diff options
| author | Mi Jinlong <mijinlong@cn.fujitsu.com> | 2011-10-20 17:51:39 +0800 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2011-10-24 04:24:30 -0400 |
| commit | 345c284290cabb5484df909303e73d6def8ec8ec (patch) | |
| tree | 1a853fe648230fefee758e36bd1ab141639c0b83 /fs/nfsd/nfs4state.c | |
| parent | 92bac8c5d60623167c6802b1f125e6d623708185 (diff) | |
nfs41: implement DESTROY_CLIENTID operation
According to rfc5661 18.50, implement DESTROY_CLIENTID operation.
Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 1527aaffb00..47e94e33a97 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1962,6 +1962,50 @@ out: return status; } +static inline bool has_resources(struct nfs4_client *clp) +{ + return !list_empty(&clp->cl_openowners) + || !list_empty(&clp->cl_delegations) + || !list_empty(&clp->cl_sessions); +} + +__be32 +nfsd4_destroy_clientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_destroy_clientid *dc) +{ + struct nfs4_client *conf, *unconf, *clp; + int status = 0; + + nfs4_lock_state(); + unconf = find_unconfirmed_client(&dc->clientid); + conf = find_confirmed_client(&dc->clientid); + + if (conf) { + clp = conf; + + if (!is_client_expired(conf) && has_resources(conf)) { + status = nfserr_clientid_busy; + goto out; + } + + /* rfc5661 18.50.3 */ + if (cstate->session && conf == cstate->session->se_client) { + status = nfserr_clientid_busy; + goto out; + } + } else if (unconf) + clp = unconf; + else { + status = nfserr_stale_clientid; + goto out; + } + + expire_client(clp); +out: + nfs4_unlock_state(); + dprintk("%s return %d\n", __func__, ntohl(status)); + return status; +} + __be32 nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_reclaim_complete *rc) { |