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From: Roman Gushchin To: Shakeel Butt Cc: Andrew Morton , Johannes Weiner , Michal Hocko , Muchun Song , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Meta kernel team , cgroups@vger.kernel.org, Matthew Wilcox Subject: Re: [PATCH] memcg: replace memcg ID idr with xarray Message-ID: References: <20240809172618.2946790-1-shakeel.butt@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240809172618.2946790-1-shakeel.butt@linux.dev> X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Queue-Id: 82475160019 X-Rspamd-Server: rspam01 X-Stat-Signature: resu3gxzje43dhdqioqxktk9yz5sqnnz X-HE-Tag: 1723225229-405537 X-HE-Meta: U2FsdGVkX18je3/QLxOb3pH4SCb6RArEPWdNluXtADsQmOPWLXVMGP4I3wQYBHyaRhm24tXfHz8rWajX6BMo5v5IHo53x8Lke8HqdQRbP1cBeg+t802jvq3TNNcEGhf0Z/vVLXLQqmCYqmxfl/BDeY15aL/bCVctar6DrVaBCZOQFXIbncFo6C+WIl2iIAwNNoj+1kKfTQK3gqm/YZ8fukgdUOl6YMwmDNnqHCoE8LBLSCLniRpRimAaK3K2s0MPXBlGKpDBsvYHZo/GQHi7GkNpXpnDAF+w8CasUh2h63fqJqEgEwTX+dhb9AIqf43PT7D5owMM07+6282cPAWJ9Izx5bFW11BIUo6mCwzIAVF8fkv+iLVrDpsroig8AOjANWCmZZFh0oDPNAxWbNp3+gNcDTFb5i+YmodAQ5q02lk/VAJin4hI0mt5oMebxksUgjn0hQbszWOZWiiHTOzjOMJHH2L8KwW+QPsruopsRlkBM6rzJVuPoQKK6Qlnmw0uJLt52eKp9kcC2HDNvHbL0qLM0t3itqO1TDnfEXQ3fUOILzM5cVbH5piGbLYiLE0l3awsJ1Lc7bV6rLh8oHW4kJ4VUlGO6N5Ez3mvcruQ0eSweyQMjtF5Gi4lGzGBNYnHsQdxjaaWJ/ShKxEPzwupzIA+CEHK4yjDGt5m2tyrna2SGfrxaBLvsRW+cbm+B39GXgvosCvVUrs3ZN0ir/JfCb+B4sbFVr74VfsJLMf6O8VM8/W/9QGQuZraBV6TWoSRGRxrJpYrh3LM/xaJDXrv+lo8KNfmPlMh+GYpZeW8HqMg0Zmkm4YVPpI+ru42u4IIIsLodE5rSliC1/3DS1hkwU3jfLiP10iSM8PQVsnZf0DZdw0r2h1h3n5o78blyseRAjO1tFNqKTT6EBrNSwkXMnBHCen969AX/tF8DoK9UZWndE649GiOQg3JpaeiZ/bs4dJtfmJ8MiSTAoHEtXW NQod91Qq MyyPHIal0TJKTnjBM02Iwlj61jiNg8HQ+7OMd67WN8sL1cUCIZWX/sITsg+ttNfFHjyuCyV38WwNKEMboBImPbXUrSRl9/Hjije1m0yx8YI2ynrWbkn654mTx7hDBrVskdBVb 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 Fri, Aug 09, 2024 at 10:26:18AM -0700, Shakeel Butt wrote: > At the moment memcg IDs are managed through IDR which requires external > synchronization mechanisms and makes the allocation code a bit awkward. > Let's switch to xarray and make the code simpler. > > Suggested-by: Matthew Wilcox > Signed-off-by: Shakeel Butt Sweet! Reviewed-by: Roman Gushchin