From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=95.215.58.180 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794203313; b=oKiN97sLX4oLUdL004Lec7MpE1SYi8X20hold/tS1SGQeuKY8hBNOcZ3sv5QgCtBrsXo AUNL5gZpH272r44N12mbspm/+VndC0WZKCAY3LUjBDpAawhCD0/9WySUQL/3kKmbzzVbB M+HrkBbRn1YpCu+049nMSXts7jFrSh8ZkWQN/EfTOndB4q97NVFNYaR8EPR3qj0Gd3MlU 4vIK8dLkqZHrFi1zY/XJETSzZIyLFSDJ+FJiJwcb/mKCdWa2h+9m6rl5fereMwXd7OWf8 JZC8oepqiCMP7ENEJb208wF22pgd840PKk3M5ATDGq/tUIUQbapBuvSyNAf037OLGaQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794203313; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:From:To:Cc:Subject:Date:Message-ID: X-Mailer:In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding; bh=JSOyM4K5zrqmDFF61CwIn14s5ShEHbu2alo+0Cxugro=; b=WiP8RTYkUVyPrVuAWURRK9N7jGeEZ5E12CqFdMqQs/zBLLh4DFd1uFu0c4Ed7nbB60M7 I1pi/rmmqSP+1LruXn6S/gAotAPYNoP0I6kV7QLWxmrPHBl6tP5TpKiuEroVKvUYjaBvZ tIhmLm4kXOzMhp1vO5jsHBFxPxA2iI7tQsjNKkZufZcY9+ET5nK2hmOaxvKraY4yptS0T jSX3WcMhjGFpaXJL7jD/p60ssg7fBXVJQABljpX3gBEyOX2g2hbbLgkOjUinujx11Qejk sblSsgu+B3QqPG5bnriUhfJgNBkq1C5rKCRW4RzOZj5O+8iQJbcW5rs2Y0W3eLp3OJw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=MMq0OsFY; arc=none smtp.remote-ip=95.215.58.180 Received: from mta1.migadu.com (out-180.mta1.migadu.com [95.215.58.180]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EB5BA606A321 for ; Mon, 9 Nov 2026 05:48:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org EB5BA606A321 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=MMq0OsFY X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=JSOyM4K5zrqmDFF61CwIn14s5ShEHbu2alo+0Cxugro=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1794203309; v=1; x=1794808109; b=MMq0OsFYOeDFfLKeanMq/JRW5emG22N+JN82VeucMQQPT+M2lExIrVamS+c7q+asXdJ1pdl2 1X0kSw1FOEdPQI/obnIvW1WVZJsWlAMtC3SyfA526L1kdBXP241tfsR5N7B2uuz87yZGgwPpUpd dE+PwLyiJkXRbdzGAO40uSAY= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id bae7ce2de6921a50; Mon, 09 Nov 2026 05:48:29 +0000 X-Mizu-Trace-ID: bae7ce2de6921a50 X-Migadu-Flow: FLOW_OUT From: Lance Yang To: songmuchun@bytedance.com Cc: david@kernel.org, maddy@linux.ibm.com, rppt@kernel.org, akpm@linux-foundation.org, lance.yang@linux.dev, mpe@ellerman.id.au, npiggin@gmail.com, chleroy@kernel.org, ritesh.list@gmail.com, sshegde@linux.ibm.com, osalvador@suse.de, qi.zheng@linux.dev, muchun.song@linux.dev, chenhuacai@kernel.org, kernel@xen0n.name, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, x86@kernel.org, loongarch@lists.linux.dev, linux-s390@vger.kernel.org Subject: Re: [PATCH v3 4/5] mm/sparse-vmemmap: drop vmemmap_can_optimize() Date: Mon, 9 Nov 2026 13:48:23 +0800 Message-ID: <20261109054823.45056-1-lance.yang@linux.dev> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20261107043122.25650-5-songmuchun@bytedance.com> References: <20261107043122.25650-5-songmuchun@bytedance.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On Sat, Nov 07, 2026 at 12:31:21PM +0800, Muchun Song wrote: >section_vmemmap_optimizable() can already decide whether a section uses >vmemmap optimization based on the section compound order. The DAX-specific >vmemmap_can_optimize() helper duplicates that policy, so remove it to >simplify the code. > >Signed-off-by: Muchun Song >--- With the arch fallbacks handled by the previous patches, we can just drop vmemmap_can_optimize() now ;) Nothing jumped out at me, so: Reviewed-by: Lance Yang