OpenCloudOS-Kernel/scripts/atomic/fallbacks/dec_unless_positive

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cat <<EOF
static __always_inline bool
arch_${atomic}_dec_unless_positive(${atomic}_t *v)
{
${int} c = arch_${atomic}_read(v);
do {
if (unlikely(c > 0))
return false;
} while (!arch_${atomic}_try_cmpxchg(v, &c, c - 1));
return true;
}
EOF