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arm64/hugetlb: Define __hugetlb_valid_size()

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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
__hugetlb_valid_size() 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
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/1645073557-6150-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Anshuman Khandual 2022-02-17 10:22:37 +05:30 committed by Will Deacon
parent ee017ee353
commit a8a733b201
1 changed files with 22 additions and 24 deletions
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46
arch/arm64/mm/hugetlbpage.c
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@ -56,24 +56,33 @@ void __init arm64_hugetlb_cma_reserve(void)
}
#endif /* CONFIG_CMA */
static bool __hugetlb_valid_size(unsigned long size)
{
switch (size) {
#ifndef __PAGETABLE_PMD_FOLDED
case PUD_SIZE:
return pud_sect_supported();
#endif
case CONT_PMD_SIZE:
case PMD_SIZE:
case CONT_PTE_SIZE:
return true;
}
return false;
}
#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",
if (!__hugetlb_valid_size(pagesize)) {
pr_warn("%s: unrecognized huge page size 0x%lx\n",
__func__, pagesize);
return false;
return false;
}
return true;
}
#endif
@ -506,16 +515,5 @@ arch_initcall(hugetlbpage_init);
bool __init arch_hugetlb_valid_size(unsigned long size)
{
switch (size) {
#ifndef __PAGETABLE_PMD_FOLDED
case PUD_SIZE:
return pud_sect_supported();
#endif
case CONT_PMD_SIZE:
case PMD_SIZE:
case CONT_PTE_SIZE:
return true;
}
return false;
return __hugetlb_valid_size(size);
}