[PATCH v4 2/2] ext4: add journal cycled recording support

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From: Zhang Yi <yi.zhang@xxxxxxxxxx>

Always enable 'JBD2_CYCLE_RECORD' journal option on ext4, letting the
jbd2 continue to record new journal transactions from the recovered
journal head or the checkpointed transactions in the previous mount.

Signed-off-by: Zhang Yi <yi.zhang@xxxxxxxxxx>
---
 fs/ext4/super.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 88f7b8a88c76..9b46adae241b 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5691,6 +5691,11 @@ static void ext4_init_journal_params(struct super_block *sb, journal_t *journal)
 		journal->j_flags |= JBD2_ABORT_ON_SYNCDATA_ERR;
 	else
 		journal->j_flags &= ~JBD2_ABORT_ON_SYNCDATA_ERR;
+	/*
+	 * Always enable journal cycle record option, letting the journal
+	 * records log transactions continuously between each mount.
+	 */
+	journal->j_flags |= JBD2_CYCLE_RECORD;
 	write_unlock(&journal->j_state_lock);
 }
 
-- 
2.31.1




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