Some debugging infrastructure, including the ability to adjust the
level of debug output on a per-file basis.
Signed-off-by: Sage Weil <sage@xxxxxxxxxxxx>
---
fs/staging/ceph/ceph_debug.h | 86 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 86 insertions(+), 0 deletions(-)
create mode 100644 fs/staging/ceph/ceph_debug.h
diff --git a/fs/staging/ceph/ceph_debug.h b/fs/staging/ceph/ceph_debug.h
new file mode 100644
index 0000000..70a2521
--- /dev/null
+++ b/fs/staging/ceph/ceph_debug.h
@@ -0,0 +1,86 @@
+#ifndef _FS_CEPH_DEBUG_H
+#define _FS_CEPH_DEBUG_H
+
+#include <linux/string.h>
+
+extern int ceph_debug __read_mostly; /* debug level. */
+extern int ceph_debug_console __read_mostly; /* send debug output to console? */
+extern int ceph_debug_mask __read_mostly;
+
+/*
+ * different debug levels for different modules. These default to -1.
+ * If they are >= 0, then they override the global ceph_debug value.
+ */
+extern int ceph_debug_addr __read_mostly;
+extern int ceph_debug_caps __read_mostly;
+extern int ceph_debug_dir __read_mostly;
+extern int ceph_debug_export __read_mostly;
+extern int ceph_debug_file __read_mostly;
+extern int ceph_debug_inode __read_mostly;
+extern int ceph_debug_ioctl __read_mostly;
+extern int ceph_debug_mdsc __read_mostly;
+extern int ceph_debug_mdsmap __read_mostly;
+extern int ceph_debug_msgr __read_mostly;
+extern int ceph_debug_mon __read_mostly;
+extern int ceph_debug_osdc __read_mostly;
+extern int ceph_debug_osdmap __read_mostly;
+extern int ceph_debug_snap __read_mostly;
+extern int ceph_debug_super __read_mostly;
+extern int ceph_debug_protocol __read_mostly;
+extern int ceph_debug_proc __read_mostly;
+extern int ceph_debug_tools __read_mostly;
+
+#define DOUT_MASK_ADDR 0x00000001
+#define DOUT_MASK_CAPS 0x00000002
+#define DOUT_MASK_DIR 0x00000004
+#define DOUT_MASK_EXPORT 0x00000008
+#define DOUT_MASK_FILE 0x00000010
+#define DOUT_MASK_INODE 0x00000020
+#define DOUT_MASK_IOCTL 0x00000040
+#define DOUT_MASK_MDSC 0x00000080
+#define DOUT_MASK_MDSMAP 0x00000100
+#define DOUT_MASK_MSGR 0x00000200
+#define DOUT_MASK_MON 0x00000400
+#define DOUT_MASK_OSDC 0x00000800
+#define DOUT_MASK_OSDMAP 0x00001000
+#define DOUT_MASK_SNAP 0x00002000
+#define DOUT_MASK_SUPER 0x00004000
+#define DOUT_MASK_PROTOCOL 0x00008000
+#define DOUT_MASK_PROC 0x00010000
+#define DOUT_MASK_TOOLS 0x00020000
+
+#define DOUT_UNMASKABLE 0x80000000
+
+#define _STRINGIFY(x) #x
+#define STRINGIFY(x) _STRINGIFY(x)
+
+#define FMT_PREFIX "%-30.30s: "
+#define FMT_SUFFIX "%s"
+#define LOG_ARGS __FILE__ ":" STRINGIFY(__LINE__)
+#define TRAIL_PARAM ""
+
+#define LOG_LINE FMT_PREFIX fmt, LOG_ARGS, args
+
+#define dout_flag(x, mask, fmt, args...) do { \
+ if (((ceph_debug_mask | DOUT_UNMASKABLE) & mask) && \
+ ((DOUT_VAR >= 0 && (x) <= DOUT_VAR) || \
+ (DOUT_VAR < 0 && (x) <= ceph_debug))) { \
+ if (ceph_debug_console) \
+ printk(KERN_ERR FMT_PREFIX fmt, LOG_ARGS, \
+ args); \
+ else \
+ printk(KERN_DEBUG FMT_PREFIX fmt, LOG_ARGS, \
+ args); \
+ } \
+ } while (0)
+
+#define _dout(x, fmt, args...) dout_flag((x), DOUT_MASK, fmt FMT_SUFFIX, args)
+
+#define _derr(x, fmt, args...) do { \
+ printk(KERN_ERR FMT_PREFIX fmt FMT_SUFFIX, LOG_ARGS, args); \
+ } while (0)
+
+#define dout(x, args...) _dout((x), args, TRAIL_PARAM)
+#define derr(x, args...) _derr((x), args, TRAIL_PARAM)
+
+#endif
--
1.5.6.5
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