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6b91fd65a1
commit e142cc87ac4ec618f2ccf5f68aedcd6e28a59d9d upstream.
On Android with arm, there is some synchronization needed to avoid a
deadlock when forking after pthread_create.
Link: https://lkml.kernel.org/r/20241003211716.371786-3-edliaw@google.com
Fixes: cff2945827 ("selftests/mm: extend and rename uffd pagemap test")
Signed-off-by: Edward Liaw <edliaw@google.com>
Cc: Lokesh Gidra <lokeshgidra@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>