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Date:   Wed, 27 Feb 2019 09:00:34 +0100
From:   Peter Zijlstra <>
To:     Masami Hiramatsu <>
Cc:     Joel Fernandes <>,
        Steven Rostedt <>,
        Linus Torvalds <>,,
        Andy Lutomirski <>,
        Ingo Molnar <>,
        Andrew Morton <>,
        Changbin Du <>,
        Jann Horn <>,
        Kees Cook <>,
        Andy Lutomirski <>,
        Alexei Starovoitov <>,
        Nadav Amit <>
Subject: Re: [RFC PATCH 0/4] tracing/probes: uaccess: Add support user-space

On Wed, Feb 27, 2019 at 04:41:04PM +0900, Masami Hiramatsu wrote:
> IMHO, checking in access_ok() inside it is reasonable, but as it
> commented, it is for "if pagefaults are enabled.". What we need another 
> access_ok() for the case when pagefaults are disabled, that is what PeterZ
> suggested in below mail.

FWIW, feel free to carry that patch with your other changes that require

You can add my SoB if you write the Changelog ;-)

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