smaps: teach smaps_pte_range() about THP pmds

This adds code to explicitly detect and handle pmd_trans_huge() pmds.  It
then passes HPAGE_SIZE units in to the smap_pte_entry() function instead
of PAGE_SIZE.

This means that using /proc/$pid/smaps now will no longer cause THPs to be
broken down in to small pages.

Signed-off-by: Dave Hansen <[email protected]>
Reviewed-by: Eric B Munson <[email protected]>
Tested-by: Eric B Munson <[email protected]>
Acked-by: Andrea Arcangeli <[email protected]>
Acked-by: David Rientjes <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Michael J Wolf <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Matt Mackall <[email protected]>
Cc: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions