1 files changed, 122 insertions, 0 deletions

diff --git a/fs/jfs/jfs_debug.h b/fs/jfs/jfs_debug.h
new file mode 100644
index 000000000000..a38079ae1e00
--- /dev/null
+++ b/fs/jfs/jfs_debug.h
@@ -0,0 +1,122 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   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; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will 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 to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _H_JFS_DEBUG
+#define _H_JFS_DEBUG
+
+/*
+ *      jfs_debug.h
+ *
+ * global debug message, data structure/macro definitions
+ * under control of CONFIG_JFS_DEBUG, CONFIG_JFS_STATISTICS;
+ */
+
+/*
+ * Create /proc/fs/jfs if procfs is enabled andeither
+ * CONFIG_JFS_DEBUG or CONFIG_JFS_STATISTICS is defined
+ */
+#if defined(CONFIG_PROC_FS) && (defined(CONFIG_JFS_DEBUG) || defined(CONFIG_JFS_STATISTICS))
+        #define PROC_FS_JFS
+#endif
+
+/*
+ *      assert with traditional printf/panic
+ */
+#ifdef CONFIG_KERNEL_ASSERTS
+/* kgdb stuff */
+#define assert(p) KERNEL_ASSERT(#p, p)
+#else
+#define assert(p) do {  \
+        if (!(p)) {     \
+                printk(KERN_CRIT "BUG at %s:%d assert(%s)\n",   \
+                       __FILE__, __LINE__, #p);                 \
+                BUG();  \
+        }               \
+} while (0)
+#endif
+
+/*
+ *      debug ON
+ *      --------
+ */
+#ifdef CONFIG_JFS_DEBUG
+#define ASSERT(p) assert(p)
+
+/* printk verbosity */
+#define JFS_LOGLEVEL_ERR 1
+#define JFS_LOGLEVEL_WARN 2
+#define JFS_LOGLEVEL_DEBUG 3
+#define JFS_LOGLEVEL_INFO 4
+
+extern int jfsloglevel;
+
+/* dump memory contents */
+extern void dump_mem(char *label, void *data, int length);
+
+/* information message: e.g., configuration, major event */
+#define jfs_info(fmt, arg...) do {                      \
+        if (jfsloglevel >= JFS_LOGLEVEL_INFO)           \
+                printk(KERN_INFO fmt "\n", ## arg);     \
+} while (0)
+
+/* debug message: ad hoc */
+#define jfs_debug(fmt, arg...) do {                     \
+        if (jfsloglevel >= JFS_LOGLEVEL_DEBUG)          \
+                printk(KERN_DEBUG fmt "\n", ## arg);    \
+} while (0)
+
+/* warn message: */
+#define jfs_warn(fmt, arg...) do {                      \
+        if (jfsloglevel >= JFS_LOGLEVEL_WARN)           \
+                printk(KERN_WARNING fmt "\n", ## arg);  \
+} while (0)
+
+/* error event message: e.g., i/o error */
+#define jfs_err(fmt, arg...) do {                       \
+        if (jfsloglevel >= JFS_LOGLEVEL_ERR)            \
+                printk(KERN_ERR fmt "\n", ## arg);      \
+} while (0)
+
+/*
+ *      debug OFF
+ *      ---------
+ */
+#else                           /* CONFIG_JFS_DEBUG */
+#define dump_mem(label,data,length) do {} while (0)
+#define ASSERT(p) do {} while (0)
+#define jfs_info(fmt, arg...) do {} while (0)
+#define jfs_debug(fmt, arg...) do {} while (0)
+#define jfs_warn(fmt, arg...) do {} while (0)
+#define jfs_err(fmt, arg...) do {} while (0)
+#endif                          /* CONFIG_JFS_DEBUG */
+
+/*
+ *      statistics
+ *      ----------
+ */
+#ifdef  CONFIG_JFS_STATISTICS
+#define INCREMENT(x)            ((x)++)
+#define DECREMENT(x)            ((x)--)
+#define HIGHWATERMARK(x,y)      ((x) = max((x), (y)))
+#else
+#define INCREMENT(x)
+#define DECREMENT(x)
+#define HIGHWATERMARK(x,y)
+#endif                          /* CONFIG_JFS_STATISTICS */
+
+#endif                          /* _H_JFS_DEBUG */