22  *              object_size     - Size of each cached object
24  *              return_cache    - Where the new cache object is returned
28  * DESCRIPTION: Create a cache object
44 	/* Create the cache object */  in acpi_os_create_cache()
51 	/* Populate the cache object and return it */  in acpi_os_create_cache()
66  * PARAMETERS:  cache           - Handle to cache object
94 		/* Delete and unlink one cached state object */  in acpi_os_purge_cache()
111  * PARAMETERS:  cache           - Handle to cache object
116  *              cache object.
133 	/* Now we can delete the cache object */  in acpi_os_delete_cache()
143  * PARAMETERS:  cache       - Handle to cache object
144  *              object      - The object to be released
148  * DESCRIPTION: Release an object to the specified cache. If cache is full,
149  *              the object is deleted.
153 acpi_status acpi_os_release_object(struct acpi_memory_list *cache, void *object)  in acpi_os_release_object()  argument
159 	if (!cache || !object) {  in acpi_os_release_object()
163 	/* If cache is full, just free this object */  in acpi_os_release_object()
166 		ACPI_FREE(object);  in acpi_os_release_object()
170 	/* Otherwise put this object back into the cache */  in acpi_os_release_object()
178 		/* Mark the object as cached */  in acpi_os_release_object()
180 		memset(object, 0xCA, cache->object_size);  in acpi_os_release_object()
181 		ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_CACHED);  in acpi_os_release_object()
183 		/* Put the object at the head of the cache list */  in acpi_os_release_object()
185 		ACPI_SET_DESCRIPTOR_PTR(object, cache->list_head);  in acpi_os_release_object()
186 		cache->list_head = object;  in acpi_os_release_object()
199  * PARAMETERS:  cache           - Handle to cache object
201  * RETURN:      the acquired object. NULL on error
203  * DESCRIPTION: Get an object from the specified cache. If cache is empty,
204  *              the object is allocated.
211 	void *object;  in acpi_os_acquire_object()  local
230 		/* There is an object available, use it */  in acpi_os_acquire_object()
232 		object = cache->list_head;  in acpi_os_acquire_object()
233 		cache->list_head = ACPI_GET_DESCRIPTOR_PTR(object);  in acpi_os_acquire_object()
239 				      "%s: Object %p from %s cache\n",  in acpi_os_acquire_object()
240 				      ACPI_GET_FUNCTION_NAME, object,  in acpi_os_acquire_object()
248 		/* Clear (zero) the previously used Object */  in acpi_os_acquire_object()
250 		memset(object, 0, cache->object_size);  in acpi_os_acquire_object()
252 		/* The cache is empty, create a new object */  in acpi_os_acquire_object()
271 		object = ACPI_ALLOCATE_ZEROED(cache->object_size);  in acpi_os_acquire_object()
272 		if (!object) {  in acpi_os_acquire_object()
277 	return_PTR(object);  in acpi_os_acquire_object()