NFSD: Call nfsd4_init_slabs() from init_nfsd()

init_nfsd() was calling free_slabs() during cleanup code, but the call
to init_slabs() was hidden in nfsd4_state_init().  This could be
confusing to people unfamiliar with the code.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs4state.c

@@ -2301,7 +2301,7 @@ nfsd4_free_slabs(void)
 	nfsd4_free_slab(&deleg_slab);
 }
 
-static int
+int
 nfsd4_init_slabs(void)
 {
 	openowner_slab = kmem_cache_create("nfsd4_openowners",
@@ -4546,14 +4546,11 @@ void nfsd_recall_delegations(u64 num)
 
 /* initialization to perform at module load time: */
 
-int
+void
 nfs4_state_init(void)
 {
-	int i, status;
+	int i;
 
-	status = nfsd4_init_slabs();
-	if (status)
-		return status;
 	for (i = 0; i < CLIENT_HASH_SIZE; i++) {
 		INIT_LIST_HEAD(&conf_id_hashtbl[i]);
 		INIT_LIST_HEAD(&conf_str_hashtbl[i]);
@@ -4577,7 +4574,6 @@ nfs4_state_init(void)
 	INIT_LIST_HEAD(&client_lru);
 	INIT_LIST_HEAD(&del_recall_lru);
 	reclaim_str_hashtbl_size = 0;
-	return 0;
 }
 
 static void

fs/nfsd/nfsctl.c

@@ -1129,9 +1129,10 @@ static int __init init_nfsd(void)
 	int retval;
 	printk(KERN_INFO "Installing knfsd (copyright (C) 1996 okir@monad.swb.de).\n");
 
-	retval = nfs4_state_init(); /* nfs4 locking state */
+	retval = nfsd4_init_slabs();
 	if (retval)
 		return retval;
+	nfs4_state_init();
 	retval = nfsd_fault_inject_init(); /* nfsd fault injection controls */
 	if (retval)
 		goto out_free_slabs;

fs/nfsd/nfsd.h

@@ -104,14 +104,16 @@ static inline int nfsd_v4client(struct svc_rqst *rq)
  */
 #ifdef CONFIG_NFSD_V4
 extern unsigned int max_delegations;
-int nfs4_state_init(void);
+void nfs4_state_init(void);
+int nfsd4_init_slabs(void);
 void nfsd4_free_slabs(void);
 int nfs4_state_start(void);
 void nfs4_state_shutdown(void);
 void nfs4_reset_lease(time_t leasetime);
 int nfs4_reset_recoverydir(char *recdir);
 #else
-static inline int nfs4_state_init(void) { return 0; }
+static inline void nfs4_state_init(void) { }
+static inline int nfsd4_init_slabs(void) { return 0; }
 static inline void nfsd4_free_slabs(void) { }
 static inline int nfs4_state_start(void) { return 0; }
 static inline void nfs4_state_shutdown(void) { }