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712b093816
commitd7c9e1be28upstream. I don't know how this isn't caught when we build this in the kernel, but while syncing extent-io-tree.c into btrfs-progs I got an error because parent could potentially be uninitialized when we link in a new node, specifically when the extent_io_tree is empty. This means we could have garbage in the parent color. I don't know what the ramifications are of that, but it's probably not great, so fix this by initializing parent to NULL. I spot checked all of our other usages in btrfs and we appear to be doing the correct thing everywhere else. Fixes:c7e118cf98("btrfs: open code rbtree search in insert_state") CC: stable@vger.kernel.org # 6.0+ Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.