]> git.baikalelectronics.ru Git - kernel.git/commit
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)
commitce6f71fe11975cec9ec5b57324b464f5faedc3ad
tree3d8aeeff16451c5bd61ead4e68bb418e71a3d3bb
parent1fa4ff56142a18cef2447b2ab0b552b82ad4f865
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
arch/s390/include/asm/spinlock.h