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NFSv4.1: Clean up nfs4_reclaim_lease

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2012-06-05 11:19:47 -04:00
parent 1a47e7a666
commit b42353ff8d
1 changed files with 35 additions and 17 deletions
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52
fs/nfs/nfs4state.c
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@ -1642,7 +1642,7 @@ static int nfs4_handle_reclaim_lease_error(struct nfs_client *clp, int status)
return 0;
}
static int nfs4_reclaim_lease(struct nfs_client *clp)
static int nfs4_establish_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
const struct nfs4_state_recovery_ops *ops =
@ -1655,7 +1655,37 @@ static int nfs4_reclaim_lease(struct nfs_client *clp)
status = ops->establish_clid(clp, cred);
put_rpccred(cred);
if (status != 0)
return status;
pnfs_destroy_all_layouts(clp);
return 0;
}
static int nfs4_reclaim_lease(struct nfs_client *clp)
{
int status;
status = nfs4_establish_lease(clp);
if (status < 0)
return nfs4_handle_reclaim_lease_error(clp, status);
if (test_and_clear_bit(NFS4CLNT_SERVER_SCOPE_MISMATCH, &clp->cl_state))
nfs4_state_start_reclaim_nograce(clp);
if (!test_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state))
set_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state);
clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state);
clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
return 0;
}
static int nfs4_purge_lease(struct nfs_client *clp)
{
int status;
status = nfs4_establish_lease(clp);
if (status < 0)
return nfs4_handle_reclaim_lease_error(clp, status);
clear_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state);
set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
nfs4_state_start_reclaim_nograce(clp);
return 0;
}
@ -1868,31 +1898,19 @@ static void nfs4_state_manager(struct nfs_client *clp)
do {
if (test_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state)) {
section = "purge state";
status = nfs4_reclaim_lease(clp);
status = nfs4_purge_lease(clp);
if (status < 0)
goto out_error;
clear_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state);
set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
continue;
}
if (test_and_clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) {
if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) {
section = "lease expired";
/* We're going to have to re-establish a clientid */
status = nfs4_reclaim_lease(clp);
if (status < 0)
goto out_error;
if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
continue;
clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state);
if (test_and_clear_bit(NFS4CLNT_SERVER_SCOPE_MISMATCH,
&clp->cl_state))
nfs4_state_start_reclaim_nograce(clp);
else
set_bit(NFS4CLNT_RECLAIM_REBOOT,
&clp->cl_state);
pnfs_destroy_all_layouts(clp);
continue;
}
if (test_and_clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state)) {