpiNsRemoveNode (DeletionNode);
DeletionNode = NULL;
}
if (ChildNode)
{
if (ChildNode->OwnerId == OwnerId)
{
/* Found a matching child node - detach any attached object */
AcpiNsDetachObject (ChildNode);
}
/* Check if this node has any children */
if (ChildNode->Child)
{
/*
* There is at least one child of this node,
* visit the node
*/
Level++;
ParentNode = ChildNode;
ChildNode = NULL;
}
else if (ChildNode->OwnerId == OwnerId)
{
DeletionNode = ChildNode;
}
}
else
{
/*
* No more children of this parent node.
* Move up to the grandparent.
*/
Level--;
if (Level != 0)
{
if (ParentNode->OwnerId == OwnerId)
{
DeletionNode = ParentNode;
}
}
/* New "last child" is this parent node */
ChildNode = ParentNode;
/* Move up the tree to the grandparent */
ParentNode = ParentNode->Parent;
}
}
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
return_VOID;
}
static ACPI_STATUS
AcpiNsDeleteSubtree (
ACPI_HANDLE StartHandle)
{
ACPI_STATUS Status;
ACPI_HANDLE ChildHandle;
ACPI_HANDLE ParentHandle;
ACPI_HANDLE NextChildHandle;
ACPI_HANDLE Dummy;
UINT32 Level;
ACPI_FUNCTION_TRACE (NsDeleteSubtree);
ParentHandle = StartHandle;
ChildHandle = NULL;
Level = 1;
/*
* Traverse the tree of objects until we bubble back up
* to where we started.
*/
while (Level > 0)
{
/* Attempt to get the next object in this scope */
Status = AcpiGetNextObject (ACPI_TYPE_ANY, ParentHandle,
ChildHandle, &NextChildHandle);
ChildHandle = NextChildHandle;
/* Did we get a new object? */
if (ACPI_SUCCESS (Status))
{
/* Check if this object has any children */
if (ACPI_SUCCESS (AcpiGetNextObject (ACPI_TYPE_ANY, ChildHandle,
NULL, &Dummy)))
{
/*
* There is at least one child of this object,
* visit the object
*/
Level++;
ParentHandle = ChildHandle;
ChildHandle = NULL;
}
}
else
{
/*
* No more children in this object, go back up to
* the object's parent
*/
Level--;
/* Delete all children now */
AcpiNsDeleteChildren (ChildHandle);
ChildHandle = ParentHandle;
Status = AcpiGetParent (ParentHandle, &ParentHandle);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
}
/* Now delete the starting object, and we are done */
AcpiNsDeleteNode (ChildHandle);
return_ACPI_STATUS (AE_OK);
}
void
AcpiNsDeleteNamespaceSubtree (
ACPI_NAMESPACE_NODE *ParentNode)
{
ACPI_NAMESPACE_NODE *ChildNode = NULL;
UINT32 Level = 1;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (NsDeleteNamespaceSubtree);
if (!ParentNode)
{
return_VOID;
}
/* Lock namespace for possible update */
Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE (Status))
{
return_VOID;
}
/*
* Traverse the tree of objects until we bubble back up
* to where we started.
*/
while (Level > 0)
{
/* Get the next node in this scope (NULL if none) */
ChildNode = AcpiNsGetNextNode (ParentNode, ChildNode);
if (ChildNode)
{
/* Found a child node - detach any attached object */
AcpiNsDetachObject (ChildNode);
/* Check if this node has any children */
if (ChildNode->Child)
{
/*
* There is at least one child of this node,
* visit the node
*/
Level++;
ParentNode = ChildNode;
ChildNode = NULL;
}
}
else
{
/*
* No more children of this parent node.
* Move up to the grandparent.
*/
Level--;
/*
* Now delete all of the children of this parent
* all at the same time.
*/
AcpiNsDeleteChildren (ParentNode);
/* New "last child" is this parent node */
ChildNode = ParentNode;
/* Move up the tree to the grandparent */
ParentNode = ParentNode->Parent;
}
}
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
return_VOID;
}
void
AcpiNsDeleteNamespaceSubtree (
ACPI_NAMESPACE_NODE *ParentNode)
{
ACPI_NAMESPACE_NODE *ChildNode = NULL;
UINT32 Level = 1;
ACPI_FUNCTION_TRACE (NsDeleteNamespaceSubtree);
if (!ParentNode)
{
return_VOID;
}
/*
* Traverse the tree of objects until we bubble back up
* to where we started.
*/
while (Level > 0)
{
/* Get the next node in this scope (NULL if none) */
ChildNode = AcpiNsGetNextNode (ACPI_TYPE_ANY, ParentNode, ChildNode);
if (ChildNode)
{
/* Found a child node - detach any attached object */
AcpiNsDetachObject (ChildNode);
/* Check if this node has any children */
if (AcpiNsGetNextNode (ACPI_TYPE_ANY, ChildNode, NULL))
{
/*
* There is at least one child of this node,
* visit the node
*/
Level++;
ParentNode = ChildNode;
ChildNode = NULL;
}
}
else
{
/*
* No more children of this parent node.
* Move up to the grandparent.
*/
Level--;
/*
* Now delete all of the children of this parent
* all at the same time.
*/
AcpiNsDeleteChildren (ParentNode);
/* New "last child" is this parent node */
ChildNode = ParentNode;
/* Move up the tree to the grandparent */
ParentNode = AcpiNsGetParentNode (ParentNode);
}
}
return_VOID;
}
