jbd2_journal_next_log_block 562 fs/jbd2/commit.c err = jbd2_journal_next_log_block(journal, &blocknr); jbd2_journal_next_log_block 628 fs/jbd2/journal.c err = jbd2_journal_next_log_block(journal, &blocknr); jbd2_journal_next_log_block 991 include/linux/jbd2.h int jbd2_journal_next_log_block(journal_t *, unsigned long long *);