1 files changed, 13 insertions, 0 deletions

diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index c3645b9475f1..a79783faecad 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1374,6 +1374,19 @@ static inline u32 jbd2_chksum(journal_t *journal, u32 crc,
         return *(u32 *)desc.ctx;
 }
 
+/* Return most recent uncommitted transaction */
+static inline tid_t  jbd2_get_latest_transaction(journal_t *journal)
+{
+        tid_t tid;
+
+        read_lock(&journal->j_state_lock);
+        tid = journal->j_commit_request;
+        if (journal->j_running_transaction)
+                tid = journal->j_running_transaction->t_tid;
+        read_unlock(&journal->j_state_lock);
+        return tid;
+}
+
 #ifdef __KERNEL__
 
 #define buffer_trace_init(bh)   do {} while (0)