Update the thread shim to use the current kernel threading API.

We need to use kthread_create() here for a few reasons.  First
off to old kernel_thread() API functioin will be going away.
Secondly, and more importantly if I use kthread_create() we can
then properly implement a thread_exit() function which terminates
the kernel thread at any point with do_exit().  This fixes our
cleanup bug which was caused by dropping a mutex twice after
thread_exit() didn't really exit.



git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@66 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c

include/sys/thread.h

@@ -8,6 +8,7 @@ extern "C" {
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/spinlock.h>
+#include <linux/kthread.h>
 #include <sys/types.h>
 #include <sys/sysmacros.h>
 
@@ -30,14 +31,14 @@ typedef void (*thread_func_t)(void *);
 
 #define thread_create(stk, stksize, func, arg, len, pp, state, pri)      \
 	__thread_create(stk, stksize, (thread_func_t)func,               \
-		        arg, len, pp, state, pri)
+	                #func, arg, len, pp, state, pri)
 #define thread_exit()			__thread_exit()
 #define curthread			get_current()
 
 extern kthread_t *__thread_create(caddr_t stk, size_t  stksize,
-                            thread_func_t func, void *args,
-                            size_t len, int *pp, int state,
-                            pri_t pri);
+                                  thread_func_t func, const char *name,
+                                  void *args, size_t len, int *pp,
+                                  int state, pri_t pri);
 extern void __thread_exit(void);
 
 #ifdef  __cplusplus