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Mon, 22 Jan 2024 15:07:58 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap1.dmz-prg2.suse.org with ESMTPSA id s81AKM6ErmW9YgAAD6G6ig (envelope-from ); Mon, 22 Jan 2024 15:07:58 +0000 Date: Mon, 22 Jan 2024 16:07:57 +0100 From: Michal =?utf-8?Q?Koutn=C3=BD?= To: Waiman Long Cc: Tejun Heo , Zefan Li , Johannes Weiner , Frederic Weisbecker , Jonathan Corbet , "Paul E. McKenney" , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Davidlohr Bueso , Shuah Khan , cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, rcu@vger.kernel.org, linux-kselftest@vger.kernel.org, Mrunal Patel , Ryan Phillips , Brent Rowsell , Peter Hunt , Cestmir Kalina , Nicolas Saenz Julienne , Alex Gladkov , Marcelo Tosatti , Phil Auld , Paul Gortmaker , Daniel Bristot de Oliveira , Juri Lelli , Peter Zijlstra , Costa Shulyupin Subject: Re: [RFC PATCH 0/8] cgroup/cpuset: Support RCU_NOCB on isolated partitions Message-ID: References: <20240117163511.88173-1-longman@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="btekknw55nvxl4ky" Content-Disposition: inline In-Reply-To: <20240117163511.88173-1-longman@redhat.com> Authentication-Results: smtp-out2.suse.de; none X-Spamd-Result: default: False [-0.21 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; BAYES_HAM(-0.01)[51.13%]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TAGGED_RCPT(0.00)[]; MIME_GOOD(-0.20)[multipart/signed,text/plain]; R_RATELIMIT(0.00)[to_ip_from(RL6j1h7wxugqfdyj8pnx7tibp9)]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.com:s=susede1]; RCPT_COUNT_TWELVE(0.00)[36]; SIGNED_PGP(-2.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; MID_RHS_NOT_FQDN(0.50)[]; FREEMAIL_CC(0.00)[kernel.org,bytedance.com,cmpxchg.org,lwn.net,quicinc.com,joelfernandes.org,joshtriplett.org,gmail.com,goodmis.org,efficios.com,stgolabs.net,vger.kernel.org,redhat.com,windriver.com,infradead.org]; RCVD_TLS_ALL(0.00)[]; SUSPICIOUS_RECIPS(1.50)[] X-Spam-Level: X-Spam-Flag: NO X-Spam-Score: -0.21 --btekknw55nvxl4ky Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hello Waiman. On Wed, Jan 17, 2024 at 11:35:03AM -0500, Waiman Long wrote: > This patch series is based on the RFC patch from Frederic [1]. Instead > of offering RCU_NOCB as a separate option, it is now lumped into a > root-only cpuset.cpus.isolation_full flag that will enable all the > additional CPU isolation capabilities available for isolated partitions > if set. RCU_NOCB is just the first one to this party. Additional dynamic > CPU isolation capabilities will be added in the future. IIUC this is similar to what I suggested back in the day and you didn't consider it [1]. Do I read this right that you've changed your mind? (It's fine if you did, I'm only asking to follow the heading of cpuset controller.) Thanks, Michal [1] https://lore.kernel.org/r/58c87587-417b-1498-185f-1db6bb612c82@redhat.com/ --btekknw55nvxl4ky Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQpEWyjXuwGT2dDBqAGvrMr/1gcjgUCZa6EywAKCRAGvrMr/1gc jnziAQDeS/BPCM9qEVgM7AdJJ1sdTzQsMQ5YiQ3EnDS8nw0THQD+IlhGeiHOP8eY Fif9SqmbUs3GzGds3uUPWNBUWQDsjws= =EAx6 -----END PGP SIGNATURE----- --btekknw55nvxl4ky--