netdev - [PATCH net-next v7 0/3] net: tcp: un-pin tw timer

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Message-ID: <20240604140903.31939-1-fw@strlen.de>
Date: Tue,  4 Jun 2024 16:08:46 +0200
From: Florian Westphal <fw@...len.de>
To: netdev@...r.kernel.org
Cc: Paolo Abeni <pabeni@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	vschneid@...hat.com,
	tglozar@...hat.com,
	bigeasy@...utronix.de,
	Florian Westphal <fw@...len.de>
Subject: [PATCH net-next v7 0/3] net: tcp: un-pin tw timer

This is v7 of the series where the tw_timer is un-pinned to get rid of
interferences in isolated CPUs setups.

First patch makes necessary preparations, existing code relies on
TIMER_PINNED to avoid races.

Second patch un-pins the TW timer. Could be folded into the first one,
but it might help wrt. bisection.

Third patch is a minor cleanup to move a helper from .h to the only
remaining compilation unit.

Tested with iperf3 and stress-ng socket mode.

Changes since previous iteration:
 - use timer_shutdown_sync, ehash lock can be released before
 - fix 'ddcp' typo in patch subject

Florian Westphal (2):
  net: tcp: un-pin the tw_timer
  tcp: move inet_twsk_schedule helper out of header

Valentin Schneider (1):
  net: tcp/dccp: prepare for tw_timer un-pinning

 include/net/inet_timewait_sock.h | 11 +++---
 net/dccp/minisocks.c             |  3 +-
 net/ipv4/inet_timewait_sock.c    | 59 +++++++++++++++++++++++++++-----
 net/ipv4/tcp_minisocks.c         |  3 +-
 4 files changed, 57 insertions(+), 19 deletions(-)

-- 
2.44.2