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Mon, 9 Feb 2026 22:14:52 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.22.65.66]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 807B018003F6; Mon, 9 Feb 2026 22:14:51 +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 v2 05/11] drivers: nvdimm: use pgtable_has_pmd_leaves() Date: Mon, 9 Feb 2026 17:14:27 -0500 Message-ID: <3142e595b73685be8bf4a4657fdf10b28377acb8.1770675272.git.luizcap@redhat.com> In-Reply-To: References: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 X-Mimecast-MFC-PROC-ID: 7yDy3l2_27DXl-FjcrX1eraa2oUjT-LEf7HUlzKXQas_1770675292 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspam-User: X-Rspamd-Queue-Id: BD43014000F X-Rspamd-Server: rspam07 X-Stat-Signature: tnrm8rotf8ahmti67xao8dksx8psgnxw X-HE-Tag: 1770675297-7060 X-HE-Meta: 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 9EBnKqU6 uQTHdWI7I6Q1WG9NsoI3uU2KNEq3faMfUjQJNfh5mxCjFPQoyPNrQ0HnccFdNKnvkhO2+vK+sr4XEvc/A1uMpwJJ1RN+We81sYMNPnmkjjNbfOm1IN+08lD5GaF2SB+yyMd16uHt4MN6RHCxhamGwZ8hsiWAmQ1wsLrTRmLBTqW1OxKM82Pu7JPPHdstotlG1Zyb59pnmeecy2FITq8BGbkxNl8wCz19kzEhoq/q976sjNPY+mrFaVaEB3jtuD6Mh6o2VoNjSDdFytTopgE20Po9aOEnF4NNC0WTamENTcaEBH2ofzXpgkzmOV/UMOerxHGCltNZ1TXQ8OjxhSvzikdD9uiF/05IqwguHKmyiTHvoVg5DtWmLClTgrBvB2+GXxss1 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: nd_pfn_supported_alignments() and nd_pfn_default_alignment() use has_transparent_hugepage() to check if THP is supported with PMD-sized pages. However, has_transparent_hugepage() is being replaced by an API that has clearer semantics. Thus, replace has_transparent_hugepage() usage in both functions with pgtable_has_pmd_leaves() and a check for IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE), this makes the intent of the check very clear. 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 42b172fc5576..7ee8ec50e72d 100644 --- a/drivers/nvdimm/pfn_devs.c +++ b/drivers/nvdimm/pfn_devs.c @@ -94,7 +94,8 @@ static unsigned long *nd_pfn_supported_alignments(unsigned long *alignments) alignments[0] = PAGE_SIZE; - if (has_transparent_hugepage()) { + if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && + pgtable_has_pmd_leaves()) { alignments[1] = HPAGE_PMD_SIZE; if (has_transparent_pud_hugepage()) alignments[2] = HPAGE_PUD_SIZE; @@ -109,7 +110,8 @@ static unsigned long *nd_pfn_supported_alignments(unsigned long *alignments) static unsigned long nd_pfn_default_alignment(void) { - if (has_transparent_hugepage()) + if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && + pgtable_has_pmd_leaves()) return HPAGE_PMD_SIZE; return PAGE_SIZE; } -- 2.53.0