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Thu, 13 Nov 2025 16:57:47 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id xlmkBwsOFmlTOAAAD6G6ig (envelope-from ); Thu, 13 Nov 2025 16:57:47 +0000 Date: Thu, 13 Nov 2025 17:57:45 +0100 From: Jean Delvare To: "David Hildenbrand (Red Hat)" Cc: linux-mm@kvack.org, LKML Subject: Re: [PATCH] mm/cma: Remove CONFIG_CMA_SYSFS option Message-ID: <20251113175745.2e29afe7@endymion> In-Reply-To: <73552a22-c7c8-4106-949e-471b9a7bbc87@kernel.org> References: <20251113145636.731a24e4@endymion> <73552a22-c7c8-4106-949e-471b9a7bbc87@kernel.org> Organization: SUSE Linux X-Mailer: Claws Mail 4.2.0 (GTK 3.24.43; x86_64-suse-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Action: no action X-Rspamd-Queue-Id: E88F940011 X-Rspamd-Server: rspam07 X-Stat-Signature: kj5uwqznkmib1wucwk6hd8owed6ah7oy X-Rspam-User: X-HE-Tag: 1763053069-124055 X-HE-Meta: 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 Cmi91LPe ZxJGscvmYDGakG+ZyhhLcZ6sfkXQqfe+Q2WBYzvXvObqcTFjaSmlDx8uZNJhB0LLZAFk12NaJSGeZfetsxMgJOrQOEJgEDyRFsW+0nHrb15GsoMzdcqR7r6UCLu7HpausAV7mheSfMCfbXSJdaqTdKpr0EVgz4OV2tmokNhPZFzcE7aJ2is3yVrFswLfFVAzwXK51Y31ETjbIZ4RPCoHiRps36BRgXoCoE6oEM/SPRRFtrNP+wOXRVU+Q8M3/osgES3TC58l71CSrhMnXpOCBJ+OrT2cxVod5DT+cIRP3y1RDfou4QGnx6G+G7E1r5WoPD2egAZ2oMQFvT9U6lb4gY4VbljgDtdwDwfkMB7fK55zhw9DCR4d/8REfAcxUkYAD9Vq0RZWWkOzltZRhWzXb49hlJIijdPgwLki0srdzcKOZRF72HRjwXxZ/ew== 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: List-Subscribe: List-Unsubscribe: On Thu, 13 Nov 2025 16:35:03 +0100, David Hildenbrand (Red Hat) wrote: > On 13.11.25 14:56, Jean Delvare wrote: > > The sysfs interface to CMA has a marginal runtime cost and a small > > footprint, there's no reason not to include it in all kernels where > > the dependencies are satisfied. > > > > Signed-off-by: Jean Delvare > > --- > > As discussed with David: > > https://lkml.org/lkml/2025/8/6/371 > > Thanks for the reminder, it sounded familiar but I couldn't remember > when this was discussed. > > Hoping this was properly compile-tested :) Yes of course, I build-tested with both CONFIG_SYSFS=y and CONFIG_SYSFS disabled. > Acked-by: David Hildenbrand (Red Hat) Thanks, -- Jean Delvare SUSE L3 Support