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authorTakashi Iwai <tiwai@suse.de>2021-02-17 21:16:27 +0100
committerTakashi Iwai <tiwai@suse.de>2021-02-17 21:16:27 +0100
commit0c8e97c86b7398281f2224a9d913261d65185f0e (patch)
tree879ad2fc882eff168fda2c720a19095cac6effcc /net/ipv4/tcp_timer.c
parentc3bb2b521944ffbbc8c24b849f81977a9915fb5e (diff)
parent0969db0d8d15caee41cd817154670c38d9ed7f61 (diff)
downloadlinux-0c8e97c86b7398281f2224a9d913261d65185f0e.tar.bz2
Merge tag 'asoc-v5.12' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.12 Another quiet release in terms of features, though several of the drivers got quite a bit of work and there were a lot of general changes resulting from Morimoto-san's ongoing cleanup work. - As ever, lots of hard work by Morimoto-san cleaning up the code and making it more consistent. - Many improvements in the Intel drivers including a wide range of quirks and bug fixes. - A KUnit testsuite for the topology code. - Support for Ingenic JZ4760(B), Intel AlderLake-P, DT configured nVidia cards, Qualcomm lpass-rx-macro and lpass-tx-macro - Removal of obsolete SIRF prima/atlas, Txx9 and ZTE zx drivers.
Diffstat (limited to 'net/ipv4/tcp_timer.c')
-rw-r--r--net/ipv4/tcp_timer.c54
1 files changed, 33 insertions, 21 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 6c62b9ea1320..4ef08079ccfa 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -40,6 +40,24 @@ static u32 tcp_clamp_rto_to_user_timeout(const struct sock *sk)
return min_t(u32, icsk->icsk_rto, msecs_to_jiffies(remaining));
}
+u32 tcp_clamp_probe0_to_user_timeout(const struct sock *sk, u32 when)
+{
+ struct inet_connection_sock *icsk = inet_csk(sk);
+ u32 remaining;
+ s32 elapsed;
+
+ if (!icsk->icsk_user_timeout || !icsk->icsk_probes_tstamp)
+ return when;
+
+ elapsed = tcp_jiffies32 - icsk->icsk_probes_tstamp;
+ if (unlikely(elapsed < 0))
+ elapsed = 0;
+ remaining = msecs_to_jiffies(icsk->icsk_user_timeout) - elapsed;
+ remaining = max_t(u32, remaining, TCP_TIMEOUT_MIN);
+
+ return min_t(u32, remaining, when);
+}
+
/**
* tcp_write_err() - close socket and save error info
* @sk: The socket the error has appeared on.
@@ -219,14 +237,8 @@ static int tcp_write_timeout(struct sock *sk)
int retry_until;
if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV)) {
- if (icsk->icsk_retransmits) {
- dst_negative_advice(sk);
- } else {
- sk_rethink_txhash(sk);
- tp->timeout_rehash++;
- __NET_INC_STATS(sock_net(sk),
- LINUX_MIB_TCPTIMEOUTREHASH);
- }
+ if (icsk->icsk_retransmits)
+ __dst_negative_advice(sk);
retry_until = icsk->icsk_syn_retries ? : net->ipv4.sysctl_tcp_syn_retries;
expired = icsk->icsk_retransmits >= retry_until;
} else {
@@ -234,12 +246,7 @@ static int tcp_write_timeout(struct sock *sk)
/* Black hole detection */
tcp_mtu_probing(icsk, sk);
- dst_negative_advice(sk);
- } else {
- sk_rethink_txhash(sk);
- tp->timeout_rehash++;
- __NET_INC_STATS(sock_net(sk),
- LINUX_MIB_TCPTIMEOUTREHASH);
+ __dst_negative_advice(sk);
}
retry_until = net->ipv4.sysctl_tcp_retries2;
@@ -270,6 +277,11 @@ static int tcp_write_timeout(struct sock *sk)
return 1;
}
+ if (sk_rethink_txhash(sk)) {
+ tp->timeout_rehash++;
+ __NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPTIMEOUTREHASH);
+ }
+
return 0;
}
@@ -349,6 +361,7 @@ static void tcp_probe_timer(struct sock *sk)
if (tp->packets_out || !skb) {
icsk->icsk_probes_out = 0;
+ icsk->icsk_probes_tstamp = 0;
return;
}
@@ -360,13 +373,12 @@ static void tcp_probe_timer(struct sock *sk)
* corresponding system limit. We also implement similar policy when
* we use RTO to probe window in tcp_retransmit_timer().
*/
- if (icsk->icsk_user_timeout) {
- u32 elapsed = tcp_model_timeout(sk, icsk->icsk_probes_out,
- tcp_probe0_base(sk));
-
- if (elapsed >= icsk->icsk_user_timeout)
- goto abort;
- }
+ if (!icsk->icsk_probes_tstamp)
+ icsk->icsk_probes_tstamp = tcp_jiffies32;
+ else if (icsk->icsk_user_timeout &&
+ (s32)(tcp_jiffies32 - icsk->icsk_probes_tstamp) >=
+ msecs_to_jiffies(icsk->icsk_user_timeout))
+ goto abort;
max_probes = sock_net(sk)->ipv4.sysctl_tcp_retries2;
if (sock_flag(sk, SOCK_DEAD)) {