linux/fs/xfs/support/debug.c

116 lines
2.9 KiB
C

/*
* 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 <xfs.h>
#include "debug.h"
/* xfs_mount.h drags a lot of crap in, sorry.. */
#include "xfs_sb.h"
#include "xfs_inum.h"
#include "xfs_ag.h"
#include "xfs_dmapi.h"
#include "xfs_mount.h"
static char message[1024]; /* 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 = vsnprintf(message, sizeof(message), fp, ap);
if (len >= sizeof(message))
len = sizeof(message) - 1;
if (message[len-1] == '\n')
message[len-1] = 0;
printk("%s%s\n", err_level[level], message);
va_end(ap);
spin_unlock_irqrestore(&xfs_err_lock,flags);
BUG_ON(level == CE_PANIC);
}
void
xfs_fs_vcmn_err(
int level,
struct xfs_mount *mp,
char *fmt,
va_list ap)
{
unsigned long flags;
int len = 0;
level &= XFS_ERR_MASK;
if (level > XFS_MAX_ERR_LEVEL)
level = XFS_MAX_ERR_LEVEL;
spin_lock_irqsave(&xfs_err_lock,flags);
if (mp) {
len = sprintf(message, "Filesystem \"%s\": ", mp->m_fsname);
/*
* Skip the printk if we can't print anything useful
* due to an over-long device name.
*/
if (len >= sizeof(message))
goto out;
}
len = vsnprintf(message + len, sizeof(message) - len, fmt, ap);
if (len >= sizeof(message))
len = sizeof(message) - 1;
if (message[len-1] == '\n')
message[len-1] = 0;
printk("%s%s\n", err_level[level], message);
out:
spin_unlock_irqrestore(&xfs_err_lock,flags);
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();
}
void
xfs_hex_dump(void *p, int length)
{
print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1);
}