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(parent: 06aae68) | patch
s390/vdso: ectg gettime support for CLOCK_THREAD_CPUTIME_ID
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 2 Dec 2013 13:54:56 +0000 (14:54 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 2 Dec 2013 14:31:10 +0000 (15:31 +0100)
commitb5e64b3de7fdd1db0a12871f7114fc1da899df8e
treef6c7dae3006a8f16ecfea0d8f6b2ae0c83ea69dftree | snapshot
parent06aae6834eb473c94a2493c145fc3e6c9fcf26a5commit | diff
s390/vdso: ectg gettime support for CLOCK_THREAD_CPUTIME_ID

The code to use the ECTG instruction to calculate the cputime for the
current thread is currently used only for the per-thread CPU-clock
with the clockid -2 (PID=0, VIRT=1). Use the same code for the clockid
CLOCK_THREAD_CPUTIME_ID to speed up the more common clockid as well.

Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/kernel/asm-offsets.c diff | blob | history
arch/s390/kernel/vdso64/clock_getres.S diff | blob | history
arch/s390/kernel/vdso64/clock_gettime.S diff | blob | history
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