Commit | Line | Data |
---|---|---|
9b569ea0 JB |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | ||
3 | #ifndef BTRFS_MESSAGES_H | |
4 | #define BTRFS_MESSAGES_H | |
5 | ||
6 | #include <linux/types.h> | |
b831306b DS |
7 | #include <linux/printk.h> |
8 | #include <linux/bug.h> | |
9b569ea0 JB |
9 | |
10 | struct btrfs_fs_info; | |
9b569ea0 | 11 | |
a95b7f93 JB |
12 | /* |
13 | * We want to be able to override this in btrfs-progs. | |
14 | */ | |
15 | #ifdef __KERNEL__ | |
16 | ||
9b569ea0 JB |
17 | static inline __printf(2, 3) __cold |
18 | void btrfs_no_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...) | |
19 | { | |
20 | } | |
21 | ||
a95b7f93 JB |
22 | #endif |
23 | ||
bbde07a4 | 24 | #ifdef CONFIG_PRINTK |
9b569ea0 JB |
25 | |
26 | #define btrfs_printk(fs_info, fmt, args...) \ | |
27 | _btrfs_printk(fs_info, fmt, ##args) | |
28 | ||
29 | __printf(2, 3) | |
30 | __cold | |
31 | void _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...); | |
32 | ||
33 | #else | |
34 | ||
35 | #define btrfs_printk(fs_info, fmt, args...) \ | |
36 | btrfs_no_printk(fs_info, fmt, ##args) | |
37 | #endif | |
38 | ||
39 | #define btrfs_emerg(fs_info, fmt, args...) \ | |
40 | btrfs_printk(fs_info, KERN_EMERG fmt, ##args) | |
41 | #define btrfs_alert(fs_info, fmt, args...) \ | |
42 | btrfs_printk(fs_info, KERN_ALERT fmt, ##args) | |
43 | #define btrfs_crit(fs_info, fmt, args...) \ | |
44 | btrfs_printk(fs_info, KERN_CRIT fmt, ##args) | |
45 | #define btrfs_err(fs_info, fmt, args...) \ | |
46 | btrfs_printk(fs_info, KERN_ERR fmt, ##args) | |
47 | #define btrfs_warn(fs_info, fmt, args...) \ | |
48 | btrfs_printk(fs_info, KERN_WARNING fmt, ##args) | |
49 | #define btrfs_notice(fs_info, fmt, args...) \ | |
50 | btrfs_printk(fs_info, KERN_NOTICE fmt, ##args) | |
51 | #define btrfs_info(fs_info, fmt, args...) \ | |
52 | btrfs_printk(fs_info, KERN_INFO fmt, ##args) | |
53 | ||
54 | /* | |
55 | * Wrappers that use printk_in_rcu | |
56 | */ | |
57 | #define btrfs_emerg_in_rcu(fs_info, fmt, args...) \ | |
58 | btrfs_printk_in_rcu(fs_info, KERN_EMERG fmt, ##args) | |
59 | #define btrfs_alert_in_rcu(fs_info, fmt, args...) \ | |
60 | btrfs_printk_in_rcu(fs_info, KERN_ALERT fmt, ##args) | |
61 | #define btrfs_crit_in_rcu(fs_info, fmt, args...) \ | |
62 | btrfs_printk_in_rcu(fs_info, KERN_CRIT fmt, ##args) | |
63 | #define btrfs_err_in_rcu(fs_info, fmt, args...) \ | |
64 | btrfs_printk_in_rcu(fs_info, KERN_ERR fmt, ##args) | |
65 | #define btrfs_warn_in_rcu(fs_info, fmt, args...) \ | |
66 | btrfs_printk_in_rcu(fs_info, KERN_WARNING fmt, ##args) | |
67 | #define btrfs_notice_in_rcu(fs_info, fmt, args...) \ | |
68 | btrfs_printk_in_rcu(fs_info, KERN_NOTICE fmt, ##args) | |
69 | #define btrfs_info_in_rcu(fs_info, fmt, args...) \ | |
70 | btrfs_printk_in_rcu(fs_info, KERN_INFO fmt, ##args) | |
71 | ||
72 | /* | |
73 | * Wrappers that use a ratelimited printk_in_rcu | |
74 | */ | |
75 | #define btrfs_emerg_rl_in_rcu(fs_info, fmt, args...) \ | |
76 | btrfs_printk_rl_in_rcu(fs_info, KERN_EMERG fmt, ##args) | |
77 | #define btrfs_alert_rl_in_rcu(fs_info, fmt, args...) \ | |
78 | btrfs_printk_rl_in_rcu(fs_info, KERN_ALERT fmt, ##args) | |
79 | #define btrfs_crit_rl_in_rcu(fs_info, fmt, args...) \ | |
80 | btrfs_printk_rl_in_rcu(fs_info, KERN_CRIT fmt, ##args) | |
81 | #define btrfs_err_rl_in_rcu(fs_info, fmt, args...) \ | |
82 | btrfs_printk_rl_in_rcu(fs_info, KERN_ERR fmt, ##args) | |
83 | #define btrfs_warn_rl_in_rcu(fs_info, fmt, args...) \ | |
84 | btrfs_printk_rl_in_rcu(fs_info, KERN_WARNING fmt, ##args) | |
85 | #define btrfs_notice_rl_in_rcu(fs_info, fmt, args...) \ | |
86 | btrfs_printk_rl_in_rcu(fs_info, KERN_NOTICE fmt, ##args) | |
87 | #define btrfs_info_rl_in_rcu(fs_info, fmt, args...) \ | |
88 | btrfs_printk_rl_in_rcu(fs_info, KERN_INFO fmt, ##args) | |
89 | ||
90 | /* | |
91 | * Wrappers that use a ratelimited printk | |
92 | */ | |
93 | #define btrfs_emerg_rl(fs_info, fmt, args...) \ | |
94 | btrfs_printk_ratelimited(fs_info, KERN_EMERG fmt, ##args) | |
95 | #define btrfs_alert_rl(fs_info, fmt, args...) \ | |
96 | btrfs_printk_ratelimited(fs_info, KERN_ALERT fmt, ##args) | |
97 | #define btrfs_crit_rl(fs_info, fmt, args...) \ | |
98 | btrfs_printk_ratelimited(fs_info, KERN_CRIT fmt, ##args) | |
99 | #define btrfs_err_rl(fs_info, fmt, args...) \ | |
100 | btrfs_printk_ratelimited(fs_info, KERN_ERR fmt, ##args) | |
101 | #define btrfs_warn_rl(fs_info, fmt, args...) \ | |
102 | btrfs_printk_ratelimited(fs_info, KERN_WARNING fmt, ##args) | |
103 | #define btrfs_notice_rl(fs_info, fmt, args...) \ | |
104 | btrfs_printk_ratelimited(fs_info, KERN_NOTICE fmt, ##args) | |
105 | #define btrfs_info_rl(fs_info, fmt, args...) \ | |
106 | btrfs_printk_ratelimited(fs_info, KERN_INFO fmt, ##args) | |
107 | ||
108 | #if defined(CONFIG_DYNAMIC_DEBUG) | |
109 | #define btrfs_debug(fs_info, fmt, args...) \ | |
110 | _dynamic_func_call_no_desc(fmt, btrfs_printk, \ | |
111 | fs_info, KERN_DEBUG fmt, ##args) | |
112 | #define btrfs_debug_in_rcu(fs_info, fmt, args...) \ | |
113 | _dynamic_func_call_no_desc(fmt, btrfs_printk_in_rcu, \ | |
114 | fs_info, KERN_DEBUG fmt, ##args) | |
115 | #define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \ | |
116 | _dynamic_func_call_no_desc(fmt, btrfs_printk_rl_in_rcu, \ | |
117 | fs_info, KERN_DEBUG fmt, ##args) | |
118 | #define btrfs_debug_rl(fs_info, fmt, args...) \ | |
119 | _dynamic_func_call_no_desc(fmt, btrfs_printk_ratelimited, \ | |
120 | fs_info, KERN_DEBUG fmt, ##args) | |
121 | #elif defined(DEBUG) | |
122 | #define btrfs_debug(fs_info, fmt, args...) \ | |
123 | btrfs_printk(fs_info, KERN_DEBUG fmt, ##args) | |
124 | #define btrfs_debug_in_rcu(fs_info, fmt, args...) \ | |
125 | btrfs_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args) | |
126 | #define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \ | |
127 | btrfs_printk_rl_in_rcu(fs_info, KERN_DEBUG fmt, ##args) | |
128 | #define btrfs_debug_rl(fs_info, fmt, args...) \ | |
129 | btrfs_printk_ratelimited(fs_info, KERN_DEBUG fmt, ##args) | |
130 | #else | |
131 | #define btrfs_debug(fs_info, fmt, args...) \ | |
132 | btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args) | |
133 | #define btrfs_debug_in_rcu(fs_info, fmt, args...) \ | |
134 | btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args) | |
135 | #define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \ | |
136 | btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args) | |
137 | #define btrfs_debug_rl(fs_info, fmt, args...) \ | |
138 | btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args) | |
139 | #endif | |
140 | ||
141 | #define btrfs_printk_in_rcu(fs_info, fmt, args...) \ | |
142 | do { \ | |
143 | rcu_read_lock(); \ | |
144 | btrfs_printk(fs_info, fmt, ##args); \ | |
145 | rcu_read_unlock(); \ | |
146 | } while (0) | |
147 | ||
148 | #define btrfs_no_printk_in_rcu(fs_info, fmt, args...) \ | |
149 | do { \ | |
150 | rcu_read_lock(); \ | |
151 | btrfs_no_printk(fs_info, fmt, ##args); \ | |
152 | rcu_read_unlock(); \ | |
153 | } while (0) | |
154 | ||
155 | #define btrfs_printk_ratelimited(fs_info, fmt, args...) \ | |
156 | do { \ | |
157 | static DEFINE_RATELIMIT_STATE(_rs, \ | |
158 | DEFAULT_RATELIMIT_INTERVAL, \ | |
159 | DEFAULT_RATELIMIT_BURST); \ | |
160 | if (__ratelimit(&_rs)) \ | |
161 | btrfs_printk(fs_info, fmt, ##args); \ | |
162 | } while (0) | |
163 | ||
164 | #define btrfs_printk_rl_in_rcu(fs_info, fmt, args...) \ | |
165 | do { \ | |
166 | rcu_read_lock(); \ | |
167 | btrfs_printk_ratelimited(fs_info, fmt, ##args); \ | |
168 | rcu_read_unlock(); \ | |
169 | } while (0) | |
170 | ||
171 | #ifdef CONFIG_BTRFS_ASSERT | |
b831306b DS |
172 | |
173 | #define btrfs_assertfail(expr, file, line) ({ \ | |
174 | pr_err("assertion failed: %s, in %s:%d\n", (expr), (file), (line)); \ | |
175 | BUG(); \ | |
176 | }) | |
9b569ea0 JB |
177 | |
178 | #define ASSERT(expr) \ | |
179 | (likely(expr) ? (void)0 : btrfs_assertfail(#expr, __FILE__, __LINE__)) | |
180 | #else | |
181 | #define ASSERT(expr) (void)(expr) | |
182 | #endif | |
183 | ||
9b569ea0 JB |
184 | __printf(5, 6) |
185 | __cold | |
186 | void __btrfs_handle_fs_error(struct btrfs_fs_info *fs_info, const char *function, | |
187 | unsigned int line, int errno, const char *fmt, ...); | |
188 | ||
189 | const char * __attribute_const__ btrfs_decode_error(int errno); | |
190 | ||
9b569ea0 JB |
191 | #define btrfs_handle_fs_error(fs_info, errno, fmt, args...) \ |
192 | __btrfs_handle_fs_error((fs_info), __func__, __LINE__, \ | |
193 | (errno), fmt, ##args) | |
194 | ||
9b569ea0 JB |
195 | __printf(5, 6) |
196 | __cold | |
197 | void __btrfs_panic(struct btrfs_fs_info *fs_info, const char *function, | |
198 | unsigned int line, int errno, const char *fmt, ...); | |
199 | /* | |
200 | * If BTRFS_MOUNT_PANIC_ON_FATAL_ERROR is in mount_opt, __btrfs_panic | |
201 | * will panic(). Otherwise we BUG() here. | |
202 | */ | |
203 | #define btrfs_panic(fs_info, errno, fmt, args...) \ | |
204 | do { \ | |
205 | __btrfs_panic(fs_info, __func__, __LINE__, errno, fmt, ##args); \ | |
206 | BUG(); \ | |
207 | } while (0) | |
208 | ||
b538a271 JB |
209 | #if BITS_PER_LONG == 32 |
210 | #define BTRFS_32BIT_MAX_FILE_SIZE (((u64)ULONG_MAX + 1) << PAGE_SHIFT) | |
211 | /* | |
212 | * The warning threshold is 5/8th of the MAX_LFS_FILESIZE that limits the logical | |
213 | * addresses of extents. | |
214 | * | |
215 | * For 4K page size it's about 10T, for 64K it's 160T. | |
216 | */ | |
217 | #define BTRFS_32BIT_EARLY_WARN_THRESHOLD (BTRFS_32BIT_MAX_FILE_SIZE * 5 / 8) | |
218 | void btrfs_warn_32bit_limit(struct btrfs_fs_info *fs_info); | |
219 | void btrfs_err_32bit_limit(struct btrfs_fs_info *fs_info); | |
220 | #endif | |
221 | ||
9b569ea0 | 222 | #endif |