diff options
| -rw-r--r-- | fs/nfs/super.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 7a318581f85b..4cd420b14ce3 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -1166,12 +1166,18 @@ static int nfs_set_super(struct super_block *s, struct fs_context *fc) static int nfs_compare_super_address(struct nfs_server *server1, struct nfs_server *server2) { + struct rpc_xprt *xprt1, *xprt2; struct sockaddr *sap1, *sap2; - struct rpc_xprt *xprt1 = server1->client->cl_xprt; - struct rpc_xprt *xprt2 = server2->client->cl_xprt; + + rcu_read_lock(); + + xprt1 = rcu_dereference(server1->client->cl_xprt); + xprt2 = rcu_dereference(server2->client->cl_xprt); if (!net_eq(xprt1->xprt_net, xprt2->xprt_net)) - return 0; + goto out_unlock; + + rcu_read_unlock(); sap1 = (struct sockaddr *)&server1->nfs_client->cl_addr; sap2 = (struct sockaddr *)&server2->nfs_client->cl_addr; @@ -1203,6 +1209,10 @@ static int nfs_compare_super_address(struct nfs_server *server1, } return 1; + +out_unlock: + rcu_read_unlock(); + return 0; } static int nfs_compare_userns(const struct nfs_server *old, |