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    SubjectRe: [PATCH 2/2] mm,migration: Fix race between shift_arg_pages and rmap_walk by guaranteeing rmap_walk finds PTEs created within the temporary stack

    On Sun, 9 May 2010, Linus Torvalds wrote:
    > So I never disliked that patch. I'm perfectly happy with a "don't migrate
    > these pages at all, because they are in a half-way state in the middle of
    > execve stack magic".

    Btw, I also think that Mel's patch could be made a lot _less_ magic by
    just marking that initial stack vma with a VM_STACK_INCOMPLETE_SETUP bit,
    instead of doing that "maybe_stack" thing. We could easily make that
    initial vma setup very explicit indeed, and then just clear that bit when
    we've moved the stack to its final position.


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      Last update: 2010-05-10 03:39    [W:0.019 / U:13.748 seconds]
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