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-rw-r--r--fs/xfs/support/debug.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/fs/xfs/support/debug.c b/fs/xfs/support/debug.c
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+++ b/fs/xfs/support/debug.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 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.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like. Any license provided herein, whether implied or
+ * otherwise, applies only to this software file. Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA 94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "debug.h"
+
+#include <asm/page.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+
+int doass = 1;
+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 char *err_level[XFS_MAX_ERR_LEVEL+1] =
+ {KERN_EMERG, KERN_ALERT, KERN_CRIT,
+ KERN_ERR, KERN_WARNING, KERN_NOTICE,
+ KERN_INFO, KERN_DEBUG};
+
+void
+assfail(char *a, char *f, int l)
+{
+ printk("XFS assertion failed: %s, file: %s, line: %d\n", a, f, l);
+ 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 );
+}
+
+int
+get_thread_id(void)
+{
+ return current->pid;
+}
+
+#endif /* DEBUG || INDUCE_IO_ERRROR || !NO_WANT_RANDOM */
+
+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 (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();
+}
+
+
+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 (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();
+}
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