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/*
* 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};
void
cmn_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);
BUG_ON(level == CE_PANIC);
}
void
icmn_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);
BUG_ON(level == CE_PANIC);
}
void
assfail(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 */
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