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02d70090e0
When the index feature is disabled, ofs->indexdir is NULL. When the index feature is enabled, ofs->indexdir has the same value as ofs->workdir and takes an extra reference. This makes the code harder to understand when it is not always clear that ofs->indexdir in one function is the same dentry as ofs->workdir in another function. Remove this redundancy, by referencing ofs->workdir directly in index helpers and by using the ovl_indexdir() accessor in generic code. Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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.