extern struct lu_device_type lov_device_type;
/* pools */
-extern cfs_hash_ops_t pool_hash_operations;
+extern struct cfs_hash_ops pool_hash_operations;
/* ost_pool methods */
int lov_ost_pool_init(struct ost_pool *op, unsigned int count);
int lov_ost_pool_extend(struct ost_pool *op, unsigned int min_count);