Merge branch 'origin'

[pandora-kernel.git] / arch / powerpc / kernel / ptrace.c

diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 943425a..bcb8357 100644 (file)
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -36,8 +36,9 @@
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
+
 #ifdef CONFIG_PPC64
-#include <asm/ptrace-common.h>
+#include "ptrace-common.h"
 #endif
 
 #ifdef CONFIG_PPC32
@@ -248,46 +249,10 @@ void ptrace_disable(struct task_struct *child)
        clear_single_step(child);
 }
 
-int 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;
        int ret = -EPERM;
 
-       lock_kernel();
-       if (request == PTRACE_TRACEME) {
-               /* are we already being traced? */
-               if (current->ptrace & PT_PTRACED)
-                       goto out;
-               ret = security_ptrace(current->parent, current);
-               if (ret)
-                       goto out;
-               /* set the ptrace bit in the process flags. */
-               current->ptrace |= PT_PTRACED;
-               ret = 0;
-               goto out;
-       }
-       ret = -ESRCH;
-       read_lock(&tasklist_lock);
-       child = find_task_by_pid(pid);
-       if (child)
-               get_task_struct(child);
-       read_unlock(&tasklist_lock);
-       if (!child)
-               goto out;
-
-       ret = -EPERM;
-       if (pid == 1)           /* you may not mess with init */
-               goto out_tsk;
-
-       if (request == PTRACE_ATTACH) {
-               ret = ptrace_attach(child);
-               goto out_tsk;
-       }
-
-       ret = ptrace_check_attach(child, request == PTRACE_KILL);
-       if (ret < 0)
-               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. */
@@ -540,10 +505,7 @@ int 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;
 }
 
@@ -599,10 +561,7 @@ void do_syscall_trace_leave(struct pt_regs *regs)
                                   regs->result);
 
        if ((test_thread_flag(TIF_SYSCALL_TRACE)
-#ifdef CONFIG_PPC64
-            || test_thread_flag(TIF_SINGLESTEP)
-#endif
-            )
+            || test_thread_flag(TIF_SINGLESTEP))
            && (current->ptrace & PT_PTRACED))
                do_syscall_trace();
 }