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9026737703
Use smp_mb__before_atomic() rather than smp_mb__before_llsc() in test_and_set_bit(), test_and_clear_bit() & test_and_change_bit(). The _atomic() versions make semantic sense in these cases, and will allow a later patch to omit redundant barriers for Loongson3 systems that already include a barrier within __test_bit_op(). Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org Cc: Huacai Chen <chenhc@lemote.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: linux-kernel@vger.kernel.org