md/dm-vdo/admin-state.c

191  * Will notify the operation waiter if there is one. This method should be used for operations
203 	if (state->waiter != NULL)
204 		vdo_set_completion_result(state->waiter, result);
208 		if (state->waiter != NULL)
209 			vdo_launch_completion(vdo_forget(state->waiter));
217  * @waiter A completion to notify when the operation is complete; may be NULL.
224 					struct vdo_completion *waiter,
235 	} else if (state->waiter != NULL) {
237 						"Can't start %s with extant waiter",
240 		state->waiter = waiter;
254 	if (waiter != NULL)
255 		vdo_continue_completion(waiter, result);
262  * @waiter     A completion to notify when the operation is complete.
269 						struct vdo_completion *waiter,
272 	return (begin_operation(state, operation, waiter, initiator) == VDO_SUCCESS);
280  * @waiter The completion to notify of the error; may be NULL.
282  * If the result failed, log an invalid state error and, if there is a waiter, notify it.
287 		       struct vdo_completion *waiter)
296 	if (waiter != NULL)
297 		vdo_continue_completion(waiter, result);
304  * @waiter The completion to finish with an error if the operation is not a drain.
309 						    struct vdo_completion *waiter)
311 	return check_code(operation->draining, operation, "drain operation", waiter);
317  * @waiter The completion to notify when the drain is complete.
320  * Return: true if the drain was initiated, if not the waiter will be notified.
324 			struct vdo_completion *waiter, vdo_admin_initiator_fn initiator)
328 	if (!assert_vdo_drain_operation(operation, waiter))
332 		vdo_launch_completion(waiter);
339 		vdo_continue_completion(waiter, VDO_INVALID_ADMIN_STATE);
343 	return start_operation(state, operation, waiter, initiator);
349  * Return: true if the state was draining; will notify the waiter if so.
359  * Return: true if the state was draining; will notify the waiter if so.
368  * @waiter The completion to finish with an error if the operation is not a load.
373 			       struct vdo_completion *waiter)
375 	return check_code(operation->loading, operation, "load operation", waiter);
381  * @waiter The completion to notify when the load is complete (may be NULL).
384  * Return: true if the load was initiated, if not the waiter will be notified.
388 		       struct vdo_completion *waiter, vdo_admin_initiator_fn initiator)
390 	return (vdo_assert_load_operation(operation, waiter) &&
391 		start_operation(state, operation, waiter, initiator));
397  * Return: true if the state was loading; will notify the waiter if so.
408  * Return: true if the state was loading; will notify the waiter if so.
417  * @waiter The completion to notify if the operation is not a resume operation; may be NULL.
422 						     struct vdo_completion *waiter)
425 			  "resume operation", waiter);
431  * @waiter The completion to notify when the resume is complete (may be NULL).
434  * Return: true if the resume was initiated, if not the waiter will be notified.
438 			struct vdo_completion *waiter, vdo_admin_initiator_fn initiator)
440 	return (assert_vdo_resume_operation(operation, waiter) &&
441 		start_operation(state, operation, waiter, initiator));
447  * Return: true if the state was resuming; will notify the waiter if so.
458  * Return: true if the state was resuming; will notify the waiter if so.
493  * @waiter the completion to notify when the operation completes or fails to start; may be NULL.
500 				    struct vdo_completion *waiter,
503 	return (check_code(operation->operating, operation, "operation", waiter) ?
504 		begin_operation(state, operation, waiter, initiator) :