Hello, the biggest thing is probably #1, no longer trying (and failing) to charge replacement pages during migration and thus compaction. The rest is cleanups and tiny optimizations that move some checks out of the charge and uncharge core paths that do not apply to all types of pages alike. include/linux/memcontrol.h | 11 +-- mm/memcontrol.c | 205 +++++++++++++++++++++++--------------------- mm/migrate.c | 27 ++----- mm/shmem.c | 11 ++- mm/swapfile.c | 3 +- 5 files changed, 124 insertions(+), 133 deletions(-) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>