dlm: cleanup memory allocation helpers

This patch removes a unnecessary parameter from DLM memory allocation
helpers and reduce some functions by just directly reply the pointer
address of the allocated memory.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

fs/dlm/lock.c

@@ -600,7 +600,7 @@ static int get_rsb_struct(struct dlm_ls *ls, const void *name, int len,
 {
 	struct dlm_rsb *r;
 
-	r = dlm_allocate_rsb(ls);
+	r = dlm_allocate_rsb();
 	if (!r)
 		return -ENOMEM;
 
@@ -1497,7 +1497,7 @@ static int _create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret,
 	limit.max = end;
 	limit.min = start;
 
-	lkb = dlm_allocate_lkb(ls);
+	lkb = dlm_allocate_lkb();
 	if (!lkb)
 		return -ENOMEM;
 

fs/dlm/memory.c

@@ -84,10 +84,7 @@ void dlm_memory_exit(void)
 
 char *dlm_allocate_lvb(struct dlm_ls *ls)
 {
-	char *p;
-
-	p = kzalloc(ls->ls_lvblen, GFP_ATOMIC);
-	return p;
+	return kzalloc(ls->ls_lvblen, GFP_ATOMIC);
 }
 
 void dlm_free_lvb(char *p)
@@ -95,12 +92,9 @@ void dlm_free_lvb(char *p)
 	kfree(p);
 }
 
-struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls)
+struct dlm_rsb *dlm_allocate_rsb(void)
 {
-	struct dlm_rsb *r;
-
-	r = kmem_cache_zalloc(rsb_cache, GFP_ATOMIC);
-	return r;
+	return kmem_cache_zalloc(rsb_cache, GFP_ATOMIC);
 }
 
 static void __free_rsb_rcu(struct rcu_head *rcu)
@@ -116,12 +110,9 @@ void dlm_free_rsb(struct dlm_rsb *r)
 	call_rcu(&r->rcu, __free_rsb_rcu);
 }
 
-struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls)
+struct dlm_lkb *dlm_allocate_lkb(void)
 {
-	struct dlm_lkb *lkb;
-
-	lkb = kmem_cache_zalloc(lkb_cache, GFP_ATOMIC);
-	return lkb;
+	return kmem_cache_zalloc(lkb_cache, GFP_ATOMIC);
 }
 
 void dlm_free_lkb(struct dlm_lkb *lkb)

fs/dlm/memory.h

@@ -14,9 +14,9 @@
 
 int dlm_memory_init(void);
 void dlm_memory_exit(void);
-struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls);
+struct dlm_rsb *dlm_allocate_rsb(void);
 void dlm_free_rsb(struct dlm_rsb *r);
-struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls);
+struct dlm_lkb *dlm_allocate_lkb(void);
 void dlm_free_lkb(struct dlm_lkb *l);
 char *dlm_allocate_lvb(struct dlm_ls *ls);
 void dlm_free_lvb(char *l);