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Mon, 12 Oct 2026 05:37:34 -0700 (PDT) Date: Mon, 12 Oct 2026 14:37:32 +0200 From: Michal =?utf-8?Q?Koutn=C3=BD?= To: Karl Mehltretter Cc: Tejun Heo , Johannes Weiner , Li Zefan , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] cgroup: Avoid warning when procfs is disabled Message-ID: <20261012-robin-handclasp-417c1263d268@there> References: <20261012054219.13365-1-kmehltretter@gmail.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="sxhfuelmz2jajvtk" Content-Disposition: inline In-Reply-To: <20261012054219.13365-1-kmehltretter@gmail.com> --sxhfuelmz2jajvtk Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH] cgroup: Avoid warning when procfs is disabled MIME-Version: 1.0 On Mon, Oct 12, 2026 at 07:42:19AM +0200, Karl Mehltretter wrote: > With CGROUPS=3Dy and PROC_FS=3Dn, What is practical about this config? Is it real life usage? > proc_create_single() returns NULL and > cgroup initialization warns during every boot. >=20 > Only check creation of /proc/cgroups when procfs is enabled. The dependency on CONFIG_PROC_FS is encoded in the proc_create_single already, it's unfortunate that it returns a value that signifies an error. I'd prefer more generic fix that doesn't target cgroup_init() specifically. Thanks, Michal --sxhfuelmz2jajvtk Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iJEEABYKADkWIQRCE24Fn/AcRjnLivR+PQLnlNv4CAUCaszUiBsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQfj0C55Tb+AgyPQD+JF1ALjKHhvCZgZTHWKpt px7gEmaDUfg16vcP3hhQmeYBANL7rIcu2f2MPAKqn5Rlx5g0zUpusN84McLyxckt nFMK =qrjq -----END PGP SIGNATURE----- --sxhfuelmz2jajvtk--