Patch Series

Subject tun/tap & vhost-net: apply qdisc backpressure on full ptr_ring to reduce TX drops
Author simon.schippers@tu-dortmund.de
Date 2026-05-10 15:15:26 +0000 UTC
Version
Cc andrew@lunn.ch davem@davemloft.net edumazet@google.com eperezma@redhat.com jasowang@redhat.com jon@nutanix.com kuba@kernel.org kvm@vger.kernel.org leiyang@redhat.com linux-kernel@vger.kernel.org mst@redhat.com netdev@vger.kernel.org pabeni@redhat.com simon.schippers@tu-dortmund.de stephen@networkplumber.org tim.gebauer@tu-dortmund.de virtualization@lists.linux.dev willemdebruijn.kernel@gmail.com

Patches (4)

Name Content [All]
[PATCH net-next v12 1/4] tun/tap: add ptr_ring consume helper with netdev queue wakeup [Body]
[PATCH net-next v12 2/4] vhost-net: wake queue of tun/tap after ptr_ring consume [Body]
[PATCH net-next v12 3/4] ptr_ring: move free-space check into separate helper [Body]
[PATCH net-next v12 4/4] tun/tap & vhost-net: avoid ptr_ring tail-drop when a qdisc is present [Body]
Session 2026-05-10
ID (for dev) 697541f7-680e-4a52-a031-20ec163b13d9
Status finished
Triaged OK [Log]
Execution Log [Link]
Test Base Patched Verdict
[KASAN] Build Base f4c50a4034e62ab75f1d5cdd191dd5f9c77fdff4 [Config] passed [Log]
[KASAN] Boot test: Base f4c50a4034e62ab75f1d5cdd191dd5f9c77fdff4 [Config] passed [Log]
[KASAN] Build Patched f4c50a4034e62ab75f1d5cdd191dd5f9c77fdff4 [Config] [patched] passed [Log]
[KASAN] Boot test: Patched f4c50a4034e62ab75f1d5cdd191dd5f9c77fdff4 [Config] [patched] passed [Log]
[KASAN] Fuzz f4c50a4034e62ab75f1d5cdd191dd5f9c77fdff4 [Config] f4c50a4034e62ab75f1d5cdd191dd5f9c77fdff4 [Config] [patched] passed [Log] [Artifacts]