How to remove a tasklet_struct from tasklet_vec?

[jingguo yao]

tasklet_kill clears TASKLET_STATE_SCHED bit. tasklet_action reconstructs
the tasklet_vec with TASKLET_STATE_SCHED bit cleared.  But it does not
remove any tasklet_struct from tasklet_vec. tasklet_kill_immediate can
remove a tasklet_struct form tasklet_vec. But it can only run when CPU
state is CPU_DEAD. Is there any other way to remove tasklet_struct from
tasklet_vec?

-- 
Jingguo
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