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net: move sk_uid and sk_protocol to sock_read_tx

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sk_uid and sk_protocol are read from inet6_csk_route_socket()
for each TCP transmit.

Also read from udpv6_sendmsg(), udp_sendmsg() and others.

Move them to sock_read_tx for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250919204856.2977245-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2025-09-19 20:48:49 +00:00 committed by Jakub Kicinski
parent 4238cbf6ee
commit 17b14d235f
2 changed files with 5 additions and 3 deletions
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6
include/net/sock.h
View File

@ -492,6 +492,9 @@ struct sock {
long sk_sndtimeo;
u32 sk_priority;
u32 sk_mark;
kuid_t sk_uid;
u16 sk_protocol;
u16 sk_type;
struct dst_entry __rcu *sk_dst_cache;
netdev_features_t sk_route_caps;
#ifdef CONFIG_SOCK_VALIDATE_XMIT
@ -517,15 +520,12 @@ struct sock {
sk_no_check_tx : 1,
sk_no_check_rx : 1;
u8 sk_shutdown;
u16 sk_type;
u16 sk_protocol;
unsigned long sk_lingertime;
struct proto *sk_prot_creator;
rwlock_t sk_callback_lock;
int sk_err_soft;
u32 sk_ack_backlog;
u32 sk_max_ack_backlog;
kuid_t sk_uid;
unsigned long sk_ino;
spinlock_t sk_peer_lock;
int sk_bind_phc;

2
net/core/sock.c
View File

@ -4471,6 +4471,8 @@ static int __init sock_struct_check(void)
CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_tx, sk_sndtimeo);
CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_tx, sk_priority);
CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_tx, sk_mark);
CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_tx, sk_uid);
CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_tx, sk_protocol);
CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_tx, sk_dst_cache);
CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_tx, sk_route_caps);
CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_tx, sk_gso_type);