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Date:   Fri, 1 Oct 2021 05:24:49 +0100
From:   Christoph Hellwig <hch@infradead.org>
To:     Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Subject: Re: [RFC] Is lib/irq_poll still considered useful?
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On Thu, Sep 30, 2021 at 12:56:05PM +0200, Sebastian Andrzej Siewior wrote:
> Is there a reason for the remaining user of irq_poll to keep using it?

At least for RDMA there are workloads where the latency difference
matters.  That's why we added both the irq_poll and workqueue mode
to thew new CQ API a few years ago.