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authorMark Rutland <mark.rutland@arm.com>2018-06-21 13:13:19 +0100
committerIngo Molnar <mingo@kernel.org>2018-06-21 14:25:24 +0200
commit9837559d8eb01ce834e56fc9a567c1d94ebd3698 (patch)
treebb475ca639022bddfc8bbdc9c1b963ab0ff30def /arch/s390/include
parent18cc1814d4e7560412c9c8c6d28f9d6782c8b402 (diff)
atomics/treewide: Make unconditional inc/dec ops optional
Many of the inc/dec ops are mandatory, but for most architectures inc/dec are simply trivial wrappers around their corresponding add/sub ops. Let's make all the inc/dec ops optional, so that we can get rid of these boilerplate wrappers. The instrumented atomics are updated accordingly. There should be no functional change as a result of this patch. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Palmer Dabbelt <palmer@sifive.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/lkml/20180621121321.4761-17-mark.rutland@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/s390/include')
-rw-r--r--arch/s390/include/asm/atomic.h8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 7f5fbd595f01..376e64af951f 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -55,13 +55,9 @@ static inline void atomic_add(int i, atomic_t *v)
__atomic_add(i, &v->counter);
}
-#define atomic_inc(_v) atomic_add(1, _v)
-#define atomic_inc_return(_v) atomic_add_return(1, _v)
#define atomic_sub(_i, _v) atomic_add(-(int)(_i), _v)
#define atomic_sub_return(_i, _v) atomic_add_return(-(int)(_i), _v)
#define atomic_fetch_sub(_i, _v) atomic_fetch_add(-(int)(_i), _v)
-#define atomic_dec(_v) atomic_sub(1, _v)
-#define atomic_dec_return(_v) atomic_sub_return(1, _v)
#define ATOMIC_OPS(op) \
static inline void atomic_##op(int i, atomic_t *v) \
@@ -166,12 +162,8 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
return dec;
}
-#define atomic64_inc(_v) atomic64_add(1, _v)
-#define atomic64_inc_return(_v) atomic64_add_return(1, _v)
#define atomic64_sub_return(_i, _v) atomic64_add_return(-(long)(_i), _v)
#define atomic64_fetch_sub(_i, _v) atomic64_fetch_add(-(long)(_i), _v)
#define atomic64_sub(_i, _v) atomic64_add(-(long)(_i), _v)
-#define atomic64_dec(_v) atomic64_sub(1, _v)
-#define atomic64_dec_return(_v) atomic64_sub_return(1, _v)
#endif /* __ARCH_S390_ATOMIC__ */