journal_grab_journal_head 1737 fs/jbd/transaction.c 		jh = journal_grab_journal_head(bh);
journal_grab_journal_head 1875 fs/jbd/transaction.c 	jh = journal_grab_journal_head(bh);
journal_grab_journal_head  927 include/linux/jbd.h struct journal_head *journal_grab_journal_head(struct buffer_head *bh);