From f5baaf48e3e82b1caf9f5cd1207d4d6feba3a2e5 Mon Sep 17 00:00:00 2001 From: Thomas Bertschinger Date: Mon, 15 Jan 2024 23:41:02 -0700 Subject: move Rust sources to top level, C sources into c_src This moves the Rust sources out of rust_src/ and into the top level. Running the bcachefs executable out of the development tree is now: $ ./target/release/bcachefs command or $ cargo run --profile release -- command instead of "./bcachefs command". Building and installing is still: $ make && make install Signed-off-by: Thomas Bertschinger Signed-off-by: Kent Overstreet --- c_src/libbcachefs/btree_key_cache.h | 46 +++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 c_src/libbcachefs/btree_key_cache.h (limited to 'c_src/libbcachefs/btree_key_cache.h') diff --git a/c_src/libbcachefs/btree_key_cache.h b/c_src/libbcachefs/btree_key_cache.h new file mode 100644 index 00000000..e6b2cd0d --- /dev/null +++ b/c_src/libbcachefs/btree_key_cache.h @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _BCACHEFS_BTREE_KEY_CACHE_H +#define _BCACHEFS_BTREE_KEY_CACHE_H + +static inline size_t bch2_nr_btree_keys_need_flush(struct bch_fs *c) +{ + size_t nr_dirty = atomic_long_read(&c->btree_key_cache.nr_dirty); + size_t nr_keys = atomic_long_read(&c->btree_key_cache.nr_keys); + size_t max_dirty = 1024 + nr_keys / 2; + + return max_t(ssize_t, 0, nr_dirty - max_dirty); +} + +static inline bool bch2_btree_key_cache_must_wait(struct bch_fs *c) +{ + size_t nr_dirty = atomic_long_read(&c->btree_key_cache.nr_dirty); + size_t nr_keys = atomic_long_read(&c->btree_key_cache.nr_keys); + size_t max_dirty = 4096 + (nr_keys * 3) / 4; + + return nr_dirty > max_dirty; +} + +int bch2_btree_key_cache_journal_flush(struct journal *, + struct journal_entry_pin *, u64); + +struct bkey_cached * +bch2_btree_key_cache_find(struct bch_fs *, enum btree_id, struct bpos); + +int bch2_btree_path_traverse_cached(struct btree_trans *, struct btree_path *, + unsigned); + +bool bch2_btree_insert_key_cached(struct btree_trans *, unsigned, + struct btree_insert_entry *); +void bch2_btree_key_cache_drop(struct btree_trans *, + struct btree_path *); + +void bch2_fs_btree_key_cache_exit(struct btree_key_cache *); +void bch2_fs_btree_key_cache_init_early(struct btree_key_cache *); +int bch2_fs_btree_key_cache_init(struct btree_key_cache *); + +void bch2_btree_key_cache_to_text(struct printbuf *, struct btree_key_cache *); + +void bch2_btree_key_cache_exit(void); +int __init bch2_btree_key_cache_init(void); + +#endif /* _BCACHEFS_BTREE_KEY_CACHE_H */ -- cgit v1.2.3