diff options
| author | Ingo Molnar <mingo@kernel.org> | 2019-12-17 14:28:02 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-12-17 14:28:02 +0300 |
| commit | 57e04eeda515ee979fec3bc3d64c408feae18acc (patch) | |
| tree | f18d4d0885211ee7bd543a2363c035a290037556 /net/ipv4/tcp_timer.c | |
| parent | 0f60a0bcc1b96d531fa623ab520f863f1292c75b (diff) | |
| parent | 58b3bafff8257c6946df5d6aeb215b8ac839ed2a (diff) | |
| download | linux-57e04eeda515ee979fec3bc3d64c408feae18acc.tar.xz | |
Merge tag 'perf-urgent-for-mingo-5.5-20191216' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes:
perf top:
Arnaldo Carvalho de Melo:
- Do not bail out when perf_env__read_cpuid() returns ENOSYS, which
has been reported happening on aarch64.
perf metricgroup:
Kajol Jain:
- Fix printing event names of metric group with multiple events
vendor events:
x86:
Ravi Bangoria:
- Fix Kernel_Utilization metric.
s390:
Ed Maste:
- Fix counter long description for DTLB1_GPAGE_WRITES and L1D_RO_EXCL_WRITES.
perf header:
Michael Petlan:
- Fix false warning when there are no duplicate cache entries
libtraceevent:
Sudip Mukherjee:
- Allow custom libdir path
API headers:
Arnaldo Carvalho de Melo:
- Sync linux/kvm.h with the kernel sources.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
| -rw-r--r-- | net/ipv4/tcp_timer.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index dd5a6317a801..1097b438befe 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -434,6 +434,7 @@ void tcp_retransmit_timer(struct sock *sk) struct net *net = sock_net(sk); struct inet_connection_sock *icsk = inet_csk(sk); struct request_sock *req; + struct sk_buff *skb; req = rcu_dereference_protected(tp->fastopen_rsk, lockdep_sock_is_held(sk)); @@ -446,7 +447,12 @@ void tcp_retransmit_timer(struct sock *sk) */ return; } - if (!tp->packets_out || WARN_ON_ONCE(tcp_rtx_queue_empty(sk))) + + if (!tp->packets_out) + return; + + skb = tcp_rtx_queue_head(sk); + if (WARN_ON_ONCE(!skb)) return; tp->tlp_high_seq = 0; @@ -480,7 +486,7 @@ void tcp_retransmit_timer(struct sock *sk) goto out; } tcp_enter_loss(sk); - tcp_retransmit_skb(sk, tcp_rtx_queue_head(sk), 1); + tcp_retransmit_skb(sk, skb, 1); __sk_dst_reset(sk); goto out_reset_timer; } |