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7ea899be04
zfs_file_fsync() and zfs_file_deallocate() are both blocking ops, so the zio_taskq thread is active and blocked both while waiting for the IO call and then while calling zio_execute() for the next stage. This is a particular issue for FLUSH, as the z_flush_iss queue typically only has one thread; multiple flushes arriving at once can cause long delays if the underlying fsync() response is particularly slow. To fix this, we dispatch both FLUSH and TRIM to the z_vdev_file taskq, just as we do for reads and writes. Further, we return all results through zio_interrupt(), so neither the issue nor the file taskqs are blocked. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Rob Norris <rob.norris@klarasystems.com> Closes #17064 |
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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.