NFSv4.1 handle DS stateid errors

Handle DS READ and WRITE stateid errors by recovering the stateid on the MDS.

NFS4ERR_OLD_STATEID is ignored as the client always sends a
state sequenceid of zero for DS READ and WRITE stateids.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 1dad5c53c7fa..a58d02a0c27d 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1072,6 +1072,7 @@ void nfs4_schedule_lease_recovery(struct nfs_client *clp)
                 set_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state);
         nfs4_schedule_state_manager(clp);
 }
+EXPORT_SYMBOL_GPL(nfs4_schedule_lease_recovery);
 
 void nfs4_schedule_path_down_recovery(struct nfs_client *clp)
 {
@@ -1109,6 +1110,7 @@ void nfs4_schedule_stateid_recovery(const struct nfs_server *server, struct nfs4
         nfs4_state_mark_reclaim_nograce(clp, state);
         nfs4_schedule_state_manager(clp);
 }
+EXPORT_SYMBOL_GPL(nfs4_schedule_stateid_recovery);
 
 void nfs_inode_find_state_and_recover(struct inode *inode,
                 const nfs4_stateid *stateid)