When rq_affinity is 1, it will default to servicing the softirq on the same CPU that has serviced the interrupt. By setting it to 2, completions are processed by the CPU core that submitted the I/O. Bug: 311655524 Signed-off-by: Qais Yousef <qyousef@google.com> Change-Id: I21421f97f069083793fe2e2fa51739dac12eca1d