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Diffstat (limited to 'target/linux/generic/backport-4.9/024-8-tcp-tsq-move-tsq_flags-close-to-sk_wmem_alloc.patch')
-rw-r--r--target/linux/generic/backport-4.9/024-8-tcp-tsq-move-tsq_flags-close-to-sk_wmem_alloc.patch176
1 files changed, 0 insertions, 176 deletions
diff --git a/target/linux/generic/backport-4.9/024-8-tcp-tsq-move-tsq_flags-close-to-sk_wmem_alloc.patch b/target/linux/generic/backport-4.9/024-8-tcp-tsq-move-tsq_flags-close-to-sk_wmem_alloc.patch
deleted file mode 100644
index 0a5b9ead9d..0000000000
--- a/target/linux/generic/backport-4.9/024-8-tcp-tsq-move-tsq_flags-close-to-sk_wmem_alloc.patch
+++ /dev/null
@@ -1,176 +0,0 @@
-From 7aa5470c2c09265902b5e4289afa82e4e7c2987e Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Sat, 3 Dec 2016 11:14:57 -0800
-Subject: [PATCH 08/10] tcp: tsq: move tsq_flags close to sk_wmem_alloc
-
-tsq_flags being in the same cache line than sk_wmem_alloc
-makes a lot of sense. Both fields are changed from tcp_wfree()
-and more generally by various TSQ related functions.
-
-Prior patch made room in struct sock and added sk_tsq_flags,
-this patch deletes tsq_flags from struct tcp_sock.
-
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- include/linux/tcp.h | 1 -
- net/ipv4/tcp.c | 4 ++--
- net/ipv4/tcp_ipv4.c | 2 +-
- net/ipv4/tcp_output.c | 24 +++++++++++-------------
- net/ipv4/tcp_timer.c | 4 ++--
- net/ipv6/tcp_ipv6.c | 2 +-
- 6 files changed, 17 insertions(+), 20 deletions(-)
-
---- a/include/linux/tcp.h
-+++ b/include/linux/tcp.h
-@@ -192,7 +192,6 @@ struct tcp_sock {
- u32 tsoffset; /* timestamp offset */
-
- struct list_head tsq_node; /* anchor in tsq_tasklet.head list */
-- unsigned long tsq_flags;
-
- /* Data for direct copy to user */
- struct {
---- a/net/ipv4/tcp.c
-+++ b/net/ipv4/tcp.c
-@@ -665,9 +665,9 @@ static void tcp_push(struct sock *sk, in
- if (tcp_should_autocork(sk, skb, size_goal)) {
-
- /* avoid atomic op if TSQ_THROTTLED bit is already set */
-- if (!test_bit(TSQ_THROTTLED, &tp->tsq_flags)) {
-+ if (!test_bit(TSQ_THROTTLED, &sk->sk_tsq_flags)) {
- NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
-- set_bit(TSQ_THROTTLED, &tp->tsq_flags);
-+ set_bit(TSQ_THROTTLED, &sk->sk_tsq_flags);
- }
- /* It is possible TX completion already happened
- * before we set TSQ_THROTTLED.
---- a/net/ipv4/tcp_ipv4.c
-+++ b/net/ipv4/tcp_ipv4.c
-@@ -446,7 +446,7 @@ void tcp_v4_err(struct sk_buff *icmp_skb
- if (!sock_owned_by_user(sk)) {
- tcp_v4_mtu_reduced(sk);
- } else {
-- if (!test_and_set_bit(TCP_MTU_REDUCED_DEFERRED, &tp->tsq_flags))
-+ if (!test_and_set_bit(TCP_MTU_REDUCED_DEFERRED, &sk->sk_tsq_flags))
- sock_hold(sk);
- }
- goto out;
---- a/net/ipv4/tcp_output.c
-+++ b/net/ipv4/tcp_output.c
-@@ -772,14 +772,15 @@ static void tcp_tasklet_func(unsigned lo
- list_for_each_safe(q, n, &list) {
- tp = list_entry(q, struct tcp_sock, tsq_node);
- list_del(&tp->tsq_node);
-- clear_bit(TSQ_QUEUED, &tp->tsq_flags);
-
- sk = (struct sock *)tp;
-+ clear_bit(TSQ_QUEUED, &sk->sk_tsq_flags);
-+
- if (!sk->sk_lock.owned &&
-- test_bit(TCP_TSQ_DEFERRED, &tp->tsq_flags)) {
-+ test_bit(TCP_TSQ_DEFERRED, &sk->sk_tsq_flags)) {
- bh_lock_sock(sk);
- if (!sock_owned_by_user(sk)) {
-- clear_bit(TCP_TSQ_DEFERRED, &tp->tsq_flags);
-+ clear_bit(TCP_TSQ_DEFERRED, &sk->sk_tsq_flags);
- tcp_tsq_handler(sk);
- }
- bh_unlock_sock(sk);
-@@ -802,16 +803,15 @@ static void tcp_tasklet_func(unsigned lo
- */
- void tcp_release_cb(struct sock *sk)
- {
-- struct tcp_sock *tp = tcp_sk(sk);
- unsigned long flags, nflags;
-
- /* perform an atomic operation only if at least one flag is set */
- do {
-- flags = tp->tsq_flags;
-+ flags = sk->sk_tsq_flags;
- if (!(flags & TCP_DEFERRED_ALL))
- return;
- nflags = flags & ~TCP_DEFERRED_ALL;
-- } while (cmpxchg(&tp->tsq_flags, flags, nflags) != flags);
-+ } while (cmpxchg(&sk->sk_tsq_flags, flags, nflags) != flags);
-
- if (flags & TCPF_TSQ_DEFERRED)
- tcp_tsq_handler(sk);
-@@ -883,7 +883,7 @@ void tcp_wfree(struct sk_buff *skb)
- if (wmem >= SKB_TRUESIZE(1) && this_cpu_ksoftirqd() == current)
- goto out;
-
-- for (oval = READ_ONCE(tp->tsq_flags);; oval = nval) {
-+ for (oval = READ_ONCE(sk->sk_tsq_flags);; oval = nval) {
- struct tsq_tasklet *tsq;
- bool empty;
-
-@@ -891,7 +891,7 @@ void tcp_wfree(struct sk_buff *skb)
- goto out;
-
- nval = (oval & ~TSQF_THROTTLED) | TSQF_QUEUED | TCPF_TSQ_DEFERRED;
-- nval = cmpxchg(&tp->tsq_flags, oval, nval);
-+ nval = cmpxchg(&sk->sk_tsq_flags, oval, nval);
- if (nval != oval)
- continue;
-
-@@ -2136,7 +2136,7 @@ static bool tcp_small_queue_check(struct
- skb->prev == sk->sk_write_queue.next)
- return false;
-
-- set_bit(TSQ_THROTTLED, &tcp_sk(sk)->tsq_flags);
-+ set_bit(TSQ_THROTTLED, &sk->sk_tsq_flags);
- /* It is possible TX completion already happened
- * before we set TSQ_THROTTLED, so we must
- * test again the condition.
-@@ -2234,8 +2234,8 @@ static bool tcp_write_xmit(struct sock *
- unlikely(tso_fragment(sk, skb, limit, mss_now, gfp)))
- break;
-
-- if (test_bit(TCP_TSQ_DEFERRED, &tp->tsq_flags))
-- clear_bit(TCP_TSQ_DEFERRED, &tp->tsq_flags);
-+ if (test_bit(TCP_TSQ_DEFERRED, &sk->sk_tsq_flags))
-+ clear_bit(TCP_TSQ_DEFERRED, &sk->sk_tsq_flags);
- if (tcp_small_queue_check(sk, skb, 0))
- break;
-
-@@ -3546,8 +3546,6 @@ void __tcp_send_ack(struct sock *sk, u32
- /* We do not want pure acks influencing TCP Small Queues or fq/pacing
- * too much.
- * SKB_TRUESIZE(max(1 .. 66, MAX_TCP_HEADER)) is unfortunately ~784
-- * We also avoid tcp_wfree() overhead (cache line miss accessing
-- * tp->tsq_flags) by using regular sock_wfree()
- */
- skb_set_tcp_pure_ack(buff);
-
---- a/net/ipv4/tcp_timer.c
-+++ b/net/ipv4/tcp_timer.c
-@@ -326,7 +326,7 @@ static void tcp_delack_timer(unsigned lo
- inet_csk(sk)->icsk_ack.blocked = 1;
- __NET_INC_STATS(sock_net(sk), LINUX_MIB_DELAYEDACKLOCKED);
- /* deleguate our work to tcp_release_cb() */
-- if (!test_and_set_bit(TCP_DELACK_TIMER_DEFERRED, &tcp_sk(sk)->tsq_flags))
-+ if (!test_and_set_bit(TCP_DELACK_TIMER_DEFERRED, &sk->sk_tsq_flags))
- sock_hold(sk);
- }
- bh_unlock_sock(sk);
-@@ -609,7 +609,7 @@ static void tcp_write_timer(unsigned lon
- tcp_write_timer_handler(sk);
- } else {
- /* delegate our work to tcp_release_cb() */
-- if (!test_and_set_bit(TCP_WRITE_TIMER_DEFERRED, &tcp_sk(sk)->tsq_flags))
-+ if (!test_and_set_bit(TCP_WRITE_TIMER_DEFERRED, &sk->sk_tsq_flags))
- sock_hold(sk);
- }
- bh_unlock_sock(sk);
---- a/net/ipv6/tcp_ipv6.c
-+++ b/net/ipv6/tcp_ipv6.c
-@@ -404,7 +404,7 @@ static void tcp_v6_err(struct sk_buff *s
- if (!sock_owned_by_user(sk))
- tcp_v6_mtu_reduced(sk);
- else if (!test_and_set_bit(TCP_MTU_REDUCED_DEFERRED,
-- &tp->tsq_flags))
-+ &sk->sk_tsq_flags))
- sock_hold(sk);
- goto out;
- }
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-28 06:04:56 +0000