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5261ced47f
The current DEFINE_WW_MUTEX() macro fails to properly set up the lockdep key of the ww_mutexes causing potential circular locking dependency splat. Though it is possible to add more macro magic to make it work, but the result is rather ugly. Since locktorture was the only user of DEFINE_WW_MUTEX() and the previous commit has just removed its use. It is easier to just remove the macro to force future users of ww_mutexes to use ww_mutex_init() for initialization. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20210318172814.4400-4-longman@redhat.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.