#include <linux/signal.h>
#include <linux/audit.h>
#include <linux/pid_namespace.h>
+#include <linux/syscalls.h>
#include <asm/pgtable.h>
#include <asm/uaccess.h>
spin_lock(&child->sighand->siglock);
if (task_is_traced(child)) {
if (child->signal->flags & SIGNAL_STOP_STOPPED) {
- child->state = TASK_STOPPED;
+ __set_task_state(child, TASK_STOPPED);
} else {
signal_wake_up(child, 1);
}
* be changed by us so it's not changing right after this.
*/
read_lock(&tasklist_lock);
- if ((child->ptrace & PT_PTRACED) && child->parent == current &&
- (!(child->ptrace & PT_ATTACHED) || child->real_parent != current)
- && child->signal != NULL) {
+ if ((child->ptrace & PT_PTRACED) && child->parent == current) {
ret = 0;
+ /*
+ * child->sighand can't be NULL, release_task()
+ * does ptrace_unlink() before __exit_signal().
+ */
spin_lock_irq(&child->sighand->siglock);
- if (task_is_stopped(child)) {
+ if (task_is_stopped(child))
child->state = TASK_TRACED;
- } else if (!task_is_traced(child) && !kill) {
+ else if (!task_is_traced(child) && !kill)
ret = -ESRCH;
- }
spin_unlock_irq(&child->sighand->siglock);
}
read_unlock(&tasklist_lock);
- if (!ret && !kill) {
+ if (!ret && !kill)
wait_task_inactive(child);
- }
/* All systems go.. */
return ret;
goto bad;
/* Go */
- task->ptrace |= PT_PTRACED | ((task->real_parent != current)
- ? PT_ATTACHED : 0);
+ task->ptrace |= PT_PTRACED;
if (capable(CAP_SYS_PTRACE))
task->ptrace |= PT_PTRACE_CAP;