admin_memory_limit

This only applies to administrators, who may require more memory for tasks like updates. Memory limits when processing images (uploaded or edited by users of any role) are handled separately. The WP_MAX_MEMORY_LIMIT constant specifically defines the maximum memory limit available when in the administration back end. The default is 256M (256 megabytes of memory) or the original memory_limit php.ini value if this is higher.

// rejestracja funkcji zwrotnej
add_filter( 'admin_memory_limit', 'twoja_funkcja' );

function twoja_funkcja($param_1) {
	// Twój kod
}