diff options
| author |   Roland McGrath <roland@redhat.com> | 2008-03-24 18:36:23 -0700 |
|---|---|---|
| committer | Roland McGrath <roland@redhat.com> | 2008-07-16 18:02:33 -0700 |
| commit | f470021adb9190819c03d6d8c5c860a17480aa6d (patch) | |
| tree | 9e5c2808138624e272b562a502cfd035ae59c268 /kernel/fork.c | |
| parent | do_wait reorganization (diff) | |
| download | linux-dev-f470021adb9190819c03d6d8c5c860a17480aa6d.tar.xz linux-dev-f470021adb9190819c03d6d8c5c860a17480aa6d.zip | |
ptrace children revamp
ptrace no longer fiddles with the children/sibling links, and the
old ptrace_children list is gone. Now ptrace, whether of one's own
children or another's via PTRACE_ATTACH, just uses the new ptraced
list instead.
There should be no user-visible difference that matters. The only
change is the order in which do_wait() sees multiple stopped
children and stopped ptrace attachees. Since wait_task_stopped()
was changed earlier so it no longer reorders the children list, we
already know this won't cause any new problems.
Signed-off-by: Roland McGrath <roland@redhat.com>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 4bd2f516401f..adefc1131f27 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1125,8 +1125,8 @@ static struct task_struct *copy_process(unsigned long clone_flags, */ p->group_leader = p; INIT_LIST_HEAD(&p->thread_group); - INIT_LIST_HEAD(&p->ptrace_children); - INIT_LIST_HEAD(&p->ptrace_list); + INIT_LIST_HEAD(&p->ptrace_entry); + INIT_LIST_HEAD(&p->ptraced); /* Now that the task is set up, run cgroup callbacks if * necessary. We need to run them before the task is visible @@ -1198,7 +1198,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, } if (likely(p->pid)) { - add_parent(p); + list_add_tail(&p->sibling, &p->real_parent->children); if (unlikely(p->ptrace & PT_PTRACED)) __ptrace_link(p, current->parent); |