Paul Dagnelie 69ee01aa4b Fix bug caused by rounding in vdev_raidz_asize_to_psize
When an allocation is happening on a raidz vdev, the number of sectors
allocated is rounded up to a multiple of nparity + 1. If this results in
the allocation spilling into an extra row, then the corresponding call
to vdev_raidz_asize_to_psize will incorrectly assume that parity sectors
were allocated for that spilled row, even though no data is stored
there.

If we determine that happened, we need to subtract out those extra
sectors before performing the rest of the capacity calculation.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Rob Norris <rob.norris@klarasystems.com>
Reviewed-by: Allan Jude <allan@klarasystems.com>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Closes #17490
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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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