Since jbd2_journal_wait_updates() uses waitq based on t_updates atomic_t
variable. So from code review it looks like we don't need to use
t_handle_lock spinlock for checking t_updates value.
Hence this patch gets rid of the spinlock protection in
jbd2_journal_wait_updates()
Signed-off-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>
---
include/linux/jbd2.h | 4 ----
1 file changed, 4 deletions(-)
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 34b051aa9009..9bef47622b9d 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1768,22 +1768,18 @@ static inline void jbd2_journal_wait_updates(journal_t *journal)
if (!commit_transaction)
return;
- spin_lock(&commit_transaction->t_handle_lock);
while (atomic_read(&commit_transaction->t_updates)) {
DEFINE_WAIT(wait);
prepare_to_wait(&journal->j_wait_updates, &wait,
TASK_UNINTERRUPTIBLE);
if (atomic_read(&commit_transaction->t_updates)) {
- spin_unlock(&commit_transaction->t_handle_lock);
write_unlock(&journal->j_state_lock);
schedule();
write_lock(&journal->j_state_lock);
- spin_lock(&commit_transaction->t_handle_lock);
}
finish_wait(&journal->j_wait_updates, &wait);
}
- spin_unlock(&commit_transaction->t_handle_lock);
}
/*
--
2.31.1
