Paul Durrant c534374ecf
xenbus: move xenbus_dev_shutdown() into frontend code... ...
...and make it static
xenbus_dev_shutdown() is seemingly intended to cause clean shutdown of PV
frontends when a guest is rebooted. Indeed the function waits for a
conpletion which is only set by a call to xenbus_frontend_closed().
This patch removes the shutdown() method from backends and moves
xenbus_dev_shutdown() from xenbus_probe.c into xenbus_probe_frontend.c,
renaming it appropriately and making it static.
NOTE: In the case where the backend is running in a driver domain, the
toolstack should have already terminated any frontends that may be
using it (since Xen does not support re-startable PV driver domains)
so xenbus_dev_shutdown() should never be called.
Signed-off-by: Paul Durrant <pdurrant@amazon.com >
Reviewed-by: Juergen Gross <jgross@suse.com >
Signed-off-by: Juergen Gross <jgross@suse.com >
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c534374ecf