diff options
| -rw-r--r-- | arch/sh/kernel/ptrace_64.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c index b97817016b6..e0fb065914a 100644 --- a/arch/sh/kernel/ptrace_64.c +++ b/arch/sh/kernel/ptrace_64.c @@ -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> @@ -474,10 +474,9 @@ 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 @@ -487,9 +486,7 @@ 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); } |