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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

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