padata: Rename padata_alloc functions

We rename padata_alloc to padata_alloc_possible because this
function allocates a padata_instance and uses the cpu_possible
mask for parallel and serial workers. Also we rename __padata_alloc
to padata_alloc to avoid to export underlined functions. Underlined
functions are considered to be private to padata. Users are updated
accordingly.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/pcrypt.c

@@ -457,7 +457,7 @@ static int __pcrypt_init_instance(struct pcrypt_instance *pcrypt,
 	if (!pcrypt->wq)
 		goto err;
 
-	pcrypt->pinst = padata_alloc(pcrypt->wq);
+	pcrypt->pinst = padata_alloc_possible(pcrypt->wq);
 	if (!pcrypt->pinst)
 		goto err_destroy_workqueue;
 

include/linux/padata.h

@@ -165,10 +165,11 @@ struct padata_instance {
 #define	PADATA_INVALID	4
 };
 
-extern struct padata_instance *padata_alloc(struct workqueue_struct *wq);
-extern struct padata_instance *__padata_alloc(struct workqueue_struct *wq,
-					      const struct cpumask *pcpumask,
-					      const struct cpumask *cbcpumask);
+extern struct padata_instance *padata_alloc_possible(
+					struct workqueue_struct *wq);
+extern struct padata_instance *padata_alloc(struct workqueue_struct *wq,
+					    const struct cpumask *pcpumask,
+					    const struct cpumask *cbcpumask);
 extern void padata_free(struct padata_instance *pinst);
 extern int padata_do_parallel(struct padata_instance *pinst,
 			      struct padata_priv *padata, int cb_cpu);

kernel/padata.c

@@ -1060,29 +1060,29 @@ static struct kobj_type padata_attr_type = {
 };
 
 /**
- * padata_alloc - Allocate and initialize padata instance.
- *                Use default cpumask(cpu_possible_mask)
- *                for serial and parallel workes.
+ * padata_alloc_possible - Allocate and initialize padata instance.
+ *                         Use the cpu_possible_mask for serial and
+ *                         parallel workers.
  *
  * @wq: workqueue to use for the allocated padata instance
  */
-struct padata_instance *padata_alloc(struct workqueue_struct *wq)
+struct padata_instance *padata_alloc_possible(struct workqueue_struct *wq)
 {
-	return __padata_alloc(wq, cpu_possible_mask, cpu_possible_mask);
+	return padata_alloc(wq, cpu_possible_mask, cpu_possible_mask);
 }
-EXPORT_SYMBOL(padata_alloc);
+EXPORT_SYMBOL(padata_alloc_possible);
 
 /**
- * __padata_alloc - allocate and initialize a padata instance
- *                  and specify cpumasks for serial and parallel workers.
+ * padata_alloc - allocate and initialize a padata instance and specify
+ *                cpumasks for serial and parallel workers.
  *
  * @wq: workqueue to use for the allocated padata instance
  * @pcpumask: cpumask that will be used for padata parallelization
  * @cbcpumask: cpumask that will be used for padata serialization
  */
-struct padata_instance *__padata_alloc(struct workqueue_struct *wq,
-				       const struct cpumask *pcpumask,
-				       const struct cpumask *cbcpumask)
+struct padata_instance *padata_alloc(struct workqueue_struct *wq,
+				     const struct cpumask *pcpumask,
+				     const struct cpumask *cbcpumask)
 {
 	struct padata_instance *pinst;
 	struct parallel_data *pd = NULL;
@@ -1138,7 +1138,7 @@ struct padata_instance *__padata_alloc(struct workqueue_struct *wq,
 err:
 	return NULL;
 }
-EXPORT_SYMBOL(__padata_alloc);
+EXPORT_SYMBOL(padata_alloc);
 
 /**
  * padata_free - free a padata instance