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Merge branch 'ipv6-tcp-no-longer-rebuild-fl6-at-each-transmit'

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Eric Dumazet says:

====================
ipv6: tcp: no longer rebuild fl6 at each transmit

TCP v6 spends a good amount of time rebuilding a fresh fl6 at each
transmit in inet6_csk_xmit()/inet6_csk_route_socket().

TCP v4 caches the information in inet->cork.fl.u.ip4 instead.

This series changes TCP v6 to behave the same, saving cpu cycles
and reducing cache line misses and stack use.
====================

Link: https://patch.msgid.link/20260206173426.1638518-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2026-02-10 20:57:52 -08:00
commit 70f1fbee85
6 changed files with 82 additions and 72 deletions
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