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locking,arch,sparc: Fold atomic_ops

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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>
This commit is contained in:
Peter Zijlstra
2014-03-26 18:29:28 +01:00
committed by Ingo Molnar
parent c6470150df
commit 4f3316c2b5
6 changed files with 131 additions and 146 deletions
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25
arch/sparc/lib/ksyms.c
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@@ -99,14 +99,23 @@ EXPORT_SYMBOL(___copy_in_user);
EXPORT_SYMBOL(__clear_user);
/* Atomic counter implementation. */
EXPORT_SYMBOL(atomic_add);
EXPORT_SYMBOL(atomic_add_ret);
EXPORT_SYMBOL(atomic_sub);
EXPORT_SYMBOL(atomic_sub_ret);
EXPORT_SYMBOL(atomic64_add);
EXPORT_SYMBOL(atomic64_add_ret);
EXPORT_SYMBOL(atomic64_sub);
EXPORT_SYMBOL(atomic64_sub_ret);
#define ATOMIC_OP(op) \
EXPORT_SYMBOL(atomic_##op); \
EXPORT_SYMBOL(atomic64_##op);
#define ATOMIC_OP_RETURN(op) \
EXPORT_SYMBOL(atomic_##op##_return); \
EXPORT_SYMBOL(atomic64_##op##_return);
#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
ATOMIC_OPS(add)
ATOMIC_OPS(sub)
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
EXPORT_SYMBOL(atomic64_dec_if_positive);
/* Atomic bit operations. */