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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 v8 08/14] s390: move has_transparent_hugepage() out of THP guard
Date: Thu, 17 Sep 2026 21:45:29 -0400	[thread overview]
Message-ID: <a2c5f62c812afa5b84ef16476efc99281930c124.1789695931.git.luizcap@redhat.com> (raw)
In-Reply-To: <cover.1789695931.git.luizcap@redhat.com>

A future commit will introduce a kernel API to allow for checking if the
CPU supports PMD-sized pages. This API will be based on the
has_transparent_hugepage() implementation but will be orthogonal to THP
and therefore must work when CONFIG_TRANSPARENT_HUGEPAGE=n.

Move its definition out of the THP guard.

Signed-off-by: Luiz Capitulino <luizcap@redhat.com>
---
 arch/s390/include/asm/pgtable.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 2d5c2ab06de9..e7a2bf9636b7 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1814,13 +1814,13 @@ static inline int pmd_trans_huge(pmd_t pmd)
 {
 	return pmd_leaf(pmd);
 }
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
 #define has_transparent_hugepage has_transparent_hugepage
 static inline int has_transparent_hugepage(void)
 {
 	return cpu_has_edat1() ? 1 : 0;
 }
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
 #ifdef CONFIG_PAGE_TABLE_CHECK
 static inline bool pte_user_accessible_page(struct mm_struct *mm, unsigned long addr, pte_t pte)
-- 
2.55.0


  parent reply	other threads:[~2026-09-18  1:47 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-18  1:45 [PATCH v8 00/14] mm: thp: always enable mTHP support Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 01/14] docs: tmpfs: remove implementation detail reference Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 02/14] mm: shmem: shmem_getattr(): set blksize to highest supported THP order Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 03/14] mm: introduce pgtable_has_pmd_leaves() Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 04/14] drivers: dax: use pgtable_has_pmd_leaves() Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 05/14] drivers: nvdimm: " Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 06/14] mm: debug_vm_pgtable: " Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 07/14] mm: shmem: allow THP support determination at folio allocation time Luiz Capitulino
2026-09-18  1:45 ` Luiz Capitulino [this message]
2026-09-18  1:45 ` [PATCH v8 09/14] powerpc: move has_transparent_hugepage() out of THP guard Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 10/14] mips: " Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 11/14] x86: " Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 12/14] treewide: introduce arch_has_pmd_leaves() Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 13/14] mm: replace thp_disabled_by_hw() with pgtable_has_pmd_leaves() Luiz Capitulino
2026-09-18  1:45 ` [PATCH v8 14/14] mm: thp: always enable mTHP support Luiz Capitulino
2026-09-18  9:01   ` Baolin Wang
2026-09-18 10:37 ` [PATCH v8 00/14] " Usama Arif
2026-09-18 14:01   ` Luiz Capitulino
2026-09-18 20:23     ` David Hildenbrand (Arm)

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