Re: [PATCH RFC] blk-mq: Don't IPI requests on PREEMPT_RT

[Peter Zijlstra]

On Tue, Oct 27, 2020 at 05:23:09PM +0000, Christoph Hellwig wrote:
> Ok.  I was hoping we could hide this in core code somehow, especially
> a peterz didn't like the use of smp_call_function_single_async in the
> blk-mq completion code very much.

It's smp_call_function_single_async() in general that I don't much like.
But Linus seemed unconvinced, so we'll keep it for a while I suppose.