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()
396 void sunrpc_init_cache_detail(struct cache_detail *cd)  in sunrpc_init_cache_detail()  argument
398 	spin_lock_init(&cd->hash_lock);  in sunrpc_init_cache_detail()
399 	INIT_LIST_HEAD(&cd->queue);  in sunrpc_init_cache_detail()
401 	cd->nextcheck = 0;  in sunrpc_init_cache_detail()
402 	cd->entries = 0;  in sunrpc_init_cache_detail()
403 	atomic_set(&cd->writers, 0);  in sunrpc_init_cache_detail()
404 	cd->last_close = 0;  in sunrpc_init_cache_detail()
405 	cd->last_warn = -1;  in sunrpc_init_cache_detail()
406 	list_add(&cd->others, &cache_list);  in sunrpc_init_cache_detail()
414 void sunrpc_destroy_cache_detail(struct cache_detail *cd)  in sunrpc_destroy_cache_detail()  argument
416 	cache_purge(cd);  in sunrpc_destroy_cache_detail()
418 	spin_lock(&cd->hash_lock);  in sunrpc_destroy_cache_detail()
419 	if (current_detail == cd)  in sunrpc_destroy_cache_detail()
421 	list_del_init(&cd->others);  in sunrpc_destroy_cache_detail()
422 	spin_unlock(&cd->hash_lock);  in sunrpc_destroy_cache_detail()
835 			  loff_t *ppos, struct cache_detail *cd)  in cache_read()  argument
850 	while (rp->q.list.next != &cd->queue &&  in cache_read()
856 	if (rp->q.list.next == &cd->queue) {  in cache_read()
869 		err = cache_request(cd, rq);  in cache_read()
904 			cache_put(rq->item, cd);  in cache_read()
917 				 size_t count, struct cache_detail *cd)  in cache_do_downcall()  argument
926 	ret = cd->cache_parse(cd, kaddr, count);  in cache_do_downcall()
934 			      size_t count, struct cache_detail *cd)  in cache_downcall()  argument
948 	ret = cache_do_downcall(write_buf, buf, count, cd);  in cache_downcall()
956 			   struct cache_detail *cd)  in cache_write()  argument
962 	if (!cd->cache_parse)  in cache_write()
966 	ret = cache_downcall(mapping, buf, count, cd);  in cache_write()
975 			       struct cache_detail *cd)  in cache_poll()  argument
991 	for (cq= &rp->q; &cq->list != &cd->queue;  in cache_poll()
1003 		       struct cache_detail *cd)  in cache_ioctl()  argument
1017 	for (cq= &rp->q; &cq->list != &cd->queue;  in cache_ioctl()
1031 		      struct cache_detail *cd)  in cache_open()  argument
1035 	if (!cd || !try_module_get(cd->owner))  in cache_open()
1041 			module_put(cd->owner);  in cache_open()
1048 		list_add(&rp->q.list, &cd->queue);  in cache_open()
1052 		atomic_inc(&cd->writers);  in cache_open()
1058 			 struct cache_detail *cd)  in cache_release()  argument
1066 			for (cq= &rp->q; &cq->list != &cd->queue;  in cache_release()
1083 		atomic_dec(&cd->writers);  in cache_release()
1084 		cd->last_close = seconds_since_boot();  in cache_release()
1086 	module_put(cd->owner);  in cache_release()
1353 	struct cache_detail *cd = m->private;  in __cache_seq_start()  local
1360 	hlist_for_each_entry_rcu(ch, &cd->hash_table[hash], cache_list)  in __cache_seq_start()
1367 	} while(hash < cd->hash_size &&  in __cache_seq_start()
1368 		hlist_empty(&cd->hash_table[hash]));  in __cache_seq_start()
1369 	if (hash >= cd->hash_size)  in __cache_seq_start()
1373 				hlist_first_rcu(&cd->hash_table[hash])),  in __cache_seq_start()
1381 	struct cache_detail *cd = m->private;  in cache_seq_next()  local
1395 	while (hash < cd->hash_size &&  in cache_seq_next()
1396 	       hlist_empty(&cd->hash_table[hash])) {  in cache_seq_next()
1400 	if (hash >= cd->hash_size)  in cache_seq_next()
1404 				hlist_first_rcu(&cd->hash_table[hash])),  in cache_seq_next()
1432 	struct cache_detail *cd = m->private;  in c_show()  local
1435 		return cd->cache_show(m, cd, NULL);  in c_show()
1442 	if (cache_check_rcu(cd, cp, NULL))  in c_show()
1444 	else if (cache_is_expired(cd, cp))  in c_show()
1447 	return cd->cache_show(m, cd, cp);  in c_show()
1458 			struct cache_detail *cd)  in content_open()  argument
1463 	if (!cd || !try_module_get(cd->owner))  in content_open()
1468 		module_put(cd->owner);  in content_open()
1473 	seq->private = cd;  in content_open()
1478 		struct cache_detail *cd)  in content_release()  argument
1481 	module_put(cd->owner);  in content_release()
1486 			struct cache_detail *cd)  in open_flush()  argument
1488 	if (!cd || !try_module_get(cd->owner))  in open_flush()
1494 			struct cache_detail *cd)  in release_flush()  argument
1496 	module_put(cd->owner);  in release_flush()
1502 			  struct cache_detail *cd)  in read_flush()  argument
1508 			convert_to_wallclock(cd->flush_time));  in read_flush()
1514 			   struct cache_detail *cd)  in write_flush()  argument
1541 	if (cd->flush_time >= now)  in write_flush()
1542 		now = cd->flush_time + 1;  in write_flush()
1544 	cd->flush_time = now;  in write_flush()
1545 	cd->nextcheck = now;  in write_flush()
1548 	if (cd->flush)  in write_flush()
1549 		cd->flush();  in write_flush()
1558 	struct cache_detail *cd = pde_data(file_inode(filp));  in cache_read_procfs()  local
1560 	return cache_read(filp, buf, count, ppos, cd);  in cache_read_procfs()
1566 	struct cache_detail *cd = pde_data(file_inode(filp));  in cache_write_procfs()  local
1568 	return cache_write(filp, buf, count, ppos, cd);  in cache_write_procfs()
1573 	struct cache_detail *cd = pde_data(file_inode(filp));  in cache_poll_procfs()  local
1575 	return cache_poll(filp, wait, cd);  in cache_poll_procfs()
1582 	struct cache_detail *cd = pde_data(inode);  in cache_ioctl_procfs()  local
1584 	return cache_ioctl(inode, filp, cmd, arg, cd);  in cache_ioctl_procfs()
1589 	struct cache_detail *cd = pde_data(inode);  in cache_open_procfs()  local
1591 	return cache_open(inode, filp, cd);  in cache_open_procfs()
1596 	struct cache_detail *cd = pde_data(inode);  in cache_release_procfs()  local
1598 	return cache_release(inode, filp, cd);  in cache_release_procfs()
1612 	struct cache_detail *cd = pde_data(inode);  in content_open_procfs()  local
1614 	return content_open(inode, filp, cd);  in content_open_procfs()
1619 	struct cache_detail *cd = pde_data(inode);  in content_release_procfs()  local
1621 	return content_release(inode, filp, cd);  in content_release_procfs()
1633 	struct cache_detail *cd = pde_data(inode);  in open_flush_procfs()  local
1635 	return open_flush(inode, filp, cd);  in open_flush_procfs()
1640 	struct cache_detail *cd = pde_data(inode);  in release_flush_procfs()  local
1642 	return release_flush(inode, filp, cd);  in release_flush_procfs()
1648 	struct cache_detail *cd = pde_data(file_inode(filp));  in read_flush_procfs()  local
1650 	return read_flush(filp, buf, count, ppos, cd);  in read_flush_procfs()
1657 	struct cache_detail *cd = pde_data(file_inode(filp));  in write_flush_procfs()  local
1659 	return write_flush(filp, buf, count, ppos, cd);  in write_flush_procfs()
1669 static void remove_cache_proc_entries(struct cache_detail *cd)  in remove_cache_proc_entries()  argument
1671 	if (cd->procfs) {  in remove_cache_proc_entries()
1672 		proc_remove(cd->procfs);  in remove_cache_proc_entries()
1673 		cd->procfs = NULL;  in remove_cache_proc_entries()
1677 static int create_cache_proc_entries(struct cache_detail *cd, struct net *net)  in create_cache_proc_entries()  argument
1686 	cd->procfs = proc_mkdir(cd->name, sn->proc_net_rpc);  in create_cache_proc_entries()
1687 	if (cd->procfs == NULL)  in create_cache_proc_entries()
1691 			     cd->procfs, &cache_flush_proc_ops, cd);  in create_cache_proc_entries()
1695 	if (cd->cache_request || cd->cache_parse) {  in create_cache_proc_entries()
1696 		p = proc_create_data("channel", S_IFREG | 0600, cd->procfs,  in create_cache_proc_entries()
1697 				     &cache_channel_proc_ops, cd);  in create_cache_proc_entries()
1701 	if (cd->cache_show) {  in create_cache_proc_entries()
1702 		p = proc_create_data("content", S_IFREG | 0400, cd->procfs,  in create_cache_proc_entries()
1703 				     &content_proc_ops, cd);  in create_cache_proc_entries()
1709 	remove_cache_proc_entries(cd);  in create_cache_proc_entries()
1718 int cache_register_net(struct cache_detail *cd, struct net *net)  in cache_register_net()  argument
1722 	sunrpc_init_cache_detail(cd);  in cache_register_net()
1723 	ret = create_cache_proc_entries(cd, net);  in cache_register_net()
1725 		sunrpc_destroy_cache_detail(cd);  in cache_register_net()
1730 void cache_unregister_net(struct cache_detail *cd, struct net *net)  in cache_unregister_net()  argument
1732 	remove_cache_proc_entries(cd);  in cache_unregister_net()
1733 	sunrpc_destroy_cache_detail(cd);  in cache_unregister_net()
1739 	struct cache_detail *cd;  in cache_create_net()  local
1742 	cd = kmemdup(tmpl, sizeof(struct cache_detail), GFP_KERNEL);  in cache_create_net()
1743 	if (cd == NULL)  in cache_create_net()
1746 	cd->hash_table = kcalloc(cd->hash_size, sizeof(struct hlist_head),  in cache_create_net()
1748 	if (cd->hash_table == NULL) {  in cache_create_net()
1749 		kfree(cd);  in cache_create_net()
1753 	for (i = 0; i < cd->hash_size; i++)  in cache_create_net()
1754 		INIT_HLIST_HEAD(&cd->hash_table[i]);  in cache_create_net()
1755 	cd->net = net;  in cache_create_net()
1756 	return cd;  in cache_create_net()
1760 void cache_destroy_net(struct cache_detail *cd, struct net *net)  in cache_destroy_net()  argument
1762 	kfree(cd->hash_table);  in cache_destroy_net()
1763 	kfree(cd);  in cache_destroy_net()
1770 	struct cache_detail *cd = RPC_I(file_inode(filp))->private;  in cache_read_pipefs()  local
1772 	return cache_read(filp, buf, count, ppos, cd);  in cache_read_pipefs()
1778 	struct cache_detail *cd = RPC_I(file_inode(filp))->private;  in cache_write_pipefs()  local
1780 	return cache_write(filp, buf, count, ppos, cd);  in cache_write_pipefs()
1785 	struct cache_detail *cd = RPC_I(file_inode(filp))->private;  in cache_poll_pipefs()  local
1787 	return cache_poll(filp, wait, cd);  in cache_poll_pipefs()
1794 	struct cache_detail *cd = RPC_I(inode)->private;  in cache_ioctl_pipefs()  local
1796 	return cache_ioctl(inode, filp, cmd, arg, cd);  in cache_ioctl_pipefs()
1801 	struct cache_detail *cd = RPC_I(inode)->private;  in cache_open_pipefs()  local
1803 	return cache_open(inode, filp, cd);  in cache_open_pipefs()
1808 	struct cache_detail *cd = RPC_I(inode)->private;  in cache_release_pipefs()  local
1810 	return cache_release(inode, filp, cd);  in cache_release_pipefs()
1825 	struct cache_detail *cd = RPC_I(inode)->private;  in content_open_pipefs()  local
1827 	return content_open(inode, filp, cd);  in content_open_pipefs()
1832 	struct cache_detail *cd = RPC_I(inode)->private;  in content_release_pipefs()  local
1834 	return content_release(inode, filp, cd);  in content_release_pipefs()
1846 	struct cache_detail *cd = RPC_I(inode)->private;  in open_flush_pipefs()  local
1848 	return open_flush(inode, filp, cd);  in open_flush_pipefs()
1853 	struct cache_detail *cd = RPC_I(inode)->private;  in release_flush_pipefs()  local
1855 	return release_flush(inode, filp, cd);  in release_flush_pipefs()
1861 	struct cache_detail *cd = RPC_I(file_inode(filp))->private;  in read_flush_pipefs()  local
1863 	return read_flush(filp, buf, count, ppos, cd);  in read_flush_pipefs()
1870 	struct cache_detail *cd = RPC_I(file_inode(filp))->private;  in write_flush_pipefs()  local
1872 	return write_flush(filp, buf, count, ppos, cd);  in write_flush_pipefs()
1884 				 struct cache_detail *cd)  in sunrpc_cache_register_pipefs()  argument
1886 	struct dentry *dir = rpc_create_cache_dir(parent, name, umode, cd);  in sunrpc_cache_register_pipefs()
1889 	cd->pipefs = dir;  in sunrpc_cache_register_pipefs()
1894 void sunrpc_cache_unregister_pipefs(struct cache_detail *cd)  in sunrpc_cache_unregister_pipefs()  argument
1896 	if (cd->pipefs) {  in sunrpc_cache_unregister_pipefs()
1897 		rpc_remove_cache_dir(cd->pipefs);  in sunrpc_cache_unregister_pipefs()
1898 		cd->pipefs = NULL;  in sunrpc_cache_unregister_pipefs()
1903 void sunrpc_cache_unhash(struct cache_detail *cd, struct cache_head *h)  in sunrpc_cache_unhash()  argument
1905 	spin_lock(&cd->hash_lock);  in sunrpc_cache_unhash()
1907 		sunrpc_begin_cache_remove_entry(h, cd);  in sunrpc_cache_unhash()
1908 		spin_unlock(&cd->hash_lock);  in sunrpc_cache_unhash()
1909 		sunrpc_end_cache_remove_entry(h, cd);  in sunrpc_cache_unhash()
1911 		spin_unlock(&cd->hash_lock);  in sunrpc_cache_unhash()