/*
 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code 
 * as defined in and that are subject to the Apple Public Source License 
 * Version 2.0 (the 'License'). You may not use this file except in 
 * compliance with the License.  The rights granted to you under the 
 * License may not be used to create, or enable the creation or 
 * redistribution of, unlawful or unlicensed copies of an Apple operating 
 * system, or to circumvent, violate, or enable the circumvention or 
 * violation of, any terms of an Apple operating system software license 
 * agreement.
 *
 * Please obtain a copy of the License at 
 * http://www.opensource.apple.com/apsl/ and read it before using this 
 * file.
 *
 * The Original Code and all software distributed under the License are 
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * Please see the License for the specific language governing rights and 
 * limitations under the License.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
/*      
 *	        File:	kern/task_swap.c
 *      
 *	Task residency management primitives implementation.
 */
#include <mach_assert.h>
#include <task_swapper.h>

#include <kern/spl.h>
#include <kern/lock.h>
#include <kern/queue.h>
#include <kern/host.h>
#include <kern/task.h>
#include <kern/task_swap.h>
#include <kern/thread.h>
#include <kern/host_statistics.h>
#include <kern/misc_protos.h>
#include <kern/assert.h>
#include <mach/policy.h>

#include <ipc/ipc_port.h>	/* We use something from in here */

/*
 *	task_swappable:	[exported]
 *
 *	Make a task swappable or non-swappable. If made non-swappable,
 *	it will be swapped in.
 */
kern_return_t
task_swappable(
	host_priv_t host_priv,
	task_t task,
	__unused boolean_t make_swappable)
{
	if (host_priv == HOST_PRIV_NULL)
		return (KERN_INVALID_ARGUMENT);

	if (task == TASK_NULL)
		return (KERN_INVALID_ARGUMENT);

	/*
	 * We don't support swapping, this call is purely advisory.
	 */
	return (KERN_SUCCESS);
}
