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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-01-27 15:15:13 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-02-12 09:37:21 +0100 |
| commit | 49253925c0be02ed4eb7d94a426731107dd8059d (patch) | |
| tree | 350203d651419aa715ca6fe3ef9d8b0ab620aea2 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security (diff) | |
| download | wireguard-linux-49253925c0be02ed4eb7d94a426731107dd8059d.tar.xz wireguard-linux-49253925c0be02ed4eb7d94a426731107dd8059d.zip | |
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>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions