From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>
Cc: <vitalywool@gmail.com>, <linux-kernel@vger.kernel.org>,
<linux-mm@kvack.org>, <linmiaohe@huawei.com>
Subject: [PATCH 1/6] mm/z3fold: define macro NCHUNKS as TOTAL_CHUNKS - ZHDR_CHUNKS
Date: Sat, 19 Jun 2021 17:31:46 +0800 [thread overview]
Message-ID: <20210619093151.1492174-2-linmiaohe@huawei.com> (raw)
In-Reply-To: <20210619093151.1492174-1-linmiaohe@huawei.com>
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@huawei.com>
---
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
next prev parent reply other threads:[~2021-06-19 9:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-19 9:31 [PATCH 0/6] Cleanup and fixup for z3fold Miaohe Lin
2021-06-19 9:31 ` Miaohe Lin [this message]
2021-06-19 9:31 ` [PATCH 2/6] mm/z3fold: avoid possible underflow in z3fold_alloc() Miaohe Lin
2021-06-19 9:31 ` [PATCH 3/6] mm/z3fold: remove magic number in z3fold_create_pool() Miaohe Lin
2021-06-19 9:31 ` [PATCH 4/6] mm/z3fold: remove unused function handle_to_z3fold_header() Miaohe Lin
2021-06-19 9:31 ` [PATCH 5/6] mm/z3fold: fix potential memory leak in z3fold_destroy_pool() Miaohe Lin
2021-06-19 9:31 ` [PATCH 6/6] mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page Miaohe Lin
2021-06-20 0:26 ` Hillf Danton
2021-06-22 13:49 ` Miaohe Lin
2021-06-21 8:00 ` [PATCH 0/6] Cleanup and fixup for z3fold Vitaly Wool
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