rmacklem 59f8f5dfe1 zfs_vnops_os.c: Add support for the _PC_CLONE_BLKSIZE name
FreeBSD now has a pathconf name called _PC_CLONE_BLKSIZE
which is the block size supported for block cloning for
the file system.  Since ZFS's block size varies per file,
return the largest size likely to be used, or zero if block
cloning is not supported.

Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Rick Macklem <rmacklem@uoguelph.ca>
Closes #17645
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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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