Re: [RFC PATCH] rcu: move SRCU grace period work to power efficient workqueue

From: Tejun Heo
Date: Wed Feb 12 2014 - 14:24:12 EST


Hello,

On Wed, Feb 12, 2014 at 11:02:41AM -0800, Paul E. McKenney wrote:
> +2. Use the /sys/devices/virtual/workqueue/*/cpumask sysfs files
> + to force the WQ_SYSFS workqueues to run on the specified set
> + of CPUs. The set of WQ_SYSFS workqueues can be displayed using
> + "ls sys/devices/virtual/workqueue".

One thing to be careful about is that once published, it becomes part
of userland visible interface. Maybe adding some words warning
against sprinkling WQ_SYSFS willy-nilly is a good idea?

Thanks.

--
tejun
--
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/