[PATCH 2/4] vmbus: remove hv_event_tasklet_disable/enable

From: Dexuan Cui With the recent introduction of per-channel tasklet, we need to update the way we handle the 3 concurrency issues: 1. hv_process_channel_removal -> percpu_channel_deq vs. vmbus_chan_sched -> list_for_each_entry(..., percpu_list); 2. vmbus_process_offer

[PATCH 2/4] vmbus: remove hv_event_tasklet_disable/enable

From: Dexuan Cui With the recent introduction of per-channel tasklet, we need to update the way we handle the 3 concurrency issues: 1. hv_process_channel_removal -> percpu_channel_deq vs. vmbus_chan_sched -> list_for_each_entry(..., percpu_list); 2. vmbus_process_offer ->