NR_LOCKS 30 lib/atomic64.c } atomic64_lock[NR_LOCKS] __cacheline_aligned_in_smp = { NR_LOCKS 31 lib/atomic64.c [0 ... (NR_LOCKS - 1)] = { NR_LOCKS 42 lib/atomic64.c return &atomic64_lock[addr & (NR_LOCKS - 1)].lock;