Re: [PATCH v5 0/5] MR741: ntdll: Implement NtFlushProcessWriteBuffers.

[Zebediah Figura (＠zfigura)]

Zebediah Figura (@zfigura) commented about dlls/ntdll/unix/server.c:
>  sigset_t old_set;
>  int signaled;
>
> - /* ensure writes so far are visible to other threads */
> - MemoryBarrier();
> -

I don't think this is a sufficient explanation. What reordering does this prevent? What memory barrier is this paired with? (Itself?)