On 2012-04-04 17:29, Paolo Bonzini wrote: > Il 04/04/2012 17:24, Jan Kiszka ha scritto: >>>> For patches 3 and 4, I'd rather use an EventNotifier... >> ...which still lacks support for non-eventfd systems. Hmm, I guess it's >> time to consolidate both. > > Perhaps you can take the relevant patches out of the thread-blocks > branch at git://github.com/pbonzini/qemu.git? The iothread eventfd > could also use an EventNotifier.
Current EventNotifier code applies EFD_SEMAPHORE, which is not what we want for Posix AIO (otherwise we could just stick with the pipe). I cannot match the reasoning for EFD_SEM in event_notifier.c with the man page, need to dig deeper. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux
