84 					    struct cache_detail *cd)  in sunrpc_begin_cache_remove_entry()  argument
86 	/* Must be called under cd->hash_lock */  in sunrpc_begin_cache_remove_entry()
89 	cd->entries --;  in sunrpc_begin_cache_remove_entry()
93 					  struct cache_detail *cd)  in sunrpc_end_cache_remove_entry()  argument
95 	cache_fresh_unlocked(ch, cd);  in sunrpc_end_cache_remove_entry()
96 	cache_put(ch, cd);  in sunrpc_end_cache_remove_entry()
385 void sunrpc_init_cache_detail(struct cache_detail *cd)  in sunrpc_init_cache_detail()  argument
387 	spin_lock_init(&cd->hash_lock);  in sunrpc_init_cache_detail()
388 	INIT_LIST_HEAD(&cd->queue);  in sunrpc_init_cache_detail()
390 	cd->nextcheck = 0;  in sunrpc_init_cache_detail()
391 	cd->entries = 0;  in sunrpc_init_cache_detail()
392 	atomic_set(&cd->writers, 0);  in sunrpc_init_cache_detail()
393 	cd->last_close = 0;  in sunrpc_init_cache_detail()
394 	cd->last_warn = -1;  in sunrpc_init_cache_detail()
395 	list_add(&cd->others, &cache_list);  in sunrpc_init_cache_detail()
403 void sunrpc_destroy_cache_detail(struct cache_detail *cd)  in sunrpc_destroy_cache_detail()  argument
405 	cache_purge(cd);  in sunrpc_destroy_cache_detail()
407 	spin_lock(&cd->hash_lock);  in sunrpc_destroy_cache_detail()
408 	if (current_detail == cd)  in sunrpc_destroy_cache_detail()
410 	list_del_init(&cd->others);  in sunrpc_destroy_cache_detail()
411 	spin_unlock(&cd->hash_lock);  in sunrpc_destroy_cache_detail()
824 			  loff_t *ppos, struct cache_detail *cd)  in cache_read()  argument
839 	while (rp->q.list.next != &cd->queue &&  in cache_read()
845 	if (rp->q.list.next == &cd->queue) {  in cache_read()
858 		err = cache_request(cd, rq);  in cache_read()
893 			cache_put(rq->item, cd);  in cache_read()
906 				 size_t count, struct cache_detail *cd)  in cache_do_downcall()  argument
915 	ret = cd->cache_parse(cd, kaddr, count);  in cache_do_downcall()
923 			      size_t count, struct cache_detail *cd)  in cache_downcall()  argument
937 	ret = cache_do_downcall(write_buf, buf, count, cd);  in cache_downcall()
945 			   struct cache_detail *cd)  in cache_write()  argument
951 	if (!cd->cache_parse)  in cache_write()
955 	ret = cache_downcall(mapping, buf, count, cd);  in cache_write()
964 			       struct cache_detail *cd)  in cache_poll()  argument
980 	for (cq= &rp->q; &cq->list != &cd->queue;  in cache_poll()
992 		       struct cache_detail *cd)  in cache_ioctl()  argument
1006 	for (cq= &rp->q; &cq->list != &cd->queue;  in cache_ioctl()
1020 		      struct cache_detail *cd)  in cache_open()  argument
1024 	if (!cd || !try_module_get(cd->owner))  in cache_open()
1030 			module_put(cd->owner);  in cache_open()
1037 		list_add(&rp->q.list, &cd->queue);  in cache_open()
1041 		atomic_inc(&cd->writers);  in cache_open()
1047 			 struct cache_detail *cd)  in cache_release()  argument
1055 			for (cq= &rp->q; &cq->list != &cd->queue;  in cache_release()
1072 		atomic_dec(&cd->writers);  in cache_release()
1073 		cd->last_close = seconds_since_boot();  in cache_release()
1075 	module_put(cd->owner);  in cache_release()
1342 	struct cache_detail *cd = m->private;  in __cache_seq_start()  local
1349 	hlist_for_each_entry_rcu(ch, &cd->hash_table[hash], cache_list)  in __cache_seq_start()
1356 	} while(hash < cd->hash_size &&  in __cache_seq_start()
1357 		hlist_empty(&cd->hash_table[hash]));  in __cache_seq_start()
1358 	if (hash >= cd->hash_size)  in __cache_seq_start()
1362 				hlist_first_rcu(&cd->hash_table[hash])),  in __cache_seq_start()
1370 	struct cache_detail *cd = m->private;  in cache_seq_next()  local
1384 	while (hash < cd->hash_size &&  in cache_seq_next()
1385 	       hlist_empty(&cd->hash_table[hash])) {  in cache_seq_next()
1389 	if (hash >= cd->hash_size)  in cache_seq_next()
1393 				hlist_first_rcu(&cd->hash_table[hash])),  in cache_seq_next()
1421 	struct cache_detail *cd = m->private;  in c_show()  local
1424 		return cd->cache_show(m, cd, NULL);  in c_show()
1431 	if (cache_check(cd, cp, NULL))  in c_show()
1435 		if (cache_is_expired(cd, cp))  in c_show()
1437 		cache_put(cp, cd);  in c_show()
1440 	return cd->cache_show(m, cd, cp);  in c_show()
1451 			struct cache_detail *cd)  in content_open()  argument
1456 	if (!cd || !try_module_get(cd->owner))  in content_open()
1461 		module_put(cd->owner);  in content_open()
1466 	seq->private = cd;  in content_open()
1471 		struct cache_detail *cd)  in content_release()  argument
1474 	module_put(cd->owner);  in content_release()
1479 			struct cache_detail *cd)  in open_flush()  argument
1481 	if (!cd || !try_module_get(cd->owner))  in open_flush()
1487 			struct cache_detail *cd)  in release_flush()  argument
1489 	module_put(cd->owner);  in release_flush()
1495 			  struct cache_detail *cd)  in read_flush()  argument
1501 			convert_to_wallclock(cd->flush_time));  in read_flush()
1507 			   struct cache_detail *cd)  in write_flush()  argument
1534 	if (cd->flush_time >= now)  in write_flush()
1535 		now = cd->flush_time + 1;  in write_flush()
1537 	cd->flush_time = now;  in write_flush()
1538 	cd->nextcheck = now;  in write_flush()
1541 	if (cd->flush)  in write_flush()
1542 		cd->flush();  in write_flush()
1551 	struct cache_detail *cd = pde_data(file_inode(filp));  in cache_read_procfs()  local
1553 	return cache_read(filp, buf, count, ppos, cd);  in cache_read_procfs()
1559 	struct cache_detail *cd = pde_data(file_inode(filp));  in cache_write_procfs()  local
1561 	return cache_write(filp, buf, count, ppos, cd);  in cache_write_procfs()
1566 	struct cache_detail *cd = pde_data(file_inode(filp));  in cache_poll_procfs()  local
1568 	return cache_poll(filp, wait, cd);  in cache_poll_procfs()
1575 	struct cache_detail *cd = pde_data(inode);  in cache_ioctl_procfs()  local
1577 	return cache_ioctl(inode, filp, cmd, arg, cd);  in cache_ioctl_procfs()
1582 	struct cache_detail *cd = pde_data(inode);  in cache_open_procfs()  local
1584 	return cache_open(inode, filp, cd);  in cache_open_procfs()
1589 	struct cache_detail *cd = pde_data(inode);  in cache_release_procfs()  local
1591 	return cache_release(inode, filp, cd);  in cache_release_procfs()
1605 	struct cache_detail *cd = pde_data(inode);  in content_open_procfs()  local
1607 	return content_open(inode, filp, cd);  in content_open_procfs()
1612 	struct cache_detail *cd = pde_data(inode);  in content_release_procfs()  local
1614 	return content_release(inode, filp, cd);  in content_release_procfs()
1626 	struct cache_detail *cd = pde_data(inode);  in open_flush_procfs()  local
1628 	return open_flush(inode, filp, cd);  in open_flush_procfs()
1633 	struct cache_detail *cd = pde_data(inode);  in release_flush_procfs()  local
1635 	return release_flush(inode, filp, cd);  in release_flush_procfs()
1641 	struct cache_detail *cd = pde_data(file_inode(filp));  in read_flush_procfs()  local
1643 	return read_flush(filp, buf, count, ppos, cd);  in read_flush_procfs()
1650 	struct cache_detail *cd = pde_data(file_inode(filp));  in write_flush_procfs()  local
1652 	return write_flush(filp, buf, count, ppos, cd);  in write_flush_procfs()
1662 static void remove_cache_proc_entries(struct cache_detail *cd)  in remove_cache_proc_entries()  argument
1664 	if (cd->procfs) {  in remove_cache_proc_entries()
1665 		proc_remove(cd->procfs);  in remove_cache_proc_entries()
1666 		cd->procfs = NULL;  in remove_cache_proc_entries()
1671 static int create_cache_proc_entries(struct cache_detail *cd, struct net *net)  in create_cache_proc_entries()  argument
1677 	cd->procfs = proc_mkdir(cd->name, sn->proc_net_rpc);  in create_cache_proc_entries()
1678 	if (cd->procfs == NULL)  in create_cache_proc_entries()
1682 			     cd->procfs, &cache_flush_proc_ops, cd);  in create_cache_proc_entries()
1686 	if (cd->cache_request || cd->cache_parse) {  in create_cache_proc_entries()
1687 		p = proc_create_data("channel", S_IFREG | 0600, cd->procfs,  in create_cache_proc_entries()
1688 				     &cache_channel_proc_ops, cd);  in create_cache_proc_entries()
1692 	if (cd->cache_show) {  in create_cache_proc_entries()
1693 		p = proc_create_data("content", S_IFREG | 0400, cd->procfs,  in create_cache_proc_entries()
1694 				     &content_proc_ops, cd);  in create_cache_proc_entries()
1700 	remove_cache_proc_entries(cd);  in create_cache_proc_entries()
1704 static int create_cache_proc_entries(struct cache_detail *cd, struct net *net)  in create_cache_proc_entries()  argument
1715 int cache_register_net(struct cache_detail *cd, struct net *net)  in cache_register_net()  argument
1719 	sunrpc_init_cache_detail(cd);  in cache_register_net()
1720 	ret = create_cache_proc_entries(cd, net);  in cache_register_net()
1722 		sunrpc_destroy_cache_detail(cd);  in cache_register_net()
1727 void cache_unregister_net(struct cache_detail *cd, struct net *net)  in cache_unregister_net()  argument
1729 	remove_cache_proc_entries(cd);  in cache_unregister_net()
1730 	sunrpc_destroy_cache_detail(cd);  in cache_unregister_net()
1736 	struct cache_detail *cd;  in cache_create_net()  local
1739 	cd = kmemdup(tmpl, sizeof(struct cache_detail), GFP_KERNEL);  in cache_create_net()
1740 	if (cd == NULL)  in cache_create_net()
1743 	cd->hash_table = kcalloc(cd->hash_size, sizeof(struct hlist_head),  in cache_create_net()
1745 	if (cd->hash_table == NULL) {  in cache_create_net()
1746 		kfree(cd);  in cache_create_net()
1750 	for (i = 0; i < cd->hash_size; i++)  in cache_create_net()
1751 		INIT_HLIST_HEAD(&cd->hash_table[i]);  in cache_create_net()
1752 	cd->net = net;  in cache_create_net()
1753 	return cd;  in cache_create_net()
1757 void cache_destroy_net(struct cache_detail *cd, struct net *net)  in cache_destroy_net()  argument
1759 	kfree(cd->hash_table);  in cache_destroy_net()
1760 	kfree(cd);  in cache_destroy_net()
1767 	struct cache_detail *cd = RPC_I(file_inode(filp))->private;  in cache_read_pipefs()  local
1769 	return cache_read(filp, buf, count, ppos, cd);  in cache_read_pipefs()
1775 	struct cache_detail *cd = RPC_I(file_inode(filp))->private;  in cache_write_pipefs()  local
1777 	return cache_write(filp, buf, count, ppos, cd);  in cache_write_pipefs()
1782 	struct cache_detail *cd = RPC_I(file_inode(filp))->private;  in cache_poll_pipefs()  local
1784 	return cache_poll(filp, wait, cd);  in cache_poll_pipefs()
1791 	struct cache_detail *cd = RPC_I(inode)->private;  in cache_ioctl_pipefs()  local
1793 	return cache_ioctl(inode, filp, cmd, arg, cd);  in cache_ioctl_pipefs()
1798 	struct cache_detail *cd = RPC_I(inode)->private;  in cache_open_pipefs()  local
1800 	return cache_open(inode, filp, cd);  in cache_open_pipefs()
1805 	struct cache_detail *cd = RPC_I(inode)->private;  in cache_release_pipefs()  local
1807 	return cache_release(inode, filp, cd);  in cache_release_pipefs()
1822 	struct cache_detail *cd = RPC_I(inode)->private;  in content_open_pipefs()  local
1824 	return content_open(inode, filp, cd);  in content_open_pipefs()
1829 	struct cache_detail *cd = RPC_I(inode)->private;  in content_release_pipefs()  local
1831 	return content_release(inode, filp, cd);  in content_release_pipefs()
1843 	struct cache_detail *cd = RPC_I(inode)->private;  in open_flush_pipefs()  local
1845 	return open_flush(inode, filp, cd);  in open_flush_pipefs()
1850 	struct cache_detail *cd = RPC_I(inode)->private;  in release_flush_pipefs()  local
1852 	return release_flush(inode, filp, cd);  in release_flush_pipefs()
1858 	struct cache_detail *cd = RPC_I(file_inode(filp))->private;  in read_flush_pipefs()  local
1860 	return read_flush(filp, buf, count, ppos, cd);  in read_flush_pipefs()
1867 	struct cache_detail *cd = RPC_I(file_inode(filp))->private;  in write_flush_pipefs()  local
1869 	return write_flush(filp, buf, count, ppos, cd);  in write_flush_pipefs()
1881 				 struct cache_detail *cd)  in sunrpc_cache_register_pipefs()  argument
1883 	struct dentry *dir = rpc_create_cache_dir(parent, name, umode, cd);  in sunrpc_cache_register_pipefs()
1886 	cd->pipefs = dir;  in sunrpc_cache_register_pipefs()
1891 void sunrpc_cache_unregister_pipefs(struct cache_detail *cd)  in sunrpc_cache_unregister_pipefs()  argument
1893 	if (cd->pipefs) {  in sunrpc_cache_unregister_pipefs()
1894 		rpc_remove_cache_dir(cd->pipefs);  in sunrpc_cache_unregister_pipefs()
1895 		cd->pipefs = NULL;  in sunrpc_cache_unregister_pipefs()
1900 void sunrpc_cache_unhash(struct cache_detail *cd, struct cache_head *h)  in sunrpc_cache_unhash()  argument
1902 	spin_lock(&cd->hash_lock);  in sunrpc_cache_unhash()
1904 		sunrpc_begin_cache_remove_entry(h, cd);  in sunrpc_cache_unhash()
1905 		spin_unlock(&cd->hash_lock);  in sunrpc_cache_unhash()
1906 		sunrpc_end_cache_remove_entry(h, cd);  in sunrpc_cache_unhash()
1908 		spin_unlock(&cd->hash_lock);  in sunrpc_cache_unhash()