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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 CC33EC7618B for ; Mon, 29 Jul 2019 15:29:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ADDEB2171F for ; Mon, 29 Jul 2019 15:29:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388051AbfG2P3m (ORCPT ); Mon, 29 Jul 2019 11:29:42 -0400 Received: from shelob.surriel.com ([96.67.55.147]:60516 "EHLO shelob.surriel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387925AbfG2P3m (ORCPT ); Mon, 29 Jul 2019 11:29:42 -0400 Received: from imladris.surriel.com ([96.67.55.152]) by shelob.surriel.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1hs7an-0005ym-DC; Mon, 29 Jul 2019 11:29:41 -0400 Message-ID: <5335b83c3371242f75abb6c92b40c665bb8f9ce3.camel@surriel.com> Subject: Re: [PATCH] sched: Clean up active_mm reference counting From: Rik van Riel To: Peter Zijlstra , Waiman Long Cc: Ingo Molnar , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Phil Auld , luto@kernel.org, mathieu.desnoyers@efficios.com Date: Mon, 29 Jul 2019 11:29:41 -0400 In-Reply-To: <20190729142450.GE31425@hirez.programming.kicks-ass.net> References: <20190727171047.31610-1-longman@redhat.com> <20190729085235.GT31381@hirez.programming.kicks-ass.net> <20190729142450.GE31425@hirez.programming.kicks-ass.net> Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-xhoRZta1p4CDAjhhG3pf" User-Agent: Evolution 3.30.5 (3.30.5-1.fc29) MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-xhoRZta1p4CDAjhhG3pf Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, 2019-07-29 at 16:24 +0200, Peter Zijlstra wrote: > Subject: sched: Clean up active_mm reference counting > From: Peter Zijlstra > Date: Mon Jul 29 16:05:15 CEST 2019 >=20 > The current active_mm reference counting is confusing and sub- > optimal. >=20 > Rewrite the code to explicitly consider the 4 separate cases: >=20 Reviewed-by: Rik van Riel --=20 All Rights Reversed. --=-xhoRZta1p4CDAjhhG3pf Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEKR73pCCtJ5Xj3yADznnekoTE3oMFAl0/EOUACgkQznnekoTE 3oOjJwf/ajhjMXP9koUzmYeZd95QTTdo4qKU1rTnCPbOw2EJeuQ1PO+XoaWfG9jI xK4Mf1ns4ypSWTut3wV3PCsi/RjWQNnbSBsEwPPVrmhivjFwWSY8GfQ6cDNnNASA UGOd7rBvuGaDp6oJCfLHQz9lRLaJI47EHZuK28IvnWbjMY7aQyRMBnV58y0hAhoQ HjAoSz2I4M/w37q94IVKYPKGuU+I+/g5zK6ZaY4PrBkw7hatv/yoUt6y3KoglFZY APK3yTvtCwQQFNYdLMAXyJswmHeiLgOn/5c99NZjxU2nPv/OQ2kuO+NaXo0Cq4ac izDJuwuoYNuCP/XfZNMLVQz5Inafxw== =jzZW -----END PGP SIGNATURE----- --=-xhoRZta1p4CDAjhhG3pf--