On 11/20, Andrew Morton wrote:
>
> On Tue, 20 Nov 2007 13:28:51 -0800 (PST)
> Roland McGrath <[email protected]> wrote:
>
> > > Andrew, it is very easy to send the new patch to fix the code, but is it
> > > possible to fix the changelog somehow for the patch in -mm tree?
>
> Sure, just send me the new text.
>
> > I'd prefer a comment in the code there making it explicit that ->sighand is
> > a "reaped yet" synchronization check (under tasklist_lock).
>
> that works too.
Will do tomorrow. Actually, I just realized we don't need need either check.
release_task() first does ptrace_unlink(), then __exit_signal(). This means
that (child->ptrace & PT_PTRACED) under tasklist_lock implies we have the valid
->sighand/signal.
Will send the patch with the comment.
Oleg.
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