diff options
Diffstat (limited to 'drivers/acpi/namespace/nsalloc.c')
| -rw-r--r-- | drivers/acpi/namespace/nsalloc.c | 104 |
1 files changed, 11 insertions, 93 deletions
diff --git a/drivers/acpi/namespace/nsalloc.c b/drivers/acpi/namespace/nsalloc.c index acd4b6732ac..8b921c96d6a 100644 --- a/drivers/acpi/namespace/nsalloc.c +++ b/drivers/acpi/namespace/nsalloc.c @@ -47,9 +47,6 @@ #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME("nsalloc") -/* Local prototypes */ -static void acpi_ns_remove_reference(struct acpi_namespace_node *node); - /******************************************************************************* * * FUNCTION: acpi_ns_create_node @@ -61,14 +58,13 @@ static void acpi_ns_remove_reference(struct acpi_namespace_node *node); * DESCRIPTION: Create a namespace node * ******************************************************************************/ - struct acpi_namespace_node *acpi_ns_create_node(u32 name) { struct acpi_namespace_node *node; ACPI_FUNCTION_TRACE("ns_create_node"); - node = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_namespace_node)); + node = acpi_os_acquire_object(acpi_gbl_namespace_cache); if (!node) { return_PTR(NULL); } @@ -76,9 +72,7 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name) ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++); node->name.integer = name; - node->reference_count = 1; ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED); - return_PTR(node); } @@ -139,10 +133,10 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); /* - * Detach an object if there is one then delete the node + * Detach an object if there is one, then delete the node */ acpi_ns_detach_object(node); - ACPI_FREE(node); + (void)acpi_os_release_object(acpi_gbl_namespace_cache, node); return_VOID; } @@ -217,16 +211,6 @@ void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namesp acpi_ut_get_node_name(parent_node), acpi_ut_get_type_name(parent_node->type), parent_node)); - - /* - * Increment the reference count(s) of all parents up to - * the root! - */ - while ((node = acpi_ns_get_parent_node(node)) != NULL) { - node->reference_count++; - } - - return_VOID; } /******************************************************************************* @@ -246,7 +230,6 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node) { struct acpi_namespace_node *child_node; struct acpi_namespace_node *next_node; - struct acpi_namespace_node *node; u8 flags; ACPI_FUNCTION_TRACE_PTR("ns_delete_children", parent_node); @@ -292,26 +275,10 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node) */ acpi_ns_detach_object(child_node); - /* - * Decrement the reference count(s) of all parents up to - * the root! (counts were incremented when the node was created) - */ - node = child_node; - while ((node = acpi_ns_get_parent_node(node)) != NULL) { - node->reference_count--; - } - - /* There should be only one reference remaining on this node */ - - if (child_node->reference_count != 1) { - ACPI_WARNING((AE_INFO, - "Existing references (%d) on node being deleted (%p)", - child_node->reference_count, child_node)); - } - /* Now we can delete the node */ - ACPI_FREE(child_node); + (void)acpi_os_release_object(acpi_gbl_namespace_cache, + child_node); /* And move on to the next child in the list */ @@ -358,8 +325,9 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node) /* Get the next node in this scope (NULL if none) */ - child_node = acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, - child_node); + child_node = + acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, + child_node); if (child_node) { /* Found a child node - detach any attached object */ @@ -406,57 +374,6 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node) /******************************************************************************* * - * FUNCTION: acpi_ns_remove_reference - * - * PARAMETERS: Node - Named node whose reference count is to be - * decremented - * - * RETURN: None. - * - * DESCRIPTION: Remove a Node reference. Decrements the reference count - * of all parent Nodes up to the root. Any node along - * the way that reaches zero references is freed. - * - ******************************************************************************/ - -static void acpi_ns_remove_reference(struct acpi_namespace_node *node) -{ - struct acpi_namespace_node *parent_node; - struct acpi_namespace_node *this_node; - - ACPI_FUNCTION_ENTRY(); - - /* - * Decrement the reference count(s) of this node and all - * nodes up to the root, Delete anything with zero remaining references. - */ - this_node = node; - while (this_node) { - - /* Prepare to move up to parent */ - - parent_node = acpi_ns_get_parent_node(this_node); - - /* Decrement the reference count on this node */ - - this_node->reference_count--; - - /* Delete the node if no more references */ - - if (!this_node->reference_count) { - - /* Delete all children and delete the node */ - - acpi_ns_delete_children(this_node); - acpi_ns_delete_node(this_node); - } - - this_node = parent_node; - } -} - -/******************************************************************************* - * * FUNCTION: acpi_ns_delete_namespace_by_owner * * PARAMETERS: owner_id - All nodes with this owner will be deleted @@ -482,9 +399,9 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id) return_VOID; } + deletion_node = NULL; parent_node = acpi_gbl_root_node; child_node = NULL; - deletion_node = NULL; level = 1; /* @@ -501,7 +418,8 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id) child_node); if (deletion_node) { - acpi_ns_remove_reference(deletion_node); + acpi_ns_delete_children(deletion_node); + acpi_ns_delete_node(deletion_node); deletion_node = NULL; } |