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| author | Eric Dumazet <edumazet@google.com> | 2023-06-06 07:41:14 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-06-07 10:08:45 +0100 |
| commit | 1e5c647c3f6d4f8497dedcd226204e1880e0ffb3 (patch) | |
| tree | aca249e3fd5b97c6834ecd59203cb1f2f1e588af /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ab39b113e74751958aac1b125a14ee42bd7d3efd (diff) | |
rfs: annotate lockless accesses to sk->sk_rxhash
Add READ_ONCE()/WRITE_ONCE() on accesses to sk->sk_rxhash.
This also prevents a (smart ?) compiler to remove the condition in:
if (sk->sk_rxhash != newval)
sk->sk_rxhash = newval;
We need the condition to avoid dirtying a shared cache line.
Fixes: fec5e652e58f ("rfs: Receive Flow Steering")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions