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ca16fa6b86
We may not need to pull in a btree node when walking backpointers - don't do so unnecessarily when using backpointer_get_key(). It'll still fall back to backpointer_get_node() in a few situations, including btree roots (where an iterator can't point at just the key), and races due to the interior update path not having deleted a backpointer to an old node yet. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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 reStructuredText 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.