| commit | 1f142c17d19a5618d5a633195a46f2c8be9bf232 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Wed Oct 09 15:10:15 2019 -0700 |
| committer | Jakub Kicinski <jakub.kicinski@netronome.com> | Wed Oct 09 21:35:00 2019 -0700 |
| tree | b64b0a41ac143b7a2eefa20d06eab67a5c4f16da | |
| parent | 60b173ca3d1cd1782bd0096dc17298ec242f6fb1 [diff] |
tcp: annotate lockless access to tcp_memory_pressure
tcp_memory_pressure is read without holding any lock,
and its value could be changed on other cpus.
Use READ_ONCE() to annotate these lockless reads.
The write side is already using atomic ops.
Fixes: b8da51ebb1aa ("tcp: introduce tcp_under_memory_pressure()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>