Retrieving an Episerver 6 global setting value

In my case it looks like this in the property global settings view in admin mode:

The one I want to get the values from has the display name Avdelningar. Here's what I ended up with:

private PropertyFilteredRolesSettings GetPropertyFilteredRolesSettingsByName(string displayName)
{
    var p = new PropertySettingsRepository();
    var globals = p.GetGlobals(typeof(PropertyFilteredRolesSettings));

    foreach (var setting in globals)
    {
        if (setting.DisplayName.Equals(displayName, StringComparison.OrdinalIgnoreCase))
        {
            return ((PropertyFilteredRolesSettings) setting.PropertySettings);
        }
    }

    throw new Exception("Filtered Roles Settings Display Name Not Found");
}

// Usage example
var departmentSettings = GetPropertyFilteredRolesSettingsByName("Avdelningar");

if (Regex.Match("JustSomeRolename", departmentSettings.FilterRolesRegexPattern,
       RegexOptions.IgnoreCase).Success)
{
...
}