Re: [PATCH 06/17] arm: mmu_gather rework

[Hugh Dickins]

On Fri, Feb 25, 2011 at 11:45 AM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> Grmbl.. so doing that would require flush_tlb_range() to take an mm, not
> a vma, but tile and arm both use the vma->flags & VM_EXEC test to avoid
> flushing their i-tlbs.
>
> I'm tempted to make them flush i-tlbs unconditionally as its still
> better than hitting an mm wide tlb flush due to the page table free.
>
> Ideas?

What's wrong with using vma->vm_mm?

Hugh
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