On Thu, Feb 27, 2020 at 08:40:44AM +0800, Boqun Feng wrote: > A recent discussion raises up the requirement for having test cases for > atomic APIs: > > https://lore.kernel.org/lkml/20200213085849.GL14897@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ > > , and since we already have a way to generate a test module from a > litmus test with klitmus[1]. It makes sense that we add more litmus > tests for atomic APIs. And based on the previous discussion, I create a > new directory Documentation/atomic-tests and put these litmus tests > here. > > This patchset starts the work by adding the litmus tests which are > already used in atomic_t.txt, and also improve the atomic_t.txt to make > it consistent with the litmus tests. > > Previous version: > v1: https://lore.kernel.org/linux-doc/20200214040132.91934-1-boqun.feng@xxxxxxxxx/ > v2: https://lore.kernel.org/lkml/20200219062627.104736-1-boqun.feng@xxxxxxxxx/ > > Changes since v2: > > * Change from "RFC" to "PATCH". > > * Wording improvement in atomic_t.txt as per Alan's suggestion. > > * Add a new patch describing the usage of atomic_add_unless() is > not limited anymore for LKMM litmus tests. > > My PR on supporting "(void) expr;" statement has been merged by Luc > (Thank you, Luc). So all the litmus tests in this patchset can be > handled by the herdtools compiled from latest master branch of the > source code. > > Comments and suggestions are welcome! A few nits (see inline), but otherwise the series looks good to me; with those fixed, please feel free to add: Acked-by: Andrea Parri <parri.andrea@xxxxxxxxx> to the entire series. Thanks, Andrea > > Regards, > Boqun > > [1]: http://diy.inria.fr/doc/litmus.html#klitmus > > Boqun Feng (5): > tools/memory-model: Add an exception for limitations on _unless() > family > Documentation/locking/atomic: Fix atomic-set litmus test > Documentation/locking/atomic: Introduce atomic-tests directory > Documentation/locking/atomic: Add a litmus test for atomic_set() > Documentation/locking/atomic: Add a litmus test smp_mb__after_atomic() > > ...ter_atomic-is-stronger-than-acquire.litmus | 32 +++++++++++++++++++ > ...c-RMW-ops-are-atomic-WRT-atomic_set.litmus | 24 ++++++++++++++ > Documentation/atomic-tests/README | 16 ++++++++++ > Documentation/atomic_t.txt | 24 +++++++------- > MAINTAINERS | 1 + > tools/memory-model/README | 10 ++++-- > 6 files changed, 92 insertions(+), 15 deletions(-) > create mode 100644 Documentation/atomic-tests/Atomic-RMW+mb__after_atomic-is-stronger-than-acquire.litmus > create mode 100644 Documentation/atomic-tests/Atomic-RMW-ops-are-atomic-WRT-atomic_set.litmus > create mode 100644 Documentation/atomic-tests/README > > -- > 2.25.0 >
