On 06/28/2012 08:56 AM, Andrea Arcangeli wrote:

Without this, follow_page wouldn't trigger the NUMA hinting faults.

Signed-off-by: Andrea Arcangeli<redacted>

follow_page is called from many different places, not just
the process itself. One example would be ksm.

Do you really want to trigger NUMA hinting faults when the
mm != current->mm, or is that magically prevented somewhere?

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