Re: [PATCH] Prevent NULL pointer deref in grab_swap_token

[Andrew Morton]

Dean Roe <roe@xxxxxxx> wrote:
>
> grab_swap_token() assumes that the current process has an mm struct,
> which is not true for kernel threads invoking get_user_pages().  Since
> this should be extremely rare, just return from grab_swap_token()
> without doing anything.
> 

Fair enough.

Which kernel threads are running get_user_pages()?

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