arch_atomic64_fetch_sub  192 arch/arm64/include/asm/atomic.h #define arch_atomic64_fetch_sub			arch_atomic64_fetch_sub
arch_atomic64_fetch_sub  331 arch/x86/include/asm/atomic64_32.h #define arch_atomic64_fetch_sub(i, v)	arch_atomic64_fetch_add(-(i), (v))
arch_atomic64_fetch_sub  173 arch/x86/include/asm/atomic64_64.h static inline s64 arch_atomic64_fetch_sub(s64 i, atomic64_t *v)