Re: [PATCH 5/8] nohz: Restart the tick from irq exit

From: Rik van Riel
Date: Thu Jun 11 2015 - 16:48:08 EST


On 06/11/2015 01:36 PM, Frederic Weisbecker wrote:
> Restart the tick when necessary from the irq exit path. It makes nohz
> full more flexible and allow it to piggyback the tick restart on the
> scheduler IPI in the future instead of sending a dedicated IPI that
> often doubles the scheduler IPI on task wakeup. This will require
> careful review of resched_curr() callers.
>
> Cc: Christoph Lameter <cl@xxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc; John Stultz <john.stultz@xxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: Preeti U Murthy <preeti@xxxxxxxxxxxxxxxxxx>
> Cc: Rik van Riel <riel@xxxxxxxxxx>
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>

Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/