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| author | Peter Zijlstra <peterz@infradead.org> | 2014-03-26 21:29:28 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-08-14 14:48:13 +0400 |
| commit | 4f3316c2b5fe2062c26c9b66915b5a5c80c60a5c (patch) | |
| tree | 1ed6ef20fc6b7aa7c6b33a4135dc664a0c2901fe /arch/sparc/include/asm/atomic_32.h | |
| parent | c6470150dff9aff682063890c9b8eac71b695def (diff) | |
| download | linux-4f3316c2b5fe2062c26c9b66915b5a5c80c60a5c.tar.xz | |
locking,arch,sparc: Fold atomic_ops
Many of the atomic op implementations are the same except for one
instruction; fold the lot into a few CPP macros and reduce LoC.
This also prepares for easy addition of new ops.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kirill Tkhai <tkhai@yandex.ru>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: sparclinux@vger.kernel.org
Link: http://lkml.kernel.org/r/20140508135852.825281379@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/sparc/include/asm/atomic_32.h')
| -rw-r--r-- | arch/sparc/include/asm/atomic_32.h | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/arch/sparc/include/asm/atomic_32.h b/arch/sparc/include/asm/atomic_32.h index 7aed2be45b44..7b024f02a7ce 100644 --- a/arch/sparc/include/asm/atomic_32.h +++ b/arch/sparc/include/asm/atomic_32.h @@ -20,7 +20,7 @@ #define ATOMIC_INIT(i) { (i) } -int __atomic_add_return(int, atomic_t *); +int atomic_add_return(int, atomic_t *); int atomic_cmpxchg(atomic_t *, int, int); #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) int __atomic_add_unless(atomic_t *, int, int); @@ -28,15 +28,14 @@ void atomic_set(atomic_t *, int); #define atomic_read(v) (*(volatile int *)&(v)->counter) -#define atomic_add(i, v) ((void)__atomic_add_return( (int)(i), (v))) -#define atomic_sub(i, v) ((void)__atomic_add_return(-(int)(i), (v))) -#define atomic_inc(v) ((void)__atomic_add_return( 1, (v))) -#define atomic_dec(v) ((void)__atomic_add_return( -1, (v))) +#define atomic_add(i, v) ((void)atomic_add_return( (int)(i), (v))) +#define atomic_sub(i, v) ((void)atomic_add_return(-(int)(i), (v))) +#define atomic_inc(v) ((void)atomic_add_return( 1, (v))) +#define atomic_dec(v) ((void)atomic_add_return( -1, (v))) -#define atomic_add_return(i, v) (__atomic_add_return( (int)(i), (v))) -#define atomic_sub_return(i, v) (__atomic_add_return(-(int)(i), (v))) -#define atomic_inc_return(v) (__atomic_add_return( 1, (v))) -#define atomic_dec_return(v) (__atomic_add_return( -1, (v))) +#define atomic_sub_return(i, v) (atomic_add_return(-(int)(i), (v))) +#define atomic_inc_return(v) (atomic_add_return( 1, (v))) +#define atomic_dec_return(v) (atomic_add_return( -1, (v))) #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) |