I have ClickHouse server running in virtual environment that reports the following warning:

```
# clickhouse-client
ClickHouse client version 22.7.2.15 (official build).
Connecting to localhost:9000 as user default.
Connected to ClickHouse server version 22.7.2 revision 54457.

Warnings:
 * Linux is not using a fast TSC clock source. Performance can be degraded. Check /sys/devices/system/clocksource/clocksource0/current_clocksource

# cat /sys/devices/system/clocksource/clocksource0/current_clocksource
kvm-clock
```

It looks like a false positive as kvm-clock is considered a preferable clock source for kvm-based VMs.
https://opensource.com/article/17/6/timekeeping-linux-vms

Regardless of whether it's a bug or not, I'd like to have some mechanism that allows to disable particular warnings. There are may be other questionable warnings in the future.

{
    std::lock_guard lock(shared->storage_policies_mutex);
    if (policy_name.empty())
    {
        shared->tmp_path = path;
        if (!shared->tmp_path.ends_with('/'))
            shared->tmp_path += '/';
        auto disk = std::make_shared<DiskLocal>("_tmp_default", shared->tmp_path, 0);
        shared->tmp_volume = std::make_shared<SingleDiskVolume>("_tmp_default", disk, 0);
    }
    else
    {
        StoragePolicyPtr tmp_policy = getStoragePolicySelector(lock)->get(policy_name);
        if (tmp_policy->getVolumes().size() != 1)
             throw Exception(ErrorCodes::NO_ELEMENTS_IN_CONFIG,
                "Policy '{} is used temporary files, such policy should have exactly one volume", policy_name);
        shared->tmp_volume = tmp_policy->getVolume(0);
    }
    if (shared->tmp_volume->getDisks().empty())
         throw Exception("No disks volume for temporary files", ErrorCodes::NO_ELEMENTS_IN_CONFIG);
    return shared->tmp_volume;
}
void Context::setFlagsPath(const String & path)