Lai Jiangshan b3e627d3d5 rcu: Make PREEMPT_RCU be a modifier to TREE_RCU
Currently PREEMPT_RCU and TREE_RCU are mutually exclusive Kconfig
options.  But PREEMPT_RCU actually specifies a kind of TREE_RCU,
namely a preemptible TREE_RCU. This commit therefore makes PREEMPT_RCU
be a modifer to the TREE_RCU Kconfig option.  This has the benefit of
simplifying several of the #if expressions that formerly needed to
check both, but now need only check one or the other.

Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Lai Jiangshan <jiangshanlai@gmail.com>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2019-12-09 12:37:51 -08:00
2019-12-06 16:12:39 -08:00
2019-12-06 13:36:31 -08:00
2019-12-04 19:44:13 -08:00
2019-11-15 14:38:27 +01:00
2019-12-07 11:00:19 -08:00
2019-12-03 12:51:35 -08:00
2019-12-06 13:06:14 -08:00
2019-12-05 13:18:54 -08:00
2019-10-29 04:43:29 -06:00
2019-12-08 14:57:55 -08:00

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.
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