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From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH] arm64/migration: Define arm64_hugetlb_valid_size()
Date: Mon,  7 Feb 2022 07:01:08 +0530	[thread overview]
Message-ID: <1644197468-26755-1-git-send-email-anshuman.khandual@arm.com> (raw)

arch_hugetlb_valid_size() can be just factored out to create another helper
to be used in arch_hugetlb_migration_supported() as well. This just defines
arm64_hugetlb_migration_supported() for that purpose.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
 arch/arm64/mm/hugetlbpage.c | 27 +++++++++++----------------
 1 file changed, 11 insertions(+), 16 deletions(-)

diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index ffb9c229610a..dcdc4c0c3bd8 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -56,24 +56,12 @@ void __init arm64_hugetlb_cma_reserve(void)
 }
 #endif /* CONFIG_CMA */
 
+static bool arm64_hugetlb_valid_size(unsigned long size);
+
 #ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
 bool arch_hugetlb_migration_supported(struct hstate *h)
 {
-	size_t pagesize = huge_page_size(h);
-
-	switch (pagesize) {
-#ifndef __PAGETABLE_PMD_FOLDED
-	case PUD_SIZE:
-		return pud_sect_supported();
-#endif
-	case PMD_SIZE:
-	case CONT_PMD_SIZE:
-	case CONT_PTE_SIZE:
-		return true;
-	}
-	pr_warn("%s: unrecognized huge page size 0x%lx\n",
-			__func__, pagesize);
-	return false;
+	return arm64_hugetlb_valid_size(huge_page_size(h));
 }
 #endif
 
@@ -504,7 +492,7 @@ static int __init hugetlbpage_init(void)
 }
 arch_initcall(hugetlbpage_init);
 
-bool __init arch_hugetlb_valid_size(unsigned long size)
+static bool arm64_hugetlb_valid_size(unsigned long size)
 {
 	switch (size) {
 #ifndef __PAGETABLE_PMD_FOLDED
@@ -517,5 +505,12 @@ bool __init arch_hugetlb_valid_size(unsigned long size)
 		return true;
 	}
 
+	pr_warn("%s: unrecognized huge page size 0x%lx\n",
+		__func__, size);
 	return false;
 }
+
+bool __init arch_hugetlb_valid_size(unsigned long size)
+{
+	return arm64_hugetlb_valid_size(size);
+}
-- 
2.20.1


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WARNING: multiple messages have this Message-ID (diff)
From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH] arm64/migration: Define arm64_hugetlb_valid_size()
Date: Mon,  7 Feb 2022 07:01:08 +0530	[thread overview]
Message-ID: <1644197468-26755-1-git-send-email-anshuman.khandual@arm.com> (raw)

arch_hugetlb_valid_size() can be just factored out to create another helper
to be used in arch_hugetlb_migration_supported() as well. This just defines
arm64_hugetlb_migration_supported() for that purpose.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
 arch/arm64/mm/hugetlbpage.c | 27 +++++++++++----------------
 1 file changed, 11 insertions(+), 16 deletions(-)

diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index ffb9c229610a..dcdc4c0c3bd8 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -56,24 +56,12 @@ void __init arm64_hugetlb_cma_reserve(void)
 }
 #endif /* CONFIG_CMA */
 
+static bool arm64_hugetlb_valid_size(unsigned long size);
+
 #ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
 bool arch_hugetlb_migration_supported(struct hstate *h)
 {
-	size_t pagesize = huge_page_size(h);
-
-	switch (pagesize) {
-#ifndef __PAGETABLE_PMD_FOLDED
-	case PUD_SIZE:
-		return pud_sect_supported();
-#endif
-	case PMD_SIZE:
-	case CONT_PMD_SIZE:
-	case CONT_PTE_SIZE:
-		return true;
-	}
-	pr_warn("%s: unrecognized huge page size 0x%lx\n",
-			__func__, pagesize);
-	return false;
+	return arm64_hugetlb_valid_size(huge_page_size(h));
 }
 #endif
 
@@ -504,7 +492,7 @@ static int __init hugetlbpage_init(void)
 }
 arch_initcall(hugetlbpage_init);
 
-bool __init arch_hugetlb_valid_size(unsigned long size)
+static bool arm64_hugetlb_valid_size(unsigned long size)
 {
 	switch (size) {
 #ifndef __PAGETABLE_PMD_FOLDED
@@ -517,5 +505,12 @@ bool __init arch_hugetlb_valid_size(unsigned long size)
 		return true;
 	}
 
+	pr_warn("%s: unrecognized huge page size 0x%lx\n",
+		__func__, size);
 	return false;
 }
+
+bool __init arch_hugetlb_valid_size(unsigned long size)
+{
+	return arm64_hugetlb_valid_size(size);
+}
-- 
2.20.1


             reply	other threads:[~2022-02-07  1:32 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-07  1:31 Anshuman Khandual [this message]
2022-02-07  1:31 ` [PATCH] arm64/migration: Define arm64_hugetlb_valid_size() Anshuman Khandual
2022-02-09 18:34 ` Catalin Marinas
2022-02-09 18:34   ` Catalin Marinas
2022-02-10  4:47   ` Anshuman Khandual
2022-02-10  4:47     ` Anshuman Khandual
2022-02-10 10:42     ` Catalin Marinas
2022-02-10 10:42       ` Catalin Marinas

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