[PATCH 1/6] mm/z3fold: define macro NCHUNKS as TOTAL_CHUNKS - ZHDR_CHUNKS

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To improve the code readability, we could define macro NCHUNKS as
TOTAL_CHUNKS - ZHDR_CHUNKS. No functional change intended.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 mm/z3fold.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/z3fold.c b/mm/z3fold.c
index 56321bf37d56..04d0e493bd2e 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -62,7 +62,7 @@
 #define ZHDR_SIZE_ALIGNED round_up(sizeof(struct z3fold_header), CHUNK_SIZE)
 #define ZHDR_CHUNKS	(ZHDR_SIZE_ALIGNED >> CHUNK_SHIFT)
 #define TOTAL_CHUNKS	(PAGE_SIZE >> CHUNK_SHIFT)
-#define NCHUNKS		((PAGE_SIZE - ZHDR_SIZE_ALIGNED) >> CHUNK_SHIFT)
+#define NCHUNKS		(TOTAL_CHUNKS - ZHDR_CHUNKS)
 
 #define BUDDY_MASK	(0x3)
 #define BUDDY_SHIFT	2
-- 
2.23.0






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