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Under Linux when rolling back a mounted filesystem negative dentries may not be dropped from the cache. This can result in an ENOENT being incorrectly returned on first access. Issuing a `df` before the unmount results in the negative dentries being invalidated and side steps the issue. This is solely a workaround for the test case on Linux and not correct behavior. The core issue of invalidating negative dentries needs to be handled with a kernel side change. This is being tracked as issue #6143. Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #12898 Issue #6143
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 12.2-RELEASE.