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atomic.h: complete atomic_long operations in asm-generic
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Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mathieu Desnoyers authored and Linus Torvalds committed May 8, 2007
1 parent e96e699 commit bb2382c
Showing 1 changed file with 133 additions and 0 deletions.
133 changes: 133 additions & 0 deletions include/asm-generic/atomic.h
Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@
*/

#include <asm/types.h>
#include <asm/system.h>

/*
* Suppport for atomic_long_t
Expand Down Expand Up @@ -66,6 +67,72 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
atomic64_sub(i, v);
}

static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
{
atomic64_t *v = (atomic64_t *)l;

return atomic64_sub_and_test(i, v);
}

static inline int atomic_long_dec_and_test(atomic_long_t *l)
{
atomic64_t *v = (atomic64_t *)l;

return atomic64_dec_and_test(v);
}

static inline int atomic_long_inc_and_test(atomic_long_t *l)
{
atomic64_t *v = (atomic64_t *)l;

return atomic64_inc_and_test(v);
}

static inline int atomic_long_add_negative(long i, atomic_long_t *l)
{
atomic64_t *v = (atomic64_t *)l;

return atomic64_add_negative(i, v);
}

static inline long atomic_long_add_return(long i, atomic_long_t *l)
{
atomic64_t *v = (atomic64_t *)l;

return (long)atomic64_add_return(i, v);
}

static inline long atomic_long_sub_return(long i, atomic_long_t *l)
{
atomic64_t *v = (atomic64_t *)l;

return (long)atomic64_sub_return(i, v);
}

static inline long atomic_long_inc_return(atomic_long_t *l)
{
atomic64_t *v = (atomic64_t *)l;

return (long)atomic64_inc_return(v);
}

static inline long atomic_long_dec_return(atomic_long_t *l)
{
atomic64_t *v = (atomic64_t *)l;

return (long)atomic64_dec_return(v);
}

#define atomic_long_add_unless(l, a, u) \
atomic64_add_unless((atomic64_t *)(l), (a), (u))

#define atomic_long_inc_not_zero(l) atomic64_inc_not_zero((atomic64_t *)(l))

#define atomic_long_cmpxchg(l, old, new) \
(atomic_cmpxchg((atomic64_t *)(l), (old), (new)))
#define atomic_long_xchg(v, new) \
(atomic_xchg((atomic64_t *)(l), (new)))

#else /* BITS_PER_LONG == 64 */

typedef atomic_t atomic_long_t;
Expand Down Expand Up @@ -113,6 +180,72 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
atomic_sub(i, v);
}

static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
{
atomic_t *v = (atomic_t *)l;

return atomic_sub_and_test(i, v);
}

static inline int atomic_long_dec_and_test(atomic_long_t *l)
{
atomic_t *v = (atomic_t *)l;

return atomic_dec_and_test(v);
}

static inline int atomic_long_inc_and_test(atomic_long_t *l)
{
atomic_t *v = (atomic_t *)l;

return atomic_inc_and_test(v);
}

static inline int atomic_long_add_negative(long i, atomic_long_t *l)
{
atomic_t *v = (atomic_t *)l;

return atomic_add_negative(i, v);
}

static inline long atomic_long_add_return(long i, atomic_long_t *l)
{
atomic_t *v = (atomic_t *)l;

return (long)atomic_add_return(i, v);
}

static inline long atomic_long_sub_return(long i, atomic_long_t *l)
{
atomic_t *v = (atomic_t *)l;

return (long)atomic_sub_return(i, v);
}

static inline long atomic_long_inc_return(atomic_long_t *l)
{
atomic_t *v = (atomic_t *)l;

return (long)atomic_inc_return(v);
}

static inline long atomic_long_dec_return(atomic_long_t *l)
{
atomic_t *v = (atomic_t *)l;

return (long)atomic_dec_return(v);
}

#define atomic_long_add_unless(l, a, u) \
atomic_add_unless((atomic_t *)(l), (a), (u))

#define atomic_long_inc_not_zero(l) atomic_inc_not_zero((atomic_t *)(l))

#define atomic_long_cmpxchg(l, old, new) \
(atomic_cmpxchg((atomic_t *)(l), (old), (new)))
#define atomic_long_xchg(v, new) \
(atomic_xchg((atomic_t *)(l), (new)))

#endif /* BITS_PER_LONG == 64 */

#endif /* _ASM_GENERIC_ATOMIC_H */

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