+++ /dev/null
-/* 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 *);
-
-void bch2_topology_error(struct bch_fs *);
-
-#define bch2_fs_inconsistent(c, ...) \
-({ \
- bch_err(c, __VA_ARGS__); \
- bch2_inconsistent_error(c); \
-})
-
-#define bch2_fs_inconsistent_on(cond, c, ...) \
-({ \
- bool _ret = unlikely(!!(cond)); \
- \
- if (_ret) \
- bch2_fs_inconsistent(c, __VA_ARGS__); \
- _ret; \
-})
-
-/*
- * Later we might want to mark only the particular device inconsistent, not the
- * entire filesystem:
- */
-
-#define bch2_dev_inconsistent(ca, ...) \
-do { \
- bch_err(ca, __VA_ARGS__); \
- bch2_inconsistent_error((ca)->fs); \
-} while (0)
-
-#define bch2_dev_inconsistent_on(cond, ca, ...) \
-({ \
- bool _ret = unlikely(!!(cond)); \
- \
- if (_ret) \
- bch2_dev_inconsistent(ca, __VA_ARGS__); \
- _ret; \
-})
-
-/*
- * 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, ...) \
-({ \
- bch_err(trans->c, __VA_ARGS__); \
- bch2_dump_trans_updates(trans); \
- bch2_inconsistent_error(trans->c); \
-})
-
-#define bch2_trans_inconsistent_on(cond, trans, ...) \
-({ \
- bool _ret = unlikely(!!(cond)); \
- \
- if (_ret) \
- bch2_trans_inconsistent(trans, __VA_ARGS__); \
- _ret; \
-})
-
-/*
- * Fsck errors: inconsistency errors we detect at mount time, and should ideally
- * be able to repair:
- */
-
-struct fsck_err_state {
- struct list_head list;
- const char *fmt;
- u64 nr;
- bool ratelimited;
- int ret;
- int fix;
- char *last_msg;
-};
-
-enum bch_fsck_flags {
- FSCK_CAN_FIX = 1 << 0,
- FSCK_CAN_IGNORE = 1 << 1,
- FSCK_NEED_FSCK = 1 << 2,
- FSCK_NO_RATELIMIT = 1 << 3,
-};
-
-#define fsck_err_count(_c, _err) bch2_sb_err_count(_c, BCH_FSCK_ERR_##_err)
-
-__printf(4, 5) __cold
-int bch2_fsck_err(struct bch_fs *,
- enum bch_fsck_flags,
- enum bch_sb_error_id,
- const char *, ...);
-void bch2_flush_fsck_errs(struct bch_fs *);
-
-#define __fsck_err(c, _flags, _err_type, ...) \
-({ \
- int _ret = bch2_fsck_err(c, _flags, BCH_FSCK_ERR_##_err_type, \
- __VA_ARGS__); \
- \
- if (_ret != -BCH_ERR_fsck_fix && \
- _ret != -BCH_ERR_fsck_ignore) { \
- ret = _ret; \
- goto fsck_err; \
- } \
- \
- _ret == -BCH_ERR_fsck_fix; \
-})
-
-/* 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, ...) \
- (unlikely(cond) ? __fsck_err(c, _flags, _err_type, __VA_ARGS__) : false)
-
-#define need_fsck_err_on(cond, c, _err_type, ...) \
- __fsck_err_on(cond, c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK, _err_type, __VA_ARGS__)
-
-#define need_fsck_err(c, _err_type, ...) \
- __fsck_err(c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK, _err_type, __VA_ARGS__)
-
-#define mustfix_fsck_err(c, _err_type, ...) \
- __fsck_err(c, FSCK_CAN_FIX, _err_type, __VA_ARGS__)
-
-#define mustfix_fsck_err_on(cond, c, _err_type, ...) \
- __fsck_err_on(cond, c, FSCK_CAN_FIX, _err_type, __VA_ARGS__)
-
-#define fsck_err(c, _err_type, ...) \
- __fsck_err(c, FSCK_CAN_FIX|FSCK_CAN_IGNORE, _err_type, __VA_ARGS__)
-
-#define fsck_err_on(cond, c, _err_type, ...) \
- __fsck_err_on(cond, c, FSCK_CAN_FIX|FSCK_CAN_IGNORE, _err_type, __VA_ARGS__)
-
-__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, ...)
-{
- va_list args;
-
- va_start(args, fmt);
- prt_vprintf(err_msg, fmt, args);
- va_end(args);
-}
-
-#define bkey_fsck_err(c, _err_msg, _err_type, ...) \
-do { \
- prt_printf(_err_msg, __VA_ARGS__); \
- bch2_sb_error_count(c, BCH_FSCK_ERR_##_err_type); \
- ret = -BCH_ERR_invalid_bkey; \
- goto fsck_err; \
-} while (0)
-
-#define bkey_fsck_err_on(cond, ...) \
-do { \
- if (unlikely(cond)) \
- bkey_fsck_err(__VA_ARGS__); \
-} while (0)
-
-/*
- * 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, ...) \
-do { \
- bch_err(c, __VA_ARGS__); \
- bch2_fatal_error(c); \
-} while (0)
-
-#define bch2_fs_fatal_err_on(cond, c, ...) \
-({ \
- bool _ret = unlikely(!!(cond)); \
- \
- if (_ret) \
- bch2_fs_fatal_error(c, __VA_ARGS__); \
- _ret; \
-})
-
-/*
- * 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, ...) \
-({ \
- bool _ret = (cond); \
- \
- if (_ret) { \
- bch_err_dev_ratelimited(ca, __VA_ARGS__); \
- bch2_io_error(ca, _type); \
- } \
- _ret; \
-})
-
-#define bch2_dev_inum_io_err_on(cond, ca, _type, ...) \
-({ \
- bool _ret = (cond); \
- \
- if (_ret) { \
- bch_err_inum_offset_ratelimited(ca, __VA_ARGS__); \
- bch2_io_error(ca, _type); \
- } \
- _ret; \
-})
-
-#endif /* _BCACHEFS_ERROR_H */
projects / bcachefs-tools-debian / blobdiff