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[109.81.81.112]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6a59e02a8fbsm10819638a12.13.2026.08.24.01.58.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2026 01:58:20 -0700 (PDT) Date: Mon, 24 Aug 2026 10:58:18 +0200 From: Michal Hocko To: Eric Chanudet Cc: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Tejun Heo , Johannes Weiner , Michal =?iso-8859-1?Q?Koutn=FD?= , Jonathan Corbet , Shuah Khan , 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: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260821-cma-memcg-regions-v1-0-d21b165b8440@redhat.com> X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 98ED440008 X-Stat-Signature: pxrmgo1uneaywy8psb4zjeudcpctzf7y X-Rspam-User: X-HE-Tag: 1787561902-179929 X-HE-Meta: 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 nmt7D8Eu eCVvXXSWzROPrucV7rGGNPiJtYckdIxAvgkSSkrj7d5s682a3D107+3c2esAVkC+W68malqVY+cSVzSEbWYXpGTkFh3YWU0KFCtzC3fwLFaj3xbSmy118VcIZ4VCBPYAx98W73E0BpvOE0xX4kiGHao9JtPxZIE2CqkndzP05iNBH70aMKZgqRI9B+6GVcbCO9GyuIgoTXipDxyJH+0v1TMF6PVwg20Gtl8rG4wO2pzkD07V647YbGiRiwk1yEogRbeyrTSiOcGY3l8oTxVS+X2/gPPKAkjVgoQSwUelbvLSumIjQLzpLnfA0OXR1ynQwdLLohAqdqIFeQizCW2MVaoVFeEaqzFa19D/nR8A44dxS1rA= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri 21-08-26 14:56:52, Eric Chanudet wrote: > CMA allocations are currently unaccounted for by cgroup memory > controllers. As system resources, they should fall under memcg, but CMA > areas partition the available space for different purposes and memcg > doesn't have a good representation for that. Which CMA usecases are covered by this work? It would be also great to spend more time describing usecases. -- Michal Hocko SUSE Labs