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nfsd4: separate connection allocation and initialization

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It'll be useful to have connection allocation and initialization as
separate functions.

Also, note we'd been ignoring the alloc_conn error return in
bind_conn_to_session.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2012-09-11 15:37:40 -04:00
parent 4973050148
commit 3ba6367124
1 changed files with 15 additions and 10 deletions
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25
fs/nfsd/nfs4state.c
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@ -852,14 +852,10 @@ static int nfsd4_register_conn(struct nfsd4_conn *conn)
return register_xpt_user(conn->cn_xprt, &conn->cn_xpt_user);
}
static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses, u32 dir)
static void nfsd4_init_conn(struct svc_rqst *rqstp, struct nfsd4_conn *conn, struct nfsd4_session *ses, u32 dir)
{
struct nfsd4_conn *conn;
int ret;
conn = alloc_conn(rqstp, dir);
if (!conn)
return nfserr_jukebox;
nfsd4_hash_conn(conn, ses);
ret = nfsd4_register_conn(conn);
if (ret)
@ -870,17 +866,21 @@ static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses,
/* callback channel may be back up */
nfsd4_probe_callback(ses->se_client);
}
return nfs_ok;
}
static __be32 nfsd4_new_conn_from_crses(struct svc_rqst *rqstp, struct nfsd4_session *ses)
{
struct nfsd4_conn *conn;
u32 dir = NFS4_CDFC4_FORE;
if (ses->se_flags & SESSION4_BACK_CHAN)
dir |= NFS4_CDFC4_BACK;
return nfsd4_new_conn(rqstp, ses, dir);
conn = alloc_conn(rqstp, dir);
if (!conn)
return nfserr_jukebox;
nfsd4_init_conn(rqstp, conn, ses, dir);
return nfs_ok;
}
/* must be called under client_lock */
@ -1868,6 +1868,7 @@ __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
struct nfsd4_bind_conn_to_session *bcts)
{
__be32 status;
struct nfsd4_conn *conn;
if (!nfsd4_last_compound_op(rqstp))
return nfserr_not_only_op;
@ -1884,9 +1885,13 @@ __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
return nfserr_badsession;
status = nfsd4_map_bcts_dir(&bcts->dir);
if (!status)
nfsd4_new_conn(rqstp, cstate->session, bcts->dir);
return status;
if (status)
return status;
conn = alloc_conn(rqstp, bcts->dir);
if (!conn)
return nfserr_jukebox;
nfsd4_init_conn(rqstp, conn, cstate->session, bcts->dir);
return nfs_ok;
}
static bool nfsd4_compound_in_session(struct nfsd4_session *session, struct nfs4_sessionid *sid)