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Date:   Fri, 14 Feb 2020 16:03:47 -0500
From:   Jeff Moyer <>
To:     Dan Williams <>
Cc:, Oliver O'Halloran <>,
        Vishal Verma <>,
        Benjamin Herrenschmidt <>,
        Paul Mackerras <>,
        "Aneesh Kumar K.V" <>,,
Subject: Re: [PATCH v2 0/4] libnvdimm: Cross-arch compatible namespace alignment

Dan Williams <> writes:

> ---
> Explicit review requests, but any other feedback is of course
> appreciated:
> Patch1 needs an ack from ppc arch maintainers, and I'd like a tested-by
> from Aneesh that this still works to solve the ppc issue. Jeff, does
> this look good to you?

OK, I've reviewed everything.  Testing looks good with the change I
mentioned (memremap_compat_align returning PAGE_SIZE).  I made sure a
4k-aligned namespace created under an unpatched kernel would be
accessible under a patched kernel.  I also made sure that manually
setting align would allow for creating of poorly aligned namespaces, and
that those namespaces were then accessible on the unpatched kernel.

Thanks, Dan!


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