NFSD: refactoring v4 specific code to a helper in nfs4state.c

This patch moves the v4 specific code from nfsd_init_net() to
nfsd4_init_leases_net() helper in nfs4state.c
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

fs/nfsd/nfs4state.c

@@ -4330,6 +4330,18 @@ nfsd4_init_slabs(void)
 	return -ENOMEM;
 }
 
+void nfsd4_init_leases_net(struct nfsd_net *nn)
+{
+	nn->nfsd4_lease = 90;	/* default lease time */
+	nn->nfsd4_grace = 90;
+	nn->somebody_reclaimed = false;
+	nn->track_reclaim_completes = false;
+	nn->clverifier_counter = prandom_u32();
+	nn->clientid_base = prandom_u32();
+	nn->clientid_counter = nn->clientid_base + 1;
+	nn->s2s_cp_cl_id = nn->clientid_counter++;
+}
+
 static void init_nfs4_replay(struct nfs4_replay *rp)
 {
 	rp->rp_status = nfserr_serverfault;

fs/nfsd/nfsctl.c

@@ -1484,14 +1484,7 @@ static __net_init int nfsd_init_net(struct net *net)
 	retval = nfsd_reply_cache_init(nn);
 	if (retval)
 		goto out_drc_error;
-	nn->nfsd4_lease = 90;	/* default lease time */
-	nn->nfsd4_grace = 90;
-	nn->somebody_reclaimed = false;
-	nn->track_reclaim_completes = false;
-	nn->clverifier_counter = prandom_u32();
-	nn->clientid_base = prandom_u32();
-	nn->clientid_counter = nn->clientid_base + 1;
-	nn->s2s_cp_cl_id = nn->clientid_counter++;
+	nfsd4_init_leases_net(nn);
 
 	get_random_bytes(&nn->siphash_key, sizeof(nn->siphash_key));
 	seqlock_init(&nn->writeverf_lock);

fs/nfsd/nfsd.h

@@ -496,12 +496,16 @@ extern void unregister_cld_notifier(void);
 extern void nfsd4_ssc_init_umount_work(struct nfsd_net *nn);
 #endif
 
+extern void nfsd4_init_leases_net(struct nfsd_net *nn);
+
 #else /* CONFIG_NFSD_V4 */
 static inline int nfsd4_is_junction(struct dentry *dentry)
 {
 	return 0;
 }
 
+static inline void nfsd4_init_leases_net(struct nfsd_net *nn) {};
+
 #define register_cld_notifier() 0
 #define unregister_cld_notifier() do { } while(0)