223 lines
7.5 KiB
C
223 lines
7.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef BTRFS_MESSAGES_H
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#define BTRFS_MESSAGES_H
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#include <linux/types.h>
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#include <linux/printk.h>
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#include <linux/bug.h>
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struct btrfs_fs_info;
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/*
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* We want to be able to override this in btrfs-progs.
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*/
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#ifdef __KERNEL__
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static inline __printf(2, 3) __cold
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void btrfs_no_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
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{
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}
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#endif
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#ifdef CONFIG_PRINTK
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#define btrfs_printk(fs_info, fmt, args...) \
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_btrfs_printk(fs_info, fmt, ##args)
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__printf(2, 3)
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__cold
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void _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
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#else
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#define btrfs_printk(fs_info, fmt, args...) \
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btrfs_no_printk(fs_info, fmt, ##args)
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#endif
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#define btrfs_emerg(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_EMERG fmt, ##args)
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#define btrfs_alert(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_ALERT fmt, ##args)
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#define btrfs_crit(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_CRIT fmt, ##args)
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#define btrfs_err(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_ERR fmt, ##args)
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#define btrfs_warn(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_WARNING fmt, ##args)
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#define btrfs_notice(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_NOTICE fmt, ##args)
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#define btrfs_info(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_INFO fmt, ##args)
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/*
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* Wrappers that use printk_in_rcu
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*/
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#define btrfs_emerg_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_EMERG fmt, ##args)
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#define btrfs_alert_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_ALERT fmt, ##args)
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#define btrfs_crit_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_CRIT fmt, ##args)
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#define btrfs_err_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_ERR fmt, ##args)
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#define btrfs_warn_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_WARNING fmt, ##args)
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#define btrfs_notice_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_NOTICE fmt, ##args)
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#define btrfs_info_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_INFO fmt, ##args)
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/*
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* Wrappers that use a ratelimited printk_in_rcu
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*/
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#define btrfs_emerg_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_EMERG fmt, ##args)
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#define btrfs_alert_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_ALERT fmt, ##args)
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#define btrfs_crit_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_CRIT fmt, ##args)
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#define btrfs_err_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_ERR fmt, ##args)
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#define btrfs_warn_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_WARNING fmt, ##args)
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#define btrfs_notice_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_NOTICE fmt, ##args)
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#define btrfs_info_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_INFO fmt, ##args)
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/*
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* Wrappers that use a ratelimited printk
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*/
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#define btrfs_emerg_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_EMERG fmt, ##args)
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#define btrfs_alert_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_ALERT fmt, ##args)
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#define btrfs_crit_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_CRIT fmt, ##args)
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#define btrfs_err_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_ERR fmt, ##args)
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#define btrfs_warn_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_WARNING fmt, ##args)
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#define btrfs_notice_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_NOTICE fmt, ##args)
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#define btrfs_info_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_INFO fmt, ##args)
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#if defined(CONFIG_DYNAMIC_DEBUG)
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#define btrfs_debug(fs_info, fmt, args...) \
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_dynamic_func_call_no_desc(fmt, btrfs_printk, \
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fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
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_dynamic_func_call_no_desc(fmt, btrfs_printk_in_rcu, \
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fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
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_dynamic_func_call_no_desc(fmt, btrfs_printk_rl_in_rcu, \
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fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl(fs_info, fmt, args...) \
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_dynamic_func_call_no_desc(fmt, btrfs_printk_ratelimited, \
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fs_info, KERN_DEBUG fmt, ##args)
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#elif defined(DEBUG)
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#define btrfs_debug(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_DEBUG fmt, ##args)
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#else
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#define btrfs_debug(fs_info, fmt, args...) \
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btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
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btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl(fs_info, fmt, args...) \
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btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
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#endif
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#define btrfs_printk_in_rcu(fs_info, fmt, args...) \
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do { \
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rcu_read_lock(); \
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btrfs_printk(fs_info, fmt, ##args); \
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rcu_read_unlock(); \
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} while (0)
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#define btrfs_no_printk_in_rcu(fs_info, fmt, args...) \
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do { \
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rcu_read_lock(); \
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btrfs_no_printk(fs_info, fmt, ##args); \
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rcu_read_unlock(); \
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} while (0)
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#define btrfs_printk_ratelimited(fs_info, fmt, args...) \
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do { \
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static DEFINE_RATELIMIT_STATE(_rs, \
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DEFAULT_RATELIMIT_INTERVAL, \
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DEFAULT_RATELIMIT_BURST); \
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if (__ratelimit(&_rs)) \
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btrfs_printk(fs_info, fmt, ##args); \
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} while (0)
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#define btrfs_printk_rl_in_rcu(fs_info, fmt, args...) \
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do { \
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rcu_read_lock(); \
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btrfs_printk_ratelimited(fs_info, fmt, ##args); \
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rcu_read_unlock(); \
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} while (0)
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#ifdef CONFIG_BTRFS_ASSERT
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#define btrfs_assertfail(expr, file, line) ({ \
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pr_err("assertion failed: %s, in %s:%d\n", (expr), (file), (line)); \
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BUG(); \
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})
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#define ASSERT(expr) \
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(likely(expr) ? (void)0 : btrfs_assertfail(#expr, __FILE__, __LINE__))
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#else
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#define ASSERT(expr) (void)(expr)
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#endif
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__printf(5, 6)
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__cold
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void __btrfs_handle_fs_error(struct btrfs_fs_info *fs_info, const char *function,
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unsigned int line, int error, const char *fmt, ...);
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const char * __attribute_const__ btrfs_decode_error(int error);
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#define btrfs_handle_fs_error(fs_info, error, fmt, args...) \
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__btrfs_handle_fs_error((fs_info), __func__, __LINE__, \
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(error), fmt, ##args)
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__printf(5, 6)
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__cold
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void __btrfs_panic(const struct btrfs_fs_info *fs_info, const char *function,
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unsigned int line, int error, const char *fmt, ...);
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/*
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* If BTRFS_MOUNT_PANIC_ON_FATAL_ERROR is in mount_opt, __btrfs_panic
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* will panic(). Otherwise we BUG() here.
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*/
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#define btrfs_panic(fs_info, error, fmt, args...) \
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do { \
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__btrfs_panic(fs_info, __func__, __LINE__, error, fmt, ##args); \
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BUG(); \
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} while (0)
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#if BITS_PER_LONG == 32
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#define BTRFS_32BIT_MAX_FILE_SIZE (((u64)ULONG_MAX + 1) << PAGE_SHIFT)
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/*
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* The warning threshold is 5/8th of the MAX_LFS_FILESIZE that limits the logical
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* addresses of extents.
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*
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* For 4K page size it's about 10T, for 64K it's 160T.
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*/
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#define BTRFS_32BIT_EARLY_WARN_THRESHOLD (BTRFS_32BIT_MAX_FILE_SIZE * 5 / 8)
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void btrfs_warn_32bit_limit(struct btrfs_fs_info *fs_info);
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void btrfs_err_32bit_limit(struct btrfs_fs_info *fs_info);
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#endif
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#endif
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