tree 3d8aeeff16451c5bd61ead4e68bb418e71a3d3bb
parent 491f6f8e5fd9a57aaf03b6d6e3e153f1c27d8a46
author Heiko Carstens <heiko.carstens@de.ibm.com> 1378380377 +0200
committer Heiko Carstens <heiko.carstens@de.ibm.com> 1380365189 +0200

s390: enable ARCH_USE_CMPXCHG_LOCKREF

Enable ARCH_USE_CMPXCHG_LOCKREF since it shows performance improvements
with Linus' simple stat() test case of up to 50% on a 30 cpu system.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>