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atomic.h File Reference
#include <asm/atomic.h>
#include <asm-generic/atomic-long.h>

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#define atomic_inc_not_zero(v)   atomic_add_unless((v), 1, 0)

Macro Definition Documentation

#define atomic_inc_not_zero (   v)    atomic_add_unless((v), 1, 0)

atomic_inc_not_zero - increment unless the number is zero : pointer of type atomic_t

Atomically increments by 1, so long as is non-zero. Returns non-zero if was non-zero, and zero otherwise.

Definition at line 28 of file atomic.h.