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f6ac18fafc
Clarify and tighten try_invoke_on_locked_down_task(). Basically the function calls @func under task_rq_lock(), except it avoids taking rq->lock when possible. This makes calling @func unconditional (the function will get renamed in a later patch to remove the try). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Vasily Gorbik <gor@linux.ibm.com> Tested-by: Vasily Gorbik <gor@linux.ibm.com> # on s390 Link: https://lkml.kernel.org/r/20210929152428.589323576@infradead.org
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.