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/*

 *  linux/mm/vmscan.c

 *

 *  Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds

 *

 *  Swap reorganised 29.12.95, Stephen Tweedie.

 *  kswapd added: 7.1.96  sct

 *  Version: $Id: vmscan.c,v 1.1.1.1 2001-09-10 07:44:46 simons Exp $

 */

/*

 * uClinux revisions for NO_MM

 * Copyright (C) 1998        Kenneth Albanowski <kjahds@kjahds.com>,

 *                           The Silver Hammer Group, Ltd.

 * Copyright (C) 1998, 1999  D. Jeff Dionne <jeff@uclinux.org>,

 *                           Rt-Control, Inc.

 */

#include <linux/mm.h>

#include <linux/sched.h>

#include <linux/head.h>

#include <linux/kernel.h>

#include <linux/kernel_stat.h>

#include <linux/errno.h>

#include <linux/string.h>

#include <linux/stat.h>

#include <linux/swap.h>

#include <linux/fs.h>

#include <linux/swapctl.h>

#include <linux/pagemap.h>

#include <linux/smp_lock.h>

/*

 * We can't swap, so all we can do is shrink mmap.

 */

int try_to_free_page(int priority, int dma, int wait)

{

        int i=6;

        int stop, can_do_io;

#ifdef DEBUG

        printk("trying to find free page within pid %d...\n", current->pid);

#endif

        /* we don't try as hard if we're not waiting.. */

        stop = 3;

        can_do_io = 1;

        if (wait)

                stop = 0;

        if (priority == GFP_IO)

                can_do_io = 0;

        do {

#ifdef DEBUG

                printk("Attempting to shrink_mmap\n");

#endif

                if (shrink_mmap(i, dma, can_do_io))

                        return 1;

                i--;

        } while ((i - stop) >= 0);

        printk("Failed to free page\n");

        return 0;

}

/*

 * In case someone wants to re-implement swapping...

 */

void init_swap_timer(void)

{

}