/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _BCACHEFS_ERROR_H #define _BCACHEFS_ERROR_H #include <linux/list.h> #include <linux/printk.h> #include "sb-errors.h" struct bch_dev; struct bch_fs; struct work_struct; /* * XXX: separate out errors that indicate on disk data is inconsistent, and flag * superblock as such */ /* Error messages: */ /* * Inconsistency errors: The on disk data is inconsistent. If these occur during * initial recovery, they don't indicate a bug in the running code - we walk all * the metadata before modifying anything. If they occur at runtime, they * indicate either a bug in the running code or (less likely) data is being * silently corrupted under us. * * XXX: audit all inconsistent errors and make sure they're all recoverable, in * BCH_ON_ERROR_CONTINUE mode */ bool bch2_inconsistent_error(struct bch_fs *); int bch2_topology_error(struct bch_fs *); #define bch2_fs_topology_error(c, ...) … #define bch2_fs_inconsistent(c, ...) … #define bch2_fs_inconsistent_on(cond, c, ...) … /* * Later we might want to mark only the particular device inconsistent, not the * entire filesystem: */ #define bch2_dev_inconsistent(ca, ...) … #define bch2_dev_inconsistent_on(cond, ca, ...) … /* * When a transaction update discovers or is causing a fs inconsistency, it's * helpful to also dump the pending updates: */ #define bch2_trans_inconsistent(trans, ...) … #define bch2_trans_inconsistent_on(cond, trans, ...) … /* * Fsck errors: inconsistency errors we detect at mount time, and should ideally * be able to repair: */ struct fsck_err_state { … }; #define fsck_err_count(_c, _err) … __printf(5, 6) __cold int __bch2_fsck_err(struct bch_fs *, struct btree_trans *, enum bch_fsck_flags, enum bch_sb_error_id, const char *, ...); #define bch2_fsck_err(c, _flags, _err_type, ...) … void bch2_flush_fsck_errs(struct bch_fs *); #define __fsck_err(c, _flags, _err_type, ...) … /* These macros return true if error should be fixed: */ /* XXX: mark in superblock that filesystem contains errors, if we ignore: */ #define __fsck_err_on(cond, c, _flags, _err_type, ...) … #define need_fsck_err_on(cond, c, _err_type, ...) … #define need_fsck_err(c, _err_type, ...) … #define mustfix_fsck_err(c, _err_type, ...) … #define mustfix_fsck_err_on(cond, c, _err_type, ...) … #define fsck_err(c, _err_type, ...) … #define fsck_err_on(cond, c, _err_type, ...) … __printf(4, 0) static inline void bch2_bkey_fsck_err(struct bch_fs *c, struct printbuf *err_msg, enum bch_sb_error_id err_type, const char *fmt, ...) { … } #define bkey_fsck_err(c, _err_msg, _err_type, ...) … #define bkey_fsck_err_on(cond, ...) … /* * Fatal errors: these don't indicate a bug, but we can't continue running in RW * mode - pretty much just due to metadata IO errors: */ void bch2_fatal_error(struct bch_fs *); #define bch2_fs_fatal_error(c, _msg, ...) … #define bch2_fs_fatal_err_on(cond, c, ...) … /* * IO errors: either recoverable metadata IO (because we have replicas), or data * IO - we need to log it and print out a message, but we don't (necessarily) * want to shut down the fs: */ void bch2_io_error_work(struct work_struct *); /* Does the error handling without logging a message */ void bch2_io_error(struct bch_dev *, enum bch_member_error_type); #define bch2_dev_io_err_on(cond, ca, _type, ...) … #define bch2_dev_inum_io_err_on(cond, ca, _type, ...) … #endif /* _BCACHEFS_ERROR_H */
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