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ed335278bd
Don't assume the current root to be valid, just check it and remove the WARN(). Also move the code to check if the root is valid into FNAME(invlpg) to simplify the code. Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com> Link: https://lore.kernel.org/r/20230216235321.735214-2-jiangshanlai@gmail.com Signed-off-by: Sean Christopherson <seanjc@google.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.