Roland> Hmm... it seems simpler to have userspace allocate the
Roland> memory with mmap() before the resize_cq call, and then
Roland> pass that new buffer into the resize_cq call. That way
Roland> you don't have a window where the kernel is putting
Roland> completions into a buffer that userspace doesn't know
Roland> about.
Ralph> Perhaps. But this way, the code is the same for kernel and
Ralph> user allocated queues.
I guess there is some benefit there.
Ralph> Or the new kernel driver needs to handle the old way and
Ralph> the new way.
Yeah.
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