uml: get rid of syscall counters

Get rid of some syscall counters which haven't been useful in ages.
Signed-off-by: NJeff Dike <jdike@linux.intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/um/include/kern_util.h

@@ -13,7 +13,6 @@ extern int uml_exitcode;
 
 extern int ncpus;
 extern int kmalloc_ok;
-extern int nsyscalls;
 
 #define UML_ROUND_UP(addr) \
 	((((unsigned long) addr) + PAGE_SIZE - 1) & PAGE_MASK)

arch/um/kernel/skas/syscall.c

@@ -17,9 +17,6 @@ void handle_syscall(struct uml_pt_regs *r)
 
 	syscall_trace(r, 0);
 
-	current->thread.nsyscalls++;
-	nsyscalls++;
-
 	/*
 	 * This should go in the declaration of syscall, but when I do that,
 	 * strace -f -c bash -c 'ls ; ls' breaks, sometimes not tracing

arch/um/kernel/syscall.c

@@ -13,9 +13,6 @@
 #include "asm/uaccess.h"
 #include "asm/unistd.h"
 
-/*  Unlocked, I don't care if this is a bit off */
-int nsyscalls = 0;
-
 long sys_fork(void)
 {
 	long ret;

include/asm-um/processor-generic.h

@@ -27,7 +27,6 @@ struct thread_struct {
 	 * as of 2.6.11).
 	 */
 	int forking;
-	int nsyscalls;
 	struct pt_regs regs;
 	int singlestep_syscall;
 	void *fault_addr;
@@ -59,7 +58,6 @@ struct thread_struct {
 #define INIT_THREAD \
 { \
 	.forking		= 0, \
-	.nsyscalls		= 0, \
 	.regs		   	= EMPTY_REGS,	\
 	.fault_addr		= NULL, \
 	.prev_sched		= NULL, \