Re: [Qemu-devel] Re: [PATCH] Revert "posix-aio-compat: avoid signal race when spawning a thread"

[Jamie Lokier]

Michael S. Tsirkin wrote:
> And qemu_service_io does a *ton* of things.
> Questions:
> -  Do we need the call to qemu_service_io? Seems to
>    behave the same with and without it.
> -  Are all of the data structures touched by qemu_service_io
>    protected by blocking signals before access?

Plus:

-  Are all the things done by qemu_service_io async-signal-safe?
   E.g. any use of pthread primitives is not async-signal-safe.
   I don't know if thread-local storage is.

-- Jamie