nfs41: remove nfs4_recover_session

nfs4_recover_session can put rpciod to sleep. Just use nfs4_schedule_recovery.

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

1 files changed, 3 insertions, 23 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 68463d0ba9b3..fb62919f7f2c 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -436,24 +436,6 @@ out:
         return ret_id;
 }
 
-static int nfs4_recover_session(struct nfs4_session *session)
-{
-        struct nfs_client *clp = session->clp;
-        unsigned int loop;
-        int ret;
-
-        for (loop = NFS4_MAX_LOOP_ON_RECOVER; loop != 0; loop--) {
-                ret = nfs4_wait_clnt_recover(clp);
-                if (ret != 0)
-                        break;
-                if (!test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state))
-                        break;
-                nfs4_schedule_state_manager(clp);
-                ret = -EIO;
-        }
-        return ret;
-}
-
 static int nfs41_setup_sequence(struct nfs4_session *session,
                                 struct nfs4_sequence_args *args,
                                 struct nfs4_sequence_res *res,
@@ -462,7 +444,6 @@ static int nfs41_setup_sequence(struct nfs4_session *session,
 {
         struct nfs4_slot *slot;
         struct nfs4_slot_table *tbl;
-        int status = 0;
         u8 slotid;
 
         dprintk("--> %s\n", __func__);
@@ -485,11 +466,10 @@ static int nfs41_setup_sequence(struct nfs4_session *session,
 
                 /* The slot table is empty; start the reset thread */
                 dprintk("%s Session Reset\n", __func__);
+                rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
+                nfs4_schedule_state_manager(session->clp);
                 spin_unlock(&tbl->slot_tbl_lock);
-                status = nfs4_recover_session(session);
-                if (status)
-                        return status;
-                spin_lock(&tbl->slot_tbl_lock);
+                return -EAGAIN;
         }
 
         slotid = nfs4_find_slot(tbl, task);