On 2012-03-05 15:24, Avi Kivity wrote:
>> Long-term, I'd like to cut out certain file descriptors from the main
>> loop and process them completely in separate threads (for separate
>> locking, prioritization etc.). Dunno how NBD works, but maybe it should
>> be reworked like this already.
> 
> Ideally qemu_set_fd_handler2() should be made thread local, and each
> device thread would run a copy of the main loop, just working on
> different data.

qemu_set_fd_handler2 may not only be called over an iothread. Rather, we
need an object and associated lock that is related to the io-path (i.e.
frontend device + backend driver). That object has to be passed to
services like qemu_set_fd_handler2.

Jan

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Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
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