Merge branch 'master'

2 files changed, 5 insertions, 44 deletions

diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 11b1b90ba6ba..13d109328a42 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -102,7 +102,9 @@ void cpu_idle(void)
         while (1) {
                 while (!need_resched())
                         idle();
+                preempt_enable_no_resched();
                 schedule();
+                preempt_disable();
         }
 }
 
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index f7f1d2e5b90b..7e54422685cf 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -121,48 +121,11 @@ void ptrace_disable(struct task_struct *child)
         child->thread.work.syscall_trace = 0;
 }
 
-asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
-        struct task_struct *child;
         unsigned long tmp;
         int i, ret = 0;
 
-        lock_kernel();
-        if (request == PTRACE_TRACEME) {
-                /* are we already being traced? */
-                if (current->ptrace & PT_PTRACED) {
-                        ret = -EPERM;
-                        goto out;
-                }
-                /* set the ptrace bit in the process flags. */
-                current->ptrace |= PT_PTRACED;
-                goto out;
-        }
-        read_lock(&tasklist_lock);
-        child = find_task_by_pid(pid);
-        if (child)
-                get_task_struct(child);
-        read_unlock(&tasklist_lock);
-        if (unlikely(!child)) {
-                ret = -ESRCH;
-                goto out;
-        }
-
-        /* you may not mess with init */
-        if (unlikely(pid == 1)) {
-                ret = -EPERM;
-                goto out_tsk;
-        }
-
-        if (request == PTRACE_ATTACH) {
-                ret = ptrace_attach(child);
-                goto out_tsk;
-        }
-
-        ret = ptrace_check_attach(child, request == PTRACE_KILL);
-        if (ret)
-                goto out_tsk;
-
         switch (request) {
         /* when I and D space are separate, these will need to be fixed. */
         case PTRACE_PEEKTEXT:   /* read word at location addr. */
@@ -317,14 +280,10 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
                 ret = ptrace_request(child, request, addr, data);
                 break;
         }
-out_tsk:
-        put_task_struct(child);
-out:
-        unlock_kernel();
+
         return ret;
 out_eio:
-        ret = -EIO;
-        goto out_tsk;
+        return -EIO;
 }
 
 asmlinkage void syscall_trace(void)