linux-kernel - [PATCH v6 03/12] mm/debug_vm_pgtable: Use struct pgtable_debug

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Message-Id: <20210809092631.1888748-4-gshan@redhat.com>
Date:   Mon,  9 Aug 2021 17:26:22 +0800
From:   Gavin Shan <gshan@...hat.com>
To:     linux-mm@...ck.org
Cc:     linux-kernel@...r.kernel.org, anshuman.khandual@....com,
        gerald.schaefer@...ux.ibm.com, aneesh.kumar@...ux.ibm.com,
        christophe.leroy@...roup.eu, cai@....pw, catalin.marinas@....com,
        will@...nel.org, vgupta@...opsys.com, akpm@...ux-foundation.org,
        chuhu@...hat.com, shan.gavin@...il.com
Subject: [PATCH v6 03/12] mm/debug_vm_pgtable: Use struct pgtable_debug_args in leaf and savewrite tests

This uses struct pgtable_debug_args in the leaf and savewrite test
functions.

Signed-off-by: Gavin Shan <gshan@...hat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@....com>
---
 mm/debug_vm_pgtable.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index 64b5a76e0f6d..759316143a21 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -161,9 +161,9 @@ static void __init pte_advanced_tests(struct mm_struct *mm,
 	WARN_ON(pte_young(pte));
 }
 
-static void __init pte_savedwrite_tests(unsigned long pfn, pgprot_t prot)
+static void __init pte_savedwrite_tests(struct pgtable_debug_args *args)
 {
-	pte_t pte = pfn_pte(pfn, prot);
+	pte_t pte = pfn_pte(args->fixed_pte_pfn, args->page_prot_none);
 
 	if (!IS_ENABLED(CONFIG_NUMA_BALANCING))
 		return;
@@ -262,7 +262,7 @@ static void __init pmd_advanced_tests(struct mm_struct *mm,
 	pgtable = pgtable_trans_huge_withdraw(mm, pmdp);
 }
 
-static void __init pmd_leaf_tests(unsigned long pfn, pgprot_t prot)
+static void __init pmd_leaf_tests(struct pgtable_debug_args *args)
 {
 	pmd_t pmd;
 
@@ -270,7 +270,7 @@ static void __init pmd_leaf_tests(unsigned long pfn, pgprot_t prot)
 		return;
 
 	pr_debug("Validating PMD leaf\n");
-	pmd = pfn_pmd(pfn, prot);
+	pmd = pfn_pmd(args->fixed_pmd_pfn, args->page_prot);
 
 	/*
 	 * PMD based THP is a leaf entry.
@@ -279,7 +279,7 @@ static void __init pmd_leaf_tests(unsigned long pfn, pgprot_t prot)
 	WARN_ON(!pmd_leaf(pmd));
 }
 
-static void __init pmd_savedwrite_tests(unsigned long pfn, pgprot_t prot)
+static void __init pmd_savedwrite_tests(struct pgtable_debug_args *args)
 {
 	pmd_t pmd;
 
@@ -290,7 +290,7 @@ static void __init pmd_savedwrite_tests(unsigned long pfn, pgprot_t prot)
 		return;
 
 	pr_debug("Validating PMD saved write\n");
-	pmd = pfn_pmd(pfn, prot);
+	pmd = pfn_pmd(args->fixed_pmd_pfn, args->page_prot_none);
 	WARN_ON(!pmd_savedwrite(pmd_mk_savedwrite(pmd_clear_savedwrite(pmd))));
 	WARN_ON(pmd_savedwrite(pmd_clear_savedwrite(pmd_mk_savedwrite(pmd))));
 }
@@ -388,7 +388,7 @@ static void __init pud_advanced_tests(struct mm_struct *mm,
 	pudp_huge_get_and_clear(mm, vaddr, pudp);
 }
 
-static void __init pud_leaf_tests(unsigned long pfn, pgprot_t prot)
+static void __init pud_leaf_tests(struct pgtable_debug_args *args)
 {
 	pud_t pud;
 
@@ -396,7 +396,7 @@ static void __init pud_leaf_tests(unsigned long pfn, pgprot_t prot)
 		return;
 
 	pr_debug("Validating PUD leaf\n");
-	pud = pfn_pud(pfn, prot);
+	pud = pfn_pud(args->fixed_pud_pfn, args->page_prot);
 	/*
 	 * PUD based THP is a leaf entry.
 	 */
@@ -411,7 +411,7 @@ static void __init pud_advanced_tests(struct mm_struct *mm,
 				      pgprot_t prot)
 {
 }
-static void __init pud_leaf_tests(unsigned long pfn, pgprot_t prot) { }
+static void __init pud_leaf_tests(struct pgtable_debug_args *args) { }
 #endif /* CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
 #else  /* !CONFIG_TRANSPARENT_HUGEPAGE */
 static void __init pmd_basic_tests(struct pgtable_debug_args *args, int idx) { }
@@ -428,9 +428,9 @@ static void __init pud_advanced_tests(struct mm_struct *mm,
 				      pgprot_t prot)
 {
 }
-static void __init pmd_leaf_tests(unsigned long pfn, pgprot_t prot) { }
-static void __init pud_leaf_tests(unsigned long pfn, pgprot_t prot) { }
-static void __init pmd_savedwrite_tests(unsigned long pfn, pgprot_t prot) { }
+static void __init pmd_leaf_tests(struct pgtable_debug_args *args) { }
+static void __init pud_leaf_tests(struct pgtable_debug_args *args) { }
+static void __init pmd_savedwrite_tests(struct pgtable_debug_args *args) { }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
 #ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
@@ -1321,11 +1321,11 @@ static int __init debug_vm_pgtable(void)
 	p4d_basic_tests(&args);
 	pgd_basic_tests(&args);
 
-	pmd_leaf_tests(pmd_aligned, prot);
-	pud_leaf_tests(pud_aligned, prot);
+	pmd_leaf_tests(&args);
+	pud_leaf_tests(&args);
 
-	pte_savedwrite_tests(pte_aligned, protnone);
-	pmd_savedwrite_tests(pmd_aligned, protnone);
+	pte_savedwrite_tests(&args);
+	pmd_savedwrite_tests(&args);
 
 	pte_special_tests(pte_aligned, prot);
 	pte_protnone_tests(pte_aligned, protnone);
-- 
2.23.0