mm/ksm: use folio in write_protect_page

Compound page is checked and skipped before write_protect_page() called,
use folio to save a few compound_head checks.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Alex Shi (tencent) <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
Cc: Izik Eidus <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Chris Wright <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions