/* * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write the Free Software Foundation, * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */#include "debug.h"#include "spin.h"#include <asm/page.h>#include <linux/sched.h>#include <linux/kernel.h> static char		message[256];	/* keep it off the stack */static DEFINE_SPINLOCK(xfs_err_lock); /* Translate from CE_FOO to KERN_FOO, err_level(CE_FOO) == KERN_FOO */#define XFS_MAX_ERR_LEVEL	7#define XFS_ERR_MASK		((1 << 3) - 1)static const char * const	err_level[XFS_MAX_ERR_LEVEL+1] =					{KERN_EMERG, KERN_ALERT, KERN_CRIT,					 KERN_ERR, KERN_WARNING, KERN_NOTICE,					 KERN_INFO, KERN_DEBUG}; voidcmn_err(register int level, char *fmt, ...){	char	*fp = fmt;	int	len;	ulong	flags;	va_list	ap; 	level &= XFS_ERR_MASK;	if (level > XFS_MAX_ERR_LEVEL)		level = XFS_MAX_ERR_LEVEL;	spin_lock_irqsave(&xfs_err_lock,flags);	va_start(ap, fmt);	if (*fmt == '!') fp++;	len = vsprintf(message, fp, ap);	if (level != CE_DEBUG && message[len-1] != '\n')		strcat(message, "\n");	printk("%s%s", err_level[level], message);	va_end(ap);	spin_unlock_irqrestore(&xfs_err_lock,flags); 	if (level == CE_PANIC)		BUG();} voidicmn_err(register int level, char *fmt, va_list ap){	ulong	flags;	int	len; 	level &= XFS_ERR_MASK;	if(level > XFS_MAX_ERR_LEVEL)		level = XFS_MAX_ERR_LEVEL;	spin_lock_irqsave(&xfs_err_lock,flags);	len = vsprintf(message, fmt, ap);	if (level != CE_DEBUG && message[len-1] != '\n')		strcat(message, "\n");	spin_unlock_irqrestore(&xfs_err_lock,flags);	printk("%s%s", err_level[level], message);	if (level == CE_PANIC)		BUG();} voidassfail(char *expr, char *file, int line){	printk("Assertion failed: %s, file: %s, line: %d\n", expr, file, line);	BUG();} #if ((defined(DEBUG) || defined(INDUCE_IO_ERRROR)) && !defined(NO_WANT_RANDOM))unsigned long random(void){	static unsigned long	RandomValue = 1;	/* cycles pseudo-randomly through all values between 1 and 2^31 - 2 */	register long	rv = RandomValue;	register long	lo;	register long	hi; 	hi = rv / 127773;	lo = rv % 127773;	rv = 16807 * lo - 2836 * hi;	if (rv <= 0) rv += 2147483647;	return RandomValue = rv;}#endif /* DEBUG || INDUCE_IO_ERRROR || !NO_WANT_RANDOM */