kernel_samsung_a53x/scripts/atomic/fallbacks/dec_if_positive
2024-06-15 16:02:09 -03:00

15 lines
265 B
Text
Executable file

cat <<EOF
static __always_inline ${ret}
${arch}${atomic}_dec_if_positive(${atomic}_t *v)
{
${int} dec, c = ${arch}${atomic}_read(v);
do {
dec = c - 1;
if (unlikely(dec < 0))
break;
} while (!${arch}${atomic}_try_cmpxchg(v, &c, dec));
return dec;
}
EOF