Eric Dumazet a8e920b220 tcp: annotate lockless access to tcp_memory_pressure
[ Upstream commit 1f142c17d19a5618d5a633195a46f2c8be9bf232 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-27 14:46:50 +01:00
..
2019-09-16 08:20:44 +02:00
2019-06-22 08:16:14 +02:00
2019-12-05 15:38:15 +01:00
2020-01-17 19:45:49 +01:00
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2020-01-17 19:45:49 +01:00