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McKenney" To: lsf-pc@lists.linux-foundation.org Cc: linux-mm@kvack.org Subject: [LSF/MM/BPF TOPIC] Reclamation interactions with RCU Message-ID: Reply-To: paulmck@kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Queue-Id: DB81F10000A X-Rspam-User: X-Rspamd-Server: rspam11 X-Stat-Signature: 7uq5f46ymi3r1g49gthknx87t6i8k6dd X-HE-Tag: 1709060179-395754 X-HE-Meta: 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 GBsW9zl/ K+ynVITJxWGF5vdMSLZRdFlGtOrOvBumLyYPp7xgKIFBtIROkKNzVrx5OUKOr1Z8StwTIEbeg3n6ma3L5awB37LdAUWkEnWMhvxf6T7dkr6QughNmEayI391CMfv6WG+eXbY6CBds4uwZO1VVciznMBHACSrqlzrHo67bIV/d1a+75yLgJTrQQVtQPuGCaoU6ftpR2/WT3wUlMAadQ4u6nzU2XUbCFVSp809FagnyWGeXhYdWS3KMgyOnNkkX5zGtjPdz9nTB2IiRnpI= 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: Hello! Recent discussions [1] suggest that greater mutual understanding between memory reclaim on the one hand and RCU on the other might be in order. One possibility would be an open discussion. If it would help, I would be happy to describe how RCU reacts and responds to heavy load, along with some ways that RCU's reactions and responses could be enhanced if needed. Thanx, Paul [1] https://lore.kernel.org/all/fb4d944e-fde7-423b-a376-25db0b317398@paulmck-laptop/