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Some architectures define their own arch_test_bit and they also need arch_test_bit_acquire, otherwise they won't compile. We also clean up the code by using the generic test_bit if that is equivalent to the arch-specific version. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Fixes: 8238b4579866 ("wait_on_bit: add an acquire memory barrier") Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>