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Miller" , Eric Dumazet , Paolo Abeni , linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net 0/5] rxrpc: Miscellaneous fixes Message-ID: <20240507194447.20bcfb60@kernel.org> In-Reply-To: <20240503150749.1001323-1-dhowells@redhat.com> References: <20240503150749.1001323-1-dhowells@redhat.com> 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-Transfer-Encoding: 7bit On Fri, 3 May 2024 16:07:38 +0100 David Howells wrote: > Here some miscellaneous fixes for AF_RXRPC: > > (1) Fix the congestion control algorithm to start cwnd at 4 and to not cut > ssthresh when the peer cuts its rwind size. > > (2) Only transmit a single ACK for all the DATA packets glued together > into a jumbo packet to reduce the number of ACKs being generated. > > (3) Clean up the generation of flags in the protocol header when creating > a packet for transmission. This means we don't carry the old > REQUEST-ACK bit around from previous transmissions, will make it > easier to fix the MORE-PACKETS flag and make it easier to do jumbo > packet assembly in future. > > (4) Fix how the MORE-PACKETS flag is driven. We shouldn't be setting it > in sendmsg() as the packet is then queued and the bit is left in that > state, no matter how long it takes us to transmit the packet - and > will still be in that state if the packet is retransmitted. > > (5) Request an ACK on an impending transmission stall due to the app layer > not feeding us new data fast enough. If we don't request an ACK, we > may have to hold on to the packet buffers for a significant amount of > time until the receiver gets bored and sends us an ACK anyway. Looks like these got marked as Rejected in patchwork. I think either because lore is confused and attaches an exchange with DaveM from 2022 to them (?) or because I mentioned to DaveM that I'm not sure these are fixes. So let me ask - on a scale of 1 to 10, how convinced are you that these should go to Linus this week rather than being categorized as general improvements and go during the merge window (without the Fixes tags)?