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tcp: un-pin tcp timewait timers

Florian Westphalrequested to merge
fwestpha/centos-stream-9-fw:RHEL-9279 into main

JIRA: https://issues.redhat.com/browse/RHEL-9279 Upstream Status: all mainline

TCP Timewait timers are pinned, i.e. the timer will fire on the same CPU as the one that arms the timer. This causes latency artefacts for realtime kernel setups where a CPU is isolated after a tcp timewait timer was armed. This removes the PINNED flag from the timer so timer subsystem can run the timer fn on another, non-isolated core.

Signed-off-by: Florian Westphal fwestpha@redhat.com

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