linux-kernel - Re: [PATCH 4/14] avr32: use generic ptrace

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Message-ID: <20100203192223.GA12039@redhat.com>
Date:	Wed, 3 Feb 2010 20:22:23 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Christoph Hellwig <hch@....de>
Cc:	Haavard Skinnemoen <haavard.skinnemoen@...el.com>,
	roland@...hat.com, akpm@...ux-foundation.org,
	hskinnemoen@...el.com, linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org
Subject: Re: [PATCH 4/14] avr32: use generic ptrace_resume code

On 02/03, Christoph Hellwig wrote:
>
> I don't think the flag clearing on PTRACE_KILL matters as the process
> is a zombie and almost gone anyway, it's more an artefact of the
> generic implementation that I wanted to mention.

Well, PTRACE_KILL doesn't necessarily kill the tracee. Only if the
tracee reported the signal or syscall, otherwise ->exit_code is
ignored.

OTOH I agree, probably the flag clearing on PTRACE_KILL doesn't
really matter beause PTRACE_KILL shouldn't be used at all.


The whole series looks "obviously good" to me, but of course
this is up to arch maintaners.

Oleg.

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