linux/linux-5.4.31/scripts/atomic/fallbacks/dec_unless_positive

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2024-01-30 10:43:28 +00:00
cat <<EOF
static inline bool
${atomic}_dec_unless_positive(${atomic}_t *v)
{
${int} c = ${atomic}_read(v);
do {
if (unlikely(c > 0))
return false;
} while (!${atomic}_try_cmpxchg(v, &c, c - 1));
return true;
}
EOF