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6d77ce4a27
Build up and emit the error message for an inconsistency error all at once, instead of spread over multiple printk calls, so they're not jumbled in the dmesg log. Also, add better indenting. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
251 lines
7.0 KiB
C
251 lines
7.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_ERROR_H
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#define _BCACHEFS_ERROR_H
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#include <linux/list.h>
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#include <linux/printk.h>
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#include "bkey_types.h"
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#include "sb-errors.h"
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struct bch_dev;
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struct bch_fs;
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struct work_struct;
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/*
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* XXX: separate out errors that indicate on disk data is inconsistent, and flag
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* superblock as such
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*/
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/* Error messages: */
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void bch2_log_msg_start(struct bch_fs *, struct printbuf *);
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/*
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* Inconsistency errors: The on disk data is inconsistent. If these occur during
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* initial recovery, they don't indicate a bug in the running code - we walk all
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* the metadata before modifying anything. If they occur at runtime, they
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* indicate either a bug in the running code or (less likely) data is being
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* silently corrupted under us.
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*
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* XXX: audit all inconsistent errors and make sure they're all recoverable, in
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* BCH_ON_ERROR_CONTINUE mode
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*/
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bool __bch2_inconsistent_error(struct bch_fs *, struct printbuf *);
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bool bch2_inconsistent_error(struct bch_fs *);
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__printf(2, 3)
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bool bch2_fs_inconsistent(struct bch_fs *, const char *, ...);
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#define bch2_fs_inconsistent_on(cond, ...) \
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({ \
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bool _ret = unlikely(!!(cond)); \
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if (_ret) \
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bch2_fs_inconsistent(__VA_ARGS__); \
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_ret; \
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})
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__printf(2, 3)
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bool bch2_trans_inconsistent(struct btree_trans *, const char *, ...);
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#define bch2_trans_inconsistent_on(cond, ...) \
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({ \
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bool _ret = unlikely(!!(cond)); \
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if (_ret) \
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bch2_trans_inconsistent(__VA_ARGS__); \
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_ret; \
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})
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int __bch2_topology_error(struct bch_fs *, struct printbuf *);
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__printf(2, 3)
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int bch2_fs_topology_error(struct bch_fs *, const char *, ...);
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/*
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* Fsck errors: inconsistency errors we detect at mount time, and should ideally
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* be able to repair:
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*/
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struct fsck_err_state {
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struct list_head list;
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enum bch_sb_error_id id;
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u64 nr;
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bool ratelimited;
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int ret;
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int fix;
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char *last_msg;
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};
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#define fsck_err_count(_c, _err) bch2_sb_err_count(_c, BCH_FSCK_ERR_##_err)
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void __bch2_count_fsck_err(struct bch_fs *,
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enum bch_sb_error_id, const char *,
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bool *, bool *, bool *);
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#define bch2_count_fsck_err(_c, _err, ...) \
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__bch2_count_fsck_err(_c, BCH_FSCK_ERR_##_err, __VA_ARGS__)
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__printf(5, 6) __cold
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int __bch2_fsck_err(struct bch_fs *, struct btree_trans *,
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enum bch_fsck_flags,
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enum bch_sb_error_id,
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const char *, ...);
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#define bch2_fsck_err(c, _flags, _err_type, ...) \
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__bch2_fsck_err(type_is(c, struct bch_fs *) ? (struct bch_fs *) c : NULL,\
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type_is(c, struct btree_trans *) ? (struct btree_trans *) c : NULL,\
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_flags, BCH_FSCK_ERR_##_err_type, __VA_ARGS__)
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void bch2_flush_fsck_errs(struct bch_fs *);
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#define fsck_err_wrap(_do) \
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({ \
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int _ret = _do; \
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if (_ret != -BCH_ERR_fsck_fix && \
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_ret != -BCH_ERR_fsck_ignore) { \
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ret = _ret; \
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goto fsck_err; \
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} \
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\
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_ret == -BCH_ERR_fsck_fix; \
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})
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#define __fsck_err(...) fsck_err_wrap(bch2_fsck_err(__VA_ARGS__))
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/* These macros return true if error should be fixed: */
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/* XXX: mark in superblock that filesystem contains errors, if we ignore: */
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#define __fsck_err_on(cond, c, _flags, _err_type, ...) \
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({ \
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might_sleep(); \
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\
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if (type_is(c, struct bch_fs *)) \
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WARN_ON(bch2_current_has_btree_trans((struct bch_fs *) c));\
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\
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(unlikely(cond) ? __fsck_err(c, _flags, _err_type, __VA_ARGS__) : false);\
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})
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#define mustfix_fsck_err(c, _err_type, ...) \
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__fsck_err(c, FSCK_CAN_FIX, _err_type, __VA_ARGS__)
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#define mustfix_fsck_err_on(cond, c, _err_type, ...) \
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__fsck_err_on(cond, c, FSCK_CAN_FIX, _err_type, __VA_ARGS__)
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#define fsck_err(c, _err_type, ...) \
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__fsck_err(c, FSCK_CAN_FIX|FSCK_CAN_IGNORE, _err_type, __VA_ARGS__)
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#define fsck_err_on(cond, c, _err_type, ...) \
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__fsck_err_on(cond, c, FSCK_CAN_FIX|FSCK_CAN_IGNORE, _err_type, __VA_ARGS__)
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#define log_fsck_err(c, _err_type, ...) \
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__fsck_err(c, FSCK_CAN_IGNORE, _err_type, __VA_ARGS__)
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#define log_fsck_err_on(cond, ...) \
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({ \
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bool _ret = unlikely(!!(cond)); \
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if (_ret) \
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log_fsck_err(__VA_ARGS__); \
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_ret; \
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})
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enum bch_validate_flags;
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__printf(5, 6)
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int __bch2_bkey_fsck_err(struct bch_fs *,
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struct bkey_s_c,
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struct bkey_validate_context from,
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enum bch_sb_error_id,
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const char *, ...);
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/*
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* for now, bkey fsck errors are always handled by deleting the entire key -
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* this will change at some point
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*/
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#define bkey_fsck_err(c, _err_type, _err_msg, ...) \
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do { \
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int _ret = __bch2_bkey_fsck_err(c, k, from, \
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BCH_FSCK_ERR_##_err_type, \
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_err_msg, ##__VA_ARGS__); \
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if (_ret != -BCH_ERR_fsck_fix && \
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_ret != -BCH_ERR_fsck_ignore) \
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ret = _ret; \
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ret = -BCH_ERR_fsck_delete_bkey; \
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goto fsck_err; \
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} while (0)
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#define bkey_fsck_err_on(cond, ...) \
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do { \
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if (unlikely(cond)) \
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bkey_fsck_err(__VA_ARGS__); \
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} while (0)
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/*
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* Fatal errors: these don't indicate a bug, but we can't continue running in RW
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* mode - pretty much just due to metadata IO errors:
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*/
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void bch2_fatal_error(struct bch_fs *);
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#define bch2_fs_fatal_error(c, _msg, ...) \
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do { \
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bch_err(c, "%s(): fatal error " _msg, __func__, ##__VA_ARGS__); \
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bch2_fatal_error(c); \
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} while (0)
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#define bch2_fs_fatal_err_on(cond, c, ...) \
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({ \
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bool _ret = unlikely(!!(cond)); \
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\
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if (_ret) \
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bch2_fs_fatal_error(c, __VA_ARGS__); \
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_ret; \
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})
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/*
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* IO errors: either recoverable metadata IO (because we have replicas), or data
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* IO - we need to log it and print out a message, but we don't (necessarily)
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* want to shut down the fs:
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*/
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void bch2_io_error_work(struct work_struct *);
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/* Does the error handling without logging a message */
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void bch2_io_error(struct bch_dev *, enum bch_member_error_type);
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#ifndef CONFIG_BCACHEFS_NO_LATENCY_ACCT
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void bch2_latency_acct(struct bch_dev *, u64, int);
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#else
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static inline void bch2_latency_acct(struct bch_dev *ca, u64 submit_time, int rw) {}
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#endif
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static inline void bch2_account_io_success_fail(struct bch_dev *ca,
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enum bch_member_error_type type,
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bool success)
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{
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if (likely(success)) {
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if (type == BCH_MEMBER_ERROR_write &&
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ca->write_errors_start)
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ca->write_errors_start = 0;
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} else {
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bch2_io_error(ca, type);
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}
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}
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static inline void bch2_account_io_completion(struct bch_dev *ca,
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enum bch_member_error_type type,
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u64 submit_time, bool success)
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{
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if (unlikely(!ca))
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return;
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if (type != BCH_MEMBER_ERROR_checksum)
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bch2_latency_acct(ca, submit_time, type);
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bch2_account_io_success_fail(ca, type, success);
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}
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int bch2_inum_offset_err_msg_trans(struct btree_trans *, struct printbuf *, subvol_inum, u64);
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void bch2_inum_offset_err_msg(struct bch_fs *, struct printbuf *, subvol_inum, u64);
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int bch2_inum_snap_offset_err_msg_trans(struct btree_trans *, struct printbuf *, struct bpos);
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void bch2_inum_snap_offset_err_msg(struct bch_fs *, struct printbuf *, struct bpos);
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#endif /* _BCACHEFS_ERROR_H */
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