search for: j_barrier_count

...ing unexpected delays. This debugging lead me to look at the code in start_this_handle(), contained in file fs/jbd/transaction.c, and I have a question concerning the wake_up() logic for the thread which may go to sleep on <j_wait_transaction_locked>. The thread will sleep as long as <j_barrier_count> is non-zero: repeat: spin_lock(&journal->j_state_lock); ... if (journal->j_barrier_count) { spin_unlock(&journal->j_state_lock); wait_event(...);...

This version fixes three bugs in the 2nd patch of this series that caused kernel BUG when the system was under race. We weren't accounting with t_oustanding_credits correctly, and there were race conditions caused by the fact the I had overlooked the fact that __jbd2_log_wait_for_space() and jbd2_get_transaction() requires j_state_lock to be write locked. Theodore Ts'o (3): jbd2: Use