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=1794216050; b=ACN6wMgTRUqaZgMD0DIju9LZgVScOQq8cYOguTMF6js1i7jm3whP7X6RQZBYb59yH0y+ kunbSnfu/WnG6qmt2HTSy+55IulQZnmCn52R2xClAE3898HJtnRnN6pVNJh+PrpT9ji/n g0uFKmIaeVPAjOICineDgfaPazzbj24s9N6iHwnsFn7yGiHEdvfcG4GMZeb1iyiLk2iA5 z+WXEFhMnYorce2Hzy8ldltpHtxgmVpngHj2wb0VnE77ccKFavwkPMuGLA5fQGwdaDCaL Pb/YpqUP2ibI3jm3gCmrtRwARoid/wREStyNL2JDK/Fw9mt3aCWugchp53al26DoW/A== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794216050; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=8h0PI3x5L84bxHJWgvhwyPcSqbxezc6i6wUfYwT0/gw=; b=i7zICc73IzVshNmjwpyvSfCysv4BnfgdypM+QuMRpDNUJwV+ZxnTWl4m3ucs6cMscRDu 5zMCt19nkbMlnoSb+4nkYWV+hmV5DBt3PcznKga8OKK/DvTnexHRY8N/8IJykpFXi42Oo MkUcOzEH96LKs65C6sKKgVvGBzHtDHXmHb0XAo4KujwlIDywMqKeZEOsedMy9nM6Tic/n 5nZ/kjCQ09HHzQrpeRrhIUvaClGoh5AyHxdgyXcydpF2/716c9i6BNjXQ10GWtoi29x5b do9dbHWAtCtE1tCs+u36KGRHnun+oIrG2T1A3Y3vDigC4vvV6Oo8JullHJg6d8KvGiA== 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=PWMKq2ci; 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 AFE4E606A337; Mon, 9 Nov 2026 09:20:49 +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=PWMKq2ci Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2B8531F008A2; Mon, 9 Nov 2026 09:20:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794216049; bh=8h0PI3x5L84bxHJWgvhwyPcSqbxezc6i6wUfYwT0/gw=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=PWMKq2cik7On9nLBWZZo+q2yFr8sWXi/dqsHfAOWf5G8lTU47xEhSOhDJMI8XikaX 5m07d7IVQvL4OmfmjXbpZC1xKhl0bnPIHFCc1+GnK9lePH1J9OXffOSC3rolXJf+DP k4ocKY24KRkrPS6q7WNJrkW/H6guwGWdd1Qlf00BWCHthyiEskC+lVYU1caVCSxDJ4 8mr+TmUNdQsWrTcx+JFHlqbf5vM/T8amfu0IckZaVZKSK+i+YeSGHR/TccZjqYXArb yGxJbGTMk29VHdRtuVjfBsvlx9exyhCVwGps8u3eDDtXsofy9sTxR1LmMTyHZmh202 /IyFsFh/XTSVw== Date: Mon, 9 Nov 2026 10:20:41 +0100 From: "Oscar Salvador (SUSE)" To: Muchun Song Cc: David Hildenbrand , Madhavan Srinivasan , Mike Rapoport , Andrew Morton , Lance Yang , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Ritesh Harjani , Shrikanth Hegde , Oscar Salvador , Qi Zheng , Muchun Song , Huacai Chen , WANG Xuerui , 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() Message-ID: References: <20261107043122.25650-1-songmuchun@bytedance.com> <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=us-ascii Content-Disposition: inline In-Reply-To: <20261107043122.25650-5-songmuchun@bytedance.com> 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 Reviewed-by: Oscar Salvador (SUSE) -- Oscar Salvador SUSE Labs