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tcp: use callout(9) directly instead of pr_slowtimo
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Authored by glebius on Aug 12 2022, 8:14 AM.

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Summary

Modern TCP stacks uses multiple callouts per tcpcb, and a global
callout is ancient artifact. However it is still used to garbage
collect compressed timewait entries.

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rG FreeBSD src repository
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Event Timeline

This revision is now accepted and ready to land.Aug 12 2022, 10:06 AM
sys/netinet/tcp_subr.c
1573 ↗(On Diff #109225)

Maybe schedule it immediately to avoid duplicating the timeout? Or define it explicitly in tcp_var.h ?

sys/netinet/tcp_timer.c
256
This revision now requires review to proceed.Aug 16 2022, 10:12 PM
This revision is now accepted and ready to land.Aug 17 2022, 6:07 PM