nfsd: Cleanup nfs4svc_encode_compoundres

Move the slot return, put session etc into a helper in fs/nfsd/nfs4state.c
instead of open coding in nfs4svc_encode_compoundres.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 71c442f..993da47 100644 (file)
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -203,18 +203,6 @@ static void put_client_renew_locked(struct nfs4_client *clp)
                renew_client_locked(clp);
 }
 
-void put_client_renew(struct nfs4_client *clp)
-{
-       struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
-
-       if (!atomic_dec_and_lock(&clp->cl_refcount, &nn->client_lock))
-               return;
-       if (!is_client_expired(clp))
-               renew_client_locked(clp);
-       spin_unlock(&nn->client_lock);
-}
-
-
 static inline u32
 opaque_hashval(const void *ptr, int nbytes)
 {
@@ -1646,7 +1634,7 @@ out_err:
 /*
  * Cache a reply. nfsd4_check_resp_size() has bounded the cache size.
  */
-void
+static void
 nfsd4_store_cache_entry(struct nfsd4_compoundres *resp)
 {
        struct xdr_buf *buf = resp->xdr.buf;
@@ -2418,6 +2406,27 @@ out_put_client:
        goto out_no_session;
 }
 
+void
+nfsd4_sequence_done(struct nfsd4_compoundres *resp)
+{
+       struct nfsd4_compound_state *cs = &resp->cstate;
+
+       if (nfsd4_has_session(cs)) {
+               struct nfs4_client *clp = cs->session->se_client;
+               struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
+
+               if (cs->status != nfserr_replay_cache) {
+                       nfsd4_store_cache_entry(resp);
+                       cs->slot->sl_flags &= ~NFSD4_SLOT_INUSE;
+               }
+               /* Renew the clientid on success and on replay */
+               spin_lock(&nn->client_lock);
+               nfsd4_put_session(cs->session);
+               put_client_renew_locked(clp);
+               spin_unlock(&nn->client_lock);
+       }
+}
+
 __be32
 nfsd4_destroy_clientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_destroy_clientid *dc)
 {

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 9388a43..21ffb9b 100644 (file)
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -4000,7 +4000,6 @@ nfs4svc_encode_compoundres(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compo
        /*
         * All that remains is to write the tag and operation count...
         */
-       struct nfsd4_compound_state *cs = &resp->cstate;
        struct xdr_buf *buf = resp->xdr.buf;
 
        WARN_ON_ONCE(buf->len != buf->head[0].iov_len + buf->page_len +
@@ -4014,19 +4013,7 @@ nfs4svc_encode_compoundres(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compo
        p += XDR_QUADLEN(resp->taglen);
        *p++ = htonl(resp->opcnt);
 
-       if (nfsd4_has_session(cs)) {
-               struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
-               struct nfs4_client *clp = cs->session->se_client;
-               if (cs->status != nfserr_replay_cache) {
-                       nfsd4_store_cache_entry(resp);
-                       cs->slot->sl_flags &= ~NFSD4_SLOT_INUSE;
-               }
-               /* Renew the clientid on success and on replay */
-               spin_lock(&nn->client_lock);
-               nfsd4_put_session(cs->session);
-               spin_unlock(&nn->client_lock);
-               put_client_renew(clp);
-       }
+       nfsd4_sequence_done(resp);
        return 1;
 }
 

diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 374c662..62f33b7 100644 (file)
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -476,7 +476,6 @@ extern void nfs4_put_delegation(struct nfs4_delegation *dp);
 extern struct nfs4_client_reclaim *nfs4_client_to_reclaim(const char *name,
                                                        struct nfsd_net *nn);
 extern bool nfs4_has_reclaimed_state(const char *name, struct nfsd_net *nn);
-extern void put_client_renew(struct nfs4_client *clp);
 
 /* nfs4recover operations */
 extern int nfsd4_client_tracking_init(struct net *net);

diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index efce901..a30a741 100644 (file)
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -578,7 +578,6 @@ extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
 extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
                struct nfsd4_compound_state *,
                struct nfsd4_setclientid_confirm *setclientid_confirm);
-extern void nfsd4_store_cache_entry(struct nfsd4_compoundres *resp);
 extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
                struct nfsd4_compound_state *, struct nfsd4_exchange_id *);
 extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_backchannel_ctl *);
@@ -589,6 +588,7 @@ extern __be32 nfsd4_create_session(struct svc_rqst *,
 extern __be32 nfsd4_sequence(struct svc_rqst *,
                struct nfsd4_compound_state *,
                struct nfsd4_sequence *);
+extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
 extern __be32 nfsd4_destroy_session(struct svc_rqst *,
                struct nfsd4_compound_state *,
                struct nfsd4_destroy_session *);