linux-kernel - Re: [PATCH] mm/userfaultfd: Disable userfaultfd-wp on x86

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Message-ID: <20200413183549.GA758@redhat.com>
Date:   Mon, 13 Apr 2020 14:35:49 -0400
From:   Andrea Arcangeli <aarcange@...hat.com>
To:     Peter Xu <peterx@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Hillf Danton <hdanton@...a.com>,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        kernel test robot <lkp@...el.com>
Subject: Re: [PATCH] mm/userfaultfd: Disable userfaultfd-wp on x86_32

On Mon, Apr 13, 2020 at 10:16:08AM -0400, Peter Xu wrote:
> Userfaultfd-wp is not yet working on 32bit hosts, but it's
> accidentally enabled previously.  Disable it.
> 
> Fixes: 5a281062af1d ("userfaultfd: wp: add WP pagetable tracking to x86")
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: Andrea Arcangeli <aarcange@...hat.com>
> Cc: Hillf Danton <hdanton@...a.com>
> Reported-by: Naresh Kamboju <naresh.kamboju@...aro.org>
> Reported-by: kernel test robot <lkp@...el.com>
> Tested-by: Naresh Kamboju <naresh.kamboju@...aro.org>
> Signed-off-by: Peter Xu <peterx@...hat.com>
> ---
>  arch/x86/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Andrea Arcangeli <aarcange@...hat.com>

Thanks,
Andrea