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Rob Norris
4a4f7b019f
The simplest thing first: add the FDT and log objects to the list of objects to be considered when checking for leaks. The rest is based on a conceptual change in all of this patch stack: a block on disk with a 'D' bit is not necessarily in the DDT at all (pruned), or in the DDT ZAPs (still on the log). As such, walking the DDT up front is difficult (for all the reasons that walking an unflushed log is difficult) and not really useful, since it's not a reflection of what's on disk anyway. Instead, we rework things here to be more like the BRT checks. When we see a dedup'd block, we look it up in the DDT, consume a refcount, and for the second-or-later instances, count them as duplicates. Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Co-authored-by: Allan Jude <allan@klarasystems.com> Co-authored-by: Don Brady <don.brady@klarasystems.com> Signed-off-by: Rob Norris <rob.norris@klarasystems.com> Sponsored-by: Klara, Inc. Sponsored-by: iXsystems, Inc. Closes #16277
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.