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Subject: Re: [off-list] a path toward killing thread_info
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Fri, 17 Jun 2016 16:10:59 -0700
To: Al Viro <viro@ZenIV.linux.org.uk>, Andy Lutomirski <luto@amacapital.net>
CC: Kees Cook <keescook@chromium.org>, Peter Zijlstra <peterz@infradead.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@kernel.org>
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On June 17, 2016 4:04:31 PM PDT, Al Viro <viro@ZenIV.linux.org.uk> wrote:
>On Fri, Jun 17, 2016 at 03:41:49PM -0700, Andy Lutomirski wrote:
>
>> PeterZ, I'm thinking of adding task_ti_flags_ptr to directly find the
>> ti flags word given a task_struct * so the scheduler can use it. 
>Does
>> that seem reasonable to you?
>
>What are you trying to do?  Merge task_struct and thread_info?

Yes.

I did a half-finished patchset to do this once, in that I defined accessor functions which used container_of instead of pointers on architectures where this merge was enabled.
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