137 lines
4.2 KiB
C
137 lines
4.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_BTREE_UPDATE_H
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#define _BCACHEFS_BTREE_UPDATE_H
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#include "btree_iter.h"
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#include "journal.h"
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struct bch_fs;
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struct btree;
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void bch2_btree_node_lock_for_insert(struct bch_fs *, struct btree *,
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struct btree_iter *);
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bool bch2_btree_bset_insert_key(struct btree_iter *, struct btree *,
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struct btree_node_iter *, struct bkey_i *);
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void bch2_btree_journal_key(struct btree_trans *, struct btree_iter *,
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struct bkey_i *);
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enum {
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__BTREE_INSERT_ATOMIC,
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__BTREE_INSERT_NOUNLOCK,
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__BTREE_INSERT_NOFAIL,
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__BTREE_INSERT_NOCHECK_RW,
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__BTREE_INSERT_LAZY_RW,
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__BTREE_INSERT_USE_RESERVE,
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__BTREE_INSERT_USE_ALLOC_RESERVE,
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__BTREE_INSERT_JOURNAL_REPLAY,
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__BTREE_INSERT_JOURNAL_RESERVED,
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__BTREE_INSERT_NOMARK_OVERWRITES,
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__BTREE_INSERT_NOMARK,
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__BTREE_INSERT_NO_CLEAR_REPLICAS,
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__BTREE_INSERT_BUCKET_INVALIDATE,
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__BTREE_INSERT_NOWAIT,
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__BTREE_INSERT_GC_LOCK_HELD,
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__BCH_HASH_SET_MUST_CREATE,
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__BCH_HASH_SET_MUST_REPLACE,
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};
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/*
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* Don't drop/retake locks before doing btree update, instead return -EINTR if
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* we had to drop locks for any reason
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*/
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#define BTREE_INSERT_ATOMIC (1 << __BTREE_INSERT_ATOMIC)
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/*
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* Don't drop locks _after_ successfully updating btree:
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*/
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#define BTREE_INSERT_NOUNLOCK (1 << __BTREE_INSERT_NOUNLOCK)
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/* Don't check for -ENOSPC: */
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#define BTREE_INSERT_NOFAIL (1 << __BTREE_INSERT_NOFAIL)
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#define BTREE_INSERT_NOCHECK_RW (1 << __BTREE_INSERT_NOCHECK_RW)
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#define BTREE_INSERT_LAZY_RW (1 << __BTREE_INSERT_LAZY_RW)
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/* for copygc, or when merging btree nodes */
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#define BTREE_INSERT_USE_RESERVE (1 << __BTREE_INSERT_USE_RESERVE)
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#define BTREE_INSERT_USE_ALLOC_RESERVE (1 << __BTREE_INSERT_USE_ALLOC_RESERVE)
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/* Insert is for journal replay - don't get journal reservations: */
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#define BTREE_INSERT_JOURNAL_REPLAY (1 << __BTREE_INSERT_JOURNAL_REPLAY)
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#define BTREE_INSERT_JOURNAL_RESERVED (1 << __BTREE_INSERT_JOURNAL_RESERVED)
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/* Don't mark overwrites, just new key: */
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#define BTREE_INSERT_NOMARK_OVERWRITES (1 << __BTREE_INSERT_NOMARK_OVERWRITES)
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/* Don't call mark new key at all: */
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#define BTREE_INSERT_NOMARK (1 << __BTREE_INSERT_NOMARK)
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#define BTREE_INSERT_NO_CLEAR_REPLICAS (1 << __BTREE_INSERT_NO_CLEAR_REPLICAS)
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#define BTREE_INSERT_BUCKET_INVALIDATE (1 << __BTREE_INSERT_BUCKET_INVALIDATE)
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/* Don't block on allocation failure (for new btree nodes: */
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#define BTREE_INSERT_NOWAIT (1 << __BTREE_INSERT_NOWAIT)
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#define BTREE_INSERT_GC_LOCK_HELD (1 << __BTREE_INSERT_GC_LOCK_HELD)
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#define BCH_HASH_SET_MUST_CREATE (1 << __BCH_HASH_SET_MUST_CREATE)
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#define BCH_HASH_SET_MUST_REPLACE (1 << __BCH_HASH_SET_MUST_REPLACE)
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int bch2_btree_delete_at(struct btree_trans *, struct btree_iter *, unsigned);
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int bch2_btree_insert(struct bch_fs *, enum btree_id, struct bkey_i *,
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struct disk_reservation *, u64 *, int flags);
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int bch2_btree_delete_at_range(struct btree_trans *, struct btree_iter *,
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struct bpos, u64 *);
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int bch2_btree_delete_range(struct bch_fs *, enum btree_id,
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struct bpos, struct bpos, u64 *);
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int bch2_btree_node_rewrite(struct bch_fs *c, struct btree_iter *,
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__le64, unsigned);
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int bch2_btree_node_update_key(struct bch_fs *, struct btree_iter *,
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struct btree *, struct bkey_i_btree_ptr *);
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int bch2_trans_commit(struct btree_trans *,
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struct disk_reservation *,
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u64 *, unsigned);
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static inline void bch2_trans_update(struct btree_trans *trans,
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struct btree_iter *iter,
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struct bkey_i *k)
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{
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EBUG_ON(trans->nr_updates >= trans->nr_iters + 4);
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iter->flags |= BTREE_ITER_KEEP_UNTIL_COMMIT;
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trans->updates[trans->nr_updates++] = (struct btree_insert_entry) {
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.iter = iter, .k = k
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};
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}
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#define bch2_trans_do(_c, _journal_seq, _flags, _do) \
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({ \
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struct btree_trans trans; \
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int _ret; \
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\
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bch2_trans_init(&trans, (_c), 0, 0); \
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\
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do { \
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bch2_trans_begin(&trans); \
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\
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_ret = (_do) ?: bch2_trans_commit(&trans, NULL, \
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(_journal_seq), (_flags)); \
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} while (_ret == -EINTR); \
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\
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bch2_trans_exit(&trans); \
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_ret; \
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})
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#define trans_for_each_update(_trans, _i) \
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for ((_i) = (_trans)->updates; \
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(_i) < (_trans)->updates + (_trans)->nr_updates; \
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(_i)++)
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#endif /* _BCACHEFS_BTREE_UPDATE_H */
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