c8184d714b
dmu_buf_will_clone() calls arc_buf_destroy() if there is an associated ARC buffer with the dbuf. However, this can only be done conditionally. If the previous dirty record's dr_data is pointed at db_dbf then destroying it can lead to NULL pointer deference when syncing out the previous dirty record. This updates dmu_buf_fill_clone() to only call arc_buf_destroy() if the previous dirty records dr_data is not pointing to db_buf. The block clone wil still set the dbuf's db_buf and db_data to NULL, but this will not cause any issues as any previous dirty record dr_data will still be pointing at the ARC buffer. Reviewed-by: Allan Jude <allan@klarasystems.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Brian Atkinson <batkinson@lanl.gov> Closes #16337 |
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README.md
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 12.4-RELEASE.