diff options
| author | Frederic Weisbecker <frederic@kernel.org> | 2024-05-15 15:53:31 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2024-06-28 16:44:12 +0300 |
| commit | 55911a9f4287c19bf7ef29aeace14044a6ed88cb (patch) | |
| tree | 3e01d93cddd58afaa7d15e450b97593e12f1c4aa /tools/perf/scripts/python/task-analyzer.py | |
| parent | e7a3c8ea6e2509f71150fa13b00da3ef2bbe2387 (diff) | |
| download | linux-55911a9f4287c19bf7ef29aeace14044a6ed88cb.tar.xz | |
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 <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions