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8eb8af4b3d
As per Linus's suggestion (https://lore.kernel.org/r/CAHk-=whefxRGyNGzCzG6BVeM=5vnvgb-XhSeFJVxJyAxAF8XRA@mail.gmail.com), use WARN_ON_ONCE instead of WARN_ON. This barely adds any extra overhead, and it makes it so that if any of these ever becomes reachable (they shouldn't, but that's the point), the logs can't be flooded. Link: https://lore.kernel.org/r/20230406181542.38894-1-ebiggers@kernel.org Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Eric Biggers <ebiggers@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.