mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2026-05-23 19:04:45 +03:00
Fabian-Gruenbichler
8ff37c68d2
since 4.10, bio->bi_opf needs to be checked to determine all kinds of flush requests. this was the case prior to the commit referenced below, but the order of ifdefs was not the usual one (newest up top), which might have caused this to slip through. this fixes a regression when using zvols as Qemu block devices, but might have broken other use cases as well. the symptoms are that all sync writes from within a VM configured to use such a virtual block devices are ignored and treated as async writes by the host ZFS layer. this can be verified using fio in sync mode inside the VM, for example with fio \ --filename=/dev/sda --ioengine=libaio --loops=1 --size=10G \ --time_based --runtime=60 --group_reporting --stonewall --name=cc1 \ --description="CC1" --rw=write --bs=4k --direct=1 --iodepth=1 \ --numjobs=1 --sync=1 which shows an IOPS number way above what the physical device underneath supports, with "zpool iostat -r 1" on the hypervisor side showing no sync IO occuring during the benchmark. with the regression fixed, both fio inside the VM and the IO stats on the host show the expected numbers. Fixes:846b598519"config: remove HAVE_REQ_OP_* and HAVE_REQ_*" Signed-off-by: Fabian-Gruenbichler <f.gruenbichler@proxmox.com> Co-authored-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Closes #17131 (cherry picked from commit41823a0ede)
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.