linux-kernel - [PATCH 0/2] libnvdimm: dynamic label support

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Message-ID: <147689338812.9946.11071407155879544366.stgit@dwillia2-desk3.amr.corp.intel.com>
Date:   Wed, 19 Oct 2016 09:09:48 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     linux-nvdimm@...ts.01.org
Cc:     Haozhong Zhang <haozhong.zhang@...el.com>,
        Xiao Guangrong <guangrong.xiao@...ux.intel.com>,
        qemu-devel@...gnu.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] libnvdimm: dynamic label support

Allow label support to be dynamically enabled for PMEM regions that are
not aliased with BLK.  By default these PMEM regions are surfaced as a
single / label-less namespace.  However, if the backing dimm(s) for the
region support labels then PMEM sub-division support can be enabled by

  1/ disable the pmem region
  2/ write a valid namespace index block to the label area
  3/ re-enable the region and create a namespace

See the man page for the "ndctl init-labels" command.

---

Dan Williams (2):
      libnvdimm: allow a platform to force enable label support
      tools/testing/nvdimm: dynamic label support


 drivers/nvdimm/dimm.c            |    2 ++
 drivers/nvdimm/dimm_devs.c       |    7 +++++++
 drivers/nvdimm/nd.h              |    1 +
 tools/testing/nvdimm/test/nfit.c |   30 +++++++++++++++++++++++-------
 4 files changed, 33 insertions(+), 7 deletions(-)