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885a6f4729
Currently, rcutorture_one_extend() reads the CPU ID before making any change to the type of RCU reader. This can be confusing because the properties of the code from which the CPU ID is read are not that of the reader segment that this same CPU ID is listed with. This commit therefore causes rcutorture_one_extend() to read the CPU ID just after the new protections have been added, but before the old protections have been removed. With this change in place, all of the protections of a given reader segment apply from the reading of one CPU ID to the reading of the next. This change therefore also allows a single read of the CPU ID to work for both the old and the new reader segment. And this dual use of a single read of the CPU ID avoids inflicting any additional to heisenbugs. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com> |
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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 reStructuredText 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.