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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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a8eefbd324
The next patch in the series is (finally!) going to change btree splits (and interior updates in general) to not take intent locks all the way up to the root - instead only locking the nodes they'll need to modify. However, this will be introducing a race since if we're not holding a write lock on a btree node it can be written out by another thread, and then we might not have enough space for a new bset entry. We can handle this by retrying - we just need to introduce a new error path. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
96 lines
3.7 KiB
C
96 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_ERRCODE_H
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#define _BCACHEFS_ERRCODE_H
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#define BCH_ERRCODES() \
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x(ENOSPC, ENOSPC_disk_reservation) \
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x(ENOSPC, ENOSPC_bucket_alloc) \
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x(ENOSPC, ENOSPC_disk_label_add) \
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x(ENOSPC, ENOSPC_stripe_create) \
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x(ENOSPC, ENOSPC_stripe_reuse) \
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x(ENOSPC, ENOSPC_inode_create) \
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x(ENOSPC, ENOSPC_str_hash_create) \
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x(ENOSPC, ENOSPC_snapshot_create) \
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x(ENOSPC, ENOSPC_subvolume_create) \
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x(ENOSPC, ENOSPC_sb) \
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x(ENOSPC, ENOSPC_sb_journal) \
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x(ENOSPC, ENOSPC_sb_quota) \
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x(ENOSPC, ENOSPC_sb_replicas) \
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x(ENOSPC, ENOSPC_sb_members) \
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x(0, open_buckets_empty) \
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x(0, freelist_empty) \
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x(BCH_ERR_freelist_empty, no_buckets_found) \
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x(0, insufficient_devices) \
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x(0, transaction_restart) \
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x(BCH_ERR_transaction_restart, transaction_restart_fault_inject) \
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x(BCH_ERR_transaction_restart, transaction_restart_relock) \
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x(BCH_ERR_transaction_restart, transaction_restart_relock_path) \
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x(BCH_ERR_transaction_restart, transaction_restart_relock_path_intent) \
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x(BCH_ERR_transaction_restart, transaction_restart_relock_after_fill) \
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x(BCH_ERR_transaction_restart, transaction_restart_too_many_iters) \
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x(BCH_ERR_transaction_restart, transaction_restart_lock_node_reused) \
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x(BCH_ERR_transaction_restart, transaction_restart_fill_relock) \
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x(BCH_ERR_transaction_restart, transaction_restart_fill_mem_alloc_fail)\
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x(BCH_ERR_transaction_restart, transaction_restart_mem_realloced) \
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x(BCH_ERR_transaction_restart, transaction_restart_in_traverse_all) \
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x(BCH_ERR_transaction_restart, transaction_restart_would_deadlock) \
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x(BCH_ERR_transaction_restart, transaction_restart_would_deadlock_write)\
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x(BCH_ERR_transaction_restart, transaction_restart_deadlock_recursion_limit)\
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x(BCH_ERR_transaction_restart, transaction_restart_upgrade) \
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x(BCH_ERR_transaction_restart, transaction_restart_key_cache_upgrade) \
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x(BCH_ERR_transaction_restart, transaction_restart_key_cache_fill) \
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x(BCH_ERR_transaction_restart, transaction_restart_key_cache_raced) \
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x(BCH_ERR_transaction_restart, transaction_restart_key_cache_realloced)\
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x(BCH_ERR_transaction_restart, transaction_restart_journal_preres_get) \
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x(BCH_ERR_transaction_restart, transaction_restart_split_race) \
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x(BCH_ERR_transaction_restart, transaction_restart_nested) \
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x(0, no_btree_node) \
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x(BCH_ERR_no_btree_node, no_btree_node_relock) \
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x(BCH_ERR_no_btree_node, no_btree_node_upgrade) \
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x(BCH_ERR_no_btree_node, no_btree_node_drop) \
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x(BCH_ERR_no_btree_node, no_btree_node_lock_root) \
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x(BCH_ERR_no_btree_node, no_btree_node_up) \
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x(BCH_ERR_no_btree_node, no_btree_node_down) \
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x(BCH_ERR_no_btree_node, no_btree_node_init) \
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x(BCH_ERR_no_btree_node, no_btree_node_cached) \
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x(0, lock_fail_root_changed) \
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x(0, journal_reclaim_would_deadlock) \
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x(0, fsck) \
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x(BCH_ERR_fsck, fsck_fix) \
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x(BCH_ERR_fsck, fsck_ignore) \
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x(BCH_ERR_fsck, fsck_errors_not_fixed) \
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x(BCH_ERR_fsck, fsck_repair_unimplemented) \
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x(BCH_ERR_fsck, fsck_repair_impossible) \
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x(0, need_snapshot_cleanup) \
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x(0, need_topology_repair)
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enum bch_errcode {
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BCH_ERR_START = 2048,
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#define x(class, err) BCH_ERR_##err,
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BCH_ERRCODES()
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#undef x
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BCH_ERR_MAX
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};
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const char *bch2_err_str(int);
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bool __bch2_err_matches(int, int);
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static inline bool _bch2_err_matches(int err, int class)
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{
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return err && __bch2_err_matches(err, class);
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}
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#define bch2_err_matches(_err, _class) \
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({ \
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BUILD_BUG_ON(!__builtin_constant_p(_class)); \
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_bch2_err_matches(_err, _class); \
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})
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int __bch2_err_class(int);
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static inline long bch2_err_class(long err)
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{
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return err < 0 ? __bch2_err_class(err) : err;
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}
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#endif /* _BCACHFES_ERRCODE_H */
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