Re: [PATCH v2 15/17] libnvdimm: Set numa_node to NVDIMM devices

From	Dan Williams <dan.j.williams@intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2 15/17] libnvdimm: Set numa_node to NVDIMM devices
Date	2015-06-26 00:40 +0200
Message-ID	<pFnYm-5mM-19@gated-at.bofh.it> (permalink)
References	(3 earlier) <pFke6-8sf-17@gated-at.bofh.it> <pFn2i-42w-31@gated-at.bofh.it> <pFnlD-4p2-7@gated-at.bofh.it> <pFnvk-4Pp-17@gated-at.bofh.it> <pFnEZ-50r-3@gated-at.bofh.it>
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On Thu, Jun 25, 2015 at 3:11 PM, Toshi Kani <toshi.kani@hp.com> wrote:
> On Thu, 2015-06-25 at 15:00 -0700, Dan Williams wrote:
> Yes, I see no problem with bound BTTs and their device files.  So, how
> do we bind BTT with this new version?
>

# cd /sys/bus/nd/devices
# uuidgen > btt6/uuid
# echo 4096 > btt6/sector_size
# echo namespace6.0 > btt6/namespace
# echo namespace6.0 > ../drivers/nd_pmem/unbind
# echo btt6 > ../drivers/nd_pmem/bind

After reboot, when the system sees namespace6.0 again it will notice
the btt instance and attach bttX instead.  The net effect is that now
you'll only ever have /dev/pmem6 or /dev/pmem6s, never both at the
same time that was a side effect of the stacking approach.

I'll post the patch that updates libndctl and the unit tests shortly
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Thread

[PATCH v2 15/17] libnvdimm: Set numa_node to NVDIMM devices Dan Williams <dan.j.williams@intel.com> - 2015-06-25 11:50 +0200
  Re: [PATCH v2 15/17] libnvdimm: Set numa_node to NVDIMM devices Dan Williams <dan.j.williams@intel.com> - 2015-06-25 23:40 +0200
    Re: [PATCH v2 15/17] libnvdimm: Set numa_node to NVDIMM devices Toshi Kani <toshi.kani@hp.com> - 2015-06-26 00:00 +0200
      Re: [PATCH v2 15/17] libnvdimm: Set numa_node to NVDIMM devices Dan Williams <dan.j.williams@intel.com> - 2015-06-26 00:10 +0200
        Re: [PATCH v2 15/17] libnvdimm: Set numa_node to NVDIMM devices Toshi Kani <toshi.kani@hp.com> - 2015-06-26 00:20 +0200
          Re: [PATCH v2 15/17] libnvdimm: Set numa_node to NVDIMM devices Dan Williams <dan.j.williams@intel.com> - 2015-06-26 00:40 +0200
            Re: [PATCH v2 15/17] libnvdimm: Set numa_node to NVDIMM devices Toshi Kani <toshi.kani@hp.com> - 2015-06-26 01:00 +0200
              Re: [PATCH v2 15/17] libnvdimm: Set numa_node to NVDIMM devices Toshi Kani <toshi.kani@hp.com> - 2015-06-26 03:30 +0200

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