On Mon, Apr 14, 2014 at 09:53:51PM +0530, Viresh Kumar wrote:
> __tick_nohz_task_switch() was called only from tick_nohz_task_switch() and 
> there
> is nothing much in tick_nohz_task_switch() as well. IOW, we don't need
> unnecessary wrapper over __tick_nohz_task_switch() to be there. Merge all code
> from __tick_nohz_task_switch() into tick_nohz_task_switch() and move it to
> tick-sched.c.
> 
> This also moves check for tick_nohz_tick_stopped() outside of irq_save()
> context.

No, the wrapper is there on purpose in order to optimize the full dynticks off 
case in
the context switch path with the jump label'ed check on 
tick_nohz_full_enabled().
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