[PATCH] v9fs: debug and support routines

This part of the patch contains debug and other misc routines.

Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 70 insertions, 0 deletions

diff --git a/fs/9p/debug.h b/fs/9p/debug.h
new file mode 100644
index 000000000000..4445f06919d9
--- /dev/null
+++ b/fs/9p/debug.h
@@ -0,0 +1,70 @@
+/*
+ *  linux/fs/9p/debug.h - V9FS Debug Definitions
+ *
+ *  Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
+ *  Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
+ *
+ *  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:
+ *  Free Software Foundation
+ *  51 Franklin Street, Fifth Floor
+ *  Boston, MA  02111-1301  USA
+ *
+ */
+
+#define DEBUG_ERROR             (1<<0)
+#define DEBUG_CURRENT           (1<<1)
+#define DEBUG_9P                (1<<2)
+#define DEBUG_VFS               (1<<3)
+#define DEBUG_CONV              (1<<4)
+#define DEBUG_MUX               (1<<5)
+#define DEBUG_TRANS             (1<<6)
+#define DEBUG_SLABS             (1<<7)
+
+#define DEBUG_DUMP_PKT          0
+
+extern int v9fs_debug_level;
+
+#define dprintk(level, format, arg...) \
+do {  \
+        if((v9fs_debug_level & level)==level) \
+                printk(KERN_NOTICE "-- %s (%d): " \
+                format , __FUNCTION__, current->pid , ## arg); \
+} while(0)
+
+#define eprintk(level, format, arg...) \
+do { \
+        printk(level "v9fs: %s (%d): " \
+                format , __FUNCTION__, current->pid , ## arg); \
+} while(0)
+
+#if DEBUG_DUMP_PKT
+static inline void dump_data(const unsigned char *data, unsigned int datalen)
+{
+        int i, j;
+        int len = datalen;
+
+        printk(KERN_DEBUG "data ");
+        for (i = 0; i < len; i += 4) {
+                for (j = 0; (j < 4) && (i + j < len); j++)
+                        printk(KERN_DEBUG "%02x", data[i + j]);
+                printk(KERN_DEBUG " ");
+        }
+        printk(KERN_DEBUG "\n");
+}
+#else                           /* DEBUG_DUMP_PKT */
+static inline void dump_data(const unsigned char *data, unsigned int datalen)
+{
+
+}
+#endif                          /* DEBUG_DUMP_PKT */