diff options
| author | Frederic Weisbecker <[email protected]> | 2024-05-15 14:53:31 +0200 |
|---|---|---|
| committer | Paul E. McKenney <[email protected]> | 2024-06-28 06:44:12 -0700 |
| commit | 55911a9f4287c19bf7ef29aeace14044a6ed88cb (patch) | |
| tree | 3e01d93cddd58afaa7d15e450b97593e12f1c4aa /tools/perf/scripts/python/parallel-perf.py | |
| parent | e7a3c8ea6e2509f71150fa13b00da3ef2bbe2387 (diff) | |
rcu: Remove full memory barrier on RCU stall printout
RCU stall printout fetches the EQS state of a CPU with a preceding full
memory barrier. However there is nothing to order this read against at
this debugging stage. It is inherently racy when performed remotely.
Do a plain read instead.
This was the last user of rcu_dynticks_snap().
Signed-off-by: Frederic Weisbecker <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
Reviewed-by: Boqun Feng <[email protected]>
Reviewed-by: Neeraj Upadhyay <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/parallel-perf.py')
0 files changed, 0 insertions, 0 deletions