mirror of
https://github.com/koverstreet/bcachefs-tools.git
synced 2025-02-03 00:00:07 +03:00
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
#ifndef _BCACHE_BTREE_IO_H
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#define _BCACHE_BTREE_IO_H
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struct bch_fs;
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struct btree_write;
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struct btree;
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struct btree_iter;
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static inline void btree_node_io_unlock(struct btree *b)
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{
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EBUG_ON(!btree_node_write_in_flight(b));
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clear_btree_node_write_in_flight(b);
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wake_up_bit(&b->flags, BTREE_NODE_write_in_flight);
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}
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static inline void btree_node_io_lock(struct btree *b)
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{
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wait_on_bit_lock_io(&b->flags, BTREE_NODE_write_in_flight,
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TASK_UNINTERRUPTIBLE);
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}
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static inline void btree_node_wait_on_io(struct btree *b)
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{
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wait_on_bit_io(&b->flags, BTREE_NODE_write_in_flight,
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TASK_UNINTERRUPTIBLE);
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}
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static inline bool btree_node_may_write(struct btree *b)
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{
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return list_empty_careful(&b->write_blocked);
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}
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enum compact_mode {
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COMPACT_LAZY,
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COMPACT_WRITTEN,
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COMPACT_WRITTEN_NO_WRITE_LOCK,
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};
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bool __bch2_compact_whiteouts(struct bch_fs *, struct btree *, enum compact_mode);
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static inline bool bch2_maybe_compact_whiteouts(struct bch_fs *c, struct btree *b)
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{
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struct bset_tree *t;
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for_each_bset(b, t) {
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unsigned live_u64s = b->nr.bset_u64s[t - b->set];
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unsigned bset_u64s = le16_to_cpu(bset(b, t)->u64s);
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if (live_u64s * 4 < bset_u64s * 3)
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goto compact;
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}
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return false;
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compact:
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return __bch2_compact_whiteouts(c, b, COMPACT_LAZY);
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}
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void bch2_btree_sort_into(struct bch_fs *, struct btree *, struct btree *);
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void bch2_btree_build_aux_trees(struct btree *);
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void bch2_btree_init_next(struct bch_fs *, struct btree *,
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struct btree_iter *);
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void bch2_btree_node_read_done(struct bch_fs *, struct btree *,
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struct bch_dev *, const struct bch_extent_ptr *);
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void bch2_btree_node_read(struct bch_fs *, struct btree *);
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int bch2_btree_root_read(struct bch_fs *, enum btree_id,
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const struct bkey_i *, unsigned);
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void bch2_btree_complete_write(struct bch_fs *, struct btree *,
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struct btree_write *);
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void __bch2_btree_node_write(struct bch_fs *, struct btree *,
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struct closure *, enum six_lock_type);
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bool bch2_btree_post_write_cleanup(struct bch_fs *, struct btree *);
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void bch2_btree_node_write(struct bch_fs *, struct btree *,
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struct closure *, enum six_lock_type);
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#define bch2_btree_node_write_dirty(_c, _b, _cl, cond) \
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do { \
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while ((_b)->written && btree_node_dirty(_b) && (cond)) { \
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if (!btree_node_may_write(_b)) \
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break; \
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\
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if (!btree_node_write_in_flight(_b)) { \
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bch2_btree_node_write(_c, _b, _cl, SIX_LOCK_read);\
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break; \
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} \
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\
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six_unlock_read(&(_b)->lock); \
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btree_node_wait_on_io(_b); \
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six_lock_read(&(_b)->lock); \
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} \
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} while (0)
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void bch2_btree_flush(struct bch_fs *);
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void bch2_btree_node_flush_journal_entries(struct bch_fs *, struct btree *,
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struct closure *);
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#endif /* _BCACHE_BTREE_IO_H */
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