From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BEFC2610D for ; Fri, 23 Jun 2023 10:21:26 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F20A1715 for ; Fri, 23 Jun 2023 03:21:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1687515684; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=OeJXYDNz0Ya5c8KMAm3ynsmsenQLqIdnXaadOKfnelU=; b=ZDcLAKtkGtskXlASlPDT5YJlVUtarqEWt+dIgN6NtUSCPxsLP+G4dR7kV6/7GIpIbxwJBi 7gu9+V+AOC+WGbQPiq3VFkEsj2NG+/FOQOreWPbUjxSRMhPvzy9SQbJnWdFiOM2ckSd9u6 R/ZFxkiQ6ewE0Ulzr5Aa6YZ0Eb1xurE= Received: from mail-qk1-f200.google.com (mail-qk1-f200.google.com [209.85.222.200]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-67-pM1iyLTRMjeUYJxbvcNfDg-1; Fri, 23 Jun 2023 06:21:21 -0400 X-MC-Unique: pM1iyLTRMjeUYJxbvcNfDg-1 Received: by mail-qk1-f200.google.com with SMTP id af79cd13be357-7625940fbf3so9950285a.0 for ; Fri, 23 Jun 2023 03:21:21 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687515681; x=1690107681; h=mime-version:user-agent:content-transfer-encoding:references :in-reply-to:date:cc:to:from:subject:message-id:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=OeJXYDNz0Ya5c8KMAm3ynsmsenQLqIdnXaadOKfnelU=; b=gH3aPYvAFZhfnTE5YoTz3Kv8GeZLQlXiSFHMc5syRvL/KYauvUGn3QWsNe09F2o3wf Tfnf+AWn+qcnqgKPbO4lqOKQd44Q+gy7G0VCF6gl9Oag+m0BQG5Dsn4ETcajJoRqLIhd gx2BLtkVP2HFXkUBN3xC5YMmwRJ0l9hOBx2mqubZRaoKyBXYwapqWvJdsK1xqu1HMKSE pVfMnHXLIHKMt+MJNL+Hq81BfcwHmqH9754VqAN1Dp9Bk4HVFFuzQ6XyCU1VVfUJkMHh ioYtFuGIQQ8ZRHsLsKEJL921yT9wVd+qepJ8IHC3uCHHbNEtUoieOFxMAicxDBqGyAo7 wJIQ== X-Gm-Message-State: AC+VfDwUe6tHLx5pJf8vW2/x37qyzsTKGupghjjSTQIWN96IEWlCuuIz XAMq+9ep9MkwZjgbUe/2zCf0JIhiXhShaqhRXp4+/+/68o9TLl+HJ5GtFpV+fSGQV7FXw1Js5Y2 rV2KCGuLXVRvLrwIT X-Received: by 2002:a05:6214:401a:b0:62d:eda3:4333 with SMTP id kd26-20020a056214401a00b0062deda34333mr24730660qvb.0.1687515681000; Fri, 23 Jun 2023 03:21:21 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ6GxEMCHUc8rROPzQ+6vAoGuDCswIguG8uTkvkLs5Wjm+76AjXJxAgdJPe/v4Nwk/b4qpXo1w== X-Received: by 2002:a05:6214:401a:b0:62d:eda3:4333 with SMTP id kd26-20020a056214401a00b0062deda34333mr24730644qvb.0.1687515680708; Fri, 23 Jun 2023 03:21:20 -0700 (PDT) Received: from gerbillo.redhat.com (146-241-231-243.dyn.eolo.it. [146.241.231.243]) by smtp.gmail.com with ESMTPSA id v14-20020a0cdd8e000000b005dd8b9345b9sm4898755qvk.81.2023.06.23.03.21.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Jun 2023 03:21:20 -0700 (PDT) Message-ID: Subject: Re: [PATCH net-next v3 01/18] net: Copy slab data for sendmsg(MSG_SPLICE_PAGES) From: Paolo Abeni To: David Howells Cc: Jakub Kicinski , Eric Dumazet , netdev@vger.kernel.org, Alexander Duyck , "David S. Miller" , Willem de Bruijn , David Ahern , Matthew Wilcox , Jens Axboe , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Menglong Dong Date: Fri, 23 Jun 2023 12:21:16 +0200 In-Reply-To: <2048548.1687514811@warthog.procyon.org.uk> References: <20230622191134.54d5cb0b@kernel.org> <20230622132835.3c4e38ea@kernel.org> <20230622111234.23aadd87@kernel.org> <20230620145338.1300897-1-dhowells@redhat.com> <20230620145338.1300897-2-dhowells@redhat.com> <1952674.1687462843@warthog.procyon.org.uk> <1958077.1687474471@warthog.procyon.org.uk> <1969749.1687511298@warthog.procyon.org.uk> <2048548.1687514811@warthog.procyon.org.uk> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.46.4 (3.46.4-1.fc37) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net On Fri, 2023-06-23 at 11:06 +0100, David Howells wrote: > Paolo Abeni wrote: >=20 > > I'm unsure I follow the above ?!? I *thought* sendpage could be killed > > even without patch 1/18 and 2/18, leaving some patches in this series > > unmodified, and mangling those explicitly leveraging 1/18 to use > > multiple sendmsg()s with different flags? >=20 > That's what I meant. >=20 > With the example, I was showing the minimum needed replacement for a call= to > sendpage. Thank LGTM! Thanks, Paolo