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linux-sg2042
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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: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vitaly Kuznetsov 2015-08-01 16:08:05 -07:00 committed by Greg Kroah-Hartman
parent eead035a35
commit 06210b42f3
2 changed files with 1 additions and 2 deletions
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2
drivers/hv/hv.c
View File

@ -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);
}

1
drivers/hv/vmbus_drv.c
View File

@ -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);
}