Go to file
Brian Behlendorf 0fe10361ba Allow vmem_alloc backed multilists
Systems with a large number of CPU cores (192+) may trigger the large
allocation warning in multilist_create() on Linux.  Silence the warning
by converting the allocation to vmem_alloc().

On Linux this results in a call to kvalloc() which will alloc vmem
for large allocations and kmem for small allocations.

On FreeBSD both vmem_alloc and kmem_alloc internally use the same
allocator so there is no functional change.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Rob Norris <robn@despairlabs.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #17616
2025-08-12 17:24:30 -07:00
.github FreeBSD 15.0 is now "PRERELEASE" 2025-08-12 17:24:22 -07:00
cmd zed: prettify slack notification message 2025-08-12 17:24:15 -07:00
config config: Avoid void main() in toolchain-simd.m4 2025-08-12 17:23:57 -07:00
contrib Introduce zfs rewrite subcommand (#17246) 2025-08-07 12:34:28 -04:00
etc SPDX: license tags: MIT 2025-04-16 09:59:44 -07:00
include SIMD: Don't require definition of HAVE_XSAVE 2025-08-12 17:23:51 -07:00
lib Validate mountpoint on path-based unmount using statx 2025-08-05 12:27:25 -04:00
man Introduce zfs rewrite subcommand (#17246) 2025-08-07 12:34:28 -04:00
module Allow vmem_alloc backed multilists 2025-08-12 17:24:30 -07:00
rpm rpm: don't list /sbin/zgenhostid twice in %files 2025-08-12 17:24:08 -07:00
scripts Linux build: handle CONFIG_OBJTOOL_WERROR=y 2025-08-07 13:10:33 -04:00
tests ZTS: mmap_ftruncate test to confirm async writeback behaviour 2025-08-12 17:23:35 -07:00
udev Update 69-vdev.rules.in 2025-05-28 16:00:28 -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 2025-05-28 16:00:28 -07:00
AUTHORS AUTHORS/mailmap: update with new contributors 2025-05-28 16:00:28 -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 2025-08-07 13:10:33 -04:00
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 2025-04-16 09:59:45 -07:00
META Linux 6.16 compat: META 2025-08-12 17:24:19 -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 2025-02-25 22:27:10 +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

img

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.

codecov coverity

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.