diff options
Diffstat (limited to 'fs/bcachefs/btree_types.h')
| -rw-r--r-- | fs/bcachefs/btree_types.h | 129 |
1 files changed, 98 insertions, 31 deletions
diff --git a/fs/bcachefs/btree_types.h b/fs/bcachefs/btree_types.h index e0c982a4195c..d63db4fefe73 100644 --- a/fs/bcachefs/btree_types.h +++ b/fs/bcachefs/btree_types.h @@ -163,9 +163,21 @@ struct btree_cache { /* Number of elements in live + freeable lists */ unsigned used; unsigned reserve; + unsigned freed; + unsigned not_freed_lock_intent; + unsigned not_freed_lock_write; + unsigned not_freed_dirty; + unsigned not_freed_read_in_flight; + unsigned not_freed_write_in_flight; + unsigned not_freed_noevict; + unsigned not_freed_write_blocked; + unsigned not_freed_will_make_reachable; + unsigned not_freed_access_bit; atomic_t dirty; struct shrinker *shrink; + unsigned used_by_btree[BTREE_ID_NR]; + /* * If we need to allocate memory for a new btree node and that * allocation fails, we can cannibalize another node in the btree cache @@ -187,36 +199,89 @@ struct btree_node_iter { } data[MAX_BSETS]; }; +#define BTREE_ITER_FLAGS() \ + x(slots) \ + x(intent) \ + x(prefetch) \ + x(is_extents) \ + x(not_extents) \ + x(cached) \ + x(with_key_cache) \ + x(with_updates) \ + x(with_journal) \ + x(snapshot_field) \ + x(all_snapshots) \ + x(filter_snapshots) \ + x(nopreserve) \ + x(cached_nofill) \ + x(key_cache_fill) \ + +#define STR_HASH_FLAGS() \ + x(must_create) \ + x(must_replace) + +#define BTREE_UPDATE_FLAGS() \ + x(internal_snapshot_node) \ + x(nojournal) \ + x(key_cache_reclaim) + + /* - * Iterate over all possible positions, synthesizing deleted keys for holes: - */ -static const __maybe_unused u16 BTREE_ITER_SLOTS = 1 << 0; -/* - * Indicates that intent locks should be taken on leaf nodes, because we expect - * to be doing updates: - */ -static const __maybe_unused u16 BTREE_ITER_INTENT = 1 << 1; -/* - * Causes the btree iterator code to prefetch additional btree nodes from disk: - */ -static const __maybe_unused u16 BTREE_ITER_PREFETCH = 1 << 2; -/* - * Used in bch2_btree_iter_traverse(), to indicate whether we're searching for - * @pos or the first key strictly greater than @pos + * BTREE_TRIGGER_norun - don't run triggers at all + * + * BTREE_TRIGGER_transactional - we're running transactional triggers as part of + * a transaction commit: triggers may generate new updates + * + * BTREE_TRIGGER_atomic - we're running atomic triggers during a transaction + * commit: we have our journal reservation, we're holding btree node write + * locks, and we know the transaction is going to commit (returning an error + * here is a fatal error, causing us to go emergency read-only) + * + * BTREE_TRIGGER_gc - we're in gc/fsck: running triggers to recalculate e.g. disk usage + * + * BTREE_TRIGGER_insert - @new is entering the btree + * BTREE_TRIGGER_overwrite - @old is leaving the btree + * + * BTREE_TRIGGER_bucket_invalidate - signal from bucket invalidate path to alloc + * trigger */ -static const __maybe_unused u16 BTREE_ITER_IS_EXTENTS = 1 << 3; -static const __maybe_unused u16 BTREE_ITER_NOT_EXTENTS = 1 << 4; -static const __maybe_unused u16 BTREE_ITER_CACHED = 1 << 5; -static const __maybe_unused u16 BTREE_ITER_WITH_KEY_CACHE = 1 << 6; -static const __maybe_unused u16 BTREE_ITER_WITH_UPDATES = 1 << 7; -static const __maybe_unused u16 BTREE_ITER_WITH_JOURNAL = 1 << 8; -static const __maybe_unused u16 __BTREE_ITER_ALL_SNAPSHOTS = 1 << 9; -static const __maybe_unused u16 BTREE_ITER_ALL_SNAPSHOTS = 1 << 10; -static const __maybe_unused u16 BTREE_ITER_FILTER_SNAPSHOTS = 1 << 11; -static const __maybe_unused u16 BTREE_ITER_NOPRESERVE = 1 << 12; -static const __maybe_unused u16 BTREE_ITER_CACHED_NOFILL = 1 << 13; -static const __maybe_unused u16 BTREE_ITER_KEY_CACHE_FILL = 1 << 14; -#define __BTREE_ITER_FLAGS_END 15 +#define BTREE_TRIGGER_FLAGS() \ + x(norun) \ + x(transactional) \ + x(atomic) \ + x(check_repair) \ + x(gc) \ + x(insert) \ + x(overwrite) \ + x(is_root) \ + x(bucket_invalidate) + +enum { +#define x(n) BTREE_ITER_FLAG_BIT_##n, + BTREE_ITER_FLAGS() + STR_HASH_FLAGS() + BTREE_UPDATE_FLAGS() + BTREE_TRIGGER_FLAGS() +#undef x +}; + +/* iter flags must fit in a u16: */ +//BUILD_BUG_ON(BTREE_ITER_FLAG_BIT_key_cache_fill > 15); + +enum btree_iter_update_trigger_flags { +#define x(n) BTREE_ITER_##n = 1U << BTREE_ITER_FLAG_BIT_##n, + BTREE_ITER_FLAGS() +#undef x +#define x(n) STR_HASH_##n = 1U << BTREE_ITER_FLAG_BIT_##n, + STR_HASH_FLAGS() +#undef x +#define x(n) BTREE_UPDATE_##n = 1U << BTREE_ITER_FLAG_BIT_##n, + BTREE_UPDATE_FLAGS() +#undef x +#define x(n) BTREE_TRIGGER_##n = 1U << BTREE_ITER_FLAG_BIT_##n, + BTREE_TRIGGER_FLAGS() +#undef x +}; enum btree_path_uptodate { BTREE_ITER_UPTODATE = 0, @@ -307,7 +372,7 @@ struct btree_iter { */ struct bkey k; - /* BTREE_ITER_WITH_JOURNAL: */ + /* BTREE_ITER_with_journal: */ size_t journal_idx; #ifdef TRACK_PATH_ALLOCATED unsigned long ip_allocated; @@ -321,9 +386,9 @@ struct bkey_cached { struct btree_bkey_cached_common c; unsigned long flags; + unsigned long btree_trans_barrier_seq; u16 u64s; bool valid; - u32 btree_trans_barrier_seq; struct bkey_cached_key key; struct rhash_head hash; @@ -418,6 +483,8 @@ struct btree_trans { u8 lock_must_abort; bool lock_may_not_fail:1; bool srcu_held:1; + bool locked:1; + bool write_locked:1; bool used_mempool:1; bool in_traverse_all:1; bool paths_sorted:1; @@ -425,13 +492,13 @@ struct btree_trans { bool journal_transaction_names:1; bool journal_replay_not_finished:1; bool notrace_relock_fail:1; - bool write_locked:1; enum bch_errcode restarted:16; u32 restart_count; u64 last_begin_time; unsigned long last_begin_ip; unsigned long last_restarted_ip; + unsigned long last_unlock_ip; unsigned long srcu_lock_time; const char *fn; |