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-rw-r--r--fs/afs/server.c53
1 files changed, 13 insertions, 40 deletions
diff --git a/fs/afs/server.c b/fs/afs/server.c
index b5237206ea..f7791ef136 100644
--- a/fs/afs/server.c
+++ b/fs/afs/server.c
@@ -21,13 +21,12 @@ static void __afs_put_server(struct afs_net *, struct afs_server *);
/*
* Find a server by one of its addresses.
*/
-struct afs_server *afs_find_server(struct afs_net *net,
- const struct sockaddr_rxrpc *srx)
+struct afs_server *afs_find_server(struct afs_net *net, const struct rxrpc_peer *peer)
{
const struct afs_addr_list *alist;
struct afs_server *server = NULL;
unsigned int i;
- int seq = 0, diff;
+ int seq = 1;
rcu_read_lock();
@@ -35,39 +34,14 @@ struct afs_server *afs_find_server(struct afs_net *net,
if (server)
afs_unuse_server_notime(net, server, afs_server_trace_put_find_rsq);
server = NULL;
+ seq++; /* 2 on the 1st/lockless path, otherwise odd */
read_seqbegin_or_lock(&net->fs_addr_lock, &seq);
- if (srx->transport.family == AF_INET6) {
- const struct sockaddr_in6 *a = &srx->transport.sin6, *b;
- hlist_for_each_entry_rcu(server, &net->fs_addresses6, addr6_link) {
- alist = rcu_dereference(server->addresses);
- for (i = alist->nr_ipv4; i < alist->nr_addrs; i++) {
- b = &alist->addrs[i].transport.sin6;
- diff = ((u16 __force)a->sin6_port -
- (u16 __force)b->sin6_port);
- if (diff == 0)
- diff = memcmp(&a->sin6_addr,
- &b->sin6_addr,
- sizeof(struct in6_addr));
- if (diff == 0)
- goto found;
- }
- }
- } else {
- const struct sockaddr_in *a = &srx->transport.sin, *b;
- hlist_for_each_entry_rcu(server, &net->fs_addresses4, addr4_link) {
- alist = rcu_dereference(server->addresses);
- for (i = 0; i < alist->nr_ipv4; i++) {
- b = &alist->addrs[i].transport.sin;
- diff = ((u16 __force)a->sin_port -
- (u16 __force)b->sin_port);
- if (diff == 0)
- diff = ((u32 __force)a->sin_addr.s_addr -
- (u32 __force)b->sin_addr.s_addr);
- if (diff == 0)
- goto found;
- }
- }
+ hlist_for_each_entry_rcu(server, &net->fs_addresses6, addr6_link) {
+ alist = rcu_dereference(server->addresses);
+ for (i = 0; i < alist->nr_addrs; i++)
+ if (alist->addrs[i].peer == peer)
+ goto found;
}
server = NULL;
@@ -90,7 +64,7 @@ struct afs_server *afs_find_server_by_uuid(struct afs_net *net, const uuid_t *uu
{
struct afs_server *server = NULL;
struct rb_node *p;
- int diff, seq = 0;
+ int diff, seq = 1;
_enter("%pU", uuid);
@@ -102,7 +76,7 @@ struct afs_server *afs_find_server_by_uuid(struct afs_net *net, const uuid_t *uu
if (server)
afs_unuse_server(net, server, afs_server_trace_put_uuid_rsq);
server = NULL;
-
+ seq++; /* 2 on the 1st/lockless path, otherwise odd */
read_seqbegin_or_lock(&net->fs_lock, &seq);
p = net->fs_servers.rb_node;
@@ -463,7 +437,6 @@ static void afs_give_up_callbacks(struct afs_net *net, struct afs_server *server
struct afs_addr_cursor ac = {
.alist = alist,
.index = alist->preferred,
- .error = 0,
};
afs_fs_give_up_all_callbacks(net, server, &ac, NULL);
@@ -655,8 +628,8 @@ static noinline bool afs_update_server_record(struct afs_operation *op,
_leave(" = t [intr]");
return true;
}
- op->error = PTR_ERR(alist);
- _leave(" = f [%d]", op->error);
+ afs_op_set_error(op, PTR_ERR(alist));
+ _leave(" = f [%d]", afs_op_error(op));
return false;
}
@@ -710,7 +683,7 @@ wait:
(op->flags & AFS_OPERATION_UNINTR) ?
TASK_UNINTERRUPTIBLE : TASK_INTERRUPTIBLE);
if (ret == -ERESTARTSYS) {
- op->error = ret;
+ afs_op_set_error(op, ret);
_leave(" = f [intr]");
return false;
}