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If sufficient memory (<2K, realistically) is available, libzfs_init() can be significantly shorted by iterating over the correct sysfs directory before registrations, we can turn 168 stats into 15/18 syscalls (3 opens (6 if built in), 3 fstats, 6 getdentses, and 3 closes), a tenfoldish reduction; this is probably a bit faster, too. The list is always optional, and registration functions (and one-off users) can simply pass NULL, which will fall back to the previous mechanism Also, don't allocate in zfs_mod_supported_impl, and use use access() instead of stat(), since existence is really what we care about Also, fix pre-prop-checking compat in fallback for built-in ZFS Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #12089
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.