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-rw-r--r--include/linux/highmem.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 7dcbc82..13875ce 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -63,12 +63,14 @@ static inline void *kmap_atomic(struct page *page, enum km_type idx)
#endif /* CONFIG_HIGHMEM */
/* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */
+#ifndef clear_user_highpage
static inline void clear_user_highpage(struct page *page, unsigned long vaddr)
{
void *addr = kmap_atomic(page, KM_USER0);
clear_user_page(addr, vaddr, page);
kunmap_atomic(addr, KM_USER0);
}
+#endif
#ifndef __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
/**