[Tarantool-patches] [PATCH v3 0/4] fiber: keep reference to userdata if fiber created once

[Vladislav Shpilevoy]

Hi! Thanks for the patch.

So, did you see my comment in the previous version?
Maybe add an own constant to fiber.h and add a static
assertion into the main executable?

This would make the code simpler IMHO. The solution
about yields and Lua GC uses extern function only because
it actually provides notably better perf.