[PATCH] remove add_parent()'s parent argument

[pandora-kernel.git] / kernel / exit.c

diff --git a/kernel/exit.c b/kernel/exit.c
index 93cee36..df26c33 100644 (file)
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -31,6 +31,8 @@
 #include <linux/signal.h>
 #include <linux/cn_proc.h>
 #include <linux/mutex.h>
+#include <linux/futex.h>
+#include <linux/compat.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -345,9 +347,9 @@ void daemonize(const char *name, ...)
        exit_mm(current);
 
        set_special_pids(1, 1);
-       down(&tty_sem);
+       mutex_lock(&tty_mutex);
        current->signal->tty = NULL;
-       up(&tty_sem);
+       mutex_unlock(&tty_mutex);
 
        /* Block and flush all signals */
        sigfillset(&blocked);
@@ -360,6 +362,9 @@ void daemonize(const char *name, ...)
        fs = init_task.fs;
        current->fs = fs;
        atomic_inc(&fs->count);
+       exit_namespace(current);
+       current->namespace = init_task.namespace;
+       get_namespace(current->namespace);
        exit_files(current);
        current->files = init_task.files;
        atomic_inc(&current->files->count);
@@ -533,13 +538,13 @@ static void exit_mm(struct task_struct * tsk)
        mmput(mm);
 }
 
-static inline void choose_new_parent(task_t *p, task_t *reaper, task_t *child_reaper)
+static inline void choose_new_parent(task_t *p, task_t *reaper)
 {
        /*
         * Make sure we're not reparenting to ourselves and that
         * the parent is not a zombie.
         */
-       BUG_ON(p == reaper || reaper->exit_state >= EXIT_ZOMBIE);
+       BUG_ON(p == reaper || reaper->exit_state);
        p->real_parent = reaper;
 }
 
@@ -640,7 +645,7 @@ static void forget_original_parent(struct task_struct * father,
 
                if (father == p->real_parent) {
                        /* reparent with a reaper, real father it's us */
-                       choose_new_parent(p, reaper, child_reaper);
+                       choose_new_parent(p, reaper);
                        reparent_thread(p, father, 0);
                } else {
                        /* reparent ptraced task to its real parent */
@@ -661,7 +666,7 @@ static void forget_original_parent(struct task_struct * father,
        }
        list_for_each_safe(_p, _n, &father->ptrace_children) {
                p = list_entry(_p,struct task_struct,ptrace_list);
-               choose_new_parent(p, reaper, child_reaper);
+               choose_new_parent(p, reaper);
                reparent_thread(p, father, 1);
        }
 }
@@ -802,10 +807,8 @@ fastcall NORET_TYPE void do_exit(long code)
                panic("Aiee, killing interrupt handler!");
        if (unlikely(!tsk->pid))
                panic("Attempted to kill the idle task!");
-       if (unlikely(tsk->pid == 1))
+       if (unlikely(tsk == child_reaper))
                panic("Attempted to kill init!");
-       if (tsk->io_context)
-               exit_io_context();
 
        if (unlikely(current->ptrace & PT_TRACE_EXIT)) {
                current->ptrace_message = code;
@@ -819,6 +822,8 @@ fastcall NORET_TYPE void do_exit(long code)
        if (unlikely(tsk->flags & PF_EXITING)) {
                printk(KERN_ALERT
                        "Fixing recursive fault but reboot is needed!\n");
+               if (tsk->io_context)
+                       exit_io_context();
                set_current_state(TASK_UNINTERRUPTIBLE);
                schedule();
        }
@@ -849,6 +854,12 @@ fastcall NORET_TYPE void do_exit(long code)
                exit_itimers(tsk->signal);
                acct_process(code);
        }
+       if (unlikely(tsk->robust_list))
+               exit_robust_list(tsk);
+#ifdef CONFIG_COMPAT
+       if (unlikely(tsk->compat_robust_list))
+               compat_exit_robust_list(tsk);
+#endif
        exit_mm(tsk);
 
        exit_sem(tsk);
@@ -878,6 +889,9 @@ fastcall NORET_TYPE void do_exit(long code)
         */
        mutex_debug_check_no_locks_held(tsk);
 
+       if (tsk->io_context)
+               exit_io_context();
+
        /* PF_DEAD causes final put_task_struct after we schedule. */
        preempt_disable();
        BUG_ON(tsk->flags & PF_DEAD);
@@ -1267,7 +1281,7 @@ bail_ref:
 
        /* move to end of parent's list to avoid starvation */
        remove_parent(p);
-       add_parent(p, p->parent);
+       add_parent(p);
 
        write_unlock_irq(&tasklist_lock);