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From: Arnd Bergmann <arnd@arndb.de>
To: Namhyung Kim <namhyung@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>,
	Roland McGrath <roland@redhat.com>,
	Oleg Nesterov <oleg@redhat.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3 RESEND] ptrace: cleanup address space conversion on ptrace_request()
Date: Wed, 25 Aug 2010 13:42:46 +0200	[thread overview]
Message-ID: <201008251342.46107.arnd@arndb.de> (raw)
In-Reply-To: <87sk23w2sn.fsf@gmail.com>

On Wednesday 25 August 2010, Namhyung Kim wrote:
> Arnd Bergmann <arnd@arndb.de> writes:
> > I don't think we ever rely on 'data' being signed, and user space
> > sees it as 'void *' anyway, so it should be possible to just turn
> > it into 'unsigned long'.
> >
> 
> After I've checked all arch_ptrace() code, I can think there is no specific
> reason @addr and @data to be signed long types. Most of archs use them
> as if they were unsigned. So I'll prepare a patch series to change this
> and some cleanups of ptrace_request() and all of arch_ptrace() if no
> objection exists.

Sounds good to me.

	Arnd

      reply	other threads:[~2010-08-25 11:42 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-22 10:22 [PATCH 2/3] ptrace: add __force markup Namhyung Kim
2010-08-22 20:06 ` Arnd Bergmann
2010-08-23 16:06   ` [PATCH 2/3 RESEND] ptrace: cleanup address space conversion on ptrace_request() Namhyung Kim
2010-08-23 16:21     ` Christoph Hellwig
2010-08-23 16:38       ` Namhyung Kim
2010-08-24 11:45         ` Arnd Bergmann
2010-08-25  7:48           ` Namhyung Kim
2010-08-25 11:42             ` Arnd Bergmann [this message]

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