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b=AHjcPwVMIAiYYEGBpfx3lHSd2/P5d+v7r7FMnMdbXBEreVOIPGcqXj/x8x37W0m+P ZoVCh7/EYXI7+v2iQWInc4bblq/Xo8qwfvYfa0MXMm2X98mvfcxxswIVe/XB08gGmU dL+I4Dg36/4j2fxy05Tw2x4jV92SNhMQ0D4hH45lRJ2oroF+b5TzxyCO8XmhdTmgTG Z4BlqIugl8mG7tgBgxAkAjF18S3fMuP7xD6i2rYKslaMD3qyHa3CrnASC8Yy7gU2ZD W93qa8MSTPadb6O3hrKYNoHZgiqXuhNtD2GcOiTJXVo4pAuiDD4ab09sYrZcuJamKI mDdnezseFomPg== From: SeongJae Park To: Ravi Jonnalagadda Cc: SeongJae Park , damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, akpm@linux-foundation.org, corbet@lwn.net, bijan311@gmail.com, ajayjoshi@micron.com, honggyu.kim@sk.com, yunjeong.mun@sk.com Subject: Re: [RFC PATCH v3 3/4] mm/damon: add node_eligible_mem_bp and node_ineligible_mem_bp goal metrics Date: Wed, 25 Feb 2026 16:57:31 -0800 Message-ID: <20260226005732.7839-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 58995100002 X-Stat-Signature: oh913uj61sgninb7tu4butrra5pb5msa X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1772067455-338904 X-HE-Meta: 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 EV/A0LRZ 4pVFNWuzkBKXxR8/RlbjDQwIW2XgOv76qIMnDRwKI/SONqAYG0BNjxGApBCYjIidWRl9PQrKxF7suo+Ucwk1+i3KgyUxKoSwA97KMQNKAvNpuM2uf5FcmRMVf7Ot/js5UM5pKewYzARYPYGQIgxi/97223ucrA1W4toNEe1uLU0AUKwiQGnBXgOgS9nayGDQpWmwWy5raEZgESIHG7yAD5uQ2d8bnZ+pmpWqEUxSob78TaYZ1OOUH+G1xz7QEm9gqEq9iZFSGh3G06oA49z4l18SZtKY7brz0GyT3eJ0hxWeV3DFQG9r22P30BYmt3QqHOXAteRkjC2PVJlHxIk5UplleR3NCZkamL1CgfIS5/D3YydDS24wpsZ4/IrRio6f03SC5p9KTxILnsi03f2JVyFxCs64RBar9/1wX Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, 25 Feb 2026 10:46:56 -0800 Ravi Jonnalagadda wrote: > On Mon, Feb 23, 2026 at 8:27 PM SeongJae Park wrote: > > > > On Mon, 23 Feb 2026 12:32:31 +0000 Ravi Jonnalagadda wrote: > > [...] > > > > So, the overall concept and definition of the new goal metrics sound good to > > me. But I'd prefer having less optimized but simpler code, and nodes boundary > > crossing regions handling. > > > > I'll prepare a v4 addressing all these points: > 1. Fix 80-column wrapping > 2. Remove eligible_bytes_per_node[] array, iterate regions per goal > instead > 3. Handle regions crossing node boundaries > 4. Pass scheme pointer from caller Thank you for flexibly accepting my suggestions and listing those again here. All looks good and catching all the points! > > I'm currently on a break and will send the updated patch after March > 10th. I hope you a great break! Thanks, SJ [...]