30 static inline void __buffer_unlink(struct journal_head *jh)  in __buffer_unlink()  argument
32 	transaction_t *transaction = jh->b_cp_transaction;  in __buffer_unlink()
34 	jh->b_cpnext->b_cpprev = jh->b_cpprev;  in __buffer_unlink()
35 	jh->b_cpprev->b_cpnext = jh->b_cpnext;  in __buffer_unlink()
36 	if (transaction->t_checkpoint_list == jh) {  in __buffer_unlink()
37 		transaction->t_checkpoint_list = jh->b_cpnext;  in __buffer_unlink()
38 		if (transaction->t_checkpoint_list == jh)  in __buffer_unlink()
156 	struct journal_head	*jh;  in jbd2_log_do_checkpoint()  local
198 		jh = transaction->t_checkpoint_list;  in jbd2_log_do_checkpoint()
199 		bh = jh2bh(jh);  in jbd2_log_do_checkpoint()
201 		if (jh->b_transaction != NULL) {  in jbd2_log_do_checkpoint()
202 			transaction_t *t = jh->b_transaction;  in jbd2_log_do_checkpoint()
256 			if (__jbd2_journal_remove_checkpoint(jh) ||  in jbd2_log_do_checkpoint()
273 			transaction->t_checkpoint_list = jh->b_cpnext;  in jbd2_log_do_checkpoint()
356 static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,  in journal_shrink_one_cp_list()  argument
361 	struct journal_head *next_jh = jh;  in journal_shrink_one_cp_list()
366 	if (!jh)  in journal_shrink_one_cp_list()
369 	last_jh = jh->b_cpprev;  in journal_shrink_one_cp_list()
371 		jh = next_jh;  in journal_shrink_one_cp_list()
372 		next_jh = jh->b_cpnext;  in journal_shrink_one_cp_list()
375 			ret = __jbd2_journal_remove_checkpoint(jh);  in journal_shrink_one_cp_list()
377 			ret = jbd2_journal_try_remove_checkpoint(jh);  in journal_shrink_one_cp_list()
393 	} while (jh != last_jh);  in journal_shrink_one_cp_list()
565 int __jbd2_journal_remove_checkpoint(struct journal_head *jh)  in __jbd2_journal_remove_checkpoint()  argument
571 	JBUFFER_TRACE(jh, "entry");  in __jbd2_journal_remove_checkpoint()
573 	transaction = jh->b_cp_transaction;  in __jbd2_journal_remove_checkpoint()
575 		JBUFFER_TRACE(jh, "not on transaction");  in __jbd2_journal_remove_checkpoint()
580 	JBUFFER_TRACE(jh, "removing from transaction");  in __jbd2_journal_remove_checkpoint()
582 	__buffer_unlink(jh);  in __jbd2_journal_remove_checkpoint()
583 	jh->b_cp_transaction = NULL;  in __jbd2_journal_remove_checkpoint()
585 	jbd2_journal_put_journal_head(jh);  in __jbd2_journal_remove_checkpoint()
626 int jbd2_journal_try_remove_checkpoint(struct journal_head *jh)  in jbd2_journal_try_remove_checkpoint()  argument
628 	struct buffer_head *bh = jh2bh(jh);  in jbd2_journal_try_remove_checkpoint()
630 	if (jh->b_transaction)  in jbd2_journal_try_remove_checkpoint()
645 	JBUFFER_TRACE(jh, "remove from checkpoint list");  in jbd2_journal_try_remove_checkpoint()
646 	return __jbd2_journal_remove_checkpoint(jh);  in jbd2_journal_try_remove_checkpoint()
657 void __jbd2_journal_insert_checkpoint(struct journal_head *jh,  in __jbd2_journal_insert_checkpoint()  argument
660 	JBUFFER_TRACE(jh, "entry");  in __jbd2_journal_insert_checkpoint()
661 	J_ASSERT_JH(jh, buffer_dirty(jh2bh(jh)) || buffer_jbddirty(jh2bh(jh)));  in __jbd2_journal_insert_checkpoint()
662 	J_ASSERT_JH(jh, jh->b_cp_transaction == NULL);  in __jbd2_journal_insert_checkpoint()
665 	jbd2_journal_grab_journal_head(jh2bh(jh));  in __jbd2_journal_insert_checkpoint()
666 	jh->b_cp_transaction = transaction;  in __jbd2_journal_insert_checkpoint()
669 		jh->b_cpnext = jh->b_cpprev = jh;  in __jbd2_journal_insert_checkpoint()
671 		jh->b_cpnext = transaction->t_checkpoint_list;  in __jbd2_journal_insert_checkpoint()
672 		jh->b_cpprev = transaction->t_checkpoint_list->b_cpprev;  in __jbd2_journal_insert_checkpoint()
673 		jh->b_cpprev->b_cpnext = jh;  in __jbd2_journal_insert_checkpoint()
674 		jh->b_cpnext->b_cpprev = jh;  in __jbd2_journal_insert_checkpoint()
676 	transaction->t_checkpoint_list = jh;  in __jbd2_journal_insert_checkpoint()