Re: [PATCH 1/2] mm: Take all anon_vma locks in anon_vma_lock

[Linus Torvalds]

On Mon, 3 May 2010, Rik van Riel wrote:
> 
> Both the page migration code and the transparent hugepage patches expect
> 100% reliable rmap lookups and use page_lock_anon_vma(page) to prevent
> races with mmap, munmap, expand_stack, etc.

Pretty much same comments as for the other one. Why are we pandering to 
the case that is/should be unusual?

		Linus
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