Hi, I've been rebasing the patch for online resizing of shared memory, and noticed something strange about IoWorkerMain: although it sets the handler SignalHandlerForConfigReload, it doesn't look like it acts upon ConfigReloadPending. From what I see it happens because it only does CHECK_FOR_INTERRUPTS in the main worker loop, which doesn't handle ConfigReloadPending.
In the context of shared memory resizing patch it means I/O workers are not receiving the new value of NBuffers and crash. Adding something like pgaio_worker_process_interrupts to deal with ConfigReloadPending at the beginning of the main worker loop seems to solve the issue. But I haven't found any discussion about config reload in I/O workers, was this omission intentional?
