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Alexander Motin 60f714e6e2 Implement physical rewrites
Based on previous commit this implements `zfs rewrite -P` flag,
making ZFS to keep blocks logical birth times while rewriting
files.  It should exclude the rewritten blocks from incremental
sends, snapshot diffs, etc.  Snapshots space usage same time will
reflect the additional space usage from newly allocated blocks.

Since this begins to use new "rewrite" flag in the block pointers,
this commit introduces a new read-compatible per-dataset feature
physical_rewrite.  It must be enabled for the command to not fail,
it is activated on first use and deactivated on deletion of the
last affected dataset.

Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:  Alexander Motin <alexander.motin@TrueNAS.com>
Closes #17565
2025-08-06 10:36:56 -07:00
.github CI: match and trim out internal timestamp for test prefix 2025-08-06 09:45:17 -07:00
cmd Implement physical rewrites 2025-08-06 10:36:56 -07:00
config Define sops->free_inode() to prevent use-after-free during lookup 2025-07-18 08:45:13 -07:00
contrib Add templated zfs-mount@.service 2025-07-03 14:24:07 -07:00
etc Add templated zfs-mount@.service 2025-07-03 14:24:07 -07:00
include Implement physical rewrites 2025-08-06 10:36:56 -07:00
lib Implement physical rewrites 2025-08-06 10:36:56 -07:00
man Implement physical rewrites 2025-08-06 10:36:56 -07:00
module Implement physical rewrites 2025-08-06 10:36:56 -07:00
rpm Add templated zfs-mount@.service 2025-07-03 14:24:07 -07:00
scripts mod.h: make consistent across all three platforms 2025-07-15 15:46:14 -07:00
tests Implement physical rewrites 2025-08-06 10:36:56 -07:00
udev Update 69-vdev.rules.in 2025-05-21 10:05:11 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Packaging: Auto-generate changelog during configure (#15528) 2023-11-16 08:58:47 -08:00
.gitmodules .gitmodules: link to openzfs github repository 2021-04-12 09:37:23 -07:00
.mailmap AUTHORS/mailmap: update with new contributors 2025-05-13 09:24:03 -07:00
AUTHORS AUTHORS/mailmap: update with new contributors 2025-05-13 09:24:03 -07:00
autogen.sh Ubuntu 22.04 integration: ShellCheck 2022-11-18 11:24:48 -08:00
CODE_OF_CONDUCT.md Documentation corrections 2022-12-22 11:34:28 -08:00
configure.ac Linux build: handle CONFIG_OBJTOOL_WERROR=y 2025-06-16 08:12:09 -07:00
copy-builtin copy-builtin: add hooks with sed/>> 2022-05-10 10:17:43 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am spdxcheck: program to check SPDX license tags 2025-03-13 17:57:51 -07:00
META Linux 6.15 compat: META 2025-05-28 16:28:02 -07:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md FreeBSD: remove support for FreeBSD < 13.0-RELEASE (#16372) 2024-08-05 16:56:45 -07:00
RELEASES.md Update RELEASES.md LTS release to 2.2 2025-01-17 11:04:36 -05:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

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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.