jbd: Provide function to check whether transaction will issue data barrier

Provide a function which returns whether a transaction with given tid
will send a barrier to the filesystem device. The function will be used
by ext3 to detect whether fsync needs to send a separate barrier or not.

Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index 516a2a27e87a..e06965081ba5 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -427,9 +427,9 @@ struct transaction_s
         enum {
                 T_RUNNING,
                 T_LOCKED,
-                T_RUNDOWN,
                 T_FLUSH,
                 T_COMMIT,
+                T_COMMIT_RECORD,
                 T_FINISHED
         }                       t_state;
 
@@ -991,6 +991,7 @@ int journal_start_commit(journal_t *journal, tid_t *tid);
 int journal_force_commit_nested(journal_t *journal);
 int log_wait_commit(journal_t *journal, tid_t tid);
 int log_do_checkpoint(journal_t *journal);
+int journal_trans_will_send_data_barrier(journal_t *journal, tid_t tid);
 
 void __log_wait_for_space(journal_t *journal);
 extern void     __journal_drop_transaction(journal_t *, transaction_t *);