1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_ERROR_H
3 #define _BCACHEFS_ERROR_H
5 #include <linux/list.h>
6 #include <linux/printk.h>
14 * XXX: separate out errors that indicate on disk data is inconsistent, and flag
21 * Inconsistency errors: The on disk data is inconsistent. If these occur during
22 * initial recovery, they don't indicate a bug in the running code - we walk all
23 * the metadata before modifying anything. If they occur at runtime, they
24 * indicate either a bug in the running code or (less likely) data is being
25 * silently corrupted under us.
27 * XXX: audit all inconsistent errors and make sure they're all recoverable, in
28 * BCH_ON_ERROR_CONTINUE mode
31 bool bch2_inconsistent_error(struct bch_fs *);
33 void bch2_topology_error(struct bch_fs *);
35 #define bch2_fs_inconsistent(c, ...) \
37 bch_err(c, __VA_ARGS__); \
38 bch2_inconsistent_error(c); \
41 #define bch2_fs_inconsistent_on(cond, c, ...) \
43 bool _ret = unlikely(!!(cond)); \
46 bch2_fs_inconsistent(c, __VA_ARGS__); \
51 * Later we might want to mark only the particular device inconsistent, not the
55 #define bch2_dev_inconsistent(ca, ...) \
57 bch_err(ca, __VA_ARGS__); \
58 bch2_inconsistent_error((ca)->fs); \
61 #define bch2_dev_inconsistent_on(cond, ca, ...) \
63 bool _ret = unlikely(!!(cond)); \
66 bch2_dev_inconsistent(ca, __VA_ARGS__); \
71 * When a transaction update discovers or is causing a fs inconsistency, it's
72 * helpful to also dump the pending updates:
74 #define bch2_trans_inconsistent(trans, ...) \
76 bch_err(trans->c, __VA_ARGS__); \
77 bch2_dump_trans_updates(trans); \
78 bch2_inconsistent_error(trans->c); \
81 #define bch2_trans_inconsistent_on(cond, trans, ...) \
83 bool _ret = unlikely(!!(cond)); \
86 bch2_trans_inconsistent(trans, __VA_ARGS__); \
91 * Fsck errors: inconsistency errors we detect at mount time, and should ideally
95 struct fsck_err_state {
96 struct list_head list;
105 enum bch_fsck_flags {
106 FSCK_CAN_FIX = 1 << 0,
107 FSCK_CAN_IGNORE = 1 << 1,
108 FSCK_NEED_FSCK = 1 << 2,
109 FSCK_NO_RATELIMIT = 1 << 3,
112 #define fsck_err_count(_c, _err) bch2_sb_err_count(_c, BCH_FSCK_ERR_##_err)
114 __printf(4, 5) __cold
115 int bch2_fsck_err(struct bch_fs *,
117 enum bch_sb_error_id,
119 void bch2_flush_fsck_errs(struct bch_fs *);
121 #define __fsck_err(c, _flags, _err_type, ...) \
123 int _ret = bch2_fsck_err(c, _flags, BCH_FSCK_ERR_##_err_type, \
126 if (_ret != -BCH_ERR_fsck_fix && \
127 _ret != -BCH_ERR_fsck_ignore) { \
132 _ret == -BCH_ERR_fsck_fix; \
135 /* These macros return true if error should be fixed: */
137 /* XXX: mark in superblock that filesystem contains errors, if we ignore: */
139 #define __fsck_err_on(cond, c, _flags, _err_type, ...) \
140 (unlikely(cond) ? __fsck_err(c, _flags, _err_type, __VA_ARGS__) : false)
142 #define need_fsck_err_on(cond, c, _err_type, ...) \
143 __fsck_err_on(cond, c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK, _err_type, __VA_ARGS__)
145 #define need_fsck_err(c, _err_type, ...) \
146 __fsck_err(c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK, _err_type, __VA_ARGS__)
148 #define mustfix_fsck_err(c, _err_type, ...) \
149 __fsck_err(c, FSCK_CAN_FIX, _err_type, __VA_ARGS__)
151 #define mustfix_fsck_err_on(cond, c, _err_type, ...) \
152 __fsck_err_on(cond, c, FSCK_CAN_FIX, _err_type, __VA_ARGS__)
154 #define fsck_err(c, _err_type, ...) \
155 __fsck_err(c, FSCK_CAN_FIX|FSCK_CAN_IGNORE, _err_type, __VA_ARGS__)
157 #define fsck_err_on(cond, c, _err_type, ...) \
158 __fsck_err_on(cond, c, FSCK_CAN_FIX|FSCK_CAN_IGNORE, _err_type, __VA_ARGS__)
161 static inline void bch2_bkey_fsck_err(struct bch_fs *c,
162 struct printbuf *err_msg,
163 enum bch_sb_error_id err_type,
164 const char *fmt, ...)
169 prt_vprintf(err_msg, fmt, args);
173 #define bkey_fsck_err(c, _err_msg, _err_type, ...) \
175 prt_printf(_err_msg, __VA_ARGS__); \
176 bch2_sb_error_count(c, BCH_FSCK_ERR_##_err_type); \
177 ret = -BCH_ERR_invalid_bkey; \
181 #define bkey_fsck_err_on(cond, ...) \
183 if (unlikely(cond)) \
184 bkey_fsck_err(__VA_ARGS__); \
188 * Fatal errors: these don't indicate a bug, but we can't continue running in RW
189 * mode - pretty much just due to metadata IO errors:
192 void bch2_fatal_error(struct bch_fs *);
194 #define bch2_fs_fatal_error(c, ...) \
196 bch_err(c, __VA_ARGS__); \
197 bch2_fatal_error(c); \
200 #define bch2_fs_fatal_err_on(cond, c, ...) \
202 bool _ret = unlikely(!!(cond)); \
205 bch2_fs_fatal_error(c, __VA_ARGS__); \
210 * IO errors: either recoverable metadata IO (because we have replicas), or data
211 * IO - we need to log it and print out a message, but we don't (necessarily)
212 * want to shut down the fs:
215 void bch2_io_error_work(struct work_struct *);
217 /* Does the error handling without logging a message */
218 void bch2_io_error(struct bch_dev *, enum bch_member_error_type);
220 #define bch2_dev_io_err_on(cond, ca, _type, ...) \
222 bool _ret = (cond); \
225 bch_err_dev_ratelimited(ca, __VA_ARGS__); \
226 bch2_io_error(ca, _type); \
231 #define bch2_dev_inum_io_err_on(cond, ca, _type, ...) \
233 bool _ret = (cond); \
236 bch_err_inum_offset_ratelimited(ca, __VA_ARGS__); \
237 bch2_io_error(ca, _type); \
242 #endif /* _BCACHEFS_ERROR_H */