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Message-Id: <20210727061401.592616-3-gshan@redhat.com>
Date: Tue, 27 Jul 2021 14:13:51 +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, akpm@...ux-foundation.org, chuhu@...hat.com,
shan.gavin@...il.com
Subject: [PATCH v4 02/12] mm/debug_vm_pgtable: Use struct pgtable_debug_args in basic tests
This uses struct pgtable_debug_args in the basic test functions. The
unused variables @pgd_aligned and @p4d_aligned in debug_vm_pgtable()
are dropped.
Signed-off-by: Gavin Shan <gshan@...hat.com>
---
mm/debug_vm_pgtable.c | 50 +++++++++++++++++++++----------------------
1 file changed, 24 insertions(+), 26 deletions(-)
diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index 8c7361643166..8498aa180ebc 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -89,10 +89,10 @@ struct pgtable_debug_args {
unsigned long fixed_pte_pfn;
};
-static void __init pte_basic_tests(unsigned long pfn, int idx)
+static void __init pte_basic_tests(struct pgtable_debug_args *args, int idx)
{
pgprot_t prot = protection_map[idx];
- pte_t pte = pfn_pte(pfn, prot);
+ pte_t pte = pfn_pte(args->fixed_pte_pfn, prot);
unsigned long val = idx, *ptr = &val;
pr_debug("Validating PTE basic (%pGv)\n", ptr);
@@ -174,7 +174,7 @@ static void __init pte_savedwrite_tests(unsigned long pfn, pgprot_t prot)
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-static void __init pmd_basic_tests(unsigned long pfn, int idx)
+static void __init pmd_basic_tests(struct pgtable_debug_args *args, int idx)
{
pgprot_t prot = protection_map[idx];
unsigned long val = idx, *ptr = &val;
@@ -184,7 +184,7 @@ static void __init pmd_basic_tests(unsigned long pfn, int idx)
return;
pr_debug("Validating PMD basic (%pGv)\n", ptr);
- pmd = pfn_pmd(pfn, prot);
+ pmd = pfn_pmd(args->fixed_pmd_pfn, prot);
/*
* This test needs to be executed after the given page table entry
@@ -296,7 +296,7 @@ static void __init pmd_savedwrite_tests(unsigned long pfn, pgprot_t prot)
}
#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
-static void __init pud_basic_tests(struct mm_struct *mm, unsigned long pfn, int idx)
+static void __init pud_basic_tests(struct pgtable_debug_args *args, int idx)
{
pgprot_t prot = protection_map[idx];
unsigned long val = idx, *ptr = &val;
@@ -306,7 +306,7 @@ static void __init pud_basic_tests(struct mm_struct *mm, unsigned long pfn, int
return;
pr_debug("Validating PUD basic (%pGv)\n", ptr);
- pud = pfn_pud(pfn, prot);
+ pud = pfn_pud(args->fixed_pud_pfn, prot);
/*
* This test needs to be executed after the given page table entry
@@ -327,7 +327,7 @@ static void __init pud_basic_tests(struct mm_struct *mm, unsigned long pfn, int
WARN_ON(pud_dirty(pud_wrprotect(pud_mkclean(pud))));
WARN_ON(!pud_dirty(pud_wrprotect(pud_mkdirty(pud))));
- if (mm_pmd_folded(mm))
+ if (mm_pmd_folded(args->mm))
return;
/*
@@ -404,7 +404,7 @@ static void __init pud_leaf_tests(unsigned long pfn, pgprot_t prot)
WARN_ON(!pud_leaf(pud));
}
#else /* !CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
-static void __init pud_basic_tests(struct mm_struct *mm, unsigned long pfn, int idx) { }
+static void __init pud_basic_tests(struct pgtable_debug_args *args, int idx) { }
static void __init pud_advanced_tests(struct mm_struct *mm,
struct vm_area_struct *vma, pud_t *pudp,
unsigned long pfn, unsigned long vaddr,
@@ -414,8 +414,8 @@ static void __init pud_advanced_tests(struct mm_struct *mm,
static void __init pud_leaf_tests(unsigned long pfn, pgprot_t prot) { }
#endif /* CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
#else /* !CONFIG_TRANSPARENT_HUGEPAGE */
-static void __init pmd_basic_tests(unsigned long pfn, int idx) { }
-static void __init pud_basic_tests(struct mm_struct *mm, unsigned long pfn, int idx) { }
+static void __init pmd_basic_tests(struct pgtable_debug_args *args, int idx) { }
+static void __init pud_basic_tests(struct pgtable_debug_args *args, int idx) { }
static void __init pmd_advanced_tests(struct mm_struct *mm,
struct vm_area_struct *vma, pmd_t *pmdp,
unsigned long pfn, unsigned long vaddr,
@@ -476,7 +476,7 @@ static void __init pmd_huge_tests(pmd_t *pmdp, unsigned long pfn, pgprot_t prot)
static void __init pud_huge_tests(pud_t *pudp, unsigned long pfn, pgprot_t prot) { }
#endif /* CONFIG_HAVE_ARCH_HUGE_VMAP */
-static void __init p4d_basic_tests(unsigned long pfn, pgprot_t prot)
+static void __init p4d_basic_tests(struct pgtable_debug_args *args)
{
p4d_t p4d;
@@ -485,7 +485,7 @@ static void __init p4d_basic_tests(unsigned long pfn, pgprot_t prot)
WARN_ON(!p4d_same(p4d, p4d));
}
-static void __init pgd_basic_tests(unsigned long pfn, pgprot_t prot)
+static void __init pgd_basic_tests(struct pgtable_debug_args *args)
{
pgd_t pgd;
@@ -890,7 +890,7 @@ static void __init swap_migration_tests(void)
}
#ifdef CONFIG_HUGETLB_PAGE
-static void __init hugetlb_basic_tests(unsigned long pfn, pgprot_t prot)
+static void __init hugetlb_basic_tests(struct pgtable_debug_args *args)
{
struct page *page;
pte_t pte;
@@ -900,21 +900,21 @@ static void __init hugetlb_basic_tests(unsigned long pfn, pgprot_t prot)
* Accessing the page associated with the pfn is safe here,
* as it was previously derived from a real kernel symbol.
*/
- page = pfn_to_page(pfn);
- pte = mk_huge_pte(page, prot);
+ page = pfn_to_page(args->fixed_pmd_pfn);
+ pte = mk_huge_pte(page, args->page_prot);
WARN_ON(!huge_pte_dirty(huge_pte_mkdirty(pte)));
WARN_ON(!huge_pte_write(huge_pte_mkwrite(huge_pte_wrprotect(pte))));
WARN_ON(huge_pte_write(huge_pte_wrprotect(huge_pte_mkwrite(pte))));
#ifdef CONFIG_ARCH_WANT_GENERAL_HUGETLB
- pte = pfn_pte(pfn, prot);
+ pte = pfn_pte(args->fixed_pmd_pfn, args->page_prot);
WARN_ON(!pte_huge(pte_mkhuge(pte)));
#endif /* CONFIG_ARCH_WANT_GENERAL_HUGETLB */
}
#else /* !CONFIG_HUGETLB_PAGE */
-static void __init hugetlb_basic_tests(unsigned long pfn, pgprot_t prot) { }
+static void __init hugetlb_basic_tests(struct pgtable_debug_args *args) { }
#endif /* CONFIG_HUGETLB_PAGE */
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -1240,7 +1240,7 @@ static int __init debug_vm_pgtable(void)
pgprot_t prot, protnone;
phys_addr_t paddr;
unsigned long vaddr, pte_aligned, pmd_aligned;
- unsigned long pud_aligned, p4d_aligned, pgd_aligned;
+ unsigned long pud_aligned;
spinlock_t *ptl = NULL;
int idx, ret;
@@ -1283,8 +1283,6 @@ static int __init debug_vm_pgtable(void)
pte_aligned = (paddr & PAGE_MASK) >> PAGE_SHIFT;
pmd_aligned = (paddr & PMD_MASK) >> PAGE_SHIFT;
pud_aligned = (paddr & PUD_MASK) >> PAGE_SHIFT;
- p4d_aligned = (paddr & P4D_MASK) >> PAGE_SHIFT;
- pgd_aligned = (paddr & PGDIR_MASK) >> PAGE_SHIFT;
WARN_ON(!pfn_valid(pte_aligned));
pgdp = pgd_offset(mm, vaddr);
@@ -1318,9 +1316,9 @@ static int __init debug_vm_pgtable(void)
* given page table entry.
*/
for (idx = 0; idx < ARRAY_SIZE(protection_map); idx++) {
- pte_basic_tests(pte_aligned, idx);
- pmd_basic_tests(pmd_aligned, idx);
- pud_basic_tests(mm, pud_aligned, idx);
+ pte_basic_tests(&args, idx);
+ pmd_basic_tests(&args, idx);
+ pud_basic_tests(&args, idx);
}
/*
@@ -1330,8 +1328,8 @@ static int __init debug_vm_pgtable(void)
* the above iteration for now to save some test execution
* time.
*/
- p4d_basic_tests(p4d_aligned, prot);
- pgd_basic_tests(pgd_aligned, prot);
+ p4d_basic_tests(&args);
+ pgd_basic_tests(&args);
pmd_leaf_tests(pmd_aligned, prot);
pud_leaf_tests(pud_aligned, prot);
@@ -1360,7 +1358,7 @@ static int __init debug_vm_pgtable(void)
pmd_thp_tests(pmd_aligned, prot);
pud_thp_tests(pud_aligned, prot);
- hugetlb_basic_tests(pte_aligned, prot);
+ hugetlb_basic_tests(&args);
/*
* Page table modifying tests. They need to hold
--
2.23.0
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