Files
linux/include/net
Eric Dumazet 87b08913a9 inet: move icmp_global_{credit,stamp} to a separate cache line
icmp_global_credit was meant to be changed ~1000 times per second,
but if an admin sets net.ipv4.icmp_msgs_per_sec to a very high value,
icmp_global_credit changes can inflict false sharing to surrounding
fields that are read mostly.

Move icmp_global_credit and icmp_global_stamp to a separate
cacheline aligned group.

Fixes: b056b4cd91 ("icmp: move icmp_global.credit and icmp_global.stamp to per netns storage")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260216142832.3834174-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-02-18 16:46:36 -08:00
..
2025-11-03 16:49:53 +09:00
2024-10-08 15:33:49 -07:00
2025-09-02 15:52:24 -07:00
2025-04-24 17:03:45 -07:00
2025-07-08 18:05:25 -07:00
2026-01-27 10:45:38 +01:00
2022-08-09 22:14:02 -07:00
2024-05-08 10:35:09 +01:00
2024-08-26 09:37:23 -07:00
2024-11-13 18:49:50 -08:00
2024-08-26 09:37:23 -07:00
2025-08-26 17:34:31 -07:00
2025-09-03 15:16:49 -07:00
2026-01-21 19:28:32 -08:00
2024-05-07 01:35:55 +02:00
2026-01-13 10:12:11 +01:00
2024-08-26 09:37:23 -07:00
2025-09-22 11:38:43 -07:00
2025-08-26 17:34:31 -07:00
2024-12-06 17:43:08 -08:00
2021-10-13 09:40:46 -07:00
2024-08-26 09:37:23 -07:00
2025-04-15 08:21:46 -07:00
2023-07-14 20:39:30 -07:00
2025-09-18 12:32:06 +02:00
2024-08-26 09:37:23 -07:00
2024-08-26 09:37:23 -07:00
2025-09-03 15:08:20 -07:00
2025-04-11 18:58:10 -07:00
2025-07-04 09:32:35 +02:00
2025-04-11 18:58:10 -07:00
2024-05-30 18:29:38 -07:00
2025-09-08 18:06:21 -07:00
2023-10-04 11:49:20 -07:00
2026-02-06 20:12:11 -08:00
2025-07-11 11:00:57 -07:00
2023-07-28 14:07:59 -07:00
2022-12-12 15:04:39 -08:00
2026-01-06 17:06:03 -08:00
2023-09-14 16:16:36 +02:00
2026-02-10 20:21:48 -08:00