Messages in this thread | | | From | Logan Gunthorpe <> | Date | Mon, 9 Nov 2020 09:47:11 -0700 | Subject | Re: [RFC PATCH 04/15] lib/scatterlist: Add flag for indicating P2PDMA segments in an SGL |
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On 2020-11-09 2:12 a.m., Christoph Hellwig wrote: > On Fri, Nov 06, 2020 at 10:00:25AM -0700, Logan Gunthorpe wrote: >> We make use of the top bit of the dma_length to indicate a P2PDMA >> segment. > > I don't think "we" can. There is nothing limiting the size of a SGL > segment.
Yes, I expected this would be the unacceptable part. Any alternative ideas?
Logan
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