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Commit d29c374c authored by J. Bruce Fields's avatar J. Bruce Fields Committed by J. Bruce Fields
Browse files

nfsd4: track backchannel connections 



We need to keep track of which connections are available for use with
the backchannel, which for the forechannel, and which for both.

Signed-off-by: default avatarJ. Bruce Fields <bfields@citi.umich.edu>
parent 86c3e16c

fs/nfsd/nfs4state.c

+7 −4
Original line number Diff line number Diff line
@@ -644,7 +644,7 @@ static void nfsd4_conn_lost(struct svc_xpt_user *u) 
	spin_unlock(&clp->cl_lock);

}



static struct nfsd4_conn *alloc_conn(struct svc_rqst *rqstp)

static struct nfsd4_conn *alloc_conn(struct svc_rqst *rqstp, u32 flags)

{

	struct nfsd4_conn *conn;
@@ -653,7 +653,7 @@ static struct nfsd4_conn *alloc_conn(struct svc_rqst *rqstp) 
		return NULL;

	svc_xprt_get(rqstp->rq_xprt);

	conn->cn_xprt = rqstp->rq_xprt;

	conn->cn_flags = NFS4_CDFC4_FORE;

	conn->cn_flags = flags;

	INIT_LIST_HEAD(&conn->cn_xpt_user.list);

	return conn;

}
@@ -682,8 +682,11 @@ static void nfsd4_register_conn(struct nfsd4_conn *conn) 
static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses)

{

	struct nfsd4_conn *conn;

	u32 flags = NFS4_CDFC4_FORE;



	conn = alloc_conn(rqstp);

	if (ses->se_flags & SESSION4_BACK_CHAN)

		flags |= NFS4_CDFC4_BACK;

	conn = alloc_conn(rqstp, flags);

	if (!conn)

		return nfserr_jukebox;

	nfsd4_hash_conn(conn, ses);
@@ -1640,7 +1643,7 @@ static void nfsd4_sequence_check_conn(struct svc_rqst *rqstp, struct nfsd4_sessi 
	if (c)

		return;



	new = alloc_conn(rqstp);

	new = alloc_conn(rqstp, NFS4_CDFC4_FORE);



	spin_lock(&clp->cl_lock);

	c = __nfsd4_find_conn(rqstp, ses);