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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