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Commit 06210b42 authored by Vitaly Kuznetsov's avatar Vitaly Kuznetsov Committed by Greg Kroah-Hartman
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Drivers: hv: vmbus: remove hv_synic_free_cpu() call from hv_synic_cleanup() 



We already have hv_synic_free() which frees all per-cpu pages for all
CPUs, let's remove the hv_synic_free_cpu() call from hv_synic_cleanup()
so it will be possible to do separate cleanup (writing to MSRs) and final
freeing. This is going to be used to assist kexec.

Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent eead035a

drivers/hv/hv.c

+0 −2
Original line number Diff line number Diff line
@@ -530,6 +530,4 @@ void hv_synic_cleanup(void *arg) 
	rdmsrl(HV_X64_MSR_SCONTROL, sctrl.as_uint64);

	sctrl.enable = 0;

	wrmsrl(HV_X64_MSR_SCONTROL, sctrl.as_uint64);



	hv_synic_free_cpu(cpu);

}

drivers/hv/vmbus_drv.c

+1 −0
Original line number Diff line number Diff line
@@ -1120,6 +1120,7 @@ static void __exit vmbus_exit(void) 
		tasklet_kill(hv_context.event_dpc[cpu]);

		smp_call_function_single(cpu, hv_synic_cleanup, NULL, 1);

	}

	hv_synic_free();

	acpi_bus_unregister_driver(&vmbus_acpi_driver);

	hv_cpu_hotplug_quirk(false);

}