OSCL-LXR

0001 cat <<EOF
0002 static __always_inline ${ret}
0003 arch_${atomic}_dec_if_positive(${atomic}_t *v)
0004 {
0005         ${int} dec, c = arch_${atomic}_read(v);
0006
0007         do {
0008                 dec = c - 1;
0009                 if (unlikely(dec < 0))
0010                         break;
0011         } while (!arch_${atomic}_try_cmpxchg(v, &c, dec));
0012
0013         return dec;
0014 }
0015 EOF