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nfsd: Cleanup nfs4svc_encode_compoundres

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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>
This commit is contained in:
Trond Myklebust 2014-06-30 11:48:35 -04:00 committed by J. Bruce Fields
parent e17f99b728
commit b607664ee7
4 changed files with 24 additions and 29 deletions
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35
fs/nfsd/nfs4state.c
View File

@ -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)
{

15
fs/nfsd/nfs4xdr.c
View File

@ -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;
}

1
fs/nfsd/state.h
View File

@ -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);

2
fs/nfsd/xdr4.h
View File

@ -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 *);