Re: [PATCH 2/3] LKMM: Add litmus test for RCU GP guarantee where reader stores

[Alan Stern]

On Fri, 20 Mar 2020, Joel Fernandes (Google) wrote:

> This adds an example for the important RCU grace period guarantee, which
> shows an RCU reader can never span a grace period.
> 
> Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
> ---
>  .../litmus-tests/RCU+sync+read.litmus         | 37 +++++++++++++++++++
>  1 file changed, 37 insertions(+)
>  create mode 100644 tools/memory-model/litmus-tests/RCU+sync+read.litmus
> 
> diff --git a/tools/memory-model/litmus-tests/RCU+sync+read.litmus b/tools/memory-model/litmus-tests/RCU+sync+read.litmus
> new file mode 100644
> index 0000000000000..73557772e2a32
> --- /dev/null
> +++ b/tools/memory-model/litmus-tests/RCU+sync+read.litmus

Do these new tests really belong here?  I thought we were adding a new 
directory under Documentation/ for litmus tests that illustrate parts 
of the LKMM or memory-barriers.txt.

By contrast, the tests under tools/memory-model are merely to show 
people what litmus tests look like and how they should be written.

Alan