3.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
commit df817ba35736db2d62b07de6f050a4db53492ad8 upstream.
The current open/lock state recovery unfortunately does not handle errors
such as NFS4ERR_CONN_NOT_BOUND_TO_SESSION correctly. Instead of looping,
just proceeds as if the state manager is finished recovering.
This patch ensures that we loop back, handle higher priority errors
and complete the open/lock state recovery.
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/nfs/nfs4state.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1732,7 +1732,8 @@ restart:
if (status < 0) {
set_bit(ops->owner_flag_bit, &sp->so_flags);
nfs4_put_state_owner(sp);
- return nfs4_recovery_handle_error(clp, status);
+ status = nfs4_recovery_handle_error(clp, status);
+ return (status != 0) ? status : -EAGAIN;
}
nfs4_put_state_owner(sp);
@@ -1741,7 +1742,7 @@ restart:
spin_unlock(&clp->cl_lock);
}
rcu_read_unlock();
- return status;
+ return 0;
}
static int nfs4_check_lease(struct nfs_client *clp)
@@ -2393,14 +2394,11 @@ static void nfs4_state_manager(struct nf
section = "reclaim reboot";
status = nfs4_do_reclaim(clp,
clp->cl_mvops->reboot_recovery_ops);
- if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) ||
- test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state))
- continue;
- nfs4_state_end_reclaim_reboot(clp);
- if (test_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state))
+ if (status == -EAGAIN)
continue;
if (status < 0)
goto out_error;
+ nfs4_state_end_reclaim_reboot(clp);
}
/* Now recover expired state... */
@@ -2408,9 +2406,7 @@ static void nfs4_state_manager(struct nf
section = "reclaim nograce";
status = nfs4_do_reclaim(clp,
clp->cl_mvops->nograce_recovery_ops);
- if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) ||
- test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state) ||
- test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))
+ if (status == -EAGAIN)
continue;
if (status < 0)
goto out_error;
--
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