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arch: Add pmd_pfn() where it is missing

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We need to use this function in common code, so define it for
architectures and/or configrations that miss it.  The result of
pmd_pfn() will only be used if TRANSPARENT_HUGEPAGE is enabled,
but a function or macro called pmd_pfn() must be defined, even
on machines with two level page tables.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This commit is contained in:
Mike Rapoport
2022-02-04 13:49:20 -05:00
committed by Matthew Wilcox (Oracle)
parent eed05e54d2
commit 7106c51ee9
18 changed files with 24 additions and 1 deletions
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arch/csky/include/asm/pgtable.h
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@@ -30,6 +30,7 @@
#define pgd_ERROR(e) \
pr_err("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
#define pmd_pfn(pmd) (pmd_phys(pmd) >> PAGE_SHIFT)
#define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT))
#define pte_clear(mm, addr, ptep) set_pte((ptep), \
(((unsigned int) addr >= PAGE_OFFSET) ? __pte(_PAGE_GLOBAL) : __pte(0)))