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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2016-07-18 17:10:17 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-08-29 11:04:58 +0200 |
| commit | 67f03de5f0ad6b4b0481bb43e4a819d1a441900b (patch) | |
| tree | 085d38da1501517aea60964199638d4fa264983e /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 0c00b1e00bba9c9046bee4e487ed19360da9ded0 (diff) | |
s390/time: avoid races when updating tb_update_count
The increment might not be atomic and we're not holding the
timekeeper_lock. Therefore we might lose an update to count, resulting in
VDSO being trapped in a loop. As other archs also simply update the
values and count doesn't seem to have an impact on reloading of these
values in VDSO code, let's just remove the update of tb_update_count.
Suggested-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions