Hi, This patch set did some cleanup and improvements for the page migration, please help to review. Thanks a lot. Changes from v2: - Simplify the page refcount validation suggested by Matthew. Changes from v1: - Add reviewed-by tags. - Add more comments for patch 1. - Drop unnecessary patch 5 from this patch set. Baolin Wang (4): mm: migrate: Simplify the file-backed pages validation when migrating its mapping mm: migrate: Introduce a local variable to get the number of pages mm: migrate: Fix the incorrect function name in comments mm: migrate: Change to use bool type for 'page_was_mapped' mm/migrate.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) -- 1.8.3.1