tree 350203d651419aa715ca6fe3ef9d8b0ab620aea2
parent 8cc748aa76c921d8834ef00f762f31acd2c93aa8
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1422368113 +0100
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1423730241 +0100

s390/vdso: fix clock_gettime for CLOCK_THREAD_CPUTIME_ID, -2 and -3

Git commit 8d8f2e18a6dbd3d09dd918788422e6ac8c878e96
"s390/vdso: ectg gettime support for CLOCK_THREAD_CPUTIME_ID"
broke clock_gettime for CLOCK_THREAD_CPUTIME_ID.

Git commit c742b31c03f37c5c499178f09f57381aa6c70131
"fast vdso implementation for CLOCK_THREAD_CPUTIME_ID"
introduced the ECTG for clock id -2. Correct would have been
clock id -3.

Fix the whole mess, CLOCK_THREAD_CPUTIME_ID is based on
CPUCLOCK_SCHED and can not be speed up by the vdso. A speedup
is only available for clock id -3 which is CPUCLOCK_VIRT for
the task currently running on the CPU.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>