diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2009-09-11 04:28:34 -0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-09-11 04:29:43 -0400 |
| commit | 12751058515860ed43c8f874ebcb2097b323736a (patch) | |
| tree | 491ec6fe0b0f16da7f05f4edc924ba9a60986588 /arch/s390/Kconfig | |
| parent | 6ac2a4ddd10d6916785b4c566d521025c855f823 (diff) | |
[S390] atomic ops: add effecient atomic64 support for 31 bit
Use compare double and swap to implement efficient atomic64 ops for 31 bit.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 2ae5d72f47ed..47836b945d03 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig | |||
| @@ -95,7 +95,6 @@ config S390 | |||
| 95 | select HAVE_ARCH_TRACEHOOK | 95 | select HAVE_ARCH_TRACEHOOK |
| 96 | select INIT_ALL_POSSIBLE | 96 | select INIT_ALL_POSSIBLE |
| 97 | select HAVE_PERF_COUNTERS | 97 | select HAVE_PERF_COUNTERS |
| 98 | select GENERIC_ATOMIC64 if !64BIT | ||
| 99 | 98 | ||
| 100 | config SCHED_OMIT_FRAME_POINTER | 99 | config SCHED_OMIT_FRAME_POINTER |
| 101 | bool | 100 | bool |