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NFSv4: Fix state recovery when the client runs over the grace period

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If the client for some reason is not able to recover all its state within
the time allotted for the grace period, and the server reboots again, the
client is not allowed to recover the state that was 'lost' using reboot
recovery.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2008-12-23 15:21:41 -05:00
parent 6dc9d57af9
commit b79a4a1b45
3 changed files with 158 additions and 52 deletions
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7
fs/nfs/nfs4proc.c
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@@ -984,7 +984,7 @@ static int nfs4_recover_expired_lease(struct nfs_server *server)
ret = nfs4_wait_clnt_recover(server->client, clp);
if (ret != 0)
return ret;
if (!test_and_clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
break;
nfs4_schedule_state_recovery(clp);
}
@@ -2942,7 +2942,6 @@ static int _nfs4_proc_setclientid_confirm(struct nfs_client *clp, struct rpc_cre
spin_lock(&clp->cl_lock);
clp->cl_lease_time = fsinfo.lease_time * HZ;
clp->cl_last_renewal = now;
clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
spin_unlock(&clp->cl_lock);
}
return status;
@@ -3690,11 +3689,13 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
}
struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops = {
.state_flag_bit = NFS_STATE_RECLAIM_REBOOT,
.recover_open = nfs4_open_reclaim,
.recover_lock = nfs4_lock_reclaim,
};
struct nfs4_state_recovery_ops nfs4_network_partition_recovery_ops = {
struct nfs4_state_recovery_ops nfs4_nograce_recovery_ops = {
.state_flag_bit = NFS_STATE_RECLAIM_NOGRACE,
.recover_open = nfs4_open_expired,
.recover_lock = nfs4_lock_expired,
};