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SubjectRe: [PATCH v7 17/19] gup: Introduce FOLL_NOFAULT flag to disable page faults
On Thu, Sep 09, 2021 at 10:17:14AM -0700, Linus Torvalds wrote:
> So I think we should treat FOLL_FAST_ONLY as a special "internal to
> gup.c" flag, and perhaps not really compare it to the new
> FOLL_NOFAULT.
>
> In fact, maybe we could even just make FOLL_FAST_ONLY be the high bit,
> and not expose it in <linux/mm.h> and make it entirely private as a
> name in gup.c.

There are quite a few bits like that. I've been wanting to make them
private for 5.16.

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