mirror_ubuntu-kernels/scripts/atomic/fallbacks/dec_if_positive

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2024-07-02 00:48:40 +03:00
cat <<EOF
${int} dec, c = raw_${atomic}_read(v);
do {
dec = c - 1;
if (unlikely(dec < 0))
break;
} while (!raw_${atomic}_try_cmpxchg(v, &c, dec));
return dec;
EOF