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mm/debug_vm_pgtable: use struct pgtable_debug_args in protnone and devmap tests 

This uses struct pgtable_debug_args in protnone and devmap test functions.
After that, the unused variable @protnone in debug_vm_pgtable() is
dropped.

Link: https://lkml.kernel.org/r/20210809092631.1888748-5-gshan@redhat.com
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu>	[powerpc 8xx]
Tested-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>	[s390]
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chunyu Hu <chuhu@redhat.com>
Cc: Qian Cai <cai@lca.pw>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Gavin Shan 2021-09-02 14:52:28 -07:00 committed by Linus Torvalds
parent 8983d231c7
commit 8cb183f2f2
1 changed files with 26 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
mm/debug_vm_pgtable.c
View File

@ -662,9 +662,9 @@ static void __init pmd_populate_tests(struct mm_struct *mm, pmd_t *pmdp,
WARN_ON(pmd_bad(pmd));
}
static void __init pte_special_tests(unsigned long pfn, pgprot_t prot)
static void __init pte_special_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);
if (!IS_ENABLED(CONFIG_ARCH_HAS_PTE_SPECIAL))
return;
@ -673,9 +673,9 @@ static void __init pte_special_tests(unsigned long pfn, pgprot_t prot)
WARN_ON(!pte_special(pte_mkspecial(pte)));
}
static void __init pte_protnone_tests(unsigned long pfn, pgprot_t prot)
static void __init pte_protnone_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;
@ -686,7 +686,7 @@ static void __init pte_protnone_tests(unsigned long pfn, pgprot_t prot)
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static void __init pmd_protnone_tests(unsigned long pfn, pgprot_t prot)
static void __init pmd_protnone_tests(struct pgtable_debug_args *args)
{
pmd_t pmd;
@ -697,25 +697,25 @@ static void __init pmd_protnone_tests(unsigned long pfn, pgprot_t prot)
return;
pr_debug("Validating PMD protnone\n");
pmd = pmd_mkhuge(pfn_pmd(pfn, prot));
pmd = pmd_mkhuge(pfn_pmd(args->fixed_pmd_pfn, args->page_prot_none));
WARN_ON(!pmd_protnone(pmd));
WARN_ON(!pmd_present(pmd));
}
#else /* !CONFIG_TRANSPARENT_HUGEPAGE */
static void __init pmd_protnone_tests(unsigned long pfn, pgprot_t prot) { }
static void __init pmd_protnone_tests(struct pgtable_debug_args *args) { }
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#ifdef CONFIG_ARCH_HAS_PTE_DEVMAP
static void __init pte_devmap_tests(unsigned long pfn, pgprot_t prot)
static void __init pte_devmap_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);
pr_debug("Validating PTE devmap\n");
WARN_ON(!pte_devmap(pte_mkdevmap(pte)));
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static void __init pmd_devmap_tests(unsigned long pfn, pgprot_t prot)
static void __init pmd_devmap_tests(struct pgtable_debug_args *args)
{
pmd_t pmd;
@ -723,12 +723,12 @@ static void __init pmd_devmap_tests(unsigned long pfn, pgprot_t prot)
return;
pr_debug("Validating PMD devmap\n");
pmd = pfn_pmd(pfn, prot);
pmd = pfn_pmd(args->fixed_pmd_pfn, args->page_prot);
WARN_ON(!pmd_devmap(pmd_mkdevmap(pmd)));
}
#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
static void __init pud_devmap_tests(unsigned long pfn, pgprot_t prot)
static void __init pud_devmap_tests(struct pgtable_debug_args *args)
{
pud_t pud;
@ -736,20 +736,20 @@ static void __init pud_devmap_tests(unsigned long pfn, pgprot_t prot)
return;
pr_debug("Validating PUD devmap\n");
pud = pfn_pud(pfn, prot);
pud = pfn_pud(args->fixed_pud_pfn, args->page_prot);
WARN_ON(!pud_devmap(pud_mkdevmap(pud)));
}
#else /* !CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
static void __init pud_devmap_tests(unsigned long pfn, pgprot_t prot) { }
static void __init pud_devmap_tests(struct pgtable_debug_args *args) { }
#endif /* CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
#else /* CONFIG_TRANSPARENT_HUGEPAGE */
static void __init pmd_devmap_tests(unsigned long pfn, pgprot_t prot) { }
static void __init pud_devmap_tests(unsigned long pfn, pgprot_t prot) { }
static void __init pmd_devmap_tests(struct pgtable_debug_args *args) { }
static void __init pud_devmap_tests(struct pgtable_debug_args *args) { }
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#else
static void __init pte_devmap_tests(unsigned long pfn, pgprot_t prot) { }
static void __init pmd_devmap_tests(unsigned long pfn, pgprot_t prot) { }
static void __init pud_devmap_tests(unsigned long pfn, pgprot_t prot) { }
static void __init pte_devmap_tests(struct pgtable_debug_args *args) { }
static void __init pmd_devmap_tests(struct pgtable_debug_args *args) { }
static void __init pud_devmap_tests(struct pgtable_debug_args *args) { }
#endif /* CONFIG_ARCH_HAS_PTE_DEVMAP */
static void __init pte_soft_dirty_tests(unsigned long pfn, pgprot_t prot)
@ -1227,7 +1227,7 @@ static int __init debug_vm_pgtable(void)
pmd_t *pmdp, *saved_pmdp, pmd;
pte_t *ptep;
pgtable_t saved_ptep;
pgprot_t prot, protnone;
pgprot_t prot;
phys_addr_t paddr;
unsigned long vaddr, pte_aligned, pmd_aligned;
unsigned long pud_aligned;
@ -1247,12 +1247,6 @@ static int __init debug_vm_pgtable(void)
return 1;
}
/*
* __P000 (or even __S000) will help create page table entries with
* PROT_NONE permission as required for pxx_protnone_tests().
*/
protnone = __P000;
vma = vm_area_alloc(mm);
if (!vma) {
pr_err("vma allocation failed\n");
@ -1327,13 +1321,13 @@ static int __init debug_vm_pgtable(void)
pte_savedwrite_tests(&args);
pmd_savedwrite_tests(&args);
pte_special_tests(pte_aligned, prot);
pte_protnone_tests(pte_aligned, protnone);
pmd_protnone_tests(pmd_aligned, protnone);
pte_special_tests(&args);
pte_protnone_tests(&args);
pmd_protnone_tests(&args);
pte_devmap_tests(pte_aligned, prot);
pmd_devmap_tests(pmd_aligned, prot);
pud_devmap_tests(pud_aligned, prot);
pte_devmap_tests(&args);
pmd_devmap_tests(&args);
pud_devmap_tests(&args);
pte_soft_dirty_tests(pte_aligned, prot);
pmd_soft_dirty_tests(pmd_aligned, prot);