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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-12-02 14:54:56 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-12-02 15:31:10 +0100 |
| commit | b5e64b3de7fdd1db0a12871f7114fc1da899df8e (patch) | |
| tree | f6c7dae3006a8f16ecfea0d8f6b2ae0c83ea69df /arch/s390/kernel/asm-offsets.c | |
| parent | s390/vdso: fix access-list entry initialization (diff) | |
| download | linux-b5e64b3de7fdd1db0a12871f7114fc1da899df8e.tar.xz linux-b5e64b3de7fdd1db0a12871f7114fc1da899df8e.zip | |
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>
Diffstat (limited to 'arch/s390/kernel/asm-offsets.c')
| -rw-r--r-- | arch/s390/kernel/asm-offsets.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c index 496116cd65ec..e4c99a183651 100644 --- a/arch/s390/kernel/asm-offsets.c +++ b/arch/s390/kernel/asm-offsets.c @@ -72,6 +72,7 @@ int main(void) /* constants used by the vdso */ DEFINE(__CLOCK_REALTIME, CLOCK_REALTIME); DEFINE(__CLOCK_MONOTONIC, CLOCK_MONOTONIC); + DEFINE(__CLOCK_THREAD_CPUTIME_ID, CLOCK_THREAD_CPUTIME_ID); DEFINE(__CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC); BLANK(); /* idle data offsets */ |