jbd2_journal_next_log_block  634 fs/jbd2/commit.c 		err = jbd2_journal_next_log_block(journal, &blocknr);
jbd2_journal_next_log_block  835 fs/jbd2/journal.c 	err = jbd2_journal_next_log_block(journal, &blocknr);
jbd2_journal_next_log_block 1278 include/linux/jbd2.h int jbd2_journal_next_log_block(journal_t *, unsigned long long *);