summaryrefslogtreecommitdiff
path: root/fs/nfs/client.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/nfs/client.c')
-rw-r--r--fs/nfs/client.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 22880ef6d8dd..b9129e2befea 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -163,7 +163,7 @@ struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init)
clp->rpc_ops = clp->cl_nfs_mod->rpc_ops;
- atomic_set(&clp->cl_count, 1);
+ refcount_set(&clp->cl_count, 1);
clp->cl_cons_state = NFS_CS_INITING;
memcpy(&clp->cl_addr, cl_init->addr, cl_init->addrlen);
@@ -269,7 +269,7 @@ void nfs_put_client(struct nfs_client *clp)
nn = net_generic(clp->cl_net, nfs_net_id);
- if (atomic_dec_and_lock(&clp->cl_count, &nn->nfs_client_lock)) {
+ if (refcount_dec_and_lock(&clp->cl_count, &nn->nfs_client_lock)) {
list_del(&clp->cl_share_link);
nfs_cb_idr_remove_locked(clp);
spin_unlock(&nn->nfs_client_lock);
@@ -291,12 +291,23 @@ static struct nfs_client *nfs_match_client(const struct nfs_client_initdata *dat
const struct sockaddr *sap = data->addr;
struct nfs_net *nn = net_generic(data->net, nfs_net_id);
+again:
list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) {
const struct sockaddr *clap = (struct sockaddr *)&clp->cl_addr;
/* Don't match clients that failed to initialise properly */
if (clp->cl_cons_state < 0)
continue;
+ /* If a client is still initializing then we need to wait */
+ if (clp->cl_cons_state > NFS_CS_READY) {
+ refcount_inc(&clp->cl_count);
+ spin_unlock(&nn->nfs_client_lock);
+ nfs_wait_client_init_complete(clp);
+ nfs_put_client(clp);
+ spin_lock(&nn->nfs_client_lock);
+ goto again;
+ }
+
/* Different NFS versions cannot share the same nfs_client */
if (clp->rpc_ops != data->nfs_mod->rpc_ops)
continue;
@@ -314,7 +325,7 @@ static struct nfs_client *nfs_match_client(const struct nfs_client_initdata *dat
sap))
continue;
- atomic_inc(&clp->cl_count);
+ refcount_inc(&clp->cl_count);
return clp;
}
return NULL;
@@ -1006,7 +1017,7 @@ struct nfs_server *nfs_clone_server(struct nfs_server *source,
/* Copy data from the source */
server->nfs_client = source->nfs_client;
server->destroy = source->destroy;
- atomic_inc(&server->nfs_client->cl_count);
+ refcount_inc(&server->nfs_client->cl_count);
nfs_server_copy_userdata(server, source);
server->fsid = fattr->fsid;
@@ -1166,7 +1177,7 @@ static int nfs_server_list_show(struct seq_file *m, void *v)
clp->rpc_ops->version,
rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_ADDR),
rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_PORT),
- atomic_read(&clp->cl_count),
+ refcount_read(&clp->cl_count),
clp->cl_hostname);
rcu_read_unlock();