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Mon, 24 Aug 2026 06:18:56 -0700 (PDT) Date: Mon, 24 Aug 2026 15:18:54 +0200 From: Michal =?utf-8?Q?Koutn=C3=BD?= To: Eric Chanudet Cc: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Tejun Heo , Johannes Weiner , Jonathan Corbet , Shuah Khan , Michal Hocko , Roman Gushchin , Shakeel Butt , Muchun Song , Shuah Khan , linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, Maxime Ripard , Albert Esteve Subject: Re: [PATCH 00/11] mm/cma: charge cma allocation to memcg using per area counters Message-ID: References: <20260821-cma-memcg-regions-v1-0-d21b165b8440@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="4jd5dcmb4dfal7fx" Content-Disposition: inline In-Reply-To: <20260821-cma-memcg-regions-v1-0-d21b165b8440@redhat.com> X-Rspam-User: X-Stat-Signature: fayd63e3jqcy71whyewqaicgornxd6tj X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: AD6DF4000B X-HE-Tag: 1787577538-250046 X-HE-Meta: U2FsdGVkX19emaV8Pw4v85zTB2fHv5Js/mg/GQJFP/qOdzlRC/lvsWfv04qi4ptmKPGnbu/8FOaVYdlj2BO5lyYwa2+6dukYGsPwNCYgBUe2z3mvj/YDpzJGiImokNYScelvVqf56tiFGitJfI5ivcudY1JVCibNijZJhlteZhF01p1cQWSs3Xfco6tu1AiCVZ3fY6TjjBr16mutApnH5+WrNMH/gQqMzpb/gV/MgKBqqWuk3P6mOBLwTvPkbBj44C8JteWnPKuv5UroAa6H2MXbgmaWsIIWxzLsI2qbS5bAEd9IoEwSVJSMmo321VdY9y9dHINDBfWasheF3Jmuv5Y5kqHdNb6VZuym/ms0qsIulHJwySEvmMb9xYasVEzvxHM8F00X6VU2jIyEPorGwD2J2jWmft56dIIKKUAjwITqhfiispPmD2E5nSwU5AV84vVrgrYPTzEGxgbV+EBGraVt4xVhSwbziPx1QclJHjI86M6BEpSJiXNm4dmxRwPnhvyTYL7u+xpkjjwUu74YX9Oea12tfxtVKyRve6bdse/6Jppb8vsmRIL3+Wj/4baeW1QkYC35+MhPJV/FT3jdV+ltgl/bmiWW4HDPYkz22Aq08YX8IQ5dLeuYVtrmtU8SBrwKNkYtGoGGh0jwYp1OO7xCUCWAidld9jtZGsD/b5yunlYFMbbFVXA3hGLM+zDjVaVnCVUKNuUYsUJgciqAKw2mkbIokHFSY+W8jd1Jgq/QPKfn1mEVXvbhiiI/biG4Lq9vpKeSe20Aw9aUAiR0tcxnwHx9f64o3czeODZ33eRa48dlsJaScsZjEeUmqMU43/CZqrSln1jXELoNaRzUugXw4FIh8xO5z3V/2E7tWokp6jgd4jCe8mtSxt2+o3ptgcuImGXk0xzfZin1oB3QJ5FgLwhfpPzonAsbvhIXDGPdJk3wxM/0Npn9X1JjOXWEotTnWFBVMTaFlyAwueM y7wMPufX G+dP7KaXa3ZHr2iiI2pxLWs0ocNLriRb3VRFPWeEg6DsVzuLPMhRFiOhjBScyE3RLex+hZeFWPuJrIYa/2ssPTwiwznKZsHx8Hzj9rPY3AYBeT7D+/I8D8Y7mrGDQ/5nJmpRmFy/ccWzdBCHLnLAHCjtznK40V5IwlEIvF15zVyQZ35x9zkhprpDtoXLcq43kjXsqugZ4994OE17kpPqvAhUsfD9ilwiOHBMtbQENZP5uDW0ZDaxnov6VIW0Rk1xyGBMnICSaSFieUWKiOLRe0xNfoOgg0kJN6SAzcKpujgnZbEVkwjMkl0pkoDSPGuEXdATG1W7qFtuaMqTTwl50vUm4XWyS5Cumjc71PHm0Yh1lu0U+CpSDMhXx8s05GNVS60QBBcm6osQnsluZW6DDctY/40Bl7N4MAUoi4SSDRwRThVxT+yshpyr01UWnCUjWYSpv4hV2Trj5sCHB6JMDhlEW4w== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: --4jd5dcmb4dfal7fx Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Subject: Re: [PATCH 00/11] mm/cma: charge cma allocation to memcg using per area counters MIME-Version: 1.0 Hi Eric. On Fri, Aug 21, 2026 at 02:56:52PM -0400, Eric Chanudet wrote: > Finally register the per-area usage counters in the cgroupfs. Each CMA > area creates a memory.cma..{current,max} pair for reporting and > limitation for each area. These areas quite resemble dmem regions. What is the relation to the previous dmem double-charging [1]? (Successor, alternative,...) Thanks, Michal --4jd5dcmb4dfal7fx Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iJEEABYKADkWIQRCE24Fn/AcRjnLivR+PQLnlNv4CAUCaoxEuhsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQfj0C55Tb+Ai6WwEAt6IhJ1j5eKMrYIQuXx6H vcVhIKJYy4uCLIiKXOf6/zMA/jVVm1UxH8BKR0Myu49nuRzoWqbLCU9ie1WLGOPG nZIA =+xTm -----END PGP SIGNATURE----- --4jd5dcmb4dfal7fx--