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SubjectRe: [PATCH v4 1/3] RISC-V: Do not invoke SBI call if cpumask is empty
On Thu, Aug 22, 2019 at 12:51:49AM -0700, Atish Patra wrote:
> SBI calls are expensive. If cpumask is empty, there is no need to
> trap via SBI as no remote tlb flushing is required.
>
> Signed-off-by: Atish Patra <atish.patra@wdc.com>

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>

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