linux-ext4 - [PATCH 3/8] ext4: fix wrong unit use in ext4_mb_new_inode

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

Message-Id: <20230321161220.418652-4-shikemeng@huaweicloud.com>
Date:   Wed, 22 Mar 2023 00:12:15 +0800
From:   Kemeng Shi <shikemeng@...weicloud.com>
To:     tytso@....edu, adilger.kernel@...ger.ca,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     ojaswin@...ux.ibm.com, shikemeng@...weicloud.com
Subject: [PATCH 3/8] ext4: fix wrong unit use in ext4_mb_new_inode_pa

fe_logical and win are both in block unit. Remove wrong convertion for
win from block unit to cluster unit.

Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>
---
 fs/ext4/mballoc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 7f695830621a..86d978e1f7dc 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4640,8 +4640,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
 		if (offs && offs < win)
 			win = offs;
 
-		ac->ac_b_ex.fe_logical = ac->ac_o_ex.fe_logical -
-			EXT4_NUM_B2C(sbi, win);
+		ac->ac_b_ex.fe_logical = ac->ac_o_ex.fe_logical - win;
 		BUG_ON(ac->ac_o_ex.fe_logical < ac->ac_b_ex.fe_logical);
 		BUG_ON(ac->ac_o_ex.fe_len > ac->ac_b_ex.fe_len);
 	}
-- 
2.30.0