Re: install_special_mapping && vm_pgoff (Was: vvar, gup && coredump)

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On 03/16, Andy Lutomirski wrote:
>
> Ick, you're probably right.  For what it's worth, the vdso *seems* to
> be okay (on 64-bit only, and only if you don't poke at it too hard) if
> you mremap it in one piece.  CRIU does that.

I need to run away till tomorrow, but looking at this code even if "one piece"
case doesn't look right if it was cow'ed. I'll verify tomorrow.

Oleg.

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