Re: [PATCH 0/1] uprobes: Kill __replace_page(), changeuprobe_write_opcode() to rely on gup(WRITE)

[Oleg Nesterov]

On 12/10, Oleg Nesterov wrote:
>
> On 12/10, Linus Torvalds wrote:
> >
> > We'd be *much* better off using get_user_pages_fast() if possible -
> > and I bet _is_ possible in 99% of all cases.
>
> We can't. get_user_pages_fast() takes mmap_sem.

Hmm. I am stupid, there is __get_user_pages_fast(). OK, I'll try
to think more.

Oleg.

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