Merge branch 'linus' into timers/core

Conflicts:
	Documentation/feature-removal-schedule.txt

Merge reason: Resolve the conflict, update to upstream.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 29 insertions, 160 deletions

diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 98682bba0ed9..e555091eb97c 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -580,6 +580,35 @@ init_debug_traps(struct task_struct *child)
         }
 }
 
+void user_enable_single_step(struct task_struct *child)
+{
+        unsigned long next_pc;
+        unsigned long pc, insn;
+
+        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+
+        /* Compute next pc.  */
+        pc = get_stack_long(child, PT_BPC);
+
+        if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
+            != sizeof(insn))
+                break;
+
+        compute_next_pc(insn, pc, &next_pc, child);
+        if (next_pc & 0x80000000)
+                break;
+
+        if (embed_debug_trap(child, next_pc))
+                break;
+
+        invalidate_cache();
+}
+
+void user_disable_single_step(struct task_struct *child)
+{
+        unregister_all_debug_traps(child);
+        invalidate_cache();
+}
 
 /*
  * Called by kernel/ptrace.c when detaching..
@@ -630,74 +659,6 @@ arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 ret = ptrace_write_user(child, addr, data);
                 break;
 
-        /*
-         * continue/restart and stop at next (return from) syscall
-         */
-        case PTRACE_SYSCALL:
-        case PTRACE_CONT:
-                ret = -EIO;
-                if (!valid_signal(data))
-                        break;
-                if (request == PTRACE_SYSCALL)
-                        set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                else
-                        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                child->exit_code = data;
-                wake_up_process(child);
-                ret = 0;
-                break;
-
-        /*
-         * make the child exit.  Best I can do is send it a sigkill.
-         * perhaps it should be put in the status that it wants to
-         * exit.
-         */
-        case PTRACE_KILL: {
-                ret = 0;
-                unregister_all_debug_traps(child);
-                invalidate_cache();
-                if (child->exit_state == EXIT_ZOMBIE)   /* already dead */
-                        break;
-                child->exit_code = SIGKILL;
-                wake_up_process(child);
-                break;
-        }
-
-        /*
-         * execute single instruction.
-         */
-        case PTRACE_SINGLESTEP: {
-                unsigned long next_pc;
-                unsigned long pc, insn;
-
-                ret = -EIO;
-                if (!valid_signal(data))
-                        break;
-                clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-
-                /* Compute next pc.  */
-                pc = get_stack_long(child, PT_BPC);
-
-                if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
-                    != sizeof(insn))
-                        break;
-
-                compute_next_pc(insn, pc, &next_pc, child);
-                if (next_pc & 0x80000000)
-                        break;
-
-                if (embed_debug_trap(child, next_pc))
-                        break;
-
-                invalidate_cache();
-                child->exit_code = data;
-
-                /* give it a chance to run. */
-                wake_up_process(child);
-                ret = 0;
-                break;
-        }
-
         case PTRACE_GETREGS:
                 ret = ptrace_getregs(child, (void __user *)data);
                 break;
diff --git a/arch/m32r/kernel/sys_m32r.c b/arch/m32r/kernel/sys_m32r.c
index d3c865c5a6ba..0a00f467edfa 100644
--- a/arch/m32r/kernel/sys_m32r.c
+++ b/arch/m32r/kernel/sys_m32r.c
@@ -76,98 +76,6 @@ asmlinkage int sys_tas(int __user *addr)
         return oldval;
 }
 
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second,
-                       int third, void __user *ptr, long fifth)
-{
-        int version, ret;
-
-        version = call >> 16; /* hack for backward compatibility */
-        call &= 0xffff;
-
-        switch (call) {
-        case SEMOP:
-                return sys_semtimedop(first, (struct sembuf __user *)ptr,
-                                      second, NULL);
-        case SEMTIMEDOP:
-                return sys_semtimedop(first, (struct sembuf __user *)ptr,
-                                      second, (const struct timespec __user *)fifth);
-        case SEMGET:
-                return sys_semget (first, second, third);
-        case SEMCTL: {
-                union semun fourth;
-                if (!ptr)
-                        return -EINVAL;
-                if (get_user(fourth.__pad, (void __user * __user *) ptr))
-                        return -EFAULT;
-                return sys_semctl (first, second, third, fourth);
-                }
-
-        case MSGSND:
-                return sys_msgsnd (first, (struct msgbuf __user *) ptr,
-                                   second, third);
-        case MSGRCV:
-                switch (version) {
-                case 0: {
-                        struct ipc_kludge tmp;
-                        if (!ptr)
-                                return -EINVAL;
-
-                        if (copy_from_user(&tmp,
-                                           (struct ipc_kludge __user *) ptr,
-                                           sizeof (tmp)))
-                                return -EFAULT;
-                        return sys_msgrcv (first, tmp.msgp, second,
-                                           tmp.msgtyp, third);
-                        }
-                default:
-                        return sys_msgrcv (first,
-                                           (struct msgbuf __user *) ptr,
-                                           second, fifth, third);
-                }
-        case MSGGET:
-                return sys_msgget ((key_t) first, second);
-        case MSGCTL:
-                return sys_msgctl (first, second,
-                                   (struct msqid_ds __user *) ptr);
-        case SHMAT: {
-                ulong raddr;
-
-                if (!access_ok(VERIFY_WRITE, (ulong __user *) third,
-                                      sizeof(ulong)))
-                        return -EFAULT;
-                ret = do_shmat (first, (char __user *) ptr, second, &raddr);
-                if (ret)
-                        return ret;
-                return put_user (raddr, (ulong __user *) third);
-                }
-        case SHMDT:
-                return sys_shmdt ((char __user *)ptr);
-        case SHMGET:
-                return sys_shmget (first, second, third);
-        case SHMCTL:
-                return sys_shmctl (first, second,
-                                   (struct shmid_ds __user *) ptr);
-        default:
-                return -ENOSYS;
-        }
-}
-
-asmlinkage int sys_uname(struct old_utsname __user * name)
-{
-        int err;
-        if (!name)
-                return -EFAULT;
-        down_read(&uts_sem);
-        err = copy_to_user(name, utsname(), sizeof (*name));
-        up_read(&uts_sem);
-        return err?-EFAULT:0;
-}
-
 asmlinkage int sys_cacheflush(void *addr, int bytes, int cache)
 {
         /* This should flush more selectively ...  */