diff options
-rw-r--r-- | fs/exec.c | 46 |
1 files changed, 23 insertions, 23 deletions
@@ -595,7 +595,7 @@ static int de_thread(struct task_struct *tsk) | |||
595 | if (!newsighand) | 595 | if (!newsighand) |
596 | return -ENOMEM; | 596 | return -ENOMEM; |
597 | 597 | ||
598 | if (thread_group_empty(current)) | 598 | if (thread_group_empty(tsk)) |
599 | goto no_thread_group; | 599 | goto no_thread_group; |
600 | 600 | ||
601 | /* | 601 | /* |
@@ -620,17 +620,17 @@ static int de_thread(struct task_struct *tsk) | |||
620 | * Reparenting needs write_lock on tasklist_lock, | 620 | * Reparenting needs write_lock on tasklist_lock, |
621 | * so it is safe to do it under read_lock. | 621 | * so it is safe to do it under read_lock. |
622 | */ | 622 | */ |
623 | if (unlikely(current->group_leader == child_reaper)) | 623 | if (unlikely(tsk->group_leader == child_reaper)) |
624 | child_reaper = current; | 624 | child_reaper = tsk; |
625 | 625 | ||
626 | zap_other_threads(current); | 626 | zap_other_threads(tsk); |
627 | read_unlock(&tasklist_lock); | 627 | read_unlock(&tasklist_lock); |
628 | 628 | ||
629 | /* | 629 | /* |
630 | * Account for the thread group leader hanging around: | 630 | * Account for the thread group leader hanging around: |
631 | */ | 631 | */ |
632 | count = 1; | 632 | count = 1; |
633 | if (!thread_group_leader(current)) { | 633 | if (!thread_group_leader(tsk)) { |
634 | count = 2; | 634 | count = 2; |
635 | /* | 635 | /* |
636 | * The SIGALRM timer survives the exec, but needs to point | 636 | * The SIGALRM timer survives the exec, but needs to point |
@@ -639,14 +639,14 @@ static int de_thread(struct task_struct *tsk) | |||
639 | * synchronize with any firing (by calling del_timer_sync) | 639 | * synchronize with any firing (by calling del_timer_sync) |
640 | * before we can safely let the old group leader die. | 640 | * before we can safely let the old group leader die. |
641 | */ | 641 | */ |
642 | sig->tsk = current; | 642 | sig->tsk = tsk; |
643 | spin_unlock_irq(lock); | 643 | spin_unlock_irq(lock); |
644 | if (hrtimer_cancel(&sig->real_timer)) | 644 | if (hrtimer_cancel(&sig->real_timer)) |
645 | hrtimer_restart(&sig->real_timer); | 645 | hrtimer_restart(&sig->real_timer); |
646 | spin_lock_irq(lock); | 646 | spin_lock_irq(lock); |
647 | } | 647 | } |
648 | while (atomic_read(&sig->count) > count) { | 648 | while (atomic_read(&sig->count) > count) { |
649 | sig->group_exit_task = current; | 649 | sig->group_exit_task = tsk; |
650 | sig->notify_count = count; | 650 | sig->notify_count = count; |
651 | __set_current_state(TASK_UNINTERRUPTIBLE); | 651 | __set_current_state(TASK_UNINTERRUPTIBLE); |
652 | spin_unlock_irq(lock); | 652 | spin_unlock_irq(lock); |
@@ -662,13 +662,13 @@ static int de_thread(struct task_struct *tsk) | |||
662 | * do is to wait for the thread group leader to become inactive, | 662 | * do is to wait for the thread group leader to become inactive, |
663 | * and to assume its PID: | 663 | * and to assume its PID: |
664 | */ | 664 | */ |
665 | if (!thread_group_leader(current)) { | 665 | if (!thread_group_leader(tsk)) { |
666 | /* | 666 | /* |
667 | * Wait for the thread group leader to be a zombie. | 667 | * Wait for the thread group leader to be a zombie. |
668 | * It should already be zombie at this point, most | 668 | * It should already be zombie at this point, most |
669 | * of the time. | 669 | * of the time. |
670 | */ | 670 | */ |
671 | leader = current->group_leader; | 671 | leader = tsk->group_leader; |
672 | while (leader->exit_state != EXIT_ZOMBIE) | 672 | while (leader->exit_state != EXIT_ZOMBIE) |
673 | yield(); | 673 | yield(); |
674 | 674 | ||
@@ -682,12 +682,12 @@ static int de_thread(struct task_struct *tsk) | |||
682 | * When we take on its identity by switching to its PID, we | 682 | * When we take on its identity by switching to its PID, we |
683 | * also take its birthdate (always earlier than our own). | 683 | * also take its birthdate (always earlier than our own). |
684 | */ | 684 | */ |
685 | current->start_time = leader->start_time; | 685 | tsk->start_time = leader->start_time; |
686 | 686 | ||
687 | write_lock_irq(&tasklist_lock); | 687 | write_lock_irq(&tasklist_lock); |
688 | 688 | ||
689 | BUG_ON(leader->tgid != current->tgid); | 689 | BUG_ON(leader->tgid != tsk->tgid); |
690 | BUG_ON(current->pid == current->tgid); | 690 | BUG_ON(tsk->pid == tsk->tgid); |
691 | /* | 691 | /* |
692 | * An exec() starts a new thread group with the | 692 | * An exec() starts a new thread group with the |
693 | * TGID of the previous thread group. Rehash the | 693 | * TGID of the previous thread group. Rehash the |
@@ -700,17 +700,17 @@ static int de_thread(struct task_struct *tsk) | |||
700 | * Note: The old leader also uses this pid until release_task | 700 | * Note: The old leader also uses this pid until release_task |
701 | * is called. Odd but simple and correct. | 701 | * is called. Odd but simple and correct. |
702 | */ | 702 | */ |
703 | detach_pid(current, PIDTYPE_PID); | 703 | detach_pid(tsk, PIDTYPE_PID); |
704 | current->pid = leader->pid; | 704 | tsk->pid = leader->pid; |
705 | attach_pid(current, PIDTYPE_PID, current->pid); | 705 | attach_pid(tsk, PIDTYPE_PID, tsk->pid); |
706 | transfer_pid(leader, current, PIDTYPE_PGID); | 706 | transfer_pid(leader, tsk, PIDTYPE_PGID); |
707 | transfer_pid(leader, current, PIDTYPE_SID); | 707 | transfer_pid(leader, tsk, PIDTYPE_SID); |
708 | list_replace_rcu(&leader->tasks, ¤t->tasks); | 708 | list_replace_rcu(&leader->tasks, &tsk->tasks); |
709 | 709 | ||
710 | current->group_leader = current; | 710 | tsk->group_leader = tsk; |
711 | leader->group_leader = current; | 711 | leader->group_leader = tsk; |
712 | 712 | ||
713 | current->exit_signal = SIGCHLD; | 713 | tsk->exit_signal = SIGCHLD; |
714 | 714 | ||
715 | BUG_ON(leader->exit_state != EXIT_ZOMBIE); | 715 | BUG_ON(leader->exit_state != EXIT_ZOMBIE); |
716 | leader->exit_state = EXIT_DEAD; | 716 | leader->exit_state = EXIT_DEAD; |
@@ -750,7 +750,7 @@ no_thread_group: | |||
750 | spin_lock(&oldsighand->siglock); | 750 | spin_lock(&oldsighand->siglock); |
751 | spin_lock_nested(&newsighand->siglock, SINGLE_DEPTH_NESTING); | 751 | spin_lock_nested(&newsighand->siglock, SINGLE_DEPTH_NESTING); |
752 | 752 | ||
753 | rcu_assign_pointer(current->sighand, newsighand); | 753 | rcu_assign_pointer(tsk->sighand, newsighand); |
754 | recalc_sigpending(); | 754 | recalc_sigpending(); |
755 | 755 | ||
756 | spin_unlock(&newsighand->siglock); | 756 | spin_unlock(&newsighand->siglock); |
@@ -761,7 +761,7 @@ no_thread_group: | |||
761 | kmem_cache_free(sighand_cachep, oldsighand); | 761 | kmem_cache_free(sighand_cachep, oldsighand); |
762 | } | 762 | } |
763 | 763 | ||
764 | BUG_ON(!thread_group_leader(current)); | 764 | BUG_ON(!thread_group_leader(tsk)); |
765 | return 0; | 765 | return 0; |
766 | } | 766 | } |
767 | 767 | ||