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@xxxxxxxxxx> --- drivers/hv/hv.c | 2 -- drivers/hv/vmbus_drv.c | 1 + 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index d3943bc..5b87042 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -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); } diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 2b56260..612fc0a 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -1117,6 +1117,7 @@ static void __exit vmbus_exit(void) hv_cleanup(); for_each_online_cpu(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); } -- 1.9.3 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
