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authorEric Dumazet <edumazet@google.com>2024-02-08 15:43:22 +0100
committerDavid S. Miller <davem@davemloft.net>2024-02-12 10:51:26 +0100
commit666a877deab2bcf8fd11c962d69e687e18168a6f (patch)
tree89e2b63609b851bb4d95016c48310977b4ec9094
parenttcp: move tp->scaling_ratio to tcp_sock_read_txrx group (diff)
downloadlinux-666a877deab2bcf8fd11c962d69e687e18168a6f.tar.xz
linux-666a877deab2bcf8fd11c962d69e687e18168a6f.zip
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@google.com> Cc: Coco Li <lixiaoyan@google.com> Cc: Wei Wang <weiwan@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--Documentation/networking/net_cachelines/tcp_sock.rst2
-rw-r--r--include/linux/tcp.h4
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 803912291479..1c154cbd1848 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 168f5dca6609..a1c47a6d69b0 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 */