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/*

 *      linux/kernel/softirq.c

 *

 *      Copyright (C) 1992 Linus Torvalds

 *

 * do_bottom_half() runs at normal kernel priority: all interrupts

 * enabled.  do_bottom_half() is atomic with respect to itself: a

 * bottom_half handler need not be re-entrant.

 */

#include <linux/ptrace.h>

#include <linux/errno.h>

#include <linux/kernel_stat.h>

#include <linux/signal.h>

#include <linux/sched.h>

#include <linux/interrupt.h>

#include <linux/mm.h>

#include <asm/system.h>

#include <asm/io.h>

#include <asm/irq.h>

#include <asm/bitops.h>

unsigned long intr_count = 0;

int bh_mask_count[32];

unsigned long bh_active = 0;

unsigned long bh_mask = 0;

void (*bh_base[32])(void);

asmlinkage void do_bottom_half(void)

{

        unsigned long active;

        unsigned long mask, left;

        void (**bh)(void);

        sti();

        bh = bh_base;

        active = bh_active & bh_mask;

        for (mask = 1, left = ~0 ; left & active ; bh++,mask += mask,left += left) {

                if (mask & active) {

                        void (*fn)(void);

                        bh_active &= ~mask;

                        fn = *bh;

                        if (!fn)

                                goto bad_bh;

                        fn();

                }

        }

/* SIMON: forbidden change of source file - execution error */

cli();

        return;

bad_bh:

        printk ("irq.c:bad bottom half entry %08lx\n", mask);

/* SIMON: forbidden change of source file - execution error */

cli();

}