Eric Dumazet f4dae54e48 tcp: plug skb_still_in_host_queue() to TSQ ... Jakub and Neil reported an increase of RTO timers whenever TX completions are delayed a bit more (by increasing NIC TX coalescing parameters) Main issue is that TCP stack has a logic preventing a packet being retransmit if the prior clone has not yet been orphaned or freed. This logic came with commit 1f3279ae0c ("tcp: avoid retransmits of TCP packets hanging in host queues") Thankfully, in the case skb_still_in_host_queue() detects the initial clone is still in flight, it can use TSQ logic that will eventually retry later, at the moment the clone is freed or orphaned. Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Neil Spring <ntspring@fb.com> Reported-by: Jakub Kicinski <kuba@kernel.org> Cc: Neal Cardwell <ncardwell@google.com> Cc: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-03-11 18:35:31 -08:00
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acpi	IOMMU Updates for Linux v5.12	2021-02-22 10:31:29 -08:00
asm-generic	RISC-V Patches for the 5.12 Merge Window	2021-02-26 10:28:35 -08:00
clocksource	…
crypto	Keyrings miscellany	2021-02-23 16:09:23 -08:00
drm	drm/drm_vblank: set the dma-fence timestamp during send_vblank_event	2021-02-24 21:05:54 +05:30
dt-bindings	RISC-V Patches for the 5.12 Merge Window	2021-02-26 10:28:35 -08:00
keys	…
kunit	…
kvm	…
linux	tcp: plug skb_still_in_host_queue() to TSQ	2021-03-11 18:35:31 -08:00
math-emu	…
media	Fixes around VM_FPNMAP and follow_pfn	2021-02-22 17:45:02 -08:00
memory	…
misc	…
net	nexthop: Allow reporting activity of nexthop buckets	2021-03-11 16:13:00 -08:00
pcmcia	…
ras	…
rdma	…
scsi	…
soc	RISC-V Patches for the 5.12 Merge Window	2021-02-26 10:28:35 -08:00
sound	ALSA/ASoC/SOF/SoundWire: fix Kconfig issues	2021-03-02 18:30:07 +01:00
target	scsi: target: core: Add cmd length set before cmd complete	2021-02-22 22:21:29 -05:00
trace	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2021-03-09 18:07:05 -08:00
uapi	nexthop: Add netlink defines and enumerators for resilient NH groups	2021-03-11 16:12:59 -08:00
vdso	…
video	…
xen	xen/events: add per-xenbus device event statistics and settings	2021-02-23 10:07:11 -06:00