#define BTREE_TRANS_MEM_MAX (1U << 16)
+#define BTREE_TRANS_MAX_LOCK_HOLD_TIME_NS 10000
+
struct btree_trans {
struct bch_fs *c;
const char *fn;
struct list_head list;
+ u64 last_begin_time;
struct btree *locking;
unsigned locking_path_idx;
struct bpos locking_pos;