summaryrefslogtreecommitdiff
path: root/include/linux/tcp.h
diff options
context:
space:
mode:
authorEric Dumazet <edumazet@google.com>2024-04-05 10:29:26 +0000
committerDavid S. Miller <davem@davemloft.net>2024-04-08 11:49:02 +0100
commitd2c3a7eb1afada8cfb5fde41489913ea5733a319 (patch)
tree104b119bf4e6065b73709b5f4dc81a8756a364e2 /include/linux/tcp.h
parent7c7be68346b9e30e343526bfac939efadc183e96 (diff)
tcp: more struct tcp_sock adjustments
tp->recvmsg_inq is used from tcp recvmsg() thus should be in tcp_sock_read_rx group. tp->tcp_clock_cache and tp->tcp_mstamp are written both in rx and tx paths, thus are better placed in tcp_sock_write_txrx group. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/tcp.h')
-rw-r--r--include/linux/tcp.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 55399ee2a57e..6a5e08b937b3 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -244,6 +244,7 @@ struct tcp_sock {
/* OOO segments go in this rbtree. Socket lock must be held. */
struct rb_root out_of_order_queue;
u32 snd_ssthresh; /* Slow start size threshold */
+ u8 recvmsg_inq : 1;/* Indicate # of bytes in queue upon recvmsg */
__cacheline_group_end(tcp_sock_read_rx);
/* TX read-write hotpath cache lines */
@@ -266,8 +267,6 @@ struct tcp_sock {
u32 mdev_us; /* medium deviation */
u32 rtt_seq; /* sequence number to update rttvar */
u64 tcp_wstamp_ns; /* departure time for next sent data packet */
- u64 tcp_clock_cache; /* cache last tcp_clock_ns() (see tcp_mstamp_refresh()) */
- u64 tcp_mstamp; /* most recent packet received/sent */
struct list_head tsorted_sent_queue; /* time-sorted sent but un-SACKed skbs */
struct sk_buff *highest_sack; /* skb just after the highest
* skb with SACKed bit set
@@ -284,6 +283,8 @@ struct tcp_sock {
* 0x5?10 << 16 + snd_wnd in net byte order
*/
__be32 pred_flags;
+ u64 tcp_clock_cache; /* cache last tcp_clock_ns() (see tcp_mstamp_refresh()) */
+ u64 tcp_mstamp; /* most recent packet received/sent */
u32 rcv_nxt; /* What we want to receive next */
u32 snd_nxt; /* Next sequence we send */
u32 snd_una; /* First byte we want an ack for */
@@ -370,7 +371,6 @@ struct tcp_sock {
tlp_retrans:1, /* TLP is a retransmission */
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 */
fastopen_no_cookie:1, /* Allow send/recv SYN+data without a cookie */
fastopen_client_fail:2, /* reason why fastopen failed */