NFSv4: The state manager shouldn't exit on errors that were handled
nfs4_recovery_handle_error() will correctly handle errors such as
NFS4ERR_CB_PATH_DOWN, however because they are still passed back to the
main loop in nfs4_state_manager(), they can cause the latter to exit
prematurely.
Fix this by letting nfs4_recovery_handle_error() change the error value in
cases where there is no action required by the caller.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 4566319..8f27b4f 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1051,12 +1051,12 @@
clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state);
}
-static void nfs4_recovery_handle_error(struct nfs_client *clp, int error)
+static int nfs4_recovery_handle_error(struct nfs_client *clp, int error)
{
switch (error) {
case -NFS4ERR_CB_PATH_DOWN:
nfs_handle_cb_pathdown(clp);
- break;
+ return 0;
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_LEASE_MOVED:
set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
@@ -1075,6 +1075,7 @@
case -NFS4ERR_SEQ_MISORDERED:
set_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state);
}
+ return error;
}
static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recovery_ops *ops)
@@ -1094,8 +1095,7 @@
if (status < 0) {
set_bit(ops->owner_flag_bit, &sp->so_flags);
nfs4_put_state_owner(sp);
- nfs4_recovery_handle_error(clp, status);
- return status;
+ return nfs4_recovery_handle_error(clp, status);
}
nfs4_put_state_owner(sp);
goto restart;
@@ -1125,8 +1125,7 @@
status = ops->renew_lease(clp, cred);
put_rpccred(cred);
out:
- nfs4_recovery_handle_error(clp, status);
- return status;
+ return nfs4_recovery_handle_error(clp, status);
}
static int nfs4_reclaim_lease(struct nfs_client *clp)