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(parent: d1964cc) | patch
s390: enable ARCH_USE_CMPXCHG_LOCKREF
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Thu, 5 Sep 2013 11:26:17 +0000 (13:26 +0200)
committerHeiko Carstens <heiko.carstens@de.ibm.com>
Sat, 28 Sep 2013 10:46:29 +0000 (12:46 +0200)
commitdad04a9da9b205ea3c2bf4467fb356011a692ad8
tree3d8aeeff16451c5bd61ead4e68bb418e71a3d3bbtree | snapshot
parentd1964cceade24c796e998f7dff2a6dd222c4af8dcommit | diff
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>
arch/s390/Kconfig diff | blob | history
arch/s390/include/asm/spinlock.h diff | blob | history
Linux Kernel Source Tree.