Symbol: dbuf_refcount
usr/src/uts/common/fs/zfs/dbuf.c
3102
if (db == found_db && dbuf_refcount(db) > db->db_dirtycnt) {
usr/src/uts/common/fs/zfs/sys/dbuf.h
338
uint64_t dbuf_refcount(dmu_buf_impl_t *db);