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[80.230.37.66]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-495653bfabesm141254965e9.10.2026.07.22.01.09.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 22 Jul 2026 01:09:28 -0700 (PDT) Date: Wed, 22 Jul 2026 04:09:25 -0400 From: "Michael S. Tsirkin" To: Simon Schippers Cc: Jakub Kicinski , Willem de Bruijn , Jason Wang , "David S . Miller" , Eric Dumazet , Paolo Abeni , netdev@vger.kernel.org, Simon Horman , Jonathan Corbet , Shuah Khan , Andrew Lunn , Tim Gebauer , Brett Sheffield , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net v3] tun/tap & vhost-net: make qdisc backpressure opt-in via IFF_BACKPRESSURE Message-ID: <20260722040722-mutt-send-email-mst@kernel.org> References: <20260709095511.168235-1-simon.schippers@tu-dortmund.de> <20260714092506-mutt-send-email-mst@kernel.org> <5016ae84-7049-4a5f-91c9-ba0047b06ee3@tu-dortmund.de> <5089fc5e-2fb8-41fb-9aab-42b22cc2c201@tu-dortmund.de> <20260721105853-mutt-send-email-mst@kernel.org> <20260721100715.5b43412d@kernel.org> <20260722020611-mutt-send-email-mst@kernel.org> <8814700c-7549-4d12-b657-c990dfeec14f@tu-dortmund.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8814700c-7549-4d12-b657-c990dfeec14f@tu-dortmund.de> On Wed, Jul 22, 2026 at 08:39:38AM +0200, Simon Schippers wrote: > On 7/22/26 08:07, Michael S. Tsirkin wrote: > > On Tue, Jul 21, 2026 at 10:07:15AM -0700, Jakub Kicinski wrote: > >> On Tue, 21 Jul 2026 10:59:52 -0400 Michael S. Tsirkin wrote: > >>>>> I prefer applying it, but you maintainers must decide that. > >>>> > >>>> Hi, > >>>> just a gentle ping. > >>>> Has there been any decision on this patch? > >>> > >>> Hi netdev maintainers. Given there's a perf regression otherwise, > >>> we should either take this or revert the original and reapply > >>> in next. > >> > >> Revert, please. We were AFK and are now working thru a backlog > >> of 1k patches. The new IFF_* flag needs scrutiny we can't afford > >> at present. > > > > okay. Simon can you post it pls or should I? And once merged post > > re-apply for next with the flag included? > > > > Thanks! > > > > Would be great if you could do the revert. > I don't want to mess it up. :P > > For the re-apply: > I can post a v13 to net-next soon with the flag included > into the existing commits. > Or would you rather take v12 plus this opt-in commit as-is? > > Thanks! jacub if the revert goes into next what is the process to target a patch on top of it for net-next? Thanks!