The patch titled
Subject: mm/debug_vm_pgtable: use struct vm_pgtable_debug in basic tests
has been added to the -mm tree. Its filename is
mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-basic-tests.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-basic-tests.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-basic-tests.patch
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The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Gavin Shan <gshan@xxxxxxxxxx>
Subject: mm/debug_vm_pgtable: use struct vm_pgtable_debug in basic tests
This uses struct vm_pgtable_debug in the basic test functions. There are
more cleanups applied:
* Move hugetlb_basic_tests() so that the basic tests are treated
as a bundle.
* Drop parameters to {pgd, p4d}_basic_tests() as they're never
used.
Link: https://lkml.kernel.org/r/20210706061748.161258-3-gshan@xxxxxxxxxx
Signed-off-by: Gavin Shan <gshan@xxxxxxxxxx>
Cc: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Chunyu Hu <chuhu@xxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/debug_vm_pgtable.c | 47 +++++++++++++++++++---------------------
1 file changed, 23 insertions(+), 24 deletions(-)
--- a/mm/debug_vm_pgtable.c~mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-basic-tests
+++ a/mm/debug_vm_pgtable.c
@@ -88,10 +88,10 @@ struct vm_pgtable_debug {
unsigned long fixed_pte_pfn;
};
-static void __init pte_basic_tests(unsigned long pfn, int idx)
+static void __init pte_basic_tests(struct vm_pgtable_debug *debug, int idx)
{
pgprot_t prot = protection_map[idx];
- pte_t pte = pfn_pte(pfn, prot);
+ pte_t pte = pfn_pte(debug->fixed_pte_pfn, prot);
unsigned long val = idx, *ptr = &val;
pr_debug("Validating PTE basic (%pGv)\n", ptr);
@@ -173,7 +173,7 @@ static void __init pte_savedwrite_tests(
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-static void __init pmd_basic_tests(unsigned long pfn, int idx)
+static void __init pmd_basic_tests(struct vm_pgtable_debug *debug, int idx)
{
pgprot_t prot = protection_map[idx];
unsigned long val = idx, *ptr = &val;
@@ -183,7 +183,7 @@ static void __init pmd_basic_tests(unsig
return;
pr_debug("Validating PMD basic (%pGv)\n", ptr);
- pmd = pfn_pmd(pfn, prot);
+ pmd = pfn_pmd(debug->fixed_pmd_pfn, prot);
/*
* This test needs to be executed after the given page table entry
@@ -295,7 +295,7 @@ static void __init pmd_savedwrite_tests(
}
#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 vm_pgtable_debug *debug, int idx)
{
pgprot_t prot = protection_map[idx];
unsigned long val = idx, *ptr = &val;
@@ -305,7 +305,7 @@ static void __init pud_basic_tests(struc
return;
pr_debug("Validating PUD basic (%pGv)\n", ptr);
- pud = pfn_pud(pfn, prot);
+ pud = pfn_pud(debug->fixed_pud_pfn, prot);
/*
* This test needs to be executed after the given page table entry
@@ -326,7 +326,7 @@ static void __init pud_basic_tests(struc
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(debug->mm))
return;
/*
@@ -403,7 +403,7 @@ static void __init pud_leaf_tests(unsign
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 vm_pgtable_debug *debug, 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,
@@ -413,8 +413,8 @@ static void __init pud_advanced_tests(st
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 vm_pgtable_debug *debug, int idx) { }
+static void __init pud_basic_tests(struct vm_pgtable_debug *debug, 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,
@@ -475,7 +475,7 @@ static void __init pmd_huge_tests(pmd_t
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(void)
{
p4d_t p4d;
@@ -484,7 +484,7 @@ static void __init p4d_basic_tests(unsig
WARN_ON(!p4d_same(p4d, p4d));
}
-static void __init pgd_basic_tests(unsigned long pfn, pgprot_t prot)
+static void __init pgd_basic_tests(void)
{
pgd_t pgd;
@@ -889,7 +889,7 @@ static void __init swap_migration_tests(
}
#ifdef CONFIG_HUGETLB_PAGE
-static void __init hugetlb_basic_tests(unsigned long pfn, pgprot_t prot)
+static void __init hugetlb_basic_tests(struct vm_pgtable_debug *debug)
{
struct page *page;
pte_t pte;
@@ -899,21 +899,21 @@ static void __init hugetlb_basic_tests(u
* 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(debug->fixed_pmd_pfn);
+ pte = mk_huge_pte(page, debug->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(debug->fixed_pmd_pfn, debug->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 vm_pgtable_debug *debug) { }
#endif /* CONFIG_HUGETLB_PAGE */
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -1248,9 +1248,9 @@ 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(&debug, idx);
+ pmd_basic_tests(&debug, idx);
+ pud_basic_tests(&debug, idx);
}
/*
@@ -1260,8 +1260,9 @@ 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();
+ pgd_basic_tests();
+ hugetlb_basic_tests(&debug);
pmd_leaf_tests(pmd_aligned, prot);
pud_leaf_tests(pud_aligned, prot);
@@ -1290,8 +1291,6 @@ 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);
-
/*
* Page table modifying tests. They need to hold
* proper page table lock.
_
Patches currently in -mm which might be from gshan@xxxxxxxxxx are
mm-debug_vm_pgtable-introduce-struct-vm_pgtable_debug.patch
mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-basic-tests.patch
mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-leaf-and-savewrite-tests.patch
mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-protnone-and-devmap-tests.patch
mm-vm_debug_pgtable-use-struct-vm_pgtable_debug-in-soft_dirty-and-swap-tests.patch
mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-migration-and-thp-tests.patch
mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-pte-modifying-tests.patch
mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-pmd-modifying-tests.patch
mm-vm_debug_pgtable-use-struct-vm_pgtable_debug-in-pud-modifying-tests.patch
mm-debug_vm_pgtable-use-struct-vm_pgtable_debug-in-pgd-and-p4d-modifying-tests.patch
mm-debug_vm_pgtable-remove-unused-code.patch
mm-debug_vm_pgtable-fix-corrupted-page-flag.patch
