* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2013, Intel Corporation.
+ * Copyright (c) 2012, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define CDEBUG_DEFAULT_MAX_DELAY (cfs_time_seconds(600)) /* jiffies */
#define CDEBUG_DEFAULT_MIN_DELAY ((cfs_time_seconds(1) + 1) / 2) /* jiffies */
#define CDEBUG_DEFAULT_BACKOFF 2
-typedef struct {
- cfs_time_t cdls_next;
- unsigned int cdls_delay;
- int cdls_count;
-} cfs_debug_limit_state_t;
+struct cfs_debug_limit_state {
+ unsigned long cdls_next;
+ unsigned int cdls_delay;
+ int cdls_count;
+};
struct libcfs_debug_msg_data {
- const char *msg_file;
- const char *msg_fn;
- int msg_subsys;
- int msg_line;
- int msg_mask;
- cfs_debug_limit_state_t *msg_cdls;
+ const char *msg_file;
+ const char *msg_fn;
+ int msg_subsys;
+ int msg_line;
+ int msg_mask;
+ struct cfs_debug_limit_state *msg_cdls;
};
#define LIBCFS_DEBUG_MSG_DATA_INIT(data, mask, cdls) \
.msg_cdls = (cdls) }; \
dataname.msg_mask = (mask);
-#if defined(__KERNEL__) || (defined(__arch_lib__) && !defined(LUSTRE_UTILS))
+#ifdef __KERNEL__
-#ifdef CDEBUG_ENABLED
+# ifdef CDEBUG_ENABLED
/**
* Filters out logging messages based on mask and subsystem.
((libcfs_debug & mask) && (libcfs_subsystem_debug & subsystem));
}
-#define __CDEBUG(cdls, mask, format, ...) \
+# define __CDEBUG(cdls, mask, format, ...) \
do { \
static struct libcfs_debug_msg_data msgdata; \
\
} \
} while (0)
-#define CDEBUG(mask, format, ...) __CDEBUG(NULL, mask, format, ## __VA_ARGS__)
+# define CDEBUG(mask, format, ...) __CDEBUG(NULL, mask, format, ## __VA_ARGS__)
-#define CDEBUG_LIMIT(mask, format, ...) \
-do { \
- static cfs_debug_limit_state_t cdls; \
- \
- __CDEBUG(&cdls, mask, format, ## __VA_ARGS__);\
+# define CDEBUG_LIMIT(mask, format, ...) \
+do { \
+ static struct cfs_debug_limit_state cdls; \
+ \
+ __CDEBUG(&cdls, mask, format, ## __VA_ARGS__); \
} while (0)
-#else /* !CDEBUG_ENABLED */
+# else /* !CDEBUG_ENABLED */
static inline int cfs_cdebug_show(unsigned int mask, unsigned int subsystem)
{
return 0;
}
-#define CDEBUG(mask, format, ...) (void)(0)
-#define CDEBUG_LIMIT(mask, format, ...) (void)(0)
-#warning "CDEBUG IS DISABLED. THIS SHOULD NEVER BE DONE FOR PRODUCTION!"
-#endif
+# define CDEBUG(mask, format, ...) (void)(0)
+# define CDEBUG_LIMIT(mask, format, ...) (void)(0)
+# warning "CDEBUG IS DISABLED. THIS SHOULD NEVER BE DONE FOR PRODUCTION!"
+# endif /* CDEBUG_ENABLED */
-#else /* !__KERNEL__ && (!__arch_lib__ || LUSTRE_UTILS) */
+#else /* !__KERNEL__ */
static inline int cfs_cdebug_show(unsigned int mask, unsigned int subsystem)
{
return 0;
}
-#define CDEBUG(mask, format, ...) \
+# define CDEBUG(mask, format, ...) \
do { \
if (((mask) & D_CANTMASK) != 0) \
fprintf(stderr, "(%s:%d:%s()) " format, \
__FILE__, __LINE__, __FUNCTION__, ## __VA_ARGS__);\
} while (0)
-#define CDEBUG_LIMIT CDEBUG
+# define CDEBUG_LIMIT CDEBUG
-#endif /* !__KERNEL__ ... */
+#endif /* __KERNEL__ */
+/*
+ * Lustre Error Checksum: calculates checksum
+ * of Hex number by XORing each bit.
+ */
+#define LERRCHKSUM(hexnum) (((hexnum) & 0xf) ^ ((hexnum) >> 4 & 0xf) ^ \
+ ((hexnum) >> 8 & 0xf))
#define CWARN(format, ...) CDEBUG_LIMIT(D_WARNING, format, ## __VA_ARGS__)
#define CERROR(format, ...) CDEBUG_LIMIT(D_ERROR, format, ## __VA_ARGS__)
#define LCONSOLE_EMERG(format, ...) CDEBUG(D_CONSOLE | D_EMERG, format, ## __VA_ARGS__)
-#ifdef CDEBUG_ENTRY_EXIT
+#if defined(CDEBUG_ENTRY_EXIT) && defined(__KERNEL__)
void libcfs_log_goto(struct libcfs_debug_msg_data *goto_data,
- const char *label, long_ptr_t rc);
+ const char *label, long rc);
# define GOTO(label, rc) \
do { \
if (cfs_cdebug_show(D_TRACE, DEBUG_SUBSYSTEM)) { \
LIBCFS_DEBUG_MSG_DATA_DECL(_goto_data, D_TRACE, NULL); \
- libcfs_log_goto(&_goto_data, #label, (long_ptr_t)(rc)); \
+ libcfs_log_goto(&_goto_data, #label, (long)(rc)); \
} else { \
(void)(rc); \
} \
long libcfs_log_return(struct libcfs_debug_msg_data *, long rc);
-#if BITS_PER_LONG > 32
-#define RETURN(rc) \
+# if BITS_PER_LONG > 32
+# define RETURN(rc) \
do { \
- EXIT_NESTING; \
if (cfs_cdebug_show(D_TRACE, DEBUG_SUBSYSTEM)) { \
LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_TRACE, NULL); \
return (typeof(rc))libcfs_log_return(&msgdata, \
\
return (rc); \
} while (0)
-#else /* BITS_PER_LONG == 32 */
+# else /* BITS_PER_LONG == 32 */
/* We need an on-stack variable, because we cannot case a 32-bit pointer
* directly to (long long) without generating a complier warning/error, yet
* casting directly to (long) will truncate 64-bit return values. The log
* values will print as 32-bit values, but they always have been. LU-1436
*/
-#define RETURN(rc) \
+# define RETURN(rc) \
do { \
- EXIT_NESTING; \
if (cfs_cdebug_show(D_TRACE, DEBUG_SUBSYSTEM)) { \
typeof(rc) __rc = (rc); \
LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_TRACE, NULL); \
- libcfs_log_return(&msgdata, (long_ptr_t)__rc); \
+ libcfs_log_return(&msgdata, (long)__rc); \
return __rc; \
} \
\
return (rc); \
} while (0)
-#endif /* BITS_PER_LONG > 32 */
+# endif /* BITS_PER_LONG > 32 */
-#define ENTRY \
-ENTRY_NESTING; \
-do { \
- CDEBUG(D_TRACE, "Process entered\n"); \
-} while (0)
+# define ENTRY CDEBUG(D_TRACE, "Process entered\n")
+# define EXIT CDEBUG(D_TRACE, "Process leaving\n")
-#define EXIT \
-do { \
- CDEBUG(D_TRACE, "Process leaving\n"); \
- EXIT_NESTING; \
-} while(0)
-#else /* !CDEBUG_ENTRY_EXIT */
+#else /* !CDEBUG_ENTRY_EXIT || !__KERNEL__ */
# define GOTO(label, rc) \
do { \
goto label; \
} while (0)
-#define RETURN(rc) return (rc)
-#define ENTRY do { } while (0)
-#define EXIT do { } while (0)
+# define RETURN(rc) return (rc)
+# define ENTRY do { } while (0)
+# define EXIT do { } while (0)
-#endif /* !CDEBUG_ENTRY_EXIT */
+#endif /* CDEBUG_ENTRY_EXIT && __KERNEL__ */
#define RETURN_EXIT \
do { \
va_list args, const char *format2, ...)
__attribute__ ((format (printf, 4, 5)));
+#ifdef __KERNEL__
/* other external symbols that tracefile provides: */
extern int cfs_trace_copyin_string(char *knl_buffer, int knl_buffer_nob,
const char __user *usr_buffer,
int usr_buffer_nob);
extern int cfs_trace_copyout_string(char __user *usr_buffer, int usr_buffer_nob,
const char *knl_buffer, char *append);
+#endif /* __KERNEL__ */
#define LIBCFS_DEBUG_FILE_PATH_DEFAULT "/tmp/lustre-log"