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From: Jeff Moyer <jmoyer@redhat.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-nvdimm@lists.01.org,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
	linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v2 0/4] libnvdimm: Cross-arch compatible namespace alignment
Date: Fri, 14 Feb 2020 16:03:47 -0500	[thread overview]
Message-ID: <x49blq0dgp8.fsf@segfault.boston.devel.redhat.com> (raw)
In-Reply-To: <158155489850.3343782.2687127373754434980.stgit@dwillia2-desk3.amr.corp.intel.com> (Dan Williams's message of "Wed, 12 Feb 2020 16:48:18 -0800")

Dan Williams <dan.j.williams@intel.com> 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!

-Jeff
_______________________________________________
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To unsubscribe send an email to linux-nvdimm-leave@lists.01.org

WARNING: multiple messages have this Message-ID (diff)
From: Jeff Moyer <jmoyer@redhat.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-nvdimm@lists.01.org, Oliver O'Halloran <oohall@gmail.com>,
	Vishal Verma <vishal.l.verma@intel.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
	linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v2 0/4] libnvdimm: Cross-arch compatible namespace alignment
Date: Fri, 14 Feb 2020 16:03:47 -0500	[thread overview]
Message-ID: <x49blq0dgp8.fsf@segfault.boston.devel.redhat.com> (raw)
In-Reply-To: <158155489850.3343782.2687127373754434980.stgit@dwillia2-desk3.amr.corp.intel.com> (Dan Williams's message of "Wed, 12 Feb 2020 16:48:18 -0800")

Dan Williams <dan.j.williams@intel.com> 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!

-Jeff


WARNING: multiple messages have this Message-ID (diff)
From: Jeff Moyer <jmoyer@redhat.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-nvdimm@lists.01.org,
	Vishal Verma <vishal.l.verma@intel.com>,
	linux-kernel@vger.kernel.org,
	Oliver O'Halloran <oohall@gmail.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
	Paul Mackerras <paulus@samba.org>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v2 0/4] libnvdimm: Cross-arch compatible namespace alignment
Date: Fri, 14 Feb 2020 16:03:47 -0500	[thread overview]
Message-ID: <x49blq0dgp8.fsf@segfault.boston.devel.redhat.com> (raw)
In-Reply-To: <158155489850.3343782.2687127373754434980.stgit@dwillia2-desk3.amr.corp.intel.com> (Dan Williams's message of "Wed, 12 Feb 2020 16:48:18 -0800")

Dan Williams <dan.j.williams@intel.com> 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!

-Jeff


  parent reply	other threads:[~2020-02-14 21:03 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-13  0:48 [PATCH v2 0/4] libnvdimm: Cross-arch compatible namespace alignment Dan Williams
2020-02-13  0:48 ` Dan Williams
2020-02-13  0:48 ` Dan Williams
2020-02-13  0:48 ` [PATCH v2 1/4] mm/memremap_pages: Introduce memremap_compat_align() Dan Williams
2020-02-13  0:48   ` Dan Williams
2020-02-13  0:48   ` Dan Williams
2020-02-13 16:57   ` Jeff Moyer
2020-02-13 16:57     ` Jeff Moyer
2020-02-13 16:57     ` Jeff Moyer
2020-02-13 18:26     ` Dan Williams
2020-02-13 18:26       ` Dan Williams
2020-02-13 18:26       ` Dan Williams
2020-02-14  3:26       ` Aneesh Kumar K.V
2020-02-14  3:26         ` Aneesh Kumar K.V
2020-02-14  3:26         ` Aneesh Kumar K.V
2020-02-14 20:59       ` Jeff Moyer
2020-02-14 20:59         ` Jeff Moyer
2020-02-14 20:59         ` Jeff Moyer
2020-02-14 23:05         ` Dan Williams
2020-02-14 23:05           ` Dan Williams
2020-02-14 23:05           ` Dan Williams
2020-02-13  0:48 ` [PATCH v2 2/4] libnvdimm/namespace: Enforce memremap_compat_align() Dan Williams
2020-02-13  0:48   ` Dan Williams
2020-02-13  0:48   ` Dan Williams
2020-02-13 19:16   ` Jeff Moyer
2020-02-13 19:16     ` Jeff Moyer
2020-02-13 19:16     ` Jeff Moyer
2020-02-13 21:55   ` Jeff Moyer
2020-02-13 21:55     ` Jeff Moyer
2020-02-13 21:55     ` Jeff Moyer
2020-02-13 22:43     ` Dan Williams
2020-02-13 22:43       ` Dan Williams
2020-02-13 22:43       ` Dan Williams
2020-02-14 16:44       ` Jeff Moyer
2020-02-14 16:44         ` Jeff Moyer
2020-02-14 16:44         ` Jeff Moyer
2020-02-14 16:55         ` Aneesh Kumar K.V
2020-02-14 16:55           ` Aneesh Kumar K.V
2020-02-14 16:55           ` Aneesh Kumar K.V
2020-02-13  0:48 ` [PATCH v2 3/4] libnvdimm/region: Introduce NDD_LABELING Dan Williams
2020-02-13  0:48   ` Dan Williams
2020-02-13  0:48   ` Dan Williams
2020-02-13 19:12   ` Jeff Moyer
2020-02-13 19:12     ` Jeff Moyer
2020-02-13 19:12     ` Jeff Moyer
2020-02-13  0:48 ` [PATCH v2 4/4] libnvdimm/region: Introduce an 'align' attribute Dan Williams
2020-02-13  0:48   ` Dan Williams
2020-02-13  0:48   ` Dan Williams
2020-02-14 20:19   ` Jeff Moyer
2020-02-14 20:19     ` Jeff Moyer
2020-02-14 20:19     ` Jeff Moyer
2020-02-14 21:03 ` Jeff Moyer [this message]
2020-02-14 21:03   ` [PATCH v2 0/4] libnvdimm: Cross-arch compatible namespace alignment Jeff Moyer
2020-02-14 21:03   ` Jeff Moyer

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