linux-kernel - [f2fs-dev] [PATCH] f2fs: save a multiplication for last

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Message-id: <000101d35387$2dec7d40$89c577c0$@samsung.com>
Date:   Thu, 02 Nov 2017 11:02:52 +0800
From:   Fan Li <fanofcode.li@...sung.com>
To:     'Chao Yu' <chao@...nel.org>, 'Jaegeuk Kim' <jaegeuk@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Subject: [f2fs-dev] [PATCH] f2fs: save a multiplication for last_nid
 calculation

Use a slightly easier way to calculate last_nid.

Signed-off-by: Fan li <fanofcode.li@...sung.com>
---
 fs/f2fs/node.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 7834097..55ab330 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2642,7 +2642,7 @@ static inline void load_free_nid_bitmap(struct f2fs_sb_info *sbi)
                __set_bit_le(i, nm_i->nat_block_bitmap);

                nid = i * NAT_ENTRY_PER_BLOCK;
-               last_nid = (i + 1) * NAT_ENTRY_PER_BLOCK;
+               last_nid = nid + NAT_ENTRY_PER_BLOCK;

                spin_lock(&NM_I(sbi)->nid_list_lock);
                for (; nid < last_nid; nid++)
--
2.7.4