On Tue, Sep 25, 2012 at 02:18:20AM +0530, Srivatsa S. Bhat wrote: > > From: Srivatsa S. Bhat <srivatsa.b...@linux.vnet.ibm.com> > > The CPU hotplug callback related to writeback calls writeback_set_ratelimit() > during every state change in the hotplug sequence. This is unnecessary > since num_online_cpus() changes only once during the entire hotplug operation. > > So invoke the function only once per hotplug, thereby avoiding the > unnecessary repetition of those costly calculations. > > Signed-off-by: Srivatsa S. Bhat <srivatsa.b...@linux.vnet.ibm.com> > ---
Looks good to me. I'll include it in the writeback tree. Thanks, Fengguang -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
