From nobody Thu Apr 9 10:32:13 2026 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 46C9133A9D6 for ; Wed, 8 Apr 2026 20:26:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775679967; cv=none; b=oqxozpJtksgDS9v+39BXf0opfKuvLLiqqXLCJQIM89K1swQHE9UHAfUM/CU+Gkk/svNj7LnmaZ71vXH8BWz7rEDAaus6Bd4lMXhj1WCz/s5CXqKQKJ4ozvfYndB3lExghm2ZRiGNmKGiIYIJQbqxV8pH/niD2YdmfRdhy6NfP94= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775679967; c=relaxed/simple; bh=8OOXRsh6icF1s+Qw85I/0fWIl3fhaJ0yvKsKG9RB43Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hPSvlEi74qK9B1pJNCTd/+BDSOuLEwBQz+ZNYww3XOhFbgZb+jdxAJpIKwEV5xlJgjAXsS6IhleAPIViX0R3l6G9yUmFb4tLfY+B0E8fEAEm27f/2CUVIRnzqCIKPwgGM4JTZ71aT21xrvZ+BHSQLo4VtA3Kw5Y3unvMs6xxUeg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=KJzRcB+k; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="KJzRcB+k" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1775679965; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TBg+N1vPihTVzt5Os9wJA+I+ybP1ihgxx5kCeaXYvp0=; b=KJzRcB+kT7s+qp3ifb+jbqSkAwwg5Lf6EGDP+p2NxVRozRz+nCmRX1nUpVmJl63Oda3GST 6NpORY4GTMg9UZ+43TxviuevYZf/Mbtbdzvy737NcD1OSUW/LjkKrYXPwo2CtsBE2q7AkK 3K3E/ClTDMspdRTAbG7d9Y7Xjxb3U/w= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-146-7scCV4SDNpGdAdTAdm9izg-1; Wed, 08 Apr 2026 16:23:25 -0400 X-MC-Unique: 7scCV4SDNpGdAdTAdm9izg-1 X-Mimecast-MFC-AGG-ID: 7scCV4SDNpGdAdTAdm9izg_1775679801 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 7558C1956050; Wed, 8 Apr 2026 20:23:21 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.22.88.140]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 59F8B180036E; Wed, 8 Apr 2026 20:23:20 +0000 (UTC) From: Luiz Capitulino To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, david@kernel.org, baolin.wang@linux.alibaba.com Cc: ryan.roberts@arm.com, akpm@linux-foundation.org, lorenzo.stoakes@oracle.com Subject: [PATCH v3 04/10] drivers: nvdimm: use pgtable_has_pmd_leaves() Date: Wed, 8 Apr 2026 16:22:59 -0400 Message-ID: <0309be4a7133ba8d043380f0c3614af764f6e3c9.1775679721.git.luizcap@redhat.com> In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Content-Type: text/plain; charset="utf-8" nd_pfn_supported_alignments() and nd_pfn_default_alignment() use has_transparent_hugepage() to check if THP is supported with PMD-sized pages. Use pgtable_has_pmd_leaves() instead. Also, check for IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) to preserve the current implementation semantics. Signed-off-by: Luiz Capitulino --- drivers/nvdimm/pfn_devs.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c index 8fa9c16aba7e..457eb54e7ab6 100644 --- a/drivers/nvdimm/pfn_devs.c +++ b/drivers/nvdimm/pfn_devs.c @@ -94,7 +94,8 @@ static unsigned long *nd_pfn_supported_alignments(unsigne= d long *alignments) =20 alignments[0] =3D PAGE_SIZE; =20 - if (has_transparent_hugepage()) { + if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && + pgtable_has_pmd_leaves()) { alignments[1] =3D HPAGE_PMD_SIZE; if (has_transparent_pud_hugepage()) alignments[2] =3D HPAGE_PUD_SIZE; @@ -109,7 +110,8 @@ static unsigned long *nd_pfn_supported_alignments(unsig= ned long *alignments) static unsigned long nd_pfn_default_alignment(void) { =20 - if (has_transparent_hugepage()) + if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && + pgtable_has_pmd_leaves()) return HPAGE_PMD_SIZE; return PAGE_SIZE; } --=20 2.53.0