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[0/3] selftests/mm: revert pthread_barrier change and

Message ID 20241018171734.2315053-1-edliaw@google.com
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Series selftests/mm: revert pthread_barrier change and | expand

Message

Edward Liaw Oct. 18, 2024, 5:17 p.m. UTC 
On Android arm, pthread_create followed by a fork caused a deadlock in
the case where the fork required work to be completed by the created
thread.

The previous patches incorrectly assumed that the parent would
always initialize the pthread_barrier for the child thread.  This
reverts the change and replaces the fix for wp-fork-with-event with the
original use of atomic_bool.

Edward Liaw (3):
  Revert "selftests/mm: fix deadlock for fork after pthread_create on
    ARM"
  Revert "selftests/mm: replace atomic_bool with pthread_barrier_t"
  selftests/mm: fix deadlock for fork after pthread_create with
    atomic_bool

 tools/testing/selftests/mm/uffd-common.c     |  5 ++--
 tools/testing/selftests/mm/uffd-common.h     |  3 ++-
 tools/testing/selftests/mm/uffd-unit-tests.c | 24 ++++++++------------
 3 files changed, 14 insertions(+), 18 deletions(-)

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2.47.0.105.g07ac214952-goog