Messages in this thread | | | Date | Fri, 26 Aug 2022 20:35:17 +0100 | From | Al Viro <> | Subject | Re: [PATCH v3 1/1] nvmet-tcp: Don't kmap() pages which can't come from HIGHMEM |
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On Fri, Aug 26, 2022 at 12:35:09PM -0600, Keith Busch wrote:
> > Can you please provide further information or links to documentation? > > This kvec/bvec talk is a digression from your original goal: reduce unnecessary > kmap() usage. If anyone wants to take on the bvec optimization in this code > path, then by all means lets do it in a separate patch.
Oh? And why is a switch to iov_iter_bvec() *not* a reduction of kmap() usage? ITER_BVEC methods use kmap_local() for data transfers, TYVM...
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