[PATCH] mm_types.h: change set_page_private to inline function

[Guoqing Jiang]

Change it to inline function to make callers use the proper argument.
And no need for it to be macro per Andrew's comment [1].

[1] https://lore.kernel.org/lkml/20200518221235.1fa32c38e5766113f78e3f0d@xxxxxxxxxxxxxxxxxxxx/

Signed-off-by: Guoqing Jiang <guoqing.jiang@xxxxxxxxxxxxxxx>
---
 include/linux/mm_types.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index e88dc5c65c01..64ede5f150dc 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -240,7 +240,11 @@ static inline atomic_t *compound_pincount_ptr(struct page *page)
 #define PAGE_FRAG_CACHE_MAX_ORDER	get_order(PAGE_FRAG_CACHE_MAX_SIZE)
 
 #define page_private(page)		((page)->private)
-#define set_page_private(page, v)	((page)->private = (v))
+
+static inline void set_page_private(struct page *page, unsigned long private)
+{
+	page->private = private;
+}
 
 struct page_frag_cache {
 	void * va;
-- 
2.17.1