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Re: [Xen-devel] [PATCH] gnttab: lock the left grant table earlier in __gnttab_unmap_common()

>>> On 11.11.13 at 03:07, Matt Wilson <msw@xxxxxxxxx> wrote:
> Luckily today maptrack_limit never shrinks. But if at some point in

"Luckily" == intentionally.

> the future this were to change, checking maptrack_limit without
> holding the grant table spinlock would no longer be safe.

Are you convinced that this is the only issue with the limit
shrinking? I'm not, and therefore fixing the issue here seems
rather pointless to me.


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