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Date: Wed, 23 Mar 2022 12:16:40 +0100 From: Artem Savkov <asavkov@...hat.com> To: tglx@...utronix.de, jpoimboe@...hat.com, netdev@...r.kernel.org Cc: davem@...emloft.net, yoshfuji@...ux-ipv6.org, dsahern@...nel.org, linux-kernel@...r.kernel.org, Artem Savkov <asavkov@...hat.com> Subject: [PATCH 0/2] Upper bound mode for kernel timers As previously discussed [1] we had a report of a regression in TCP keepalive timer where timers were up to 4 minutes late resulting in disconnects. This patchset tries to fix the problem by introducing upper bound kernel timers and making tcp keepalive timer use those. [1] https://lore.kernel.org/all/20210302001054.4qgrvnkltvkgikzr@treble/T/#u Artem Savkov (2): timer: introduce upper bound timers net: make tcp keepalive timer upper bound include/linux/timer.h | 3 ++- kernel/time/timer.c | 36 ++++++++++++++++++++------------- net/ipv4/inet_connection_sock.c | 2 +- 3 files changed, 25 insertions(+), 16 deletions(-) -- 2.34.1
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