From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5CC85C432BE for ; Wed, 28 Jul 2021 07:48:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 42DB860F9D for ; Wed, 28 Jul 2021 07:48:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234514AbhG1Hsd (ORCPT ); Wed, 28 Jul 2021 03:48:33 -0400 Received: from jabberwock.ucw.cz ([46.255.230.98]:40556 "EHLO jabberwock.ucw.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234003AbhG1Hsb (ORCPT ); Wed, 28 Jul 2021 03:48:31 -0400 Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id 8DED71C0B7C; Wed, 28 Jul 2021 09:48:29 +0200 (CEST) Date: Wed, 28 Jul 2021 09:48:28 +0200 From: Pavel Machek To: Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, =?iso-8859-1?Q?Bj=F6rn_T=F6pel?= , Daniel Borkmann , Jakub Kicinski , Sasha Levin Subject: Re: [PATCH 5.10 014/167] net: Introduce preferred busy-polling Message-ID: <20210728074828.GA28860@amd> References: <20210726153839.371771838@linuxfoundation.org> <20210726153839.841834200@linuxfoundation.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="bg08WKrSYDhXBjb5" Content-Disposition: inline In-Reply-To: <20210726153839.841834200@linuxfoundation.org> User-Agent: Mutt/1.5.23 (2014-03-12) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --bg08WKrSYDhXBjb5 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > From: Bj=F6rn T=F6pel >=20 > [ Upstream commit 7fd3253a7de6a317a0683f83739479fb880bffc8 ] >=20 > The existing busy-polling mode, enabled by the SO_BUSY_POLL socket > option or system-wide using the /proc/sys/net/core/busy_read knob, is > an opportunistic. That means that if the NAPI context is not Do we need this in -stable? It is rather long at 400 lines, and introduces new API feature, does not fix a bug. I can revert it on top of 5.10-stable, so I don't believe we have bugfix depending on it. Best regards, Pavel --=20 DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany --bg08WKrSYDhXBjb5 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAmEBC8wACgkQMOfwapXb+vI6/QCfSm725dj6X03s11p0VOo4DPRn SN4AoKIyovifQCui152lZM9+nPY9m9Vo =h5pZ -----END PGP SIGNATURE----- --bg08WKrSYDhXBjb5--