linux-kernel - [PATCH 4/7] ext4: remove unnecessary check in ext4_bg_num_gdb

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Message-Id: <20230221115919.1918161-5-shikemeng@huaweicloud.com>
Date:   Tue, 21 Feb 2023 19:59:16 +0800
From:   Kemeng Shi <shikemeng@...weicloud.com>
To:     tytso@....edu, adilger.kernel@...ger.ca
Cc:     linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        shikemeng@...weicloud.com
Subject: [PATCH 4/7] ext4: remove unnecessary check in ext4_bg_num_gdb_nometa

We only call ext4_bg_num_gdb_nometa if there is no meta_bg feature or group
does not reach first_meta_bg, so group must not reside in meta group. Then
group has a global gdt if superblock exists. Just remove confusing branch
that meta_bg feature exists.

Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>
---
 fs/ext4/balloc.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 9b8a32b90ddc..08f1692f7d2f 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -844,10 +844,7 @@ static unsigned long ext4_bg_num_gdb_nometa(struct super_block *sb,
 	if (!ext4_bg_has_super(sb, group))
 		return 0;
 
-	if (ext4_has_feature_meta_bg(sb))
-		return le32_to_cpu(EXT4_SB(sb)->s_es->s_first_meta_bg);
-	else
-		return EXT4_SB(sb)->s_gdb_count;
+	return EXT4_SB(sb)->s_gdb_count;
 }
 
 /**
-- 
2.30.0