diff options
| author | Mike Rapoport <rppt@linux.ibm.com> | 2022-02-04 13:49:20 -0500 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-03-21 12:59:02 -0400 |
| commit | 7106c51ee9a1b65eff63496636fce36bf246c1a0 (patch) | |
| tree | 7532d39eed0764ff0b0d1369262272c320dc4b30 /arch/um | |
| parent | eed05e54d275b3cfc5d8c79843c5276a5878e94a (diff) | |
arch: Add pmd_pfn() where it is missing
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>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/include/asm/pgtable.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h index b9e20bbe2f75..167e236d9bb8 100644 --- a/arch/um/include/asm/pgtable.h +++ b/arch/um/include/asm/pgtable.h @@ -109,6 +109,7 @@ extern unsigned long end_iomem; #define p4d_newpage(x) (p4d_val(x) & _PAGE_NEWPAGE) #define p4d_mkuptodate(x) (p4d_val(x) &= ~_PAGE_NEWPAGE) +#define pmd_pfn(pmd) (pmd_val(pmd) >> PAGE_SHIFT) #define pmd_page(pmd) phys_to_page(pmd_val(pmd) & PAGE_MASK) #define pte_page(x) pfn_to_page(pte_pfn(x)) |