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-rw-r--r--arch/powerpc/include/asm/pgtable.h3
-rw-r--r--arch/powerpc/mm/pgtable.c8
-rw-r--r--arch/powerpc/perf/hv-24x7.c8
3 files changed, 11 insertions, 8 deletions
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index ac9fb11..47897a3 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -78,6 +78,9 @@ static inline pte_t *find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
}
return __find_linux_pte_or_hugepte(pgdir, ea, is_thp, shift);
}
+
+unsigned long vmalloc_to_phys(void *vmalloc_addr);
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_PGTABLE_H */
diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c
index 83dfd79..de37ff4 100644
--- a/arch/powerpc/mm/pgtable.c
+++ b/arch/powerpc/mm/pgtable.c
@@ -243,3 +243,11 @@ void assert_pte_locked(struct mm_struct *mm, unsigned long addr)
}
#endif /* CONFIG_DEBUG_VM */
+unsigned long vmalloc_to_phys(void *va)
+{
+ unsigned long pfn = vmalloc_to_pfn(va);
+
+ BUG_ON(!pfn);
+ return __pa(pfn_to_kaddr(pfn)) + offset_in_page(va);
+}
+EXPORT_SYMBOL_GPL(vmalloc_to_phys);
diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index 9f9dfda..3b09ecf 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -493,14 +493,6 @@ static size_t event_to_attr_ct(struct hv_24x7_event_data *event)
}
}
-static unsigned long vmalloc_to_phys(void *v)
-{
- struct page *p = vmalloc_to_page(v);
-
- BUG_ON(!p);
- return page_to_phys(p) + offset_in_page(v);
-}
-
/* */
struct event_uniq {
struct rb_node node;