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linux/fs/bcachefs/errcode.h

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bcachefs: Convert bucket_alloc_ret to negative error codes Start a new header, errcode.h, for bcachefs-private error codes - more error codes will be converted later. This patch just converts bucket_alloc_ret so that they can be mixed with standard error codes and passed as ERR_PTR errors - the ec.c code was doing this already, but incorrectly. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2021-11-28 18:42:05 +00:00
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_ERRCODE_H
#define _BCACHEFS_ERRCODE_H
bcachefs: Improved errcodes Instead of overloading standard error codes (EINTR/EAGAIN), and defining short lists of error codes in multiple places that potentially end up overlapping & conflicting, we're now going to have one master list of error codes. Error codes are defined with an x-macro: thus we also have bch2_err_str() now. Also, error codes have a class field. Now, instead of checking for errors with ==, code should use bch2_err_matches(), which returns true if the error is equal to or a sub-error of the error class. This means we can define unique errors for every source location where an error is generated, which will help improve our error messages. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2022-07-18 02:31:21 +00:00
#define BCH_ERRCODES() \
x(0, open_buckets_empty) \
x(0, freelist_empty) \
x(freelist_empty, no_buckets_found) \
x(0, insufficient_devices) \
bcachefs: EINTR -> BCH_ERR_transaction_restart Now that we have error codes, with subtypes, we can switch to our own error code for transaction restarts - and even better, a distinct error code for each transaction restart reason: clearer code and better debugging. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2022-07-18 03:06:38 +00:00
x(0, transaction_restart) \
x(transaction_restart, transaction_restart_fault_inject) \
x(transaction_restart, transaction_restart_relock) \
x(transaction_restart, transaction_restart_relock_path) \
x(transaction_restart, transaction_restart_relock_path_intent) \
x(transaction_restart, transaction_restart_relock_after_fill) \
x(transaction_restart, transaction_restart_too_many_iters) \
x(transaction_restart, transaction_restart_lock_node_reused) \
x(transaction_restart, transaction_restart_fill_relock) \
x(transaction_restart, transaction_restart_fill_mem_alloc_fail)\
x(transaction_restart, transaction_restart_mem_realloced) \
x(transaction_restart, transaction_restart_in_traverse_all) \
x(transaction_restart, transaction_restart_would_deadlock) \
x(transaction_restart, transaction_restart_would_deadlock_write)\
x(transaction_restart, transaction_restart_upgrade) \
bcachefs: Add distinct error code for key_cache_upgrade This aids in debugging. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2022-08-04 16:46:37 +00:00
x(transaction_restart, transaction_restart_key_cache_upgrade) \
bcachefs: EINTR -> BCH_ERR_transaction_restart Now that we have error codes, with subtypes, we can switch to our own error code for transaction restarts - and even better, a distinct error code for each transaction restart reason: clearer code and better debugging. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2022-07-18 03:06:38 +00:00
x(transaction_restart, transaction_restart_key_cache_fill) \
x(transaction_restart, transaction_restart_key_cache_raced) \
x(transaction_restart, transaction_restart_key_cache_realloced)\
x(transaction_restart, transaction_restart_journal_preres_get) \
x(transaction_restart, transaction_restart_nested) \
bcachefs: BTREE_ITER_NO_NODE -> BCH_ERR codes Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2022-08-10 23:08:30 +00:00
x(0, no_btree_node) \
x(no_btree_node, no_btree_node_relock) \
x(no_btree_node, no_btree_node_upgrade) \
x(no_btree_node, no_btree_node_drop) \
x(no_btree_node, no_btree_node_lock_root) \
x(no_btree_node, no_btree_node_up) \
x(no_btree_node, no_btree_node_down) \
x(no_btree_node, no_btree_node_init) \
x(no_btree_node, no_btree_node_cached) \
bcachefs: EINTR -> BCH_ERR_transaction_restart Now that we have error codes, with subtypes, we can switch to our own error code for transaction restarts - and even better, a distinct error code for each transaction restart reason: clearer code and better debugging. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2022-07-18 03:06:38 +00:00
x(0, lock_fail_node_reused) \
x(0, lock_fail_root_changed) \
bcachefs: Convert fsck errors to errcode.h Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2022-07-19 21:20:18 +00:00
x(0, journal_reclaim_would_deadlock) \
x(0, fsck) \
x(fsck, fsck_fix) \
x(fsck, fsck_ignore) \
x(fsck, fsck_errors_not_fixed) \
x(fsck, fsck_repair_unimplemented) \
x(fsck, fsck_repair_impossible) \
x(0, need_snapshot_cleanup) \
x(0, need_topology_repair)
bcachefs: Improved errcodes Instead of overloading standard error codes (EINTR/EAGAIN), and defining short lists of error codes in multiple places that potentially end up overlapping & conflicting, we're now going to have one master list of error codes. Error codes are defined with an x-macro: thus we also have bch2_err_str() now. Also, error codes have a class field. Now, instead of checking for errors with ==, code should use bch2_err_matches(), which returns true if the error is equal to or a sub-error of the error class. This means we can define unique errors for every source location where an error is generated, which will help improve our error messages. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2022-07-18 02:31:21 +00:00
enum bch_errcode {
BCH_ERR_START = 2048,
#define x(class, err) BCH_ERR_##err,
BCH_ERRCODES()
#undef x
BCH_ERR_MAX
bcachefs: Convert bucket_alloc_ret to negative error codes Start a new header, errcode.h, for bcachefs-private error codes - more error codes will be converted later. This patch just converts bucket_alloc_ret so that they can be mixed with standard error codes and passed as ERR_PTR errors - the ec.c code was doing this already, but incorrectly. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2021-11-28 18:42:05 +00:00
};
bcachefs: Improved errcodes Instead of overloading standard error codes (EINTR/EAGAIN), and defining short lists of error codes in multiple places that potentially end up overlapping & conflicting, we're now going to have one master list of error codes. Error codes are defined with an x-macro: thus we also have bch2_err_str() now. Also, error codes have a class field. Now, instead of checking for errors with ==, code should use bch2_err_matches(), which returns true if the error is equal to or a sub-error of the error class. This means we can define unique errors for every source location where an error is generated, which will help improve our error messages. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2022-07-18 02:31:21 +00:00
const char *bch2_err_str(int);
bool __bch2_err_matches(int, int);
static inline bool _bch2_err_matches(int err, int class)
{
return err && __bch2_err_matches(err, class);
}
#define bch2_err_matches(_err, _class) \
({ \
BUILD_BUG_ON(!__builtin_constant_p(_class)); \
_bch2_err_matches(_err, _class); \
})
bcachefs: Convert bucket_alloc_ret to negative error codes Start a new header, errcode.h, for bcachefs-private error codes - more error codes will be converted later. This patch just converts bucket_alloc_ret so that they can be mixed with standard error codes and passed as ERR_PTR errors - the ec.c code was doing this already, but incorrectly. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2021-11-28 18:42:05 +00:00
#endif /* _BCACHFES_ERRCODE_H */
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