Messages in this thread | | | Date | Tue, 14 Feb 2012 10:57:43 +0100 | From | Paolo Bonzini <> | Subject | Re: Pe: [PATCH v5 1/3] virtio-scsi: first version |
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On 02/14/2012 02:11 AM, Michael S. Tsirkin wrote: > On Tue, Feb 14, 2012 at 11:49:55AM +1100, ronnie sahlberg wrote: >> By just exposing this device to the kernel, the kernel keeps sending, >> or if not the kernel maybe some other process trying to poll the >> status? >> >> every few seconds : >> PREVENT_ALLOW_MEDIUM_REMOVAL prevent removal >> PREVENT_ALLOW_MEDIUM_REMOVAL to immediatel change it back to allow >> removal again >> TEST_UNIT_READY >> >> >> After I run this >> mount /dev/sdd1 /mnt >> >> The kernel sends a single >> PREVENT_ALLOW_MEDIUM_REMOVAL to prevent removal >> then every few seconds a >> TEST_UNIT_READY
Sorry to interrupt you again guys, but: the discussion started with virtio-blk hotplug and now we're talking about SCSI commands? Sure somebody switched topic at some point :) and anyway this is irrelevant to what virtio-blk can/cannot do.
BTW, for virtio-scsi the spec provides a way to do hotplug and hotunplug without any polling, though it's not implemented yet in the driver.
Paolo
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