derp: prevent concurrent access to multiForwarder map

Browse Source

Instead of iterating over the map to determine the preferred forwarder
on every packet (which could happen concurrently with map mutations),
store it separately in an atomic variable.

Fixes #6445

Signed-off-by: Anton Tolchanov <anton@tailscale.com>

...

This commit is contained in:

500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f