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* [ndctl PATCH 0/3] daxctl-device fixes
@ 2021-03-31  3:12 Vishal Verma
  2021-03-31  3:12 ` [ndctl PATCH 1/3] daxctl: fail reconfigure-device based on kernel onlining policy Vishal Verma
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Vishal Verma @ 2021-03-31  3:12 UTC (permalink / raw)
  To: linux-nvdimm; +Cc: Dave Hansen, Chunye Xu

This series contains a couple of fixes:

1/ Check the kernel policy for onlining blocks. If that is set to
'online', and if daxctl is passed --no-online or is onlining to
ZONE_MOVABLE (default), then fail the reconfigure command as we know
we can't satisfy that ask. (Prior to these patches, the reconfigure
would succeed, and we'd print a warning after the fact, which may
result in a surprising experience).

2/ For ndctl disable-namespace (and destroy-namespace), fail the
operation if the dax device is active as system-ram.

Additionally, augment the daxctl-devices.sh unit test to test for both
of these conditions and the expected (fixed) behavior in both cases.

Vishal Verma (3):
  daxctl: fail reconfigure-device based on kernel onlining policy
  libdaxctl: add an API to check if a device is active
  libndctl: check for active system-ram before disabling daxctl devices

 .../daxctl/daxctl-reconfigure-device.txt      | 12 ++++-
 daxctl/lib/libdaxctl-private.h                |  1 +
 daxctl/lib/libdaxctl.c                        | 31 +++++++++++
 ndctl/lib/libndctl.c                          | 25 ++++++++-
 daxctl/libdaxctl.h                            |  2 +
 daxctl/device.c                               | 10 ++++
 daxctl/lib/libdaxctl.sym                      |  6 +++
 test/daxctl-devices.sh                        | 52 +++++++++++++++++++
 8 files changed, 137 insertions(+), 2 deletions(-)

-- 
2.30.2
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end of thread, other threads:[~2021-03-31  3:12 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-31  3:12 [ndctl PATCH 0/3] daxctl-device fixes Vishal Verma
2021-03-31  3:12 ` [ndctl PATCH 1/3] daxctl: fail reconfigure-device based on kernel onlining policy Vishal Verma
2021-03-31  3:12 ` [ndctl PATCH 2/3] libdaxctl: add an API to check if a device is active Vishal Verma
2021-03-31  3:12 ` [ndctl PATCH 3/3] libndctl: check for active system-ram before disabling daxctl devices Vishal Verma

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