forked from luck/tmp_suning_uos_patched
9ab5aa911a
This patch converts two if () BUG(); construct to BUG_ON(); which occupies less space, uses unlikely and is safer when BUG() is disabled. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/*
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* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "debug.h"
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#include "spin.h"
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#include <asm/page.h>
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#include <linux/sched.h>
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#include <linux/kernel.h>
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static char message[256]; /* keep it off the stack */
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static DEFINE_SPINLOCK(xfs_err_lock);
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/* Translate from CE_FOO to KERN_FOO, err_level(CE_FOO) == KERN_FOO */
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#define XFS_MAX_ERR_LEVEL 7
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#define XFS_ERR_MASK ((1 << 3) - 1)
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static const char * const err_level[XFS_MAX_ERR_LEVEL+1] =
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{KERN_EMERG, KERN_ALERT, KERN_CRIT,
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KERN_ERR, KERN_WARNING, KERN_NOTICE,
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KERN_INFO, KERN_DEBUG};
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void
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cmn_err(register int level, char *fmt, ...)
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{
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char *fp = fmt;
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int len;
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ulong flags;
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va_list ap;
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level &= XFS_ERR_MASK;
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if (level > XFS_MAX_ERR_LEVEL)
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level = XFS_MAX_ERR_LEVEL;
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spin_lock_irqsave(&xfs_err_lock,flags);
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va_start(ap, fmt);
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if (*fmt == '!') fp++;
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len = vsprintf(message, fp, ap);
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if (level != CE_DEBUG && message[len-1] != '\n')
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strcat(message, "\n");
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printk("%s%s", err_level[level], message);
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va_end(ap);
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spin_unlock_irqrestore(&xfs_err_lock,flags);
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BUG_ON(level == CE_PANIC);
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}
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void
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icmn_err(register int level, char *fmt, va_list ap)
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{
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ulong flags;
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int len;
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level &= XFS_ERR_MASK;
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if(level > XFS_MAX_ERR_LEVEL)
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level = XFS_MAX_ERR_LEVEL;
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spin_lock_irqsave(&xfs_err_lock,flags);
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len = vsprintf(message, fmt, ap);
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if (level != CE_DEBUG && message[len-1] != '\n')
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strcat(message, "\n");
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spin_unlock_irqrestore(&xfs_err_lock,flags);
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printk("%s%s", err_level[level], message);
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BUG_ON(level == CE_PANIC);
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}
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void
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assfail(char *expr, char *file, int line)
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{
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printk("Assertion failed: %s, file: %s, line: %d\n", expr, file, line);
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BUG();
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}
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#if ((defined(DEBUG) || defined(INDUCE_IO_ERRROR)) && !defined(NO_WANT_RANDOM))
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unsigned long random(void)
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{
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static unsigned long RandomValue = 1;
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/* cycles pseudo-randomly through all values between 1 and 2^31 - 2 */
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register long rv = RandomValue;
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register long lo;
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register long hi;
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hi = rv / 127773;
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lo = rv % 127773;
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rv = 16807 * lo - 2836 * hi;
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if (rv <= 0) rv += 2147483647;
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return RandomValue = rv;
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}
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#endif /* DEBUG || INDUCE_IO_ERRROR || !NO_WANT_RANDOM */
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