1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_BTREE_UPDATE_H
3 #define _BCACHEFS_BTREE_UPDATE_H
5 #include "btree_iter.h"
11 void bch2_btree_node_prep_for_write(struct btree_trans *,
12 struct btree_path *, struct btree *);
13 bool bch2_btree_bset_insert_key(struct btree_trans *, struct btree_path *,
14 struct btree *, struct btree_node_iter *,
17 int bch2_btree_node_flush0(struct journal *, struct journal_entry_pin *, u64);
18 int bch2_btree_node_flush1(struct journal *, struct journal_entry_pin *, u64);
19 void bch2_btree_add_journal_pin(struct bch_fs *, struct btree *, u64);
21 void bch2_btree_insert_key_leaf(struct btree_trans *, struct btree_path *,
22 struct bkey_i *, u64);
24 enum btree_insert_flags {
25 /* First two bits for journal watermark: */
26 __BTREE_INSERT_NOFAIL = 2,
27 __BTREE_INSERT_NOCHECK_RW,
28 __BTREE_INSERT_LAZY_RW,
29 __BTREE_INSERT_USE_RESERVE,
30 __BTREE_INSERT_JOURNAL_REPLAY,
31 __BTREE_INSERT_JOURNAL_RECLAIM,
32 __BTREE_INSERT_NOWAIT,
33 __BTREE_INSERT_GC_LOCK_HELD,
34 __BCH_HASH_SET_MUST_CREATE,
35 __BCH_HASH_SET_MUST_REPLACE,
38 /* Don't check for -ENOSPC: */
39 #define BTREE_INSERT_NOFAIL (1 << __BTREE_INSERT_NOFAIL)
41 #define BTREE_INSERT_NOCHECK_RW (1 << __BTREE_INSERT_NOCHECK_RW)
42 #define BTREE_INSERT_LAZY_RW (1 << __BTREE_INSERT_LAZY_RW)
44 /* for copygc, or when merging btree nodes */
45 #define BTREE_INSERT_USE_RESERVE (1 << __BTREE_INSERT_USE_RESERVE)
47 /* Insert is for journal replay - don't get journal reservations: */
48 #define BTREE_INSERT_JOURNAL_REPLAY (1 << __BTREE_INSERT_JOURNAL_REPLAY)
50 /* Insert is being called from journal reclaim path: */
51 #define BTREE_INSERT_JOURNAL_RECLAIM (1 << __BTREE_INSERT_JOURNAL_RECLAIM)
53 /* Don't block on allocation failure (for new btree nodes: */
54 #define BTREE_INSERT_NOWAIT (1 << __BTREE_INSERT_NOWAIT)
55 #define BTREE_INSERT_GC_LOCK_HELD (1 << __BTREE_INSERT_GC_LOCK_HELD)
57 #define BCH_HASH_SET_MUST_CREATE (1 << __BCH_HASH_SET_MUST_CREATE)
58 #define BCH_HASH_SET_MUST_REPLACE (1 << __BCH_HASH_SET_MUST_REPLACE)
60 int bch2_btree_delete_extent_at(struct btree_trans *, struct btree_iter *,
62 int bch2_btree_delete_at(struct btree_trans *, struct btree_iter *, unsigned);
63 int bch2_btree_delete_at_buffered(struct btree_trans *, enum btree_id, struct bpos);
65 int bch2_btree_insert_nonextent(struct btree_trans *, enum btree_id,
66 struct bkey_i *, enum btree_update_flags);
68 int __bch2_btree_insert(struct btree_trans *, enum btree_id, struct bkey_i *,
69 enum btree_update_flags);
70 int bch2_btree_insert(struct bch_fs *, enum btree_id, struct bkey_i *,
71 struct disk_reservation *, u64 *, int flags);
73 int bch2_btree_delete_range_trans(struct btree_trans *, enum btree_id,
74 struct bpos, struct bpos, unsigned, u64 *);
75 int bch2_btree_delete_range(struct bch_fs *, enum btree_id,
76 struct bpos, struct bpos, unsigned, u64 *);
78 int bch2_btree_node_rewrite(struct btree_trans *, struct btree_iter *,
79 struct btree *, unsigned);
80 void bch2_btree_node_rewrite_async(struct bch_fs *, struct btree *);
81 int bch2_btree_node_update_key(struct btree_trans *, struct btree_iter *,
82 struct btree *, struct bkey_i *, bool);
83 int bch2_btree_node_update_key_get_iter(struct btree_trans *,
84 struct btree *, struct bkey_i *, bool);
86 int bch2_trans_update_extent(struct btree_trans *, struct btree_iter *,
87 struct bkey_i *, enum btree_update_flags);
89 int __must_check bch2_trans_update(struct btree_trans *, struct btree_iter *,
90 struct bkey_i *, enum btree_update_flags);
91 int __must_check bch2_trans_update_buffered(struct btree_trans *,
92 enum btree_id, struct bkey_i *);
94 void bch2_trans_commit_hook(struct btree_trans *,
95 struct btree_trans_commit_hook *);
96 int __bch2_trans_commit(struct btree_trans *, unsigned);
98 int bch2_fs_log_msg(struct bch_fs *, const char *, ...);
99 int bch2_journal_log_msg(struct bch_fs *, const char *, ...);
102 * bch2_trans_commit - insert keys at given iterator positions
104 * This is main entry point for btree updates.
107 * -EROFS: filesystem read only
108 * -EIO: journal or btree node IO error
110 static inline int bch2_trans_commit(struct btree_trans *trans,
111 struct disk_reservation *disk_res,
115 trans->disk_res = disk_res;
116 trans->journal_seq = journal_seq;
118 return __bch2_trans_commit(trans, flags);
121 #define commit_do(_trans, _disk_res, _journal_seq, _flags, _do) \
122 lockrestart_do(_trans, _do ?: bch2_trans_commit(_trans, (_disk_res),\
123 (_journal_seq), (_flags)))
125 #define nested_commit_do(_trans, _disk_res, _journal_seq, _flags, _do) \
126 nested_lockrestart_do(_trans, _do ?: bch2_trans_commit(_trans, (_disk_res),\
127 (_journal_seq), (_flags)))
129 #define bch2_trans_do(_c, _disk_res, _journal_seq, _flags, _do) \
131 struct btree_trans trans; \
134 bch2_trans_init(&trans, (_c), 0, 0); \
135 _ret = commit_do(&trans, _disk_res, _journal_seq, _flags, _do); \
136 bch2_trans_exit(&trans); \
141 #define bch2_trans_run(_c, _do) \
143 struct btree_trans trans; \
146 bch2_trans_init(&trans, (_c), 0, 0); \
148 bch2_trans_exit(&trans); \
153 #define trans_for_each_update(_trans, _i) \
154 for ((_i) = (_trans)->updates; \
155 (_i) < (_trans)->updates + (_trans)->nr_updates; \
158 #define trans_for_each_wb_update(_trans, _i) \
159 for ((_i) = (_trans)->wb_updates; \
160 (_i) < (_trans)->wb_updates + (_trans)->nr_wb_updates; \
163 static inline void bch2_trans_reset_updates(struct btree_trans *trans)
165 struct btree_insert_entry *i;
167 trans_for_each_update(trans, i)
168 bch2_path_put(trans, i->path, true);
170 trans->extra_journal_res = 0;
171 trans->nr_updates = 0;
172 trans->nr_wb_updates = 0;
173 trans->wb_updates = NULL;
175 trans->extra_journal_entries.nr = 0;
177 if (trans->fs_usage_deltas) {
178 trans->fs_usage_deltas->used = 0;
179 memset((void *) trans->fs_usage_deltas +
180 offsetof(struct replicas_delta_list, memset_start), 0,
181 (void *) &trans->fs_usage_deltas->memset_end -
182 (void *) &trans->fs_usage_deltas->memset_start);
186 #endif /* _BCACHEFS_BTREE_UPDATE_H */