Subject Revert "tun/tap & vhost-net: apply qdisc backpressure on full ptr_ring to reduce TX drops"
Author simon.schippers@tu-dortmund.de
Date 2026-07-28 09:22:37 +0000 UTC
Version
Cc andrew@lunn.ch brett@librecast.net davem@davemloft.net edumazet@google.com eperezma@redhat.com horms@kernel.org jasowangio@gmail.com kuba@kernel.org kvm@vger.kernel.org linux-kernel@vger.kernel.org mst@redhat.com netdev@vger.kernel.org pabeni@redhat.com simon.schippers@tu-dortmund.de tim.gebauer@tu-dortmund.de virtualization@lists.linux.dev willemdebruijn.kernel@gmail.com
Patches (4)
Name Content [All]
[PATCH net 1/4] Revert "tun/tap & vhost-net: avoid ptr_ring tail-drop when a qdisc is present" [Body]
[PATCH net 2/4] Revert "ptr_ring: move free-space check into separate helper" [Body]
[PATCH net 3/4] Revert "vhost-net: wake queue of tun/tap after ptr_ring consume" [Body]
[PATCH net 4/4] Revert "tun/tap: add ptr_ring consume helper with netdev queue wakeup" [Body]
Series Summary
Passed
✓ All tests passed. No findings.
Sessions
Session 2026-07-28
Passed
ID (for dev) f1faebb5-0594-4faa-9695-0f2ce106b651
Status finished
Triaged OK [Log] [Trajectory]
Execution Log [Link]
Test Base Patched Verdict
[KASAN] Build Base b14361aca6350ff7907b0e9903c7b94dc7d5d4a0 [Config] passed [Log]
[KASAN] Boot test: Base b14361aca6350ff7907b0e9903c7b94dc7d5d4a0 [Config] passed [Log]
[KASAN] Build Patched b14361aca6350ff7907b0e9903c7b94dc7d5d4a0 [Config] [patched] passed [Log]
[KASAN] Boot test: Patched b14361aca6350ff7907b0e9903c7b94dc7d5d4a0 [Config] [patched] passed [Log]
[KASAN] Fuzz b14361aca6350ff7907b0e9903c7b94dc7d5d4a0 [Config] b14361aca6350ff7907b0e9903c7b94dc7d5d4a0 [Config] [patched] passed [Log] [Artifacts]