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399bb81607
Clang's static analyzer pointed out that we can have a NULL pointer dereference if we ever attempt to split a vdev that has only 1 child. If that happens, we are left with zero children, but then try to access a non-existent child. Calling vdev_split() on a vdev with only 1 child should be impossible due to how the code is structured. If this ever happens, it would be best to stop execution immediately even in a production environment to allow for the best possible chance of recovery by an expert, so we use `VERIFY3U()` instead of `ASSERT3U()`. Unfortunately, while that defensive assertion will prevent execution from ever reaching the NULL pointer dereference, Clang's static analyzer does not realize that, so we add an `ASSERT()` to inform it of this. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Closes #14575 |
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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 12.2-RELEASE.