NFSv4: SETCLIENTID_CONFIRM should handle NFS4ERR_DELAY/NFS4ERR_RESOURCE

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 19 insertions, 2 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 62aed077fc2a..31000326aba4 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2849,8 +2849,7 @@ int nfs4_proc_setclientid(struct nfs4_client *clp, u32 program, unsigned short p
         return status;
 }
 
-int
-nfs4_proc_setclientid_confirm(struct nfs4_client *clp, struct rpc_cred *cred)
+static int _nfs4_proc_setclientid_confirm(struct nfs4_client *clp, struct rpc_cred *cred)
 {
         struct nfs_fsinfo fsinfo;
         struct rpc_message msg = {
@@ -2874,6 +2873,24 @@ nfs4_proc_setclientid_confirm(struct nfs4_client *clp, struct rpc_cred *cred)
         return status;
 }
 
+int nfs4_proc_setclientid_confirm(struct nfs4_client *clp, struct rpc_cred *cred)
+{
+        long timeout;
+        int err;
+        do {
+                err = _nfs4_proc_setclientid_confirm(clp, cred);
+                switch (err) {
+                        case 0:
+                                return err;
+                        case -NFS4ERR_RESOURCE:
+                                /* The IBM lawyers misread another document! */
+                        case -NFS4ERR_DELAY:
+                                err = nfs4_delay(clp->cl_rpcclient, &timeout);
+                }
+        } while (err == 0);
+        return err;
+}
+
 struct nfs4_delegreturndata {
         struct nfs4_delegreturnargs args;
         struct nfs4_delegreturnres res;