[S390] switch sched_clock to store-clock-extended.

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Add get_clock_xt to read an 8 byte clock value using store clock
extended (STCKE) and use get_clock_xt for sched_clock. STCKE should
be faster than STCK on newer machines.

Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

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Jan Glauber 2008-04-17 07:46:16 +02:00 • committed by Heiko Carstens

parent 2f7c8bd6dc

commit c0015f91d8

2 changed files with 8 additions and 6 deletions

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2

arch/s390/kernel/time.c

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12

include/asm-s390/timex.h

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