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authorMike Rapoport <rppt@linux.ibm.com>2022-02-04 21:49:20 +0300
committerMatthew Wilcox (Oracle) <willy@infradead.org>2022-03-21 19:59:02 +0300
commit7106c51ee9a1b65eff63496636fce36bf246c1a0 (patch)
tree7532d39eed0764ff0b0d1369262272c320dc4b30 /arch/csky
parenteed05e54d275b3cfc5d8c79843c5276a5878e94a (diff)
downloadlinux-7106c51ee9a1b65eff63496636fce36bf246c1a0.tar.xz
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/csky')
-rw-r--r--arch/csky/include/asm/pgtable.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/csky/include/asm/pgtable.h b/arch/csky/include/asm/pgtable.h
index 151607ed5158..bbe245117777 100644
--- a/arch/csky/include/asm/pgtable.h
+++ b/arch/csky/include/asm/pgtable.h
@@ -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)))