diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 938df5e8402b5886770bf3e17f88cf454c3e9045..270cab2e6030050e8bd76ebf628bab8236fedfb2 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -787,6 +787,25 @@ int set_memory_uc(unsigned long addr, int numpages)
 }
 EXPORT_SYMBOL(set_memory_uc);
 
+int _set_memory_wc(unsigned long addr, int numpages)
+{
+	return change_page_attr_set(addr, numpages,
+				    __pgprot(_PAGE_CACHE_WC));
+}
+
+int set_memory_wc(unsigned long addr, int numpages)
+{
+	if (!pat_wc_enabled)
+		return set_memory_uc(addr, numpages);
+
+	if (reserve_memtype(addr, addr + numpages * PAGE_SIZE,
+		_PAGE_CACHE_WC, NULL))
+		return -EINVAL;
+
+	return _set_memory_wc(addr, numpages);
+}
+EXPORT_SYMBOL(set_memory_wc);
+
 int _set_memory_wb(unsigned long addr, int numpages)
 {
 	return change_page_attr_clear(addr, numpages,
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index 5676fba10a097b9b9dfe4a86841acf1c99373cca..90437d3f76101c55ad7f50a732ba9e53e26e44af 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -35,8 +35,10 @@ int set_pages_ro(struct page *page, int numpages);
 int set_pages_rw(struct page *page, int numpages);
 
 int _set_memory_uc(unsigned long addr, int numpages);
+int _set_memory_wc(unsigned long addr, int numpages);
 int _set_memory_wb(unsigned long addr, int numpages);
 int set_memory_uc(unsigned long addr, int numpages);
+int set_memory_wc(unsigned long addr, int numpages);
 int set_memory_wb(unsigned long addr, int numpages);
 int set_memory_x(unsigned long addr, int numpages);
 int set_memory_nx(unsigned long addr, int numpages);