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Fri, 18 Sep 2026 06:32:20 +0000 (UTC) X-Farcaster-Flow-ID: d6faa5cd-2b7e-433d-abc2-14217cad7632 Received: from EX19D001UWA001.ant.amazon.com (10.13.138.214) by EX19MTAUWA001.ant.amazon.com (10.250.64.218) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.46; Fri, 18 Sep 2026 06:32:19 +0000 Received: from dev-dsk-dipiets-1b-77b833da.eu-west-1.amazon.com (10.253.66.177) by EX19D001UWA001.ant.amazon.com (10.13.138.214) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.46; Fri, 18 Sep 2026 06:32:15 +0000 From: Salvatore Dipietro To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , Subject: Re: [PATCH v5] mm/page_alloc: avoid direct compaction for costly __GFP_NORETRY allocations Date: Fri, 18 Sep 2026 06:32:03 +0000 Message-ID: <20260918063203.2802342-1-dipiets@amazon.it> X-Mailer: git-send-email 2.50.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.253.66.177] X-ClientProxiedBy: EX19D038UWC002.ant.amazon.com (10.13.139.238) To EX19D001UWA001.ant.amazon.com (10.13.138.214) Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam04 X-Rspam-User: X-Stat-Signature: wczmhibfynbxe6kndxcsp4p7kdks338n X-Rspamd-Queue-Id: DF95A140007 X-HE-Tag: 1789713144-564637 X-HE-Meta: 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 bfkbUhvf 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Sep 15, 2026 at 04:17:00PM +0000, Johannes Weiner wrote: > It would be possible to remove the costly_order gate here and just > bail on __GFP_NORETRY. But no strong feelings. Will do, I'll drop the costly_order gate and bail on __GFP_NORETRY. Andrew, since you dropped v5 and restored v4 in mm-unstable, I'll send a v6 (v4 plus the above change) unless you'd rather have an incremental patch on top of v4. Let me know if anything else is needed on my side. Thanks, Salvatore AMAZON DEVELOPMENT CENTER ITALY SRL, viale Monte Grappa 3/5, 20124 Milano, Italia, Registro delle Imprese di Milano Monza Brianza Lodi REA n. 2504859, Capitale Sociale: 10.000 EUR i.v., Cod. Fisc. e P.IVA 10100050961, Societa con Socio Unico