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authorTrond Myklebust <trond.myklebust@primarydata.com>2014-09-27 17:41:51 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-10-30 09:35:11 -0700
commitbb7105c3d5b128542239f2eff1e399e26959bcc7 (patch)
treee094a2703f447e49d7cb7489606ee67951c73a6b /fs
parent60eefed4786cbefa0f4d206dfcd7e3c87c992ded (diff)
downloadlinux-linaro-stable-bb7105c3d5b128542239f2eff1e399e26959bcc7.tar.gz
NFSv4: fix open/lock state recovery error handling
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@primarydata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/nfs4state.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 0e73bff6867f..d482b86d0e0b 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1699,7 +1699,8 @@ 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);
@@ -1708,7 +1709,7 @@ restart:
spin_unlock(&clp->cl_lock);
}
rcu_read_unlock();
- return status;
+ return 0;
}
static int nfs4_check_lease(struct nfs_client *clp)
@@ -2173,14 +2174,11 @@ static void nfs4_state_manager(struct nfs_client *clp)
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... */
@@ -2188,9 +2186,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
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;