linux-kernel - Re: [RFC PATCH 5/X] ptrace: mv task_struct->ptrace ptrace_task->pt_flags, kill ptrace

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Date:	Mon, 25 May 2009 05:33:03 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Roland McGrath <roland@...hat.com>,
	Christoph Hellwig <hch@...radead.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 5/X] ptrace: mv task_struct->ptrace
	ptrace_task->pt_flags, kill ptrace_link()


* Oleg Nesterov <oleg@...hat.com> wrote:

>  struct ptrace_task {
> +	unsigned long	pt_flags;
>  };

> -	return task->ptrace;
> +	return unlikely(task->ptrace_task) ?
> +		task->ptrace_task->pt_flags : 0;

Please no pt_ prefixes. It is abundantly clear from the 
'->ptrace_ctx' portion already that it's about ptrace - the rest 
should be a straightforward minimalistic naming - i.e. 
->ptrace_ctx->flags.

Also, is the conditional necessary? We should not be calling ptrace 
methods on tasks with no ptrace context.

Thanks,

	Ingo
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