On Thu, 31 Jan 2008, Robin Holt wrote:
> On Thu, Jan 31, 2008 at 05:57:25PM -0800, Christoph Lameter wrote:
> > Move page tables also needs to invalidate the external references
> > and hold new references off while moving page table entries.
>
> I must admit to not having spent any time thinking
On Thu, Jan 31, 2008 at 05:57:25PM -0800, Christoph Lameter wrote:
> Move page tables also needs to invalidate the external references
> and hold new references off while moving page table entries.
I must admit to not having spent any time thinking about this, but aren't
we moving the entries from
mmu_notifier: Provide invalidate_range for move_page_tables
Move page tables also needs to invalidate the external references
and hold new references off while moving page table entries.
This is already guaranteed by holding a writelock
on mmap_sem for get_user_pages() but follow_page() is not su
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