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author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2012-05-09 10:27:39 -0400 |
---|---|---|
committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-05-16 08:42:41 -0400 |
commit | 473e66baad1e83e6c5dfdca65aba03bf21727202 (patch) | |
tree | aab0bd4a295b41d1e29952b2b1260ad72150496b /arch/s390/kernel/early.c | |
parent | 2739b6d12407792f253b7a15233930338e6831c9 (diff) |
s390/time: always use stckf instead of stck if available
The store clock fast instruction saves a couple of instructions compared
to the store clock instruction. Always use stckf instead of stck if it
is available.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/early.c')
-rw-r--r-- | arch/s390/kernel/early.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 9475e682727..d84181f1f5e 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c | |||
@@ -374,8 +374,6 @@ static __init void detect_machine_facilities(void) | |||
374 | S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS; | 374 | S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS; |
375 | if (test_facility(40)) | 375 | if (test_facility(40)) |
376 | S390_lowcore.machine_flags |= MACHINE_FLAG_SPP; | 376 | S390_lowcore.machine_flags |= MACHINE_FLAG_SPP; |
377 | if (test_facility(25)) | ||
378 | S390_lowcore.machine_flags |= MACHINE_FLAG_STCKF; | ||
379 | #endif | 377 | #endif |
380 | } | 378 | } |
381 | 379 | ||