Andrew, please replace the 1/3, 1/3 fix, 2/3, 3/3 in mm-unstable by these v2 three: which incorporate the uninitialized warning fix, and adjustments according to Kirill's review comments, plus his Acks - I couldn't quite manage them just by -fixes. No functional change from the v1 series. 1/3 mm,thp,rmap: subpages_mapcount of PTE-mapped subpages 2/3 mm,thp,rmap: subpages_mapcount COMPOUND_MAPPED if PMD-mapped 3/3 mm,thp,rmap: clean up the end of __split_huge_pmd_locked() Documentation/mm/transhuge.rst | 10 +- include/linux/mm.h | 67 +++++++---- include/linux/rmap.h | 12 +- mm/huge_memory.c | 15 +-- mm/page_alloc.c | 2 +- mm/rmap.c | 219 ++++++++++------------------------- 6 files changed, 124 insertions(+), 201 deletions(-) Thanks! Hugh