Re: [PATCH v5 3/3] CPU hotplug, smp: Flush any pending IPI callbacks before CPU offline

From: Paul E. McKenney
Date: Thu May 15 2014 - 15:37:14 EST


On Fri, May 16, 2014 at 12:56:11AM +0530, Srivatsa S. Bhat wrote:
> On 05/16/2014 12:49 AM, Tejun Heo wrote:
> > Hello,
> >
> > On Fri, May 16, 2014 at 12:44:13AM +0530, Srivatsa S. Bhat wrote:
> >> /*
> >> + * flush_smp_call_function_queue - Flush any pending smp-call-function
> >
> > Don't we need a blank line here?
>
> Hmm? That sentence continues on the next line, hence I didn't add any blank
> line there.

Tejun might be wanting this to be a docbook comment, in which case
it also needs "/**" at the beginning of the comment.

Thanx, Paul

> >> + * callbacks queued on this CPU (including those for which the source CPU's
> >> + * IPIs might not have been received on this CPU yet). This is invoked by a
> >> + * CPU about to go offline, to ensure that all pending IPI functions are run
> >> + * before it goes completely offline.
> >> + *
> >> + * Loop through the call_single_queue and run all the queued functions.
> >> + * Must be called with interrupts disabled.
> >> + */
> >
> > Other than that, looks good to me.
> >
> > Reviewed-by: Tejun Heo <tj@xxxxxxxxxx>
> >
>
> Thank you!
>
> Regards,
> Srivatsa S. Bhat
>

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