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(parent: 14041bf) | patch
tcp: Fix data-races around sysctl_tcp_no_ssthresh_metrics_save.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 20 Jul 2022 16:50:17 +0000 (09:50 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 22 Jul 2022 11:06:17 +0000 (12:06 +0100)
commit3ac007ed04c936aa7f5bb66f8ebb4a78f7e0af41
tree4d454799a04c360beb15452bb5f1f0a1dea08b8etree | snapshot
parent14041bfc0132f82b229458a24db12ec05ed99ab1commit | diff
tcp: Fix data-races around sysctl_tcp_no_ssthresh_metrics_save.

While reading sysctl_tcp_no_ssthresh_metrics_save, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its readers.

Fixes: cef2872422a9 ("net-tcp: Disable TCP ssthresh metrics cache by default")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_metrics.c diff | blob | history
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