[PATCH 2/3] jbd2: remove unused transaction->t_private_list

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After we remove ext4 journal callback, transaction->t_private_list is
not used anymore. Just remove unused transaction->t_private_list.

Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
---
 Documentation/filesystems/journalling.rst | 2 --
 fs/jbd2/transaction.c                     | 1 -
 include/linux/jbd2.h                      | 6 ------
 3 files changed, 9 deletions(-)

diff --git a/Documentation/filesystems/journalling.rst b/Documentation/filesystems/journalling.rst
index 0254f7d57429..74f6aa2e1009 100644
--- a/Documentation/filesystems/journalling.rst
+++ b/Documentation/filesystems/journalling.rst
@@ -112,8 +112,6 @@ so that you can do some of your own management. You ask the journalling
 layer for calling the callback by simply setting
 ``journal->j_commit_callback`` function pointer and that function is
 called after each transaction commit. You can also use
-``transaction->t_private_list`` for attaching entries to a transaction
-that need processing when the transaction commits.
 
 JBD2 also provides a way to block all transaction updates via
 jbd2_journal_lock_updates() /
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 66513c18ca29..9fe17e290c21 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -92,7 +92,6 @@ static void jbd2_get_transaction(journal_t *journal,
 	atomic_set(&transaction->t_outstanding_revokes, 0);
 	atomic_set(&transaction->t_handle_count, 0);
 	INIT_LIST_HEAD(&transaction->t_inode_list);
-	INIT_LIST_HEAD(&transaction->t_private_list);
 
 	/* Set up the commit timer for the new transaction. */
 	journal->j_commit_timer.expires = round_jiffies_up(transaction->t_expires);
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 50f7ea8714bf..90c802e48e23 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -700,12 +700,6 @@ struct transaction_s
 
 	/* Disk flush needs to be sent to fs partition [no locking] */
 	int			t_need_data_flush;
-
-	/*
-	 * For use by the filesystem to store fs-specific data
-	 * structures associated with the transaction
-	 */
-	struct list_head	t_private_list;
 };
 
 struct transaction_run_stats_s {
-- 
2.30.0





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