Usually inline function is better than function-like macro.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
---
 kernel/fork.c |   14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

Index: 2.6/kernel/fork.c
===================================================================
--- 2.6.orig/kernel/fork.c
+++ 2.6/kernel/fork.c
@@ -92,9 +92,19 @@ int nr_processes(void)
 }
 
 #ifndef __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
-# define alloc_task_struct()	kmem_cache_alloc(task_struct_cachep, GFP_KERNEL)
-# define free_task_struct(tsk)	kmem_cache_free(task_struct_cachep, (tsk))
+
 static struct kmem_cache *task_struct_cachep;
+
+static inline struct task_struct *alloc_task_struct(void)
+{
+	return kmem_cache_alloc(task_struct_cachep, GFP_KERNEL);
+}
+
+static inline void free_task_struct(struct task_struct *tsk)
+{
+	kmem_cache_free(task_struct_cachep, tsk);
+}
+
 #endif
 
 #ifndef __HAVE_ARCH_THREAD_INFO_ALLOCATOR