jbd2: remove dead equality check of j_commit_[sequence/request] in kjournald2

The j_commit_[sequence/request] are updated with j_state_lock held during
runtime. In kjournald2, two equality checks of j_commit_[sequence/request]
are under the same j_state_lock, then the second check is unnecessary.

Signed-off-by: Kemeng Shi <[email protected]>
Reviewed-by: Zhang Yi <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Theodore Ts'o <[email protected]>

Author: Kemeng Shi

fs/jbd2/journal.c

@@ -224,8 +224,6 @@ static int kjournald2(void *arg)
 
 		prepare_to_wait(&journal->j_wait_commit, &wait,
 				TASK_INTERRUPTIBLE);
-		if (journal->j_commit_sequence != journal->j_commit_request)
-			should_sleep = 0;
 		transaction = journal->j_running_transaction;
 		if (transaction && time_after_eq(jiffies,
 						transaction->t_expires))