diff options
| -rw-r--r-- | fs/jbd2/transaction.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index 9396666b7314..398d1d9209e2 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -349,7 +349,12 @@ static int start_this_handle(journal_t *journal, handle_t *handle, } alloc_transaction: - if (!journal->j_running_transaction) { + /* + * This check is racy but it is just an optimization of allocating new + * transaction early if there are high chances we'll need it. If we + * guess wrong, we'll retry or free unused transaction. + */ + if (!data_race(journal->j_running_transaction)) { /* * If __GFP_FS is not present, then we may be being called from * inside the fs writeback layer, so we MUST NOT fail. |