2416 static void journal_free_journal_head(struct journal_head *jh)  in journal_free_journal_head()  argument
2420 	memset(jh, JBD2_POISON_FREE, sizeof(*jh));  in journal_free_journal_head()
2422 	kmem_cache_free(jbd2_journal_head_cache, jh);  in journal_free_journal_head()
2468 	struct journal_head *jh;  in jbd2_journal_add_journal_head()  local
2477 		jh = bh2jh(bh);  in jbd2_journal_add_journal_head()
2488 		jh = new_jh;  in jbd2_journal_add_journal_head()
2491 		bh->b_private = jh;  in jbd2_journal_add_journal_head()
2492 		jh->b_bh = bh;  in jbd2_journal_add_journal_head()
2496 	jh->b_jcount++;  in jbd2_journal_add_journal_head()
2509 	struct journal_head *jh = NULL;  in jbd2_journal_grab_journal_head()  local
2513 		jh = bh2jh(bh);  in jbd2_journal_grab_journal_head()
2514 		jh->b_jcount++;  in jbd2_journal_grab_journal_head()
2517 	return jh;  in jbd2_journal_grab_journal_head()
2522 	struct journal_head *jh = bh2jh(bh);  in __journal_remove_journal_head()  local
2524 	J_ASSERT_JH(jh, jh->b_jcount >= 0);  in __journal_remove_journal_head()
2525 	J_ASSERT_JH(jh, jh->b_transaction == NULL);  in __journal_remove_journal_head()
2526 	J_ASSERT_JH(jh, jh->b_next_transaction == NULL);  in __journal_remove_journal_head()
2527 	J_ASSERT_JH(jh, jh->b_cp_transaction == NULL);  in __journal_remove_journal_head()
2528 	J_ASSERT_JH(jh, jh->b_jlist == BJ_None);  in __journal_remove_journal_head()
2530 	J_ASSERT_BH(bh, jh2bh(jh) == bh);  in __journal_remove_journal_head()
2532 	if (jh->b_frozen_data) {  in __journal_remove_journal_head()
2534 		jbd2_free(jh->b_frozen_data, bh->b_size);  in __journal_remove_journal_head()
2536 	if (jh->b_committed_data) {  in __journal_remove_journal_head()
2538 		jbd2_free(jh->b_committed_data, bh->b_size);  in __journal_remove_journal_head()
2541 	jh->b_bh = NULL;	/* debug, really */  in __journal_remove_journal_head()
2543 	journal_free_journal_head(jh);  in __journal_remove_journal_head()
2550 void jbd2_journal_put_journal_head(struct journal_head *jh)  in jbd2_journal_put_journal_head()  argument
2552 	struct buffer_head *bh = jh2bh(jh);  in jbd2_journal_put_journal_head()
2555 	J_ASSERT_JH(jh, jh->b_jcount > 0);  in jbd2_journal_put_journal_head()
2556 	--jh->b_jcount;  in jbd2_journal_put_journal_head()
2557 	if (!jh->b_jcount) {  in jbd2_journal_put_journal_head()