Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Conflicts were easy to resolve using immediate context mostly,
except the cls_u32.c one where I simply too the entire HEAD
chunk.

Signed-off-by: David S. Miller <davem@davemloft.net>

fs/afs/cell.c

@@ -514,6 +514,8 @@ static int afs_alloc_anon_key(struct afs_cell *cell)
  */
 static int afs_activate_cell(struct afs_net *net, struct afs_cell *cell)
 {
+	struct hlist_node **p;
+	struct afs_cell *pcell;
 	int ret;
 
 	if (!cell->anonymous_key) {
@@ -534,7 +536,18 @@ static int afs_activate_cell(struct afs_net *net, struct afs_cell *cell)
 		return ret;
 
 	mutex_lock(&net->proc_cells_lock);
-	list_add_tail(&cell->proc_link, &net->proc_cells);
+	for (p = &net->proc_cells.first; *p; p = &(*p)->next) {
+		pcell = hlist_entry(*p, struct afs_cell, proc_link);
+		if (strcmp(cell->name, pcell->name) < 0)
+			break;
+	}
+
+	cell->proc_link.pprev = p;
+	cell->proc_link.next = *p;
+	rcu_assign_pointer(*p, &cell->proc_link.next);
+	if (cell->proc_link.next)
+		cell->proc_link.next->pprev = &cell->proc_link.next;
+
 	afs_dynroot_mkdir(net, cell);
 	mutex_unlock(&net->proc_cells_lock);
 	return 0;
@@ -550,7 +563,7 @@ static void afs_deactivate_cell(struct afs_net *net, struct afs_cell *cell)
 	afs_proc_cell_remove(cell);
 
 	mutex_lock(&net->proc_cells_lock);
-	list_del_init(&cell->proc_link);
+	hlist_del_rcu(&cell->proc_link);
 	afs_dynroot_rmdir(net, cell);
 	mutex_unlock(&net->proc_cells_lock);
 

fs/afs/dynroot.c

@@ -265,7 +265,7 @@ int afs_dynroot_populate(struct super_block *sb)
 		return -ERESTARTSYS;
 
 	net->dynroot_sb = sb;
-	list_for_each_entry(cell, &net->proc_cells, proc_link) {
+	hlist_for_each_entry(cell, &net->proc_cells, proc_link) {
 		ret = afs_dynroot_mkdir(net, cell);
 		if (ret < 0)
 			goto error;

fs/afs/internal.h

@@ -244,7 +244,7 @@ struct afs_net {
 	seqlock_t		cells_lock;
 
 	struct mutex		proc_cells_lock;
-	struct list_head	proc_cells;
+	struct hlist_head	proc_cells;
 
 	/* Known servers.  Theoretically each fileserver can only be in one
 	 * cell, but in practice, people create aliases and subsets and there's
@@ -322,7 +322,7 @@ struct afs_cell {
 	struct afs_net		*net;
 	struct key		*anonymous_key;	/* anonymous user key for this cell */
 	struct work_struct	manager;	/* Manager for init/deinit/dns */
-	struct list_head	proc_link;	/* /proc cell list link */
+	struct hlist_node	proc_link;	/* /proc cell list link */
 #ifdef CONFIG_AFS_FSCACHE
 	struct fscache_cookie	*cache;		/* caching cookie */
 #endif

fs/afs/main.c

@@ -87,7 +87,7 @@ static int __net_init afs_net_init(struct net *net_ns)
 	timer_setup(&net->cells_timer, afs_cells_timer, 0);
 
 	mutex_init(&net->proc_cells_lock);
-	INIT_LIST_HEAD(&net->proc_cells);
+	INIT_HLIST_HEAD(&net->proc_cells);
 
 	seqlock_init(&net->fs_lock);
 	net->fs_servers = RB_ROOT;

fs/afs/proc.c

@@ -33,9 +33,8 @@ static inline struct afs_net *afs_seq2net_single(struct seq_file *m)
 static int afs_proc_cells_show(struct seq_file *m, void *v)
 {
 	struct afs_cell *cell = list_entry(v, struct afs_cell, proc_link);
-	struct afs_net *net = afs_seq2net(m);
 
-	if (v == &net->proc_cells) {
+	if (v == SEQ_START_TOKEN) {
 		/* display header on line 1 */
 		seq_puts(m, "USE NAME\n");
 		return 0;
@@ -50,12 +49,12 @@ static void *afs_proc_cells_start(struct seq_file *m, loff_t *_pos)
 	__acquires(rcu)
 {
 	rcu_read_lock();
-	return seq_list_start_head(&afs_seq2net(m)->proc_cells, *_pos);
+	return seq_hlist_start_head_rcu(&afs_seq2net(m)->proc_cells, *_pos);
 }
 
 static void *afs_proc_cells_next(struct seq_file *m, void *v, loff_t *pos)
 {
-	return seq_list_next(v, &afs_seq2net(m)->proc_cells, pos);
+	return seq_hlist_next_rcu(v, &afs_seq2net(m)->proc_cells, pos);
 }
 
 static void afs_proc_cells_stop(struct seq_file *m, void *v)

fs/afs/server.c

@@ -199,9 +199,11 @@ static struct afs_server *afs_install_server(struct afs_net *net,
 
 	write_sequnlock(&net->fs_addr_lock);
 	ret = 0;
+	goto out;
 
 exists:
 	afs_get_server(server);
+out:
 	write_sequnlock(&net->fs_lock);
 	return server;
 }