[ndctl,v3,0/8] Improvements for namespace creation/interrogation

Message

Dan Williams Aug. 2, 2019, 11:54 p.m. UTC

Changes since v2 [1]:
- Drop the patches that have already been applied to the 'pending' branch
- Rebase the dimm extent series and the small 'create-namespace' fixlets
- Move the new libndctl apis to the next library symbol version (Vishal)
- Defer the following to a post ndctl-v66 release:

      ndctl/namespace: Add read-infoblock command
      ndctl/test: Update dax-dev to handle multiple e820 ranges
      ndctl/test: Make dax.sh more robust vs small namespaces
      ndctl/namespace: Always zero info-blocks
      ndctl/namespace: Disable autorecovery of create-namespace failures
      ndctl/test: Checkout device-mapper + dax operation
      ndctl/test: Exercise sub-section sized namespace creation/deletion
      ndctl/namespace: Kill off the legacy mode names
      ndctl/namespace: Introduce mode-to-name and name-to-mode helpers
      ndctl/namespace: Validate namespace size within validate_namespace_options()
      ndctl/namespace: Clarify 16M minimum size requirement

[1]: https://lists.01.org/pipermail/linux-nvdimm/2019-July/022766.html

---

This trimmed version includes the extent support for label operations
which significantly speeds up common label operations like
'init-labels'. It also fixes up some surprising results from
'create-namespace' where it would fail even though available capacity is
present. Lastly it suppresses a new warning found in Fedora Rawhide
builds that has moved to gcc 9.1.1.

---

Dan Williams (8):
      ndctl/build: Suppress -Waddress-of-packed-member
      ndctl/dimm: Support small label reads/writes
      ndctl/dimm: Minimize data-transfer for init-labels
      ndctl/dimm: Add offset and size options to {read,write,zero}-labels
      ndctl/dimm: Limit read-labels with --index option
      ndctl/namespace: Minimize label data transfer for autolabel
      ndctl/namespace: Continue region search on 'missing seed' event
      ndctl/namespace: Report ENOSPC when regions are full


 Documentation/ndctl/labels-options.txt    |    9 ++
 Documentation/ndctl/ndctl-read-labels.txt |    7 ++
 configure.ac                              |    1 
 ndctl/dimm.c                              |   92 +++++++++++++++++--------
 ndctl/lib/dimm.c                          |   85 +++++++++++++++++++++--
 ndctl/lib/libndctl.c                      |  108 +++++++++++++++++++++++++----
 ndctl/lib/libndctl.sym                    |    9 ++
 ndctl/lib/private.h                       |    4 -
 ndctl/libndctl.h                          |    9 ++
 ndctl/namespace.c                         |   13 +++
 util/util.h                               |    4 +
 11 files changed, 286 insertions(+), 55 deletions(-)