Re: [libvirt] [PATCH v2] qemu_hotplug: Rework media changing process

https://bugzilla.redhat.com/show_bug.cgi?id=892289 It seems like with new udev within guest OS, the tray is locked, so we need to: - 'eject' - wait for tray to open - 'change' Moreover, even when doing bare 'eject', we should check for 'tray_open' as guest may have locked the tray. However, the waiting phase shouldn't be unbounded, so I've chosen 10 retries maximum, each per 500ms. This should give enough time for guest to eject a media and open the tray. --- diff to v1: - listen to TRAY event instead of active polling