@@ -20,7 +20,7 @@
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/smp.h>
-#include <linux/smp_lock.h>
+#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/user.h>
@@ -395,10 +395,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
asmlinkage int sh64_ptrace(long request, long pid, long addr, long data)
{
#define WPC_DBRMODE 0x0d104008
- static int first_call = 1;
+ static unsigned long first_call;
- lock_kernel();
- if (first_call) {
+ if (!test_and_set_bit(0, &first_call)) {
/* Set WPC.DBRMODE to 0. This makes all debug events get
* delivered through RESVEC, i.e. into the handlers in entry.S.
* (If the kernel was downloaded using a remote gdb, WPC.DBRMODE
@@ -408,9 +407,7 @@ asmlinkage int sh64_ptrace(long request, long pid, long addr, long data)
* the remote gdb.) */
printk("DBRMODE set to 0 to permit native debugging\n");
poke_real_address_q(WPC_DBRMODE, 0);
- first_call = 0;
}
- unlock_kernel();
return sys_ptrace(request, pid, addr, data);
}