/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_ERROR_H
#define _BCACHEFS_ERROR_H
#include <linux/list.h>
#include <linux/printk.h>
#include "bkey_types.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: */
void __bch2_log_msg_start(const char *, struct printbuf *);
static inline void bch2_log_msg_start(struct bch_fs *c, struct printbuf *out)
{
__bch2_log_msg_start(c->name, out);
}
/*
* 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 *, struct printbuf *);
bool bch2_inconsistent_error(struct bch_fs *);
__printf(2 , 3 )
bool bch2_fs_inconsistent(struct bch_fs *, const char *, ...);
#define bch2_fs_inconsistent_on(cond, ...) \
({ \
bool _ret = unlikely(!!(cond)); \
if (_ret) \
bch2_fs_inconsistent(__VA_ARGS__); \
_ret; \
})
__printf(2 , 3 )
bool bch2_trans_inconsistent(struct btree_trans *, const char *, ...);
#define bch2_trans_inconsistent_on(cond, ...) \
({ \
bool _ret = unlikely(!!(cond)); \
if (_ret) \
bch2_trans_inconsistent(__VA_ARGS__); \
_ret; \
})
int __bch2_topology_error(struct bch_fs *, struct printbuf *);
__printf(2 , 3 )
int bch2_fs_topology_error(struct bch_fs *, const char *, ...);
/*
* Fsck errors : inconsistency errors we detect at mount time , and should ideally
* be able to repair :
*/
struct fsck_err_state {
struct list_head list;
enum bch_sb_error_id id;
u64 nr;
bool ratelimited;
int ret;
int fix;
char *last_msg;
};
#define fsck_err_count(_c, _err) bch2_sb_err_count(_c, BCH_FSCK_ERR_## _err)
bool __bch2_count_fsck_err(struct bch_fs *, enum bch_sb_error_id, struct printbuf *);
#define bch2_count_fsck_err(_c, _err, ...) \
__bch2_count_fsck_err(_c, BCH_FSCK_ERR_## _err, __VA_ARGS__)
int bch2_fsck_err_opt(struct bch_fs *,
enum bch_fsck_flags,
enum bch_sb_error_id);
__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, ...) \
__bch2_fsck_err(type_is(c, struct bch_fs *) ? (struct bch_fs *) c : NULL,\
type_is(c, struct btree_trans *) ? (struct btree_trans *) c : NULL,\
_flags, BCH_FSCK_ERR_## _err_type, __VA_ARGS__)
void bch2_flush_fsck_errs(struct bch_fs *);
void bch2_free_fsck_errs(struct bch_fs *);
#define fsck_err_wrap(_do ) \
({ \
int _ret = _do ; \
if (!bch2_err_matches(_ret, BCH_ERR_fsck_fix) && \
!bch2_err_matches(_ret, BCH_ERR_fsck_ignore)) { \
ret = _ret; \
goto fsck_err; \
} \
\
bch2_err_matches(_ret, BCH_ERR_fsck_fix); \
})
#define __fsck_err(...) fsck_err_wrap(bch2_fsck_err(__VA_ARGS__))
/* 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, ...) \
({ \
might_sleep(); \
\
if (type_is(c, struct bch_fs *)) \
WARN_ON(bch2_current_has_btree_trans((struct bch_fs *) c));\
\
(unlikely(cond) ? __fsck_err(c, _flags, _err_type, __VA_ARGS__) : false );\
})
#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__)
#define log_fsck_err(c, _err_type, ...) \
__fsck_err(c, FSCK_CAN_IGNORE, _err_type, __VA_ARGS__)
#define log_fsck_err_on(cond, ...) \
({ \
bool _ret = unlikely(!!(cond)); \
if (_ret) \
log_fsck_err(__VA_ARGS__); \
_ret; \
})
enum bch_validate_flags;
__printf(5 , 6 )
int __bch2_bkey_fsck_err(struct bch_fs *,
struct bkey_s_c,
struct bkey_validate_context from,
enum bch_sb_error_id,
const char *, ...);
/*
* for now , bkey fsck errors are always handled by deleting the entire key -
* this will change at some point
*/
#define bkey_fsck_err(c, _err_type, _err_msg, ...) \
do { \
int _ret = __bch2_bkey_fsck_err(c, k, from, \
BCH_FSCK_ERR_## _err_type, \
_err_msg, ## __VA_ARGS__); \
if (!bch2_err_matches(_ret, BCH_ERR_fsck_fix) && \
!bch2_err_matches(_ret, BCH_ERR_fsck_ignore)) \
ret = _ret; \
ret = bch_err_throw(c, fsck_delete_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, _msg, ...) \
do { \
bch_err(c, "%s(): fatal error " _msg, __func__, ## __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);
#ifndef CONFIG_BCACHEFS_NO_LATENCY_ACCT
void bch2_latency_acct(struct bch_dev *, u64, int );
#else
static inline void bch2_latency_acct(struct bch_dev *ca, u64 submit_time, int rw) {}
#endif
static inline void bch2_account_io_success_fail(struct bch_dev *ca,
enum bch_member_error_type type,
bool success)
{
if (likely(success)) {
if (type == BCH_MEMBER_ERROR_write &&
ca->write_errors_start)
ca->write_errors_start = 0 ;
} else {
bch2_io_error(ca, type);
}
}
static inline void bch2_account_io_completion(struct bch_dev *ca,
enum bch_member_error_type type,
u64 submit_time, bool success)
{
if (unlikely(!ca))
return ;
if (type != BCH_MEMBER_ERROR_checksum)
bch2_latency_acct(ca, submit_time, type);
bch2_account_io_success_fail(ca, type, success);
}
int bch2_inum_offset_err_msg_trans(struct btree_trans *, struct printbuf *, subvol_inum, u64);
void bch2_inum_offset_err_msg(struct bch_fs *, struct printbuf *, subvol_inum, u64);
int bch2_inum_snap_offset_err_msg_trans(struct btree_trans *, struct printbuf *, struct bpos);
void bch2_inum_snap_offset_err_msg(struct bch_fs *, struct printbuf *, struct bpos);
#endif /* _BCACHEFS_ERROR_H */
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