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On 11/03/2014 03:42 PM, j.glisse@gmail.com wrote:
> From: Jérôme Glisse <jglisse@redhat.com>
> 
> The event information will be usefull for new user of mmu_notifier
> API. The event argument differentiate between a vma disappearing, a
> page being write protected or simply a page being unmaped. This
> allow new user to take different path for different event for
> instance on unmap the resource used to track a vma are still valid
> and should stay around. While if the event is saying that a vma is
> being destroy it means that any resources used to track this vma
> can be free.

Looks good. All I found was one spelling mistake :)

> + *   - MMU_WRITE_BACK: memory is being written back to disk, all
> write accesses + *     must stop after invalidate_range_start
> callback returns. Read access are + *     still allowed. + * + *
> - MMU_WRITE_PROTECT: memory is being writte protected (ie should be
> mapped

                                             "write protected"

> + *     read only no matter what the vma memory protection allows).
> All write + *     accesses must stop after invalidate_range_start
> callback returns. Read + *     access are still allowed.

After fixing the spelling mistake, feel free to add my

Reviewed-by: Rik van Riel <riel@redhat.com>

- -- 
All rights reversed
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