jbd2_log_do_checkpoint 145 fs/jbd2/checkpoint.c jbd2_log_do_checkpoint(journal); jbd2_log_do_checkpoint 1731 fs/jbd2/journal.c err = jbd2_log_do_checkpoint(journal); jbd2_log_do_checkpoint 1995 fs/jbd2/journal.c err = jbd2_log_do_checkpoint(journal); jbd2_log_do_checkpoint 1496 include/linux/jbd2.h int jbd2_log_do_checkpoint(journal_t *journal);