Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Matthew Sakai | 252 | 73.26% | 1 | 25.00% |
Mike Snitzer | 92 | 26.74% | 3 | 75.00% |
Total | 344 | 4 |
/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2023 Red Hat */ #ifndef VDO_LOGGER_H #define VDO_LOGGER_H #include <linux/kern_levels.h> #include <linux/module.h> #include <linux/ratelimit.h> #include <linux/device-mapper.h> /* Custom logging utilities for UDS */ enum { VDO_LOG_EMERG = LOGLEVEL_EMERG, VDO_LOG_ALERT = LOGLEVEL_ALERT, VDO_LOG_CRIT = LOGLEVEL_CRIT, VDO_LOG_ERR = LOGLEVEL_ERR, VDO_LOG_WARNING = LOGLEVEL_WARNING, VDO_LOG_NOTICE = LOGLEVEL_NOTICE, VDO_LOG_INFO = LOGLEVEL_INFO, VDO_LOG_DEBUG = LOGLEVEL_DEBUG, VDO_LOG_MAX = VDO_LOG_DEBUG, VDO_LOG_DEFAULT = VDO_LOG_INFO, }; extern int vdo_log_level; #define DM_MSG_PREFIX "vdo" #define VDO_LOGGING_MODULE_NAME DM_NAME ": " DM_MSG_PREFIX /* Apply a rate limiter to a log method call. */ #define vdo_log_ratelimit(log_fn, ...) \ do { \ static DEFINE_RATELIMIT_STATE(_rs, \ DEFAULT_RATELIMIT_INTERVAL, \ DEFAULT_RATELIMIT_BURST); \ if (__ratelimit(&_rs)) { \ log_fn(__VA_ARGS__); \ } \ } while (0) int vdo_get_log_level(void); void vdo_log_embedded_message(int priority, const char *module, const char *prefix, const char *fmt1, va_list args1, const char *fmt2, ...) __printf(4, 0) __printf(6, 7); void vdo_log_backtrace(int priority); /* All log functions will preserve the caller's value of errno. */ #define vdo_log_strerror(priority, errnum, ...) \ __vdo_log_strerror(priority, errnum, VDO_LOGGING_MODULE_NAME, __VA_ARGS__) int __vdo_log_strerror(int priority, int errnum, const char *module, const char *format, ...) __printf(4, 5); int vdo_vlog_strerror(int priority, int errnum, const char *module, const char *format, va_list args) __printf(4, 0); /* Log an error prefixed with the string associated with the errnum. */ #define vdo_log_error_strerror(errnum, ...) \ vdo_log_strerror(VDO_LOG_ERR, errnum, __VA_ARGS__) #define vdo_log_debug_strerror(errnum, ...) \ vdo_log_strerror(VDO_LOG_DEBUG, errnum, __VA_ARGS__) #define vdo_log_info_strerror(errnum, ...) \ vdo_log_strerror(VDO_LOG_INFO, errnum, __VA_ARGS__) #define vdo_log_warning_strerror(errnum, ...) \ vdo_log_strerror(VDO_LOG_WARNING, errnum, __VA_ARGS__) #define vdo_log_fatal_strerror(errnum, ...) \ vdo_log_strerror(VDO_LOG_CRIT, errnum, __VA_ARGS__) #define vdo_log_message(priority, ...) \ __vdo_log_message(priority, VDO_LOGGING_MODULE_NAME, __VA_ARGS__) void __vdo_log_message(int priority, const char *module, const char *format, ...) __printf(3, 4); #define vdo_log_debug(...) vdo_log_message(VDO_LOG_DEBUG, __VA_ARGS__) #define vdo_log_info(...) vdo_log_message(VDO_LOG_INFO, __VA_ARGS__) #define vdo_log_warning(...) vdo_log_message(VDO_LOG_WARNING, __VA_ARGS__) #define vdo_log_error(...) vdo_log_message(VDO_LOG_ERR, __VA_ARGS__) #define vdo_log_fatal(...) vdo_log_message(VDO_LOG_CRIT, __VA_ARGS__) void vdo_pause_for_logger(void); #endif /* VDO_LOGGER_H */
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