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(parent: 285ce11) | patch
tcp_metrics: annotate data-races around tm->tcpm_vals[]
authorEric Dumazet <edumazet@google.com>
Wed, 2 Aug 2023 13:14:58 +0000 (13:14 +0000)
committerJakub Kicinski <kuba@kernel.org>
Thu, 3 Aug 2023 17:58:24 +0000 (10:58 -0700)
commit8c4d04f6b443869d25e59822f7cec88d647028a9
treee6f680d01cd1850c178a1f308da251bb383258a3tree | snapshot
parent285ce119a3c6c4502585936650143e54c8692788commit | diff
tcp_metrics: annotate data-races around tm->tcpm_vals[]

tm->tcpm_vals[] values can be read or written locklessly.

Add needed READ_ONCE()/WRITE_ONCE() to document this,
and force use of tcp_metric_get() and tcp_metric_set()

Fixes: 51c5d0c4b169 ("tcp: Maintain dynamic metrics in local cache.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/ipv4/tcp_metrics.c diff | blob | history
Domain: System / Kernel;