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Rob Norris
3b5c3f52d2
As zios are reexecuted after resume from suspension, their ready and wait states need to be propagated to wait counts on all their parents. It's possible for those parents to have active children passing through READY or DONE, which then end up in zio_notify_parent(), take their parent's lock, and decrement the wait count. Without also taking a lock here, it's possible for an increment race to occur, which leads to either there being no references left (tripping the assert in zio_notify_parent()), or a parent waiting forever for a nonexistent child to complete. To protect against this, we simply take the appropriate zio locks in zio_reexecute() before updating the wait counts. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Reviewed-by: Allan Jude <allan@klarasystems.com> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Rob Norris <rob.norris@klarasystems.com> Closes #17016
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.