Umer Saleem 1c6b0302ef Fix user properties output for zpool list
In zpool_get_user_prop, when called from zpool_expand_proplist and
collect_pool, we often have zpool_props present in zpool_handle_t equal
to NULL. This mostly happens when only one user property is requested
using zpool list -o <user_property>. Checking for this case and
correctly initializing the zpool_props field in zpool_handle_t fixes
this issue.

Interestingly, this issue does not occur if we query any other property
like name or guid along with a user property with -o flag because while
accessing properties like guid, zpool_prop_get_int is called which
checks for this case specifically and calls zpool_get_all_props.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Umer Saleem <usaleem@ixsystems.com>
Closes #16734
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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.

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Official Resources

Installation

Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.

Contribute & Develop

We have a separate document with contribution guidelines.

We have a Code of Conduct.

Release

OpenZFS is released under a CDDL license. For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported Linux kernel versions.
  • Supported FreeBSD versions are any supported branches and releases starting from 13.0-RELEASE.
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