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    SubjectRe: [PATCH v5 17/21] libnvdimm: infrastructure for btt devices
    On Wed, Jun 10, 2015 at 02:46:16PM -0400, Matthew Wilcox wrote:
    > Don't screw up rw_page. The point of rw_page is to read or write a page
    > cache page. It can sleep, and it indicates success by using the page
    > flags. Don't try and scqueeze rw_bytes into it. If you want rw_bytes
    > to be a queue operation, that's one thing, but don't mess with rw_page.

    Oh, I forgot about the page manipulating nature. Yes, we'll need a different
    operation in this case.


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