diff options
author | Andrew Morton <[email protected]> | 2009-09-19 11:55:44 -0700 |
---|---|---|
committer | Ingo Molnar <[email protected]> | 2009-09-20 20:00:32 +0200 |
commit | 89f19f04dc72363d912fd007a399cb10310eff6e (patch) | |
tree | daa64e5de98a668eed4a2ceeb6ca95c478be4053 /tools/perf/scripts/python/futex-contention.py | |
parent | 3f04e8cd5b24727a2500f8ab8f3de730ba47b02c (diff) |
sched: Fix raciness in runqueue_is_locked()
runqueue_is_locked() is unavoidably racy due to a poor interface design.
It does
cpu = get_cpu()
ret = some_perpcu_thing(cpu);
put_cpu(cpu);
return ret;
Its return value is unreliable.
Fix.
Signed-off-by: Andrew Morton <[email protected]>
Acked-by: Steven Rostedt <[email protected]>
Cc: Peter Zijlstra <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/futex-contention.py')
0 files changed, 0 insertions, 0 deletions