struct btree_write {
struct journal_entry_pin journal;
- struct closure_waitlist wait;
};
struct btree_alloc {
BKEY_PADDED(k);
};
+struct btree_bkey_cached_common {
+ struct six_lock lock;
+ u8 level;
+ u8 btree_id;
+};
+
struct btree {
- /* Hottest entries first */
+ struct btree_bkey_cached_common c;
+
struct rhash_head hash;
u64 hash_val;
- struct six_lock lock;
-
unsigned long flags;
u16 written;
- u8 level;
- u8 btree_id;
u8 nsets;
u8 nr_key_bits;
enum btree_iter_type {
BTREE_ITER_KEYS,
BTREE_ITER_NODES,
+ BTREE_ITER_CACHED,
};
#define BTREE_ITER_TYPE ((1 << 2) - 1)
#define BTREE_ITER_IS_EXTENTS (1 << 6)
#define BTREE_ITER_ERROR (1 << 7)
#define BTREE_ITER_SET_POS_AFTER_COMMIT (1 << 8)
+#define BTREE_ITER_CACHED_NOFILL (1 << 9)
+#define BTREE_ITER_CACHED_NOCREATE (1 << 10)
+
+#define BTREE_ITER_USER_FLAGS \
+ (BTREE_ITER_SLOTS \
+ |BTREE_ITER_INTENT \
+ |BTREE_ITER_PREFETCH \
+ |BTREE_ITER_CACHED_NOFILL \
+ |BTREE_ITER_CACHED_NOCREATE)
enum btree_iter_uptodate {
BTREE_ITER_UPTODATE = 0,
BTREE_ITER_NEED_TRAVERSE = 3,
};
+#define BTREE_ITER_NO_NODE_GET_LOCKS ((struct btree *) 1)
+#define BTREE_ITER_NO_NODE_DROP ((struct btree *) 2)
+#define BTREE_ITER_NO_NODE_LOCK_ROOT ((struct btree *) 3)
+#define BTREE_ITER_NO_NODE_UP ((struct btree *) 4)
+#define BTREE_ITER_NO_NODE_DOWN ((struct btree *) 5)
+#define BTREE_ITER_NO_NODE_INIT ((struct btree *) 6)
+#define BTREE_ITER_NO_NODE_ERROR ((struct btree *) 7)
+
/*
* @pos - iterator's current position
* @level - current btree depth
u16 flags;
u8 idx;
- enum btree_iter_uptodate uptodate:4;
enum btree_id btree_id:4;
+ enum btree_iter_uptodate uptodate:4;
unsigned level:4,
+ min_depth:4,
locks_want:4,
nodes_locked:4,
nodes_intent_locked:4;
* bch2_btree_iter_next_slot() can correctly advance pos.
*/
struct bkey k;
+ unsigned long ip_allocated;
};
-static inline enum btree_iter_type btree_iter_type(struct btree_iter *iter)
+static inline enum btree_iter_type
+btree_iter_type(const struct btree_iter *iter)
{
return iter->flags & BTREE_ITER_TYPE;
}
+static inline struct btree_iter_level *iter_l(struct btree_iter *iter)
+{
+ return iter->l + iter->level;
+}
+
+struct btree_key_cache {
+ struct mutex lock;
+ struct rhashtable table;
+ struct list_head freed;
+ struct list_head clean;
+};
+
+struct bkey_cached_key {
+ u32 btree_id;
+ struct bpos pos;
+} __packed;
+
+#define BKEY_CACHED_DIRTY 0
+
+struct bkey_cached {
+ struct btree_bkey_cached_common c;
+
+ unsigned long flags;
+ u8 u64s;
+ bool valid;
+ struct bkey_cached_key key;
+
+ struct rhash_head hash;
+ struct list_head list;
+
+ struct journal_preres res;
+ struct journal_entry_pin journal;
+
+ struct bkey_i *k;
+};
+
struct btree_insert_entry {
unsigned trigger_flags;
unsigned trans_triggers_run:1;
struct btree_iter *iter;
};
+#ifndef CONFIG_LOCKDEP
#define BTREE_ITER_MAX 64
+#else
+#define BTREE_ITER_MAX 32
+#endif
struct btree_trans {
struct bch_fs *c;
+#ifdef CONFIG_BCACHEFS_DEBUG
+ struct list_head list;
+ struct btree *locking;
+ unsigned locking_iter_idx;
+ struct bpos locking_pos;
+ u8 locking_btree_id;
+ u8 locking_level;
+ pid_t pid;
+#endif
unsigned long ip;
u64 iters_linked;
u8 nr_iters;
u8 nr_updates;
+ u8 nr_updates2;
u8 size;
unsigned used_mempool:1;
unsigned error:1;
unsigned nounlock:1;
unsigned need_reset:1;
+ unsigned in_traverse_all:1;
unsigned mem_top;
unsigned mem_bytes;
struct btree_iter *iters;
struct btree_insert_entry *updates;
+ struct btree_insert_entry *updates2;
/* update path: */
+ struct jset_entry *extra_journal_entries;
+ unsigned extra_journal_entry_u64s;
+ struct journal_entry_pin *journal_pin;
+
struct journal_res journal_res;
struct journal_preres journal_preres;
u64 *journal_seq;
struct btree_iter iters_onstack[2];
struct btree_insert_entry updates_onstack[2];
+ struct btree_insert_entry updates2_onstack[2];
};
#define BTREE_FLAG(flag) \
/* Type of keys @b contains: */
static inline enum btree_node_type btree_node_type(struct btree *b)
{
- return __btree_node_type(b->level, b->btree_id);
+ return __btree_node_type(b->c.level, b->c.btree_id);
}
static inline bool btree_node_type_is_extents(enum btree_node_type type)
struct btree_root {
struct btree *b;
- struct btree_update *as;
-
/* On disk root - see async splits: */
__BKEY_PADDED(key, BKEY_BTREE_PTR_VAL_U64s_MAX);
u8 level;