[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20180529154346.3168-12-mark.rutland@arm.com>
Date: Tue, 29 May 2018 16:43:41 +0100
From: Mark Rutland <mark.rutland@....com>
To: linux-kernel@...r.kernel.org
Cc: Mark Rutland <mark.rutland@....com>,
Boqun Feng <boqun.feng@...il.com>,
Will Deacon <will.deacon@....com>,
Palmer Dabbelt <palmer@...ive.com>,
Albert Ou <albert@...ive.com>
Subject: [PATCHv2 11/16] atomics/riscv: define atomic64_fetch_add_unless()
As a step towards unifying the atomic/atomic64/atomic_long APIs, this
patch converts the arch/riscv implementation of atomic64_add_unless()
into an implementation of atomic64_fetch_add_unless().
A wrapper in <linux/atomic.h> will build atomic_add_unless() atop of
this, provided it is given a preprocessor definition.
No functional change is intended as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@....com>
Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Boqun Feng <boqun.feng@...il.com>
Cc: Will Deacon <will.deacon@....com>
Cc: Palmer Dabbelt <palmer@...ive.com>
Cc: Albert Ou <albert@...ive.com>
---
arch/riscv/include/asm/atomic.h | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/arch/riscv/include/asm/atomic.h b/arch/riscv/include/asm/atomic.h
index 5f161daefcd2..d959bbaaad41 100644
--- a/arch/riscv/include/asm/atomic.h
+++ b/arch/riscv/include/asm/atomic.h
@@ -352,7 +352,7 @@ static __always_inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
#define atomic_fetch_add_unless atomic_fetch_add_unless
#ifndef CONFIG_GENERIC_ATOMIC64
-static __always_inline long __atomic64_add_unless(atomic64_t *v, long a, long u)
+static __always_inline long atomic64_fetch_add_unless(atomic64_t *v, long a, long u)
{
long prev, rc;
@@ -369,11 +369,7 @@ static __always_inline long __atomic64_add_unless(atomic64_t *v, long a, long u)
: "memory");
return prev;
}
-
-static __always_inline int atomic64_add_unless(atomic64_t *v, long a, long u)
-{
- return __atomic64_add_unless(v, a, u) != u;
-}
+#define atomic64_fetch_add_unless atomic64_fetch_add_unless
#endif
/*
--
2.11.0
Powered by blists - more mailing lists