Function atomic_dec_and_test

Ext4Fsd/include/linux/atomic.h:121–124

* atomic_dec_and_test - decrement and test * @v: pointer of type atomic_t * * Atomically decrements @v by 1 and * returns true if the result is 0, or false for all other * cases. Note that the guaranteed * useful range of an atomic_t is only 24 bits. */

 * useful range of an atomic_t is only 24 bits.
 */
static inline int atomic_dec_and_test(atomic_t volatile *v)
{
    return (0 == InterlockedDecrement((PLONG)(&v->counter)));
}

/**
 * atomic_inc_and_test - increment and test