atomic64_sub 66 include/asm-generic/atomic-long.h atomic64_sub(i, v); atomic64_sub 49 include/asm-generic/atomic64.h #define atomic64_dec(v) atomic64_sub(1LL, (v)) atomic64_sub 72 include/asm-generic/local64.h #define local64_sub(i,l) atomic64_sub((i),(&(l)->a))