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9dd5fe1095
In Linux, block devices currently lack support for `copy_file_range` API because the kernel does not provide the necessary functionality. However, there is an ongoing upstream effort to address this limitation: https://patchwork.kernel.org/project/dm-devel/cover/20240520102033.9361-1-nj.shetty@samsung.com/. We have adopted this upstream kernel patch into the TrueNAS kernel and made some additional modifications to enable block cloning specifically for the zvol block device. This patch implements the platform- independent portions of these changes for inclusion in OpenZFS. This patch does not introduce any new functionality directly into OpenZFS. The `TX_CLONE_RANGE` replay capability is only relevant when zvols are migrated to non-TrueNAS systems that support Clone Range replay in the ZIL. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Ameer Hamza <ahamza@ixsystems.com> Closes #16901 |
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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.
Official Resources
- Documentation - for using and developing this repo
- ZoL Site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
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
METAfile contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 13.0-RELEASE.