linux-kernel - [PATCH 5/5] jbd2: remove j_format

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Message-ID: <20230310125206.2867822-6-chengzhihao1@huawei.com>
Date:   Fri, 10 Mar 2023 20:52:06 +0800
From:   Zhihao Cheng <chengzhihao1@...wei.com>
To:     <tytso@....edu>, <adilger.kernel@...ger.ca>, <jack@...e.com>
CC:     <linux-ext4@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <chengzhihao1@...wei.com>, <yi.zhang@...wei.com>
Subject: [PATCH 5/5] jbd2: remove j_format_version

From: Zhang Yi <yi.zhang@...wei.com>

journal->j_format_version is no longer used, remove it.

Signed-off-by: Zhang Yi <yi.zhang@...wei.com>
Signed-off-by: Zhihao Cheng <chengzhihao1@...wei.com>
---
 fs/jbd2/journal.c    | 9 ---------
 include/linux/jbd2.h | 5 -----
 2 files changed, 14 deletions(-)

diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index cd94d068b4e6..fbada835b6b7 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1997,15 +1997,6 @@ static int load_superblock(journal_t *journal)
 
 	sb = journal->j_superblock;
 
-	switch (be32_to_cpu(sb->s_header.h_blocktype)) {
-	case JBD2_SUPERBLOCK_V1:
-		journal->j_format_version = 1;
-		break;
-	case JBD2_SUPERBLOCK_V2:
-		journal->j_format_version = 2;
-		break;
-	}
-
 	journal->j_tail_sequence = be32_to_cpu(sb->s_sequence);
 	journal->j_tail = be32_to_cpu(sb->s_start);
 	journal->j_first = be32_to_cpu(sb->s_first);
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 7095c0f17ad0..b7c79f68f7ca 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -792,11 +792,6 @@ struct journal_s
 	 */
 	journal_superblock_t	*j_superblock;
 
-	/**
-	 * @j_format_version: Version of the superblock format.
-	 */
-	int			j_format_version;
-
 	/**
 	 * @j_state_lock: Protect the various scalars in the journal.
 	 */
-- 
2.31.1