linux-kernel - [RFC 05/10] drivers: nvdimm: use pgtable_has_pmd

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Message-ID: <ebf1b2e8e16e7bca4e2ae9b1f995f314a4697a34.1762464515.git.luizcap@redhat.com>
Date: Thu,  6 Nov 2025 16:28:52 -0500
From: Luiz Capitulino <luizcap@...hat.com>
To: david@...nel.org,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Cc: ryan.roberts@....com,
	akpm@...ux-foundation.org,
	lorenzo.stoakes@...cle.com
Subject: [RFC 05/10] drivers: nvdimm: use pgtable_has_pmd_leaves()

nd_pfn_supported_alignments() and nd_pfn_supported_alignments() use
has_transparent_hugepage() to check if PMD-sized pages are supported,
use pgtable_has_pmd_leaves() instead.

Signed-off-by: Luiz Capitulino <luizcap@...hat.com>
---
 drivers/nvdimm/pfn_devs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
index 42b172fc5576..989f87f07e0c 100644
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -94,7 +94,7 @@ static unsigned long *nd_pfn_supported_alignments(unsigned long *alignments)
 
 	alignments[0] = PAGE_SIZE;
 
-	if (has_transparent_hugepage()) {
+	if (pgtable_has_pmd_leaves()) {
 		alignments[1] = HPAGE_PMD_SIZE;
 		if (has_transparent_pud_hugepage())
 			alignments[2] = HPAGE_PUD_SIZE;
@@ -109,7 +109,7 @@ static unsigned long *nd_pfn_supported_alignments(unsigned long *alignments)
 static unsigned long nd_pfn_default_alignment(void)
 {
 
-	if (has_transparent_hugepage())
+	if (pgtable_has_pmd_leaves())
 		return HPAGE_PMD_SIZE;
 	return PAGE_SIZE;
 }
-- 
2.51.1