[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20240208144323.1248887-3-edumazet@google.com>
Date: Thu, 8 Feb 2024 14:43:22 +0000
From: Eric Dumazet <edumazet@...gle.com>
To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, Naman Gulati <namangulati@...gle.com>,
Coco Li <lixiaoyan@...gle.com>, Wei Wang <weiwan@...gle.com>, eric.dumazet@...il.com,
Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH net 2/3] tcp: move tp->tcp_usec_ts to tcp_sock_read_txrx group
tp->tcp_usec_ts is a read mostly field, used in rx and tx fast paths.
Fixes: d5fed5addb2b ("tcp: reorganize tcp_sock fast path variables")
Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Cc: Coco Li <lixiaoyan@...gle.com>
Cc: Wei Wang <weiwan@...gle.com>
---
Documentation/networking/net_cachelines/tcp_sock.rst | 2 +-
include/linux/tcp.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/Documentation/networking/net_cachelines/tcp_sock.rst b/Documentation/networking/net_cachelines/tcp_sock.rst
index 80391229147971005571f9a9a4fcdcf4e50089da..1c154cbd18487e385c8ae7a1e39d3b5f5ab086a2 100644
--- a/Documentation/networking/net_cachelines/tcp_sock.rst
+++ b/Documentation/networking/net_cachelines/tcp_sock.rst
@@ -44,7 +44,7 @@ u16 advmss - read_m
u8 compressed_ack
u8:2 dup_ack_counter
u8:1 tlp_retrans
-u8:1 tcp_usec_ts
+u8:1 tcp_usec_ts read_mostly read_mostly
u32 chrono_start read_write - tcp_chrono_start/stop(tcp_write_xmit,tcp_cwnd_validate,tcp_send_syn_data)
u32[3] chrono_stat read_write - tcp_chrono_start/stop(tcp_write_xmit,tcp_cwnd_validate,tcp_send_syn_data)
u8:2 chrono_type read_write - tcp_chrono_start/stop(tcp_write_xmit,tcp_cwnd_validate,tcp_send_syn_data)
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 168f5dca66096589e7a213ffd6742a51fe43b4a9..a1c47a6d69b0efd7e62765fbd873c848da22aaec 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -224,6 +224,7 @@ struct tcp_sock {
u8 scaling_ratio; /* see tcp_win_from_space() */
u8 chrono_type : 2, /* current chronograph type */
repair : 1,
+ tcp_usec_ts : 1, /* TSval values in usec */
is_sack_reneg:1, /* in recovery from loss with SACK reneg? */
is_cwnd_limited:1;/* forward progress limited by snd_cwnd? */
__cacheline_group_end(tcp_sock_read_txrx);
@@ -368,8 +369,7 @@ struct tcp_sock {
u8 compressed_ack;
u8 dup_ack_counter:2,
tlp_retrans:1, /* TLP is a retransmission */
- tcp_usec_ts:1, /* TSval values in usec */
- unused:4;
+ unused:5;
u8 thin_lto : 1,/* Use linear timeouts for thin streams */
recvmsg_inq : 1,/* Indicate # of bytes in queue upon recvmsg */
fastopen_connect:1, /* FASTOPEN_CONNECT sockopt */
--
2.43.0.594.gd9cf4e227d-goog
Powered by blists - more mailing lists