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[96.67.55.147]) by mx.google.com with ESMTPS id q126si14271124vka.2.2019.07.29.08.29.42 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 29 Jul 2019 08:29:42 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of riel@shelob.surriel.com designates 96.67.55.147 as permitted sender) client-ip=96.67.55.147; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of riel@shelob.surriel.com designates 96.67.55.147 as permitted sender) smtp.mailfrom=riel@shelob.surriel.com 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: --=-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--