From: Luiz Capitulino <luizcap@redhat.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
david@kernel.org, baolin.wang@linux.alibaba.com, ziy@nvidia.com,
lance.yang@linux.dev
Cc: corbet@lwn.net, tsbogend@alpha.franken.de, maddy@linux.ibm.com,
mpe@ellerman.id.au, agordeev@linux.ibm.com,
gerald.schaefer@linux.ibm.com, hca@linux.ibm.com,
gor@linux.ibm.com, x86@kernel.org, tglx@kernel.org,
mingo@redhat.com, bp@alien8.de, hughd@google.com,
dave.hansen@linux.intel.com, djbw@kernel.org,
vishal.l.verma@intel.com, dave.jiang@intel.com,
akpm@linux-foundation.org, yintirui@huawei.com, dev.jain@arm.com,
usama.arif@linux.dev
Subject: [PATCH v7 06/14] mm: debug_vm_pgtable: use pgtable_has_pmd_leaves()
Date: Mon, 31 Aug 2026 23:12:10 -0400 [thread overview]
Message-ID: <23277327a26a0bcdc6efab1f699d266bbe729cbd.1788232334.git.luizcap@redhat.com> (raw)
In-Reply-To: <cover.1788232334.git.luizcap@redhat.com>
debug_vm_pgtable calls has_transparent_hugepage() in multiple places to
check if PMD-sized pages are supported, use pgtable_has_pmd_leaves()
instead.
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Luiz Capitulino <luizcap@redhat.com>
---
mm/debug_vm_pgtable.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index 2875fd22d7bb..25038b74c7bc 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -177,7 +177,7 @@ static void __init pmd_basic_tests(struct pgtable_debug_args *args, int idx)
unsigned long val = idx, *ptr = &val;
pmd_t pmd;
- if (!has_transparent_hugepage())
+ if (!pgtable_has_pmd_leaves())
return;
pr_debug("Validating PMD basic (%pGv)\n", ptr);
@@ -222,7 +222,7 @@ static void __init pmd_advanced_tests(struct pgtable_debug_args *args)
pmd_t pmd;
unsigned long vaddr = args->vaddr;
- if (!has_transparent_hugepage())
+ if (!pgtable_has_pmd_leaves())
return;
page = (args->pmd_pfn != ULONG_MAX) ? pfn_to_page(args->pmd_pfn) : NULL;
@@ -283,7 +283,7 @@ static void __init pmd_leaf_tests(struct pgtable_debug_args *args)
{
pmd_t pmd;
- if (!has_transparent_hugepage())
+ if (!pgtable_has_pmd_leaves())
return;
pr_debug("Validating PMD leaf\n");
@@ -688,7 +688,7 @@ static void __init pmd_protnone_tests(struct pgtable_debug_args *args)
if (!IS_ENABLED(CONFIG_ARCH_HAS_PTE_PROTNONE))
return;
- if (!has_transparent_hugepage())
+ if (!pgtable_has_pmd_leaves())
return;
pr_debug("Validating PMD protnone\n");
@@ -737,7 +737,7 @@ static void __init pmd_soft_dirty_tests(struct pgtable_debug_args *args)
if (!pgtable_supports_soft_dirty())
return;
- if (!has_transparent_hugepage())
+ if (!pgtable_has_pmd_leaves())
return;
pr_debug("Validating PMD soft dirty\n");
@@ -754,7 +754,7 @@ static void __init pmd_leaf_soft_dirty_tests(struct pgtable_debug_args *args)
!IS_ENABLED(CONFIG_ARCH_HAS_PMD_SOFTLEAVES))
return;
- if (!has_transparent_hugepage())
+ if (!pgtable_has_pmd_leaves())
return;
pr_debug("Validating PMD swap soft dirty\n");
@@ -825,7 +825,7 @@ static void __init pmd_softleaf_tests(struct pgtable_debug_args *args)
swp_entry_t arch_entry;
pmd_t pmd1, pmd2;
- if (!has_transparent_hugepage())
+ if (!pgtable_has_pmd_leaves())
return;
pr_debug("Validating PMD swap\n");
@@ -906,7 +906,7 @@ static void __init pmd_thp_tests(struct pgtable_debug_args *args)
{
pmd_t pmd;
- if (!has_transparent_hugepage())
+ if (!pgtable_has_pmd_leaves())
return;
pr_debug("Validating PMD based THP\n");
@@ -997,7 +997,7 @@ static void __init destroy_args(struct pgtable_debug_args *args)
}
if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) &&
- has_transparent_hugepage() &&
+ pgtable_has_pmd_leaves() &&
args->pmd_pfn != ULONG_MAX) {
debug_vm_pgtable_free_huge_page(args, args->pmd_pfn, HPAGE_PMD_ORDER);
args->pmd_pfn = ULONG_MAX;
@@ -1249,7 +1249,7 @@ static int __init init_args(struct pgtable_debug_args *args)
}
if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) &&
- has_transparent_hugepage()) {
+ pgtable_has_pmd_leaves()) {
page = debug_vm_pgtable_alloc_huge_page(args, HPAGE_PMD_ORDER);
if (page) {
args->pmd_pfn = page_to_pfn(page);
--
2.55.0
next prev parent reply other threads:[~2026-09-01 3:13 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 3:12 [PATCH v7 00/14] mm: thp: always enable mTHP support Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 01/14] docs: tmpfs: remove implementation detail reference Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 02/14] mm: shmem: shmem_getattr(): set blksize to highest supported THP order Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 03/14] mm: introduce pgtable_has_pmd_leaves() Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 04/14] drivers: dax: use pgtable_has_pmd_leaves() Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 05/14] drivers: nvdimm: " Luiz Capitulino
2026-09-01 3:12 ` Luiz Capitulino [this message]
2026-09-01 3:12 ` [PATCH v7 07/14] mm: shmem: allow THP support determination at folio allocation time Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 08/14] s390: move has_transparent_hugepage() out of THP guard Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 09/14] powerpc: " Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 10/14] mips: " Luiz Capitulino
2026-09-01 11:42 ` Lance Yang
2026-09-01 19:53 ` Luiz Capitulino
2026-09-01 22:25 ` Thomas Bogendoerfer
2026-09-02 15:12 ` Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 11/14] x86: " Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 12/14] treewide: introduce arch_has_pmd_leaves() Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 13/14] mm: replace thp_disabled_by_hw() with pgtable_has_pmd_leaves() Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 14/14] mm: thp: always enable mTHP support Luiz Capitulino
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