From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-mm@kvack.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
David Hildenbrand <david@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
Huacai Chen <chenhuacai@kernel.org>,
WANG Xuerui <kernel@xen0n.name>, Helge Deller <deller@gmx.de>,
loongarch@lists.linux.dev, linux-s390@vger.kernel.org,
linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] loongarch/mm: Drop all pxdp_get()
Date: Wed, 23 Sep 2026 10:02:21 +0530 [thread overview]
Message-ID: <20260923043226.331880-3-anshuman.khandual@arm.com> (raw)
In-Reply-To: <20260923043226.331880-1-anshuman.khandual@arm.com>
Current platform specific pxdp_get() helpers are exact same as the default
ones defined in the generic MM header (include/linux/pgtable.h) thus making
them redundant. Move functions that are now depending on generic helpers to
avoid build failure.
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: WANG Xuerui <kernel@xen0n.name>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: loongarch@lists.linux.dev
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
arch/loongarch/include/asm/pgtable.h | 20 ++------------------
arch/loongarch/mm/init.c | 19 +++++++++++++++++++
2 files changed, 21 insertions(+), 18 deletions(-)
diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h
index a05f6a4928dc6..b1060b86d5353 100644
--- a/arch/loongarch/include/asm/pgtable.h
+++ b/arch/loongarch/include/asm/pgtable.h
@@ -132,9 +132,6 @@ struct vm_area_struct;
#define DIRECT_MAP_PHYSMEM_END min((1ULL << (cpu_pabits + 1)) - 1, (1ULL << MAX_PHYSMEM_BITS) - 1)
#endif
-#define ptep_get(ptep) READ_ONCE(*(ptep))
-#define pmdp_get(pmdp) READ_ONCE(*(pmdp))
-
#define pte_ERROR(e) \
pr_err("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e))
#ifndef __PAGETABLE_PMD_FOLDED
@@ -378,12 +375,7 @@ static inline void set_pte(pte_t *ptep, pte_t pteval)
#endif
}
-static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
-{
- pte_t pte = ptep_get(ptep);
- pte_val(pte) &= _PAGE_GLOBAL;
- set_pte(ptep, pte);
-}
+void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
#define PGD_T_LOG2 (__builtin_ffs(sizeof(pgd_t)) - 1)
#define PMD_T_LOG2 (__builtin_ffs(sizeof(pmd_t)) - 1)
@@ -618,16 +610,8 @@ static inline pmd_t pmd_mkinvalid(pmd_t pmd)
* different prototype.
*/
#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
-static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
- unsigned long address, pmd_t *pmdp)
-{
- pmd_t old = pmdp_get(pmdp);
-
- pmd_clear(pmdp);
-
- return old;
-}
+pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm, unsigned long address, pmd_t *pmdp);
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#ifdef CONFIG_ARCH_HAS_PTE_PROTNONE
diff --git a/arch/loongarch/mm/init.c b/arch/loongarch/mm/init.c
index 4b46c5d30708d..5751b3bcca994 100644
--- a/arch/loongarch/mm/init.c
+++ b/arch/loongarch/mm/init.c
@@ -266,3 +266,22 @@ struct execmem_info __init *execmem_arch_setup(void)
return &execmem_info;
}
#endif /* CONFIG_EXECMEM && MODULES_VADDR */
+
+void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+ pte_t pte = ptep_get(ptep);
+
+ pte_val(pte) &= _PAGE_GLOBAL;
+ set_pte(ptep, pte);
+}
+
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm, unsigned long address, pmd_t *pmdp)
+{
+ pmd_t old = pmdp_get(pmdp);
+
+ pmd_clear(pmdp);
+
+ return old;
+}
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
--
2.43.0
next prev parent reply other threads:[~2026-09-23 4:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-23 4:32 [PATCH 0/3] arch/mm: Drop similar platform overrides for pxdp_get() Anshuman Khandual
2026-09-23 4:32 ` [PATCH 1/3] s390/mm: Drop all pxdp_get() Anshuman Khandual
2026-09-23 9:16 ` Heiko Carstens
2026-09-23 12:12 ` Anshuman Khandual
2026-09-23 14:32 ` Heiko Carstens
2026-09-24 2:37 ` Anshuman Khandual
2026-09-23 4:32 ` Anshuman Khandual [this message]
2026-09-23 4:32 ` [PATCH 3/3] parisc/mm: " Anshuman Khandual
-- strict thread matches above, loose matches on Subject: below --
2026-09-19 10:13 [PATCH 0/3] arch/mm: Drop similar platform overrides for pxdp_get() Anshuman Khandual
2026-09-19 10:13 ` [PATCH 2/3] loongarch/mm: Drop all pxdp_get() Anshuman Khandual
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