From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794640766; b=OtIfn6LzDvWLrxzraicVDCueQcwPTSMLIvpGnlV4K3GpIuyp7DCTGIygQvYhHc8U73cs fgpi8/j4J0Lq8SNNUcg65Cd8La+MMMOOCPkzFW8apGlcZWguGa60r1nm0LYN2qV4voLrN nUcOywds34njCMD6G0Fw523forX0Qq4KixWecU6uAsTbjB2ZAi2nv9OfuS/j/9JxCLopy 1h31teX4Ae7WrCppVzv+R+6vI4isACKKc1NReHHJre08hJqFIfqU5+17PGrnUrpC9DSyA W884GgbQ5zF/hvx4fnyPPk1R/3W6Q+c9RH0qMl+LxdB/Hdl0TP9zwV1X0x/1dzwoPiA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794640766; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=53F86g1+1KdF2REfEFTFGhykm2HEgV3Qa4BfWICYJIs=; b=tgW4IWbNTqmZTn5l0N/TdTF3lUtaAueUHjQEhR7Qe7jjH3NYFipmyuD2DqeORVeemP69 sSjJMJ/1WvHlm5WEjx0mQ3oe7khQn5erMxN/8KfQ0Nk73Tok7f/3burhVEyWqR9x/QA5w wQLTsbi3mNh9kWrWsfBJiLGRUac3+GgVYoZ4xLdkfrnsC1D5koh+DudB5ZR5MMzMoQR1P qMadBP3i1ekMv2LuIBJsFYlI5LApOI4VMUiwXL7MJwRxY3EHmMiH7RkXwB9UuEHFVgsv+ zSeRQFSbxAzLBmvKPlYXZd6VGXMaWtdPwpPOiP6RR5BCXJOTP9si18U2FFQBBwwr/VA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=T96Kmyy1; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3DE99606A335; Sat, 14 Nov 2026 07:19:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=T96Kmyy1 Received: by smtp.kernel.org (Postfix) with ESMTPSA id E682F1F000C5; Sat, 14 Nov 2026 07:19:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794640766; bh=53F86g1+1KdF2REfEFTFGhykm2HEgV3Qa4BfWICYJIs=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=T96Kmyy1RsaEcBN1qA2dNQ5sye4PYKQvGLL9AzCeLRZ6YCWfC2jHM5eSkHZpwH7BK J7n8/+rve+OIZ1vzYbVpi22xV1P4x38oHghXH2EPsLIfqPTS7LpnDo5ERQnXZ6eXhA Jp/RfzmwuoB2tvEeKlb6T6ybVFXnyyshAHU+UhDHFGACobYkz23iMbT933D9WjfsNY mKG4W25/H755mq7wpdRLbhT++O3UWFhS/3zxu8aniCblTx0Q3Pw/NEha46JGGn06MJ 8Mq6zM/8dTi4txFo0eCH1bNiIRDqbY5XhiH+WNKtFmOlaW7dvQywDQG4OW+coGE/mA rPEv923oOaoYQ== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH 18/22] mm/compaction: restrict compaction to common memory Reply-To: sashiko-reviews@lists.linux.dev To: =?utf-8?b?R3JlZ29yeSBQcmljZSAoTWV0YSk=?= Cc: linux-serial@vger.kernel.org, damon@lists.linux.dev In-Reply-To: <20261114070959.3490008-19-gourry@gourry.net> References: <20261114070959.3490008-1-gourry@gourry.net> <20261114070959.3490008-19-gourry@gourry.net> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Sat, 14 Nov 2026 07:19:25 +0000 X-Mailing-List: damon@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Compaction serves the ordinary allocation domain. >=20 > Restrict it to N_MEMORY_COMMON: > - start kcompactd only on common nodes, at boot and hotplug. > - walk only common zones in direct compaction and when deciding > whether more reclaim could let compaction succeed. > - compact only common nodes for /proc/sys/vm/compact_memory, > and trigger proactive compaction only on common nodes. >=20 > The fallback zonelists hold only common memory, and all memory is common > at this point, so behavior is unchanged. >=20 > Signed-off-by: Gregory Price (Meta) Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261114070959.3490= 008-1-gourry@gourry.net?part=3D18