diff options
| author | Ankur Arora <[email protected]> | 2024-12-13 04:06:55 +0000 |
|---|---|---|
| committer | Boqun Feng <[email protected]> | 2025-02-05 15:01:55 +0000 |
| commit | fcf0e25ad4c8d14d2faab4d9a17040f31efce205 (patch) | |
| tree | 5e8e3598ceb8b0166f46cfd8906eb0f0f952e434 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | sched: update __cond_resched comment about RCU quiescent states (diff) | |
| download | kernel-fcf0e25ad4c8d14d2faab4d9a17040f31efce205.tar.gz kernel-fcf0e25ad4c8d14d2faab4d9a17040f31efce205.zip | |
rcu: handle unstable rdp in rcu_read_unlock_strict()
rcu_read_unlock_strict() can be called with preemption enabled
which can make for an unstable rdp and a racy norm value.
Fix this by dropping the preempt-count in __rcu_read_unlock()
after the call to rcu_read_unlock_strict(), adjusting the
preempt-count check appropriately.
Suggested-by: Frederic Weisbecker <[email protected]>
Signed-off-by: Ankur Arora <[email protected]>
Reviewed-by: Frederic Weisbecker <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Boqun Feng <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions