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4808641e71
Linux kernel shrinker in the context of null/root memcg does not scan dentry and inode caches added by a task running in non-root memcg. For ZFS this means that dnode cache routinely overflows, evicting valuable meta/data and putting additional memory pressure on the system. This patch restores zfs_prune_aliases as fallback when the kernel shrinker does nothing, enabling zfs to actually free dnodes. Moreover, it (indirectly) calls arc_evict when dnode_size > dnode_limit. Reviewed-by: Rob Norris <robn@despairlabs.com> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Gionatan Danti <g.danti@assyoma.it> Closes #17487 Closes #17542 |
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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.
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.