From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-mm@kvack.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] arm64/mm: Drop __HAVE_ARCH_HUGE_PTEP_GET
Date: Tue, 14 Apr 2020 17:14:28 +0530 [thread overview]
Message-ID: <1586864670-21799-2-git-send-email-anshuman.khandual@arm.com> (raw)
In-Reply-To: <1586864670-21799-1-git-send-email-anshuman.khandual@arm.com>
Platform specific huge_ptep_get() is required only when fetching the huge
PTE involves more than just dereferencing the page table pointer. This is
not the case on arm64 platform. Hence huge_ptep_pte() can be dropped along
with it's __HAVE_ARCH_HUGE_PTEP_GET subscription.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
arch/arm64/include/asm/hugetlb.h | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 2eb6c234d594..b88878ddc88b 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -17,12 +17,6 @@
extern bool arch_hugetlb_migration_supported(struct hstate *h);
#endif
-#define __HAVE_ARCH_HUGE_PTEP_GET
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
- return READ_ONCE(*ptep);
-}
-
static inline int is_hugepage_only_range(struct mm_struct *mm,
unsigned long addr, unsigned long len)
{
--
2.20.1
next prev parent reply other threads:[~2020-04-14 11:44 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-14 11:44 [PATCH 0/3] mm/hugetlb: Add some new arch enabling macros Anshuman Khandual
2020-04-14 11:44 ` Anshuman Khandual [this message]
2020-04-14 11:44 ` [PATCH 2/3] mm/hugetlb: Introduce HAVE_ARCH_IS_HUGEPAGE_ONLY_RANGE Anshuman Khandual
2020-04-14 11:44 ` [PATCH 3/3] mm/hugetlb: Introduce HAVE_ARCH_CLEAR_HUGEPAGE_FLAGS Anshuman Khandual
2020-04-26 0:55 ` Andrew Morton
2020-04-26 2:43 ` Anshuman Khandual
2020-04-26 3:01 ` Andrew Morton
2020-05-05 2:51 ` Anshuman Khandual
2020-05-05 20:12 ` Andrew Morton
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