Re: [patch] exit_free(), 2.5.31-A0

From: Linus Torvalds (torvalds@transmeta.com)
Date: Tue Aug 13 2002 - 13:23:15 EST


On Tue, 13 Aug 2002, Ingo Molnar wrote:
>
> think about it - we have the *very same* problem in kernel-space, and we
> had it for years. People wanted to get rid of parent notification in
> helper processes for ages.

So add the capability to mark the child for proper exit semantics.

That's what I said: if you wan tto do this, you need to mark it at
_create_ time. Exactly so that the proper exit semantics can be done 100%
reliably, instead of just "sometimes". THAT is why _any_ interface that
depends on exit_xxxx() must die - because it is inherently broken for
accidental deaths, and does not leave the parent any way to recover
sanely.

                Linus

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